ARID/BRIGHT DNA binding domain family; The AT-rich interaction domain (ARID) family of transcription factors, found in a broad array of organisms from fungi to mammals, is characterized by a highly conserved, helix-turn-helix DNA binding domain that binds to the major groove of DNA. The ARID domain, also called BRIGHT, was first identified in the mouse B-cell-specific transcription factor Bright and in the product of the dead ringer (dri) gene of Drosophila melanogaster. ARID family members are implicated in normal development, differentiation, cell cycle regulation, transcriptional activation and chromatin remodeling. Different family members exhibit different DNA-binding properties. Drosophila Dri, mammalian ARID3A/3B/3C and ARID5A/5B, selectively bind AT-rich sites. However, ARID1A/1B, Drosophila Osa, yeast SWI1, ARID2, ARID4A/4B, JARID1A/1B/1C/1D, and JARID2, bind DNA without sequence specificity.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16882      2 RDNFLQQLYKFMEDRGTPINKPPVLGYKDLNLFKLFRLVYQQGGCDNIESGSVWKQIYMDLGIPILNSAASYNVKTAYRK 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16882     82 YLYGFE 87

first Tudor domain found in AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1 or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B ( also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC -dependent and -independent repression activities. It also acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only the chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 2075472747    4 ADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKQDNTTQLVQDDQVKGPLR 61
Cdd:cd20459      1 ADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKGDNSTQLVQDDQVKGPLR 58

Tudor domain superfamily; The Tudor domain is a conserved structural domain, originally identified in the Tudor protein of Drosophila, that adopts a beta-barrel-like core structure containing four short beta-strands followed by an alpha-helical region. It binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions. Tudor domain-containing proteins may mediate protein-protein interactions required for various DNA-templated biological processes, such as RNA metabolism, as well as histone modification and the DNA damage response. Members of this superfamily contain one or more copies of the Tudor domain.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 2075472747   62 VGAIVETRTSDGSIQEAIISKLTDASWYTVVFDDGDERTLRRTSLCLKGERHFAESE 118
Cdd:cd20462      1 VGAVVEVKNPDGTYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 57

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1, or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndrome. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through the interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B (also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC-dependent and -independent repression activities. It is also involved in the pocket domain of pRb-mediated repression of E2F-dependent transcription and cellular proliferation. Moreover, it acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains a Tudor domain, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16882      2 RDNFLQQLYKFMEDRGTPINKPPVLGYKDLNLFKLFRLVYQQGGCDNIESGSVWKQIYMDLGIPILNSAASYNVKTAYRK 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16882     82 YLYGFE 87

first Tudor domain found in AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1 or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B ( also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC -dependent and -independent repression activities. It also acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only the chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 2075472747    4 ADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKQDNTTQLVQDDQVKGPLR 61
Cdd:cd20459      1 ADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKGDNSTQLVQDDQVKGPLR 58

BRIGHT, ARID (A/T-rich interaction domain) domain; DNA-binding domain containing a helix-turn-helix structure

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747   312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:smart00501    3 RVLFLDRLYKFMEERGSPLKKIPVIGGKPLDLYRLYRLVQERGGYDQVTKDKKWKEIARELGIPDTSTSAASSLRKHYER 82

                            90
                    ....*....|
gi 2075472747   392 YLYGFEEYCR 401
Cdd:smart00501   83 YLLPYERFLR 92

ARID/BRIGHT DNA binding domain; This domain is know as ARID for AT-Rich Interaction Domain, and also known as the BRIGHT domain.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:pfam01388    2 KELFLKSLRKFHEKRGTPLKQIPVIGGKPVDLYKLYKAVQKLGGYDKVTEKNLWREVAEKLGFPPSAASAATQLKQIYEK 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:pfam01388   82 YLLPYE 87

Tudor domain; Domain of unknown function present in several RNA-binding proteins. 10 copies in the Drosophila Tudor protein. Initial proposal that the survival motor neuron gene product contain a Tudor domain are corroborated by more recent database search techniques such as PSI-BLAST (unpublished).

                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*..
gi 2075472747    58 GPLRVGAIVETRTSDGSIQEAIISKLTDASWYTVVFDD-GDERTLRRTSLCLKGERH 113
Cdd:smart00333    1 PTFKVGDKVAARWEDGEWYRARIVKVDGEQLYEVFFIDyGNEEVVPPSDLRQLPEEL 57

MYST -like histone acetyltransferase; Provisional

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 2075472747  577 GTKVKVKY---GRGKTQKIYEASiKSTEMDDGEVLYLVHYYGWNVRYDEWVKADRI 629
Cdd:PLN00104    57 GTRVMCRWrfdGKYHPVKVIERR-RGGSGGPNDYEYYVHYTEFNRRLDEWVKLEQL 111

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1, or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndrome. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through the interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B (also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC-dependent and -independent repression activities. It is also involved in the pocket domain of pRb-mediated repression of E2F-dependent transcription and cellular proliferation. Moreover, it acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains a Tudor domain, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16882      2 RDNFLQQLYKFMEDRGTPINKPPVLGYKDLNLFKLFRLVYQQGGCDNIESGSVWKQIYMDLGIPILNSAASYNVKTAYRK 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16882     82 YLYGFE 87

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID4A, ARID4B and similar proteins; This subfamily contains ARID4A and its paralog ARID4B, both of which are retinoblastoma (Rb)-binding proteins that function as coactivators to enhance the androgen receptor (AR) and Rb transcriptional activity, and play important roles in the AR and Rb pathways to control male fertility. They also act as the leukemia and tumor suppressors involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndrome. Moreover, they associate with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through the interaction with each other, as well as with the breast cancer associated tumor suppressor ING1 and the breast cancer metastasis suppressor BRMS1. Both ARID4A and ARID4B contain a Tudor domain, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16868      2 KENFLEQLYKFMEDRGTPINKPPVLGYKDLDLFKLYKLVQELGGMERVSQGAKWRSIYQQLGIPVLNSAASHNIKQAYKK 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16868     82 YLYAFE 87

first Tudor domain found in AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1 or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B ( also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC -dependent and -independent repression activities. It also acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only the chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 2075472747    4 ADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKQDNTTQLVQDDQVKGPLR 61
Cdd:cd20459      1 ADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKGDNSTQLVQDDQVKGPLR 58

BRIGHT, ARID (A/T-rich interaction domain) domain; DNA-binding domain containing a helix-turn-helix structure

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747   312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:smart00501    3 RVLFLDRLYKFMEERGSPLKKIPVIGGKPLDLYRLYRLVQERGGYDQVTKDKKWKEIARELGIPDTSTSAASSLRKHYER 82

                            90
                    ....*....|
gi 2075472747   392 YLYGFEEYCR 401
Cdd:smart00501   83 YLLPYERFLR 92

second Tudor domain found in AT-rich interactive domain-containing protein 4B (ARID4B) and similar proteins; ARID4B, also called 180 kDa Sin3-associated polypeptide (p180), breast cancer-associated antigen BRCAA1, histone deacetylase complex subunit SAP180, or retinoblastoma-binding protein 1-like 1 (RBP1L1 or RBBP1L1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and ARID4A ( also known as RBP1). ARID4B plays a causative role in metastatic progression of breast cancer. It may also be associated with regulating the cell cycle. ARID4B contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 2075472747   62 VGAIVETRTSDGSIQEAIISKLTDASWYTVVFDDGDERTLRRTSLCLKGERHFAESE 118
Cdd:cd20462      1 VGAVVEVKNPDGTYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 57

second Tudor domain found in AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1 or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B ( also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC -dependent and -independent repression activities. It also acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only the chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747   62 VGAIVETRTSDGSIQEAIISKLTDASWYTVVFDDGDERTLRRTSLCLKGERHFAESETLD 121
Cdd:cd20461      1 VGAIVETRTSDGSFQEAIISKLTDASWYTVVFDDGDERTLRRTSLCLKGERHFAESETLD 60

first Tudor domain found in AT-rich interactive domain-containing protein 4B (ARID4B) and similar proteins; ARID4B, also called 180 kDa Sin3-associated polypeptide (p180), breast cancer-associated antigen BRCAA1, histone deacetylase complex subunit SAP180, or retinoblastoma-binding protein 1-like 1 (RBP1L1 or RBBP1L1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and ARID4A ( also known as RBP1). ARID4B plays a causative role in metastatic progression of breast cancer. It may also be associated with regulating the cell cycle. ARID4B contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 2075472747    1 MKAADEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKQDNTTQLVQDDQVKGPLR 61
Cdd:cd20460      1 MKALDEPPYLTVGTDVSAKYRGAFCEAKIKTAKRLVKVKVTFRHDSSTVEVQDDHIKGPLK 61

