transcription factor Sp2 isoform X6 [Homo sapiens]
Protein Classification
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||||||
| SP2_N | cd22540 | N-terminal domain of transcription factor Specificity Protein (SP) 2; Specificity Proteins ... |
2-519 | 0e+00 | ||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 2; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. SP2 contains the least conserved DNA-binding domain within the SP subfamily of proteins, and its DNA sequence specificity differs from the other SP proteins. It localizes primarily within subnuclear foci associated with the nuclear matrix, and can activate, or in some cases, repress expression from different promoters. The transcription factor SP2 serves as a paradigm for indirect genomic binding. It does not require its DNA-binding domain for genomic DNA binding and occupies target promoters independently of whether they contain a cognate DNA-binding motif. SP2 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP2. : Pssm-ID: 411776 [Multi-domain] Cd Length: