Forkhead (FH) domain found in Forkhead box protein C1 (FOXC1) and similar proteins; FOXC1, also called Forkhead-related protein FKHL7, or Forkhead-related transcription factor 3 (FREAC-3), is a DNA-binding transcriptional factor that plays a role in a broad range of cellular and developmental processes such as the development of the eyes, bones, cardiovascular system, kidneys, and skin. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  67 PKDLVKPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYW 146
Cdd:cd20044    1 PKDMVKPPYSYIALITMAIQNAPDKKITLNGIYQFIMERFPFYRDNKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYW 80

                         90
                 ....*....|...
gi 310923326 147 TLDPDSYNMFENG 159
Cdd:cd20044   81 TLDPDSYNMFENG 93

Forkhead (FH) domain found in Forkhead box protein C1 (FOXC1) and similar proteins; FOXC1, also called Forkhead-related protein FKHL7, or Forkhead-related transcription factor 3 (FREAC-3), is a DNA-binding transcriptional factor that plays a role in a broad range of cellular and developmental processes such as the development of the eyes, bones, cardiovascular system, kidneys, and skin. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  67 PKDLVKPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYW 146
Cdd:cd20044    1 PKDMVKPPYSYIALITMAIQNAPDKKITLNGIYQFIMERFPFYRDNKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYW 80

                         90
                 ....*....|...
gi 310923326 147 TLDPDSYNMFENG 159
Cdd:cd20044   81 TLDPDSYNMFENG 93

FORKHEAD; FORKHEAD, also known as a "winged helix"

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326    72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:smart00339   1 KPPYSYIALIAMAILSSPDKRLTLSEIYKWIEDNFPYYRENRAGWQNSIRHNLSLNDCFVKVPREGDRPGKGSYWTLDPA 80

                   ....*....
gi 310923326   152 SYNMFENGS 160
Cdd:smart00339  81 AENMFENGN 89

Forkhead (FH) domain found in Forkhead box protein C1 (FOXC1) and similar proteins; FOXC1, also called Forkhead-related protein FKHL7, or Forkhead-related transcription factor 3 (FREAC-3), is a DNA-binding transcriptional factor that plays a role in a broad range of cellular and developmental processes such as the development of the eyes, bones, cardiovascular system, kidneys, and skin. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  67 PKDLVKPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYW 146
Cdd:cd20044    1 PKDMVKPPYSYIALITMAIQNAPDKKITLNGIYQFIMERFPFYRDNKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYW 80

                         90
                 ....*....|...
gi 310923326 147 TLDPDSYNMFENG 159
Cdd:cd20044   81 TLDPDSYNMFENG 93

Forkhead (FH) domain found in Forkhead box protein L1 (FOXL1) and similar proteins; FOXL1, also called Forkhead-related protein FKHL11 or Forkhead-related transcription factor 7 (FREAC-7), acts as a transcription factor required for proper proliferation and differentiation in the gastrointestinal epithelium. It may play a critical role in suppressing tumorigenesis. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  71 VKPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDP 150
Cdd:cd20027    2 QKPPYSYIALIAMAIKSAPDQKVTLNGIYQFIMDRFPYYHDNKQGWQNSIRHNLSLNDCFVKVPREKGRPGKGNYWTLDP 81

                         90
                 ....*....|.
gi 310923326 151 DSYNMFENGSF 161
Cdd:cd20027   82 DCEEMFENGNY 92

Forkhead domain;

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326   72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:pfam00250   1 KPPYSYAALIAMAILSSPEKKLTLSEIYEWISENFPYYRTADKGWQNSIRHNLSLNKCFVKVPRPKDEPGKGSYWTIDPE 80

                  ....*.
gi 310923326  152 SYNMFE 157
Cdd:pfam00250  81 YEEMFE 86

Forkhead (FH) domain found in the Forkhead box protein C (FOXC) subfamily; The FOXC subfamily includes two winged helix transcription factors, FOXC1 (also called Forkhead-related protein FKHL7, or Forkhead-related transcription factor 3) and FOXC2 (also called Forkhead-related protein FKHL14, or Mesenchyme fork head protein 1). FOXC1 is a DNA-binding transcriptional factor that plays a role in a broad range of cellular and developmental processes such as the development of the eyes, bones, cardiovascular system, kidneys, and skin. FOXC2 acts as a transcriptional activator that might be involved in the formation of special mesenchymal tissues. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTL 148
Cdd:cd20017    1 KPPYSYIALIAMAIQNAPDKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTL 77