first Tudor domain found in AT-rich interactive domain-containing protein ARID4 family; The family contains ARID4A and its paralog ARID4B, both of which are retinoblastoma (RB)-binding proteins that function as coactivators to enhance the androgen receptor (AR) and RB transcriptional activity, and play important roles in the AR and RB pathways to control male fertility. They also act as the leukemia and tumor suppressors involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. Moreover, they associate with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through their interaction with each other, as well as with the breast cancer associated tumor suppressor ING1 and the breast cancer metastasis suppressor BRMS1. Both ARID4A and ARID4B contain tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 2075472747    9 YLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKQDNTTQLVQDDQVKGPLR 61
Cdd:cd20389      1 YLPVGTEVSAKYRGAFCEAKVKKVKKLVKCKVTFKDNGTSVVVSDDNIKGPLK 53

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID5A, ARID5B, and similar proteins; This subfamily contains ARID5A and its paralog ARID5B. ARID5A, also called modulator recognition factor 1 (MRF-1), is an estrogen receptor alpha (ER alpha)-interacting protein that is expressed abundantly in cardiovascular tissues and suppresses ER alpha-induced transactivation. It also plays an important role in the promotion of inflammatory processes and autoimmune diseases. ARID5B, also called MRF1-like protein or modulator recognition factor 2 (MRF-2), is a DNA-binding protein that directly interacts with plant homeodomain (PHD) finger 2 (PHF2) to form a protein kinase A (PKA)-dependent PHF2-ARID5B histone H3K9Me2 demethylase complex. It also functions as a transcriptional co-regulator for the transcription factor sex determining region Y (SRY)-box protein 9 (Sox9) and promotes chondrogenesis through histone modification. Moreover, ARID5B is highly expressed in the cardiovascular system and may play essential roles in the phenotypic change of smooth muscle cells (SMCs) through its regulation of SMC differentiation. Both ARID5A and ARID5B contain an AT-rich DNA-interacting domain (ARID, also known as BRIGHT).

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  314 NFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLG-IPILNSAASYNVKTaYRKY 392
Cdd:cd16869      4 AFLKLLYKFMKDRGTPIERIPHLGFKQIDLYTFFKLVQKLGGYEQVTAKRLWKHVYDELGgNPSSTSAATCTRRH-YEKL 82

                   ....*
gi 2075472747  393 LYGFE 397
Cdd:cd16869     83 LLPYE 87

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID3A, ARID3B, ARID3C, dead ringer (Dri) from Drosophila melanogaster, and similar proteins; The ARID3 subfamily includes AT-rich interactive domain (ARID, also known as BRIGHT)-containing proteins ARID3A, ARID3B and ARID3C, which are the most direct mammalian counterparts of the Drosophila "dead ringer" protein Dri. They consist of an acidic N-terminal region of unknown function, the central ARID matrix association (or attachment) region (MAR)-DNA binding domain, a SUMO-I conjugation (SUMO) motif, and a multifunctional homomerization/nuclear export REKLES domain in the C-terminal third of the molecule. The ARID domain in this subfamily has been described as the "extended" or e-ARID due to additional conserved sequences at both the N and C termini of the core ARID region. The REKLES domain is found only in the ARID3 subfamily. It has co-evolved with and regulates functional properties of the ARID DNA-binding domain.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16867     13 RKEFLDDLFSFMQKRGTPVNRIPIMAKQVLDLYELYRLVVEKGGLVEVINKKIWREITKGLNLPSSITSAAFTLRTQYMK 92

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16867     93 YLYPYE 98

ARID/BRIGHT DNA binding domain of yeast SWI/SNF chromatin-remodeling complex subunit Swi1p and similar proteins; Saccharomyces cerevisiae Swi1p, also called SWI/SNF chromatin-remodeling complex subunit SWI1, regulatory protein GAM3, or transcription regulatory protein ADR6, is a transcription regulatory protein that is a subunit of the SWI/SNF complex, which plays critical roles in the regulation of gene transcription and expression. It can exist as a prion, [SWI(+)], which demonstrates a link between prionogenesis and global transcriptional regulation. Swi1p contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT) that binds DNA nonspecifically. This subfamily also includes Schizosaccharomyces pombe SWI/SNF chromatin-remodeling complex subunit sol1 (sol1p, also known as switch one-like protein). sol1p is a homolog of S. cerevisiae Swi1p and is also a part of SWI/SNF chromatin-remodeling complex.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIP-ILNSAASYNVKTAYR 390
Cdd:cd16871      3 PEQFMKSLREFMAKRGTPIEQQPVIGGRPVNLFRLYQLVQKLGGSRQVTQNNQWPRVAQKLGFPpEQNPQVAQQLAQIYQ 82

