Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, and numbers in brackets indicate the number of residues. The positions marked # are those that are important for the stable fold of the zinc finger. The final position can be either his or cys. The C2H2 zinc finger is composed of two short beta strands followed by an alpha helix. The amino terminal part of the helix binds the major groove in DNA binding zinc fingers. The accepted consensus binding sequence for Sp1 is usually defined by the asymmetric hexanucleotide core GGGCGG but this sequence does not include, among others, the GAG (=CTC) repeat that constitutes a high-affinity site for Sp1 binding to the wt1 promoter.

                          10        20
                  ....*....|....*....|..
gi 1958783410 786 TCEYCGKVFKNCSNLTVHRRSH 807
Cdd:pfam00096   2 KCPDCGKSFSRKSNLKRHLRTH 23

Zinc-finger double domain;

                          10        20
                  ....*....|....*....|....*.
gi 1958783410 439 NLIVHRRSHTGEKPYKCQLCDHACSQ 464
Cdd:pfam13465   1 NLKRHMRTHTGEKPYKCPECGKSFKS 26

Kinetoplastid RNA Editing Protein A (KREPA); The KREPA 1-6 (TbMP81, 63, 42, 24, 19, and 18, respectively) proteins are components of the RNA editing complex of parasitic protozoans such as Trypanosoma and Leishmania species. These parasites have a uniquely organized mitochondrial genome, the kinetoplast. Most kinetoplast-transcribed mRNAs are cryptic and encode multiple subunits for the electron transport chain following maturation through a uridine insertion/deletion process called RNA editing. KREPAs participate in the site-specific insertion and deletion of U nucleotides in the kinetoplastid mitochondria pre-messenger RNA. The editosome, a high molecular mass enzyme complex, carries out the reaction with the help of critical enzymes and structural proteins. Five related editosome proteins KREPA1 (TbMP81), KREPA2 (TbMP63), KREPA3 (TbMP42), KREPA4 (TbMP24), KREPA5 (TbMP19), and KREPA6 (TbMP18) play critical roles in the structure and auxiliary functions of the editing process without any predicted catalytic function. The KREPA1, KREPA2, and KREPA3 proteins contain C2H2 zinc finger motifs and KREPA4 and KREPA6, contain RNA-binding domains but all have a conserved C-terminal sequences that resemble an oligonucleotide-binding (OB)-fold domain. Thus, this group of five proteins is likely to be involved in protein-protein and/or protein-RNA interactions. RNA editing is crucial for the parasite's survival in both its bloodstream and procyclic form life cycle stages which allows the parasite to adapt to its environment and maintain its viability.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1958783410 145 PAQLPSMAPIAASSSHPPTSVITSPLRALGVLPPCFPLPCCGARPISGDGTQGEGQMEAPFGCQCELSGKDEPSSYICTT 224
Cdd:cd23959   171 AAQQSSASPGEVASPFASGTVSASPFATATDTAPSSGAPDGFPAEASAPSPFAAPASAASFPAAPVANGEAATPTHACTI 250

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|...
gi 1958783410 225 CKQPFNSAWFLLQHAQNTHGfriyLEPGPAST-SLTPRLTIPP 266
Cdd:cd23959   251 CGKAFSTHEGLRMHSKAKHG----VELEKAKTaKRKKRRSVPD 289

Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, and numbers in brackets indicate the number of residues. The positions marked # are those that are important for the stable fold of the zinc finger. The final position can be either his or cys. The C2H2 zinc finger is composed of two short beta strands followed by an alpha helix. The amino terminal part of the helix binds the major groove in DNA binding zinc fingers. The accepted consensus binding sequence for Sp1 is usually defined by the asymmetric hexanucleotide core GGGCGG but this sequence does not include, among others, the GAG (=CTC) repeat that constitutes a high-affinity site for Sp1 binding to the wt1 promoter.