Forkhead (FH) domain found in Forkhead box protein L2 (FOXL2) and similar proteins; FOXL2 is a transcriptional regulator that is essential for ovary differentiation and maintenance, and repression of the genetic program for somatic testis determination. Mutations in the FOXL2 gene cause blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) types I and II, a rare genetic disorder. In BPES type I, a complex eyelid malformation is associated with premature ovarian failure (POF), whereas in BPES type II, the eyelid defect occurs as an isolated entity. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20028    1 KPPYSYVALIAMAIRESPEKRLTLSGIYQYIIAKFPYYEKNKKGWQNSIRHNLSLNECFVKVPREGGGERKGNYWTLDPA 80

                 ....*...
gi 310923326 152 SYNMFENG 159
Cdd:cd20028   81 CEDMFEKG 88

Forkhead (FH) domain found in the Forkhead box protein A (FOXA) subfamily; The FOXA subfamily includes three winged helix transcription factors, FOXA1 (also called hepatocyte nuclear factor 3-alpha or transcription factor 3A), FOXA2 (also called hepatocyte nuclear factor 3-beta or transcription factor 3B), and FOXA3 (also called hepatocyte nuclear factor 3-gamma or transcription factor 3G). FOXA1 is essential for epithelial lineage differentiation and has been found to be upregulated in numerous cancers. FOXA2 controls cell differentiation. It is a key transcriptional regulator that maintains airway mucus homeostasis and may also have an important role in bone metabolism. FOXA3 acts as an essential transcriptional regulator engaged in adipogenesis and energy metabolism. This subfamily also includes Xenopus tropicalis FOXA4, Drosophila melanogaster protein fork head (dFKH), and similar proteins. FOXA4 is only present in amphibians, where it is required for the correct regionalization and maintenance of the central nervous system. dFKH promotes terminal as opposed to segmental development. In the absence of dFKH, this developmental switch does not occur. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20015    1 KPPYSYISLITMAIQQSPSKMLTLSEIYQWIMDLFPYYRQNQQRWQNSIRHSLSFNDCFVKVPRSPDKPGKGSYWTLHPD 80

                         90
                 ....*....|....*..
gi 310923326 152 SYNMFENGSFLRRRRRF 168
Cdd:cd20015   81 SGNMFENGCYLRRQKRF 97

Forkhead (FH) domain found in Forkhead box protein D4 (FOXD4) and similar proteins; FOXD4, also called Forkhead-related protein FKHL9, Forkhead-related transcription factor 5 (FREAC-5), or myeloid factor-alpha, is essential for establishing neural cell fate and for neuronal differentiation. The family also includes Forkhead box protein D4-like proteins, FOXD4L1-6. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20048    1 KPPYSYIALITMAILQSPHKRLTLSGICAFISGRFPYYRRKFPAWQNSIRHNLSLNDCFVKIPREPGHPGKGNYWSLDPA 80

                         90
                 ....*....|.
gi 310923326 152 SYNMFENGSFL 162
Cdd:cd20048   81 SQDMFDNGSFL 91

Forkhead (FH) domain found in Forkhead box protein A2 (FOXA2) and similar proteins; FOXA2, also called hepatocyte nuclear factor 3-beta (HNF-3-beta or HNF-3B) or transcription factor 3B (TCF-3B), acts as a core transcription factor that controls cell differentiation. It is a key transcriptional regulator that maintains airway mucus homeostasis. It may also have an important role in bone metabolism. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20039    5 KPPYSYISLITMAIQQSPNKMLTLSEIYQWIMDLFPFYRQNQQRWQNSIRHSLSFNDCFLKVPRSPDKPGKGSFWTLHPD 84