                   ....*...
gi 2075472747  391 KYLYGFEE 398
Cdd:cd16871     83 RYLLPYEE 90

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 3B (ARID3B) and similar proteins; ARID3B, also called Bright and dead ringer protein, or Bright-Dri-like protein (Bdp), is a DNA binding protein involved in cellular immortalization, epithelial-mesenchymal transition (EMT), and tumorigenesis. Its expression is differentially regulated in normal and malignant tissues. It is required for heart development by regulating the motility and differentiation of heart progenitors. ARID3B is overexpressed in neuroblastoma and ovarian cancer. It acts as a novel target with roles in cell motility in breast cancer cells, promotes migration of mouse embryo fibroblasts (MEFs) and breast cancer cells, and induces tumor necrosis factor alpha (TNFalpha)-mediated apoptosis. ARID3B contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a SUMO-I conjugation (SUMO) motif and a multifunctional homomerization/nuclear export REKLES domain, which consists of two subdomains: a modestly conserved N-terminal REKLES alpha and a highly conserved (among ARID3 orthologous proteins) C-terminal REKLES beta.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16879     15 RKEFLDDLFAFMQKRGTPINRIPIMAKQVLDLYMLYKLVTEKGGLVEVINKKIWREITKGLNLPTSITSAAFTLRTQYMK 94

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16879     95 YLYPYE 100

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 3A (ARID3A) and similar proteins; ARID3A, also called B-cell regulator of IgH transcription (Bright), dead ringer-like protein 1 (Dril1), or E2F-binding protein 1 (E2FBP1), is an ubiquitously expressed DNA-binding protein that has been implicated in embryonic patterning, cell lineage gene regulation, and cell cycle control, chromatin remodeling and transcriptional regulation. It was originally identified as a B cell-specific trans-activator of immunoglobulin heavy-chain (IgH) transcription, which increases immunoglobulin transcription in antigen-activated B cells and plays regulatory roles in hematopoiesis. It also functions as an E2F transcription regulator, inducing promyelocytic leukemia protein (PML) reduction and suppressing the formation of PML-nuclear bodies. It antagonizes the p16(INK4A)-Rb tumor suppressor machinery by regulating PML stability. ARID3A transcriptional activity can be modulated by SUMO (Small Ubiquitin-related Modifier) modification through the interaction with the SUMO-conjugating enzyme Ubc9. ARID3A also plays an important role in marginal zone B lymphocyte development and autoantibody production. Furthermore, ARID3A is a direct p53 target gene. It controls cell growth in a p53-dependent manner. ARID3A contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a SUMO-I conjugation (SUMO) motif and a multifunctional homomerization/nuclear export REKLES domain, which consists of two subdomains: a modestly conserved N-terminal REKLES alpha and a highly conserved (among ARID3 orthologous proteins) C-terminal REKLES beta.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16878     23 RKEFLDDLFSFMQKRGTPVNRIPIMAKQVLDLYMLYVLVTEKGGLVEVINKKLWREITKGLNLPTSITSAAFTLRTQYMK 102

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16878    103 YLYPYE 108

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 2 (ARID2) and similar proteins; ARID2, also called BRG1-associated factor 200 (BAF200) or zinc finger protein with activation potential (Zipzap/p200), is a novel serum response factor (SRF)-binding protein with multiple conserved domains, including an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), RFX DNA-binding domain, a glutamine-rich domain, and two C2H2 zinc fingers. It binds DNA without sequence specificity. ARID2 is an intrinsic subunit of PBAF (SWI/SNF-B) remodeling complex, which needs ARID2 to play an essential role in promoting osteoblast differentiation, maintaining cellular identity and activating tissue-specific gene expression. Moreover, ARID2 may function as a tumor suppressor in many cancers. It may also serve as a transcription co-activator for the regulation of cardiac gene expression, and is required for heart morphogenesis and coronary artery development.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRK 391
Cdd:cd16866      2 YDAFLNELRQFHASRGTPFKKIPVVGGKELDLYLLYSKVTALGGWAKVTDKNKWEEILEDFNFPRGCSNAAFALKQIYLR 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16866     82 YLEAYE 87