                          10        20
                  ....*....|....*....|..
gi 1958783410 786 TCEYCGKVFKNCSNLTVHRRSH 807
Cdd:pfam00096   2 KCPDCGKSFSRKSNLKRHLRTH 23

Zinc-finger double domain;

                          10        20
                  ....*....|....*....|....*.
gi 1958783410 439 NLIVHRRSHTGEKPYKCQLCDHACSQ 464
Cdd:pfam13465   1 NLKRHMRTHTGEKPYKCPECGKSFKS 26

N-terminal domain of Oryza sativa transcription factor SUPPRESSOR OF FRI 4 (OsSUF4), Arabidopsis thaliana SUF4 (AtSUF4), and similar proteins; Oryza sativa SUPPRESSOR OF FRI 4 (OsSUF4) is a C2H2-type zinc finger transcription factor which interacts with the major H3K36 methyltransferase SDG725 to promote H3K36me3 (tri-methylation at H3K9) establishment. The transcription factor OsSUF4 recognizes a specific 7-bp DNA element (5'-CGGAAAT-3'), which is contained in the promoter regions of many genes throughout the rice genome. Through interaction with OsSUF4, SDG725 is recruited to the promoters of key florigen genes, RICE FLOWERING LOCUS T1 (RFT1) and Heading date 3a (Hd3a), for H3K36 deposition to promote gene activation and rice plant flowering. OsSUF4 target genes include a number of genes involved in many biological processes. Flowering plant Arabidopsis SUF4 binds to a 15bp DNA element (5'-CCAAATTTTAAGTTT-3') within the promoter of the floral repressor gene FLOWERING LOCUS C (FLC) and recruits the FRI-C transcription activator complex to the FLC promoter. Although the DNA-binding element and target genes of AtSUF4 are different from those of OsSUF4, AtSUF4 is known to interact with the Arabidopsis H3K36 methyltransferase SDG8 (also known as ASHH2/EFS/SET8), and the methylation deposition mechanism mediated by the SUF4 transcription factor and H3K36 methyltransferase may be conserved in Arabidopsis and rice. Proteins in this family have two conserved C2H2-type zinc finger motifs at the N-terminus (included in this model), and a large proline-rich domain at the C-terminus; for OsSUF4, it has been shown that the N-terminal zinc-finger domain is responsible for DNA binding, and that the C-terminal domain interacts with SDG725.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1958783410 427 CEFCGKTFKFQSNLIVHRRSHTgekpYKCQLCDHACSQASKLKRHMKThMHK------AGSLAGRSD 487
Cdd:cd20908     4 CYYCDREFDDEKILIQHQKAKH----FKCHICHKKLYTAGGLAVHCLQ-VHKetltkvPNALPGRDD 65

zinc finger;

                           10        20
                   ....*....|....*....|...
gi 1958783410  813 YKCELCNYACAQSSKLTRHMKTH 835
Cdd:smart00355   1 YRCPECGKVFKSKSALREHMRTH 23

Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, and numbers in brackets indicate the number of residues. The positions marked # are those that are important for the stable fold of the zinc finger. The final position can be either his or cys. The C2H2 zinc finger is composed of two short beta strands followed by an alpha helix. The amino terminal part of the helix binds the major groove in DNA binding zinc fingers. The accepted consensus binding sequence for Sp1 is usually defined by the asymmetric hexanucleotide core GGGCGG but this sequence does not include, among others, the GAG (=CTC) repeat that constitutes a high-affinity site for Sp1 binding to the wt1 promoter.