                         90
                 ....*....|....*...
gi 310923326 152 SYNMFENGSFLRRRRRFK 169
Cdd:cd20039   85 SGNMFENGCYLRRQKRFK 102

Forkhead (FH) domain found in Forkhead box protein A1 (FOXA1) and similar proteins; FOXA1, also called hepatocyte nuclear factor 3-alpha (HNF-3-alpha or HNF-3A) or transcription factor 3A (TCF-3A), acts as a transcription factor that is essential for epithelial lineage differentiation. It has been found to be upregulated in numerous cancers. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20038   14 KPPYSYISLITMAIQQAPSKMLTLSEIYQWIMDLFPYYRQNQQRWQNSIRHSLSFNDCFVKVARSPDKPGKGSYWTLHPD 93

                         90
                 ....*....|....*...
gi 310923326 152 SYNMFENGSFLRRRRRFK 169
Cdd:cd20038   94 SGNMFENGCYLRRQKRFK 111

Forkhead (FH) domain found in Forkhead box protein A3 (FOXA3) and similar proteins; FOXA3, also called hepatocyte nuclear factor 3-gamma (HNF-3-gamma or HNF-3G), fork head-related protein FKH H3, or transcription factor 3G (TCF-3G), acts as an essential transcriptional regulator engaged in adipogenesis and energy metabolism. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20040    3 KPPYSYISLITMAIQQAPSKMLTLNEIYQWIMDLFPYYRENQQRWQNSIRHSLSFNDCFVKVARSPDKPGKGSYWALHPN 82

                         90
                 ....*....|....*...
gi 310923326 152 SYNMFENGSFLRRRRRFK 169
Cdd:cd20040   83 SGNMFENGCYLRRQKRFK 100

Forkhead (FH) domain found in the Forkhead box protein B (FOXB) subfamily; The FOXB subfamily includes two winged helix transcription factors, FOXB1 (also called transcription factor FKH-5) and FOXB2 (also called transcription factor FKH-4). FOXB1 controls development of mammary glands and regions of the central nervous system (CNS) that regulate the milk-ejection reflex. It is essential for access of mammillothalamic axons to the thalamus. FOXB2 may act as a tumor suppressor; it has been found to inhibit the malignant characteristics of the pancreatic cancer cell line Panc-1 in vitro. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDP 150
Cdd:cd20016    1 KPPYSYISLTAMAIQSSPEKMLPLSDIYKFIMDRFPYYRKNTQRWQNSLRHNLSFNDCFIKIPRRPDRPGKGSYWALHP 79

Forkhead (FH) domain found in Forkhead box proteins, FOXJ2, FOXJ3 and similar proteins; The FOXJ2-like subfamily includes two winged helix transcription factors, FOXJ2 and FOXJ3. FOXJ2, also called Forkhead homologous X (FHX), plays an important role in tumorigenesis, progression, and metastasis of certain cancers. It acts as a transcriptional activator that can bind to two different type of DNA binding sites. FOXJ3 is a transcription factor which regulates sperm function. It transcriptionally activates Mef2c and regulates adult skeletal muscle fiber type identity. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTL 148
Cdd:cd20024    1 KPPYSYATLITFAINSSPKKKMTLSEIYTWICENFPYYREAGTGWKNSIRHNLSLNKCFKKVPRSKDDPGKGSYWTL 77

Forkhead (FH) domain found in Forkhead box protein B2 (FOXB2) and similar proteins; FOXB2, also called transcription factor FKH-4, may act as a transcription factor. It may also act as a tumor suppressor; it has been found to inhibit the malignant characteristics of the pancreatic cancer cell line Panc-1 in vitro. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20043   13 KPPYSYISLTAMAIQSSQEKMLPLSDIYKFIMDRFPYYRENTQRWQNSLRHNLSFNDCFIKIPRRPDQPGKGSFWALHPD 92