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 1B (ARID1B) and similar proteins; ARID1B, also called BRG1-associated factor 250b (BAF250B), BRG1-binding protein ELD/OSA1, Osa homolog 2 (Osa2), or p250R, is the largest subunit of ATP-dependent SWItch/sucrose nonfermentable (SWI/SNF) chromatin remodeling complex, which plays a critical role in transcriptional control and gene expression. ARID1B exhibits tumour-suppressor activities in pancreatic cancer cell lines. Mutations in the ARID1B gene cause Coffin-Siris syndrome, exhibiting developmental defects, and haplo-insufficiency of ARID1B is a frequent cause of intellectual disability. Moreover, mutations in the ARID1B gene have been found in many cancers. ARID1B contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), which binds DNA in a non-sequence-specific manner similar to ARID1A.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASyNVKTAYRK 391
Cdd:cd16877      3 RKLWVDRYLTFMEERGTPVASLPAVGKKPLDLFRLYVCVKEIGGLAQVNKNKKWRELATNLNVGTSSSAAS-SLKKQYIQ 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16877     82 YLFAFE 87

RNA binding activity-knot of a chromodomain; This is a novel knotted tudor domain which is required for binding to RNA. The know influences the loop conformation of the helical turn Ht2 - residues 61-6 3- that is located at the side opposite the knot in the tudor domain-chromodomain; stabilization of Ht2 is essential for RNA binding.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 2075472747  577 GTKVkvkYGRGKTQKIYEASIKSTEMDDGEVLYLVHYYGWNVRYDEWVKADRI 629
Cdd:pfam11717    4 GCKV---LVRKRDGEWRLAEILSIRPKKGKYEYYVHYVGFNKRLDEWVPEDRI 53

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 1A (ARID1A) and similar proteins; ARID1A, also called B120, BRG1-associated factor 250a (BAF250A), Osa homolog 1(OSA1), SWI-like protein, SWI/SNF complex protein p270, or SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin subfamily F member 1 (SWI1), has been identified as a novel tumor suppressor in various tumor types. It interacts with BRG1 adenosine triphosphatase to form a SWItch/Sucrose NonFermentable (SWI/SNF) chromatin remodeling protein complex, which plays a critical role in transcriptional control and gene expression. ARID1A contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), and Eld/Osa homology domains (EHD) 1 and 2 within the C-terminus. The ARID in ARID1A binds nonspecific DNA in general and plays an important role in targeting SWI/SNF to chromatin. The EHD1 may be capable of mediating an intramolecular association with EHD2, and/or an intermolecular association resulting in homo- or hetero-dimerization. The EHD2 binds Swi2/Brahma homologue Brahma-related gene 1 (BRG1, also known as Snf2b), a human homologue of yeast Swi2.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  312 RDNFLQQLYKFMEDRGTPINKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASyNVKTAYRK 391
Cdd:cd16876      3 RKMWVDRYLAFTEEKAMGMTNLPAVGRKPLDLYRLYVSVKEIGGLTQVNKNKKWRELATNLNVGTSSSAAS-SLKKQYIQ 81

                   ....*.
gi 2075472747  392 YLYGFE 397
Cdd:cd16876     82 CLYAFE 87

Chromatin organization modifier domain;

                            10        20        30
                    ....*....|....*....|....*....|....*..
gi 2075472747   594 EASIKSTEMDDGEVLYLVHYYGWNVRYDEWVKADRII 630
Cdd:smart00298    5 EKILDHRWKKKGELEYLVKWKGYSYSEDTWEPEENLL 41

ARID/BRIGHT DNA binding domain of lysine-specific demethylase 5A (KDM5A); KDM5A, also called histone demethylase JARID1A, Jumonji/ARID domain-containing protein 1A, or Retinoblastoma-binding protein 2 (RBBP-2 or RBP2), was originally identified as a retinoblastoma protein (Rb)-binding partner; its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK and BMAL1. KDM5A functions as the trimethylated histone H3 lysine 4 (H3K4me3) demethylase that belongs to the JARID subfamily within the JmjC proteins. It also displays DNA-binding activities that can recognize the specific DNA sequence CCGCCC. KDM5A contains the catalytic JmjC domain, a JmjN domain, an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a C5HC2 zinc finger, as well as three plant homeodomain (PHD) fingers.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  314 NFLQQLYKFMEDRGTPInKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYnVKTAYRKYL 393
Cdd:cd16873      6 DFLDQLAKFWELQGSTL-KIPVVERKILDLYALSKIVASEGGFEMVTKEKKWSKVGSRMGYLPGKGTGSL-LKSHYERIL 83