                          10        20
                  ....*....|....*....|..
gi 1958783410 786 TCEYCGKVFKNCSNLTVHRRSH 807
Cdd:pfam00096   2 KCPDCGKSFSRKSNLKRHLRTH 23

Zinc-finger double domain;

                          10        20
                  ....*....|....*....|....*.
gi 1958783410 439 NLIVHRRSHTGEKPYKCQLCDHACSQ 464
Cdd:pfam13465   1 NLKRHMRTHTGEKPYKCPECGKSFKS 26

Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, and numbers in brackets indicate the number of residues. The positions marked # are those that are important for the stable fold of the zinc finger. The final position can be either his or cys. The C2H2 zinc finger is composed of two short beta strands followed by an alpha helix. The amino terminal part of the helix binds the major groove in DNA binding zinc fingers. The accepted consensus binding sequence for Sp1 is usually defined by the asymmetric hexanucleotide core GGGCGG but this sequence does not include, among others, the GAG (=CTC) repeat that constitutes a high-affinity site for Sp1 binding to the wt1 promoter.

                          10        20
                  ....*....|....*....|..
gi 1958783410 426 SCEFCGKTFKFQSNLIVHRRSH 447
Cdd:pfam00096   2 KCPDCGKSFSRKSNLKRHLRTH 23

Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two conserved cysteines and histidines co-ordinate a zinc ion. The following pattern describes the zinc finger. #-X-C-X(1-5)-C-X3-#-X5-#-X2-H-X(3-6)-[H/C] Where X can be any amino acid, and numbers in brackets indicate the number of residues. The positions marked # are those that are important for the stable fold of the zinc finger. The final position can be either his or cys. The C2H2 zinc finger is composed of two short beta strands followed by an alpha helix. The amino terminal part of the helix binds the major groove in DNA binding zinc fingers. The accepted consensus binding sequence for Sp1 is usually defined by the asymmetric hexanucleotide core GGGCGG but this sequence does not include, among others, the GAG (=CTC) repeat that constitutes a high-affinity site for Sp1 binding to the wt1 promoter.

                          10        20
                  ....*....|....*....|...
gi 1958783410 813 YKCELCNYACAQSSKLTRHMKTH 835
Cdd:pfam00096   1 YKCPDCGKSFSRKSNLKRHLRTH 23

Kinetoplastid RNA Editing Protein A2 (KREPA2); The KREPA2 (TbMP63) protein is a component of the parasitic protozoan's KREPA RNA editing catalytic complex (RECC). Kinetoplastid RNA editing (KRE) proteins occur as pairs or sets of related proteins in multiple complexes. KREPA complex is composed of six components (KREPA1-6), which share a conserved C-terminal region containing an oligonucleotide-binding (OB)-fold-like domain. KREPAs are responsible for the site-specific insertion and deletion of U nucleotides in the kinetoplastid mitochondria pre-messenger RNA. Apart from the conserved C-terminal OB-fold domain, KREPA1, KREPA2, and KREPA3 contain two conserved C2H2 zinc-finger domains. KREPA2 and kinetoplastid RNA editing ligase 1 (KREL1) are specific for ligation post-U-deletion and are paralogous to KREL2 and KREPA1 that are specific for ligation post-U-insertion. KREPA2, is critical for RECC stability and KREL1 integration into the complex.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1958783410 145 PAQLPSMAPIAASSSHPPTSVITSPLRALGVLPPCFPLPCCGARPISGDGTQGEGQMEAPFGCQCELSGKDEPSSYICTT 224
Cdd:cd23959   171 AAQQSSASPGEVASPFASGTVSASPFATATDTAPSSGAPDGFPAEASAPSPFAAPASAASFPAAPVANGEAATPTHACTI 250

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|...
gi 1958783410 225 CKQPFNSAWFLLQHAQNTHGfriyLEPGPAST-SLTPRLTIPP 266
Cdd:cd23959   251 CGKAFSTHEGLRMHSKAKHG----VELEKAKTaKRKKRRSVPD 289

C2H2-type zinc-finger domain;

                          10        20
                  ....*....|....*....|...
gi 1958783410 453 YKCQLCDHACSQASKLKRHMKTH 475
Cdd:pfam13909   1 YKCSQCDYSTAWKSNLKRHLRKH 23