                         90
                 ....*....|....*...
gi 310923326 152 SYNMFENGSFLRRRRRFK 169
Cdd:cd20043   93 CGDMFENGSFLRRRKRFK 110

Forkhead (FH) domain found in the Forkhead box protein D (FOXD) subfamily; The FOXD subfamily includes four winged helix transcription factors, FOXD1-4. FOXD1, also called Forkhead-related protein FKHL8 or Forkhead-related transcription factor 4 (FREAC-4), is involved in transcriptional activation of Placental Growth Factor (PGF) and the complement component (C3) genes. It plays an important role in early embryonic development and organogenesis, and functions as an oncogene in several cancers. FOXD2, also called Forkhead-related protein FKHL17 or Forkhead-related transcription factor 9 (FREAC-9), is a probable transcription factor involved in embryogenesis and somatogenesis. FOXD3, also called HNF3/FH transcription factor genesis, acts as a transcriptional repressor that binds to the consensus sequence 5'-A[AT]T[AG]TTTGTTT-3'. It also acts as a transcriptional activator. It promotes development of neural crest cells from neural tube progenitors and restricts neural progenitor cells to the neural crest lineage while suppressing interneuron differentiation. FOXD3 is required for maintenance of pluripotent cells in the pre-implantation and peri-implantation stages of embryogenesis. FOXD4, also called Forkhead-related protein FKHL9 or Forkhead-related transcription factor 5 (FREAC-5), is essential for establishing neural cell fate and for neuronal differentiation. The family also includes Forkhead box protein D4-like proteins, FOXD4L1-6. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLD 149
Cdd:cd20018    1 KPPYSYIALITMAILQSPQKKLTLSGICEFIMNRFPYYREKFPAWQNSIRHNLSLNDCFVKIPREPGNPGKGNYWTLD 78

Forkhead (FH) domain found in Forkhead box protein B1 (FOXB1) and similar proteins; FOXB1, also called transcription factor FKH-5, is a winged helix transcription factor that controls development of mammary glands and regions of the central nervous system (CNS) that regulate the milk-ejection reflex. It is essential for access of mammillothalamic axons to the thalamus. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20042    6 KPPYSYISLTAMAIQSSPEKMLPLSEIYKFIMDRFPYYRENTQRWQNSLRHNLSFNDCFIKIPRRPDQPGKGSFWALHPS 85

                 ....*..
gi 310923326 152 SYNMFEN 158
Cdd:cd20042   86 CGDMFEN 92

Forkhead (FH) domain found in Forkhead box protein Q1 (FOXQ1) and similar proteins; FOXQ1, also called HNF-3/Forkhead-like protein 1 (HFH-1), or hepatocyte nuclear factor 3 Forkhead homolog 1, plays a role in hair follicle differentiation. It has also been reported to promote epithelial differentiation, inhibit smooth muscle differentiation, activate T cells and autoimmunity, and control mucin gene expression and granule content in stomach surface mucous cells. FOXQ1 is significantly associated with the pathogenesis of various tumor types including gastric, breast, colorectal, pancreatic, bladder and ovarian cancer, and glioma. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKP-GKGSYWTLD 149
Cdd:cd20034    1 KPPYSYIALIAMAIRDSPSGRLTLAEINEYLMKKFPFFRGSYTGWRNSVRHNLSLNDCFVKVLRDPSRPwGKDNYWTIN 79

Forkhead (FH) domain found in the Forkhead box protein K (FOXK) subfamily; The FOXK subfamily includes two winged helix transcription factors, FOXK1 and FOXK2. FOXK1, also called myocyte nuclear factor (MNF), acts as a transcriptional regulator that binds to the upstream enhancer region (CCAC box) of myoglobin genes. It positively regulates Wnt/beta-catenin signaling by translocating dishevelled (DVL) proteins into the nucleus. It also reduces virus replication, probably by binding the interferon stimulated response element (ISRE) to promote antiviral gene expression. In addition, FOXK1 plays important roles in multiple human cancers. FOXK2, also called cellular transcription factor ILF-1 or interleukin enhancer-binding factor 1, is a transcriptional regulator that recognizes the core sequence 5'-TAAACA-3'. It binds to NFAT-like motifs (purine-rich) in the IL2 promoter. It also binds to the HIV-1 long terminal repeat. FOXK2 may be involved in both, positive and negative regulation of important viral and cellular promoter elements. In addition, FOXK2 plays a critical role in suppressing tumorigenesis. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLD 149
Cdd:cd20026    1 KPPYSYAQLIVQAISSAPDKQLTLSGIYAYITKNYPYYRTADKGWQNSIRHNLSLNRYFIKVPRSQEEPGKGSFWRID 78