                   ....
gi 2075472747  394 YGFE 397
Cdd:cd16873     84 YPYE 87

ARID/BRIGHT DNA binding domain of lysine-specific demethylase KDM5C and KDM5D; This group includes KDM5C and KDM5D, both of which belong to the JARID subfamily within the JmjC proteins. KDM5C, also called histone demethylase JARID1C, Jumonji/ARID domain-containing protein 1C, protein SmcX, or protein Xe169, is a H3K4 trimethyl-histone demethylase that catalyzes demethylation of H3K4me3 and H3K4me2 to H3K4me1. It plays a role in neuronal survival and dendrite development. KDM5C defects are associated with X-linked mental retardation (XLMR). KDM5D, also called histocompatibility Y antigen (H-Y), histone demethylase JARID1D, Jumonji/ARID domain-containing protein 1D, or protein SmcY, is a male-specific antigen that shows a demethylase activity specific for di- and tri-methylated histone H3K4 (H3K4me3 and H3K4me2), and has a male-specific function as a histone H3K4 demethylase by recruiting a meiosis-regulatory protein, MSH5, to condensed DNA. KDM5D directly interacts with a polycomb-like protein Ring6a/MBLR, and plays a role in regulation of transcriptional initiation through H3K4 demethylation. Both KDM5C and KDM5D contain the catalytic JmjC domain, a JmjN domain, an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a C5HC2 zinc finger, as well as two plant homeodomain (PHD) fingers.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  314 NFLQQLYKFMEDRGTPInKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYnVKTAYRKYL 393
Cdd:cd16875      6 NYLDQIAKFWEIQGSSL-KIPNVERRILDLYSLSKIVQEEGGYEAICKDRRWARVAQRLGYPPGKNIGSL-LRSHYERII 83

                   ....*.
gi 2075472747  394 YGFEEY 399
Cdd:cd16875     84 YPYEMY 89

ARID/BRIGHT DNA binding domain of Arabidopsis thaliana high mobility group B proteins HMGB9, HMGB10, HMGB11, HMGB15 and similar proteins; This subfamily includes a group of conserved plant DNA-binding proteins, including HMGB9 (or ARID-HMG1), HMGB10 (or ARID-HMG2), HMGB11, and HMGB15. They have been termed ARID-HMG proteins, due to containing two DNA-binding domains, an N-terminal AT-rich DNA-interacting domain (ARID, also known as BRIGHT), and a C-terminal high mobility group (HMG)-box domain. They are widely expressed in Arabidopsis and localize primarily to the nucleus. HMGB9/ARID-HMG1 binds specifically to A/T-rich DNA. HMGB15 is a transcription factor predominantly expressed in mature pollen grains and pollen tubes. It may work in the form of a homodimer, or interact with HMGB9, HMGB10 and HMGB11 to form heteromultimers in plant cells. HMGB15 is required for pollen tube growth in Arabidopsis and is involved in transcriptional regulation through the interaction with AGL66 and AGL104.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2075472747  315 FLQQLYKFMEDRGTPInKAPVLGYKDLNLFKLFRLVYHQGGCDSIDSGAVWKQIYMDLGIPILNSAASYNVKTAYRKYLY 394
Cdd:cd16872      5 FWETLRKFHESLGTKF-RIPIVGGKELDLHRLYKEVTSRGGLEKVIKDRKWKEVAAVFNFPPTITNASFVLRKYYLSLLH 83

                   ...
gi 2075472747  395 GFE 397
Cdd:cd16872     84 HYE 86

chromo barrel domain of Drosophila melanogaster males-absent on the first protein, and similar proteins; This subgroup includes the chromo barrel domains found in human Tat-interactive protein 60 (TIP60, (also known as KAT5 or HTATIP), Drosophila melanogaster males-absent on the first (MOF) protein, and Saccharomyces ESA1. SH3-fold-beta-barrel domains of the chromo-like superfamily include chromodomains, chromo shadow domains, and chromo barrel domains, and are implicated in the recognition of lysine-methylated histone tails and nucleic acids. The chromodomain differs, in that it lacks the first strand of the SH3-fold-beta-barrel. This first strand is altered by insertion in the chromo shadow domains, and chromo barrel domains are typical SH3-fold-beta-barrel domains with sequence similarity to the canonical chromo domain. The MOF-like chromo barrels may be may be auto-inhibited, i.e. they seem to have occluded peptide binding sites.

                           10        20
                   ....*....|....*....|....*
gi 2075472747  605 GEVLYLVHYYGWNVRYDEWVKADRI 629
Cdd:cd18642     27 APPEFYVHYVELNRRLDEWITTDRI 51