Forkhead (FH) domain found in the Forkhead box protein H (FOXH) subfamily; The FOXH subfamily includes a winged helix transcription factor, FOXH1, which is also called Forkhead activin signal transducer 1 (Fast-1), or Forkhead activin signal transducer 2 (Fast-2). FOXH1 acts as a transcriptional activator that recognizes and binds to the DNA sequence 5'-TGT[GT][GT]ATT-3'. It is required for induction of the goosecoid (GSC) promoter by TGF-beta or activin signaling. FOXH1 forms a transcriptionally active complex containing FOXH1/SMAD2/SMAD4 on a site on the GSC promoter called TARE (TGF-beta/activin response element). The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKP-GKGSYWTLD 149
Cdd:cd20022    1 KPPYSYLAMIALAIQNSPEKRLTLSEIIKALSTMFPFFKGEYKGWKDSVRHNLSSNDCFVKVLKDPGKPqAKGNYWTVD 79

Forkhead (FH) domain found in Forkhead box protein K2 (FOXK2) and similar proteins; FOXK2, also called cellular transcription factor ILF-1 or interleukin enhancer-binding factor 1, is a transcriptional regulator that recognizes the core sequence 5'-TAAACA-3'. It binds to NFAT-like motifs (purine-rich) in the IL2 promoter. It also binds to the HIV-1 long terminal repeat. FOXK2 may be involved in both, positive and negative regulation of important viral and cellular promoter elements. In addition, FOXK2 plays a critical role in suppressing tumorigenesis. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPGKGSYWTLDPD 151
Cdd:cd20055    3 KPPYSYAQLIVQAITMAPDKQLTLNGIYTHITKNYPYYRTADKGWQNSIRHNLSLNRYFIKVPRSQEEPGKGSFWRIDPA 82

                         90
                 ....*....|
gi 310923326 152 SYNMFENGSF 161
Cdd:cd20055   83 SESKLIEQAF 92

Forkhead (FH) domain found in the Forkhead box protein M (FOXM) subfamily; The FOXM subfamily includes a winged helix transcription factor, FOXM1, which is also called Forkhead-related protein FKHL16, Hepatocyte nuclear factor 3 Forkhead homolog 11 (HFH-11), HNF-3/fork-head homolog 11, M-phase phosphoprotein 2, MPM-2 reactive phosphoprotein 2, transcription factor Trident, or Winged-helix factor from INS-1 cells. FOXM1 acts as a transcriptional factor regulating the expression of cell cycle genes essential for DNA replication and mitosis. It plays a role in the control of cell proliferation. It is also involved in DNA break repair, participating in the DNA damage checkpoint response. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYREN-KQGWQNSIRHNLSLNECFVkvpRDDKKPGKGSYWTLDP 150
Cdd:cd20029    1 RPPYSYMALIQFAINSTEDKRMTLKEIYTWIEDHFPYFKHTaKPGWKNSIRHNLSLHDIFV---RETSANGKGSFWTLRP 77

Forkhead (FH) domain found in Forkhead box protein N3 (FOXN3); FOXN3, also called checkpoint suppressor 1 (CHES1), acts as a transcriptional repressor that may be involved in DNA damage-inducible cell cycle arrests (checkpoints). It displays transcriptional inhibitory activity, and is involved in cell cycle regulation and tumorigenesis. Alterations in FOXN3 are found in of a variety of cancers including melanoma, osteosarcoma, and hepatocellular carcinoma. FOXN3 also regulates hepatic glucose utilization/metabolism by regulating gluconeogenic substrate selection. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKP-GKGSYWTLDP 150
Cdd:cd20059    1 KPPYSFSCLIFMAIEDSPTKRLPVKDIYNWILEHFPYFANAPTGWKNSVRHNLSLNKCFKKVDKEKGQSiGKGSLWCIDP 80

                 .
gi 310923326 151 D 151
Cdd:cd20059   81 E 81

Forkhead (FH) domain found in Forkhead box protein N1 (FOXN1) and similar proteins; The FOXN1-like group includes two FOXN subfamily winged helix transcription factors, FOXN1 and FOXN4. FOXN1, also called winged helix transcription factor nude, acts as a transcriptional regulator which regulates the development, differentiation, and function of thymic epithelial cells (TECs), both in the prenatal and postnatal thymus. FOXN4 acts as a transcription factor essential for neural and some non-neural tissue development, such as retina and lung, respectively. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKV--PRDDKKPGKGSYWTLD 149
Cdd:cd20030    1 KPAYSYSCLIAMALKNSRTGCLPVSEIYSFMCENFPYFKTAPDGWKNSVRHNLSLNKCFEKIerPDGNGSSRKGCLWALN 80

                 .
gi 310923326 150 P 150
Cdd:cd20030   81 P 81

Forkhead (FH) domain found in the Forkhead box protein O (FOXO) subfamily; The FOXO subfamily includes several winged helix transcription factors: FOXO1, FOXO3, FOXO4 and FOXO6. FOXO transcription factors are involved in the regulation of longevity phenomenon via insulin and insulin-like growth factor signaling. All FOXOs bind to the consensus sequence 5'-GTAAACAA-3', known as the DAF-16 family member-binding element, which includes the core sequence 5'-(A/C)AA(C/T)A-3' recognized by all FOX family members. FOXO1, also called Forkhead box protein O1A or Forkhead in rhabdomyosarcoma (FKHR), is a transcription factor that is the main target of insulin signaling and regulates metabolic homeostasis in response to oxidative stress. FOXO3, also called AF6q21 protein or Forkhead in rhabdomyosarcoma-like 1 (FKHRL1), is a transcriptional activator which triggers apoptosis in the absence of survival factors, including neuronal cell death upon oxidative stress. It recognizes and binds to the DNA sequence 5'-[AG]TAAA[TC]A-3'. FOXO4, also called Fork head domain transcription factor AFX1, is a transcription factor involved in the regulation of the insulin signaling pathway. It binds to insulin-response elements (IREs) and can activate transcription of IGFBP1. FOXO6 acts as a transcriptional activator that may play an important role on tumor invasion, metastasis, and prognosis. The FH domain is a winged helix DNA-binding domain.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 310923326  76 SYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQ-----GWQNSIRHNLSLNECFVKVPrdDKKPGKGSYWTLD 149
Cdd:cd20032    4 SYADLITKAIESSPDKRLTLQQIYDWMVRNVPYFKDKGDsnssaGWKNSIRHNLSLHSRFVRVQ--NEGTGKSSWWTLN 80

Forkhead (FH) domain found in Forkhead box protein P3 (FOXP3) and similar proteins; FOXP3, also called Scurfin, is a transcriptional regulator which is crucial for the development and inhibitory function of regulatory T-cells (Treg), which are required for maintaining self-tolerance. It may also have intrinsic regulatory function in conventional T (Tconv) cells. A deletion of the Forkhead domain arising from a frame-shift mutation in mouse FOXP3 is linked to the autoimmune disorder scurfy, and a similar congenital disease in humans is known as IPEX (immune dysregulation, polyendocrinopathy, enteropathy, X-linked syndrome). The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDdkkpgKGSYWTLD 149
Cdd:cd20066    1 RPPFTYASLIRWAILESPEKQLTLNEIYHWFTRMFAFFRNNTATWKNAVRHNLSLHKCFVRVENE-----KGAVWTVD 73

Forkhead (FH) domain found in the Forkhead box protein R (FOXR) subfamily; The FOXR subfamily includes two winged helix transcription factors, FOXR1-2. FOXR1, also called Forkhead box protein N5 (FOXN5), is required for proper cell division and survival possibly via the p21 and mTOR pathways. FOXR2, also called Forkhead box protein N6 (FOXN6), is an important player in a wide range of cellular processes such as proliferation, migration, differentiation, and apoptosis. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVPRDDKKPG--KGSYWTLD 149
Cdd:cd20036    3 KPPLSYPNLIALALRNSETGSLNVQEIYDFIRFHFPFFRTAPDGWKNSVRHNLSFSDSFEKVPTSVSGYGgrRSCLWKLT 82

                 ..
gi 310923326 150 PD 151
Cdd:cd20036   83 PE 84

Forkhead (FH) domain found in Forkhead box protein O4 (FOXO4) and similar proteins; FOXO4, also called Fork head domain transcription factor AFX1, is a transcription factor involved in the regulation of the insulin signaling pathway. It binds to insulin-response elements (IREs) and can activate transcription of IGFBP1. The FH domain is a winged helix DNA-binding domain. All FOXOs bind to the consensus sequence 5'-GTAAACAA-3', known as the DAF-16 family member-binding element, which includes the core sequence 5'-(A/C)AA(C/T)A-3' recognized by all FOX family members.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  76 SYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRE-----NKQGWQNSIRHNLSLNECFVKVprDDKKPGKGSYWTLDP 150
Cdd:cd20062    8 SYAELISQAIESSPEKRLTLAQIYEWMVKSVPYFKDkgdsnSSAGWKNSIRHNLSLHSKFIKV--HNEATGKSSWWMLNP 85

                 .
gi 310923326 151 D 151
Cdd:cd20062   86 E 86

Forkhead (FH) domain found in Forkhead box protein O3 (FOXO3); FOXO3, also called AF6q21 protein or Forkhead in rhabdomyosarcoma-like 1 (FKHRL1), is a transcriptional activator which triggers apoptosis in the absence of survival factors, including neuronal cell death upon oxidative stress. It recognizes and binds to the DNA sequence 5'-[AG]TAAA[TC]A-3'. The FH domain is a winged helix DNA-binding domain. All FOXOs bind to the consensus sequence 5'-GTAAACAA-3', known as the DAF-16 family member-binding element, which includes the core sequence 5'-(A/C)AA(C/T)A-3' recognized by all FOX family members.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  76 SYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRE-----NKQGWQNSIRHNLSLNECFVKVPRDDKkpGKGSYWTLDP 150
Cdd:cd20061    5 SYADLITRAIESSPDKRLTLSQIYDWMVRCVPYFKDkgdsnSSAGWKNSIRHNLSLHSRFIRVQNEGT--GKSSWWMINP 82

                 .
gi 310923326 151 D 151
Cdd:cd20061   83 D 83

Forkhead (FH) domain found in Forkhead box protein O6 (FOXO6) and similar proteins; FOXO6 acts as a transcriptional activator that may play an important role on tumor invasion, metastasis and prognosis. The FH domain is a winged helix DNA-binding domain. All FOXOs bind to the consensus sequence 5'-GTAAACAA-3', known as the DAF-16 family member-binding element, which includes the core sequence 5'-(A/C)AA(C/T)A-3' recognized by all FOX family members.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  76 SYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRE-----NKQGWQNSIRHNLSLNECFVKVprDDKKPGKGSYWTLDP 150
Cdd:cd20063    4 SYADLITKAIESSPDKRLTLSQIYDWMVRYVPYFKDkgdsnSSAGWKNSIRHNLSLHTRFIRV--QNEGTGKSSWWMLNP 81

                 .
gi 310923326 151 D 151
Cdd:cd20063   82 E 82

Forkhead (FH) domain found in Forkhead box protein N1 (FOXN1); FOXN1, also called winged helix transcription factor nude, acts as a transcriptional regulator which regulates the development, differentiation, and function of thymic epithelial cells (TECs), both in the prenatal and postnatal thymus. It is also an important factor in controlling the skin wound healing process, as it actively participates in re-epithelialization and is responsible for scar formation. The FH domain is a winged helix DNA-binding domain. FOX transcription factors recognize the core sequence 5'-(A/C)AA(C/T)A-3'.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 310923326  72 KPPYSYIALITMAIQNAPEKKITLNGIYQFIMDRFPFYRENKQGWQNSIRHNLSLNECFVKVP-RDDKKPGKGSYWTLDP 150
Cdd:cd20056    2 KPIYSYSILIFMALKNSKTGSLPVSEIYNFMTEHFPYFKTAPDGWKNSVRHNLSLNKCFEKVEnKSGSSSRKGCLWALNP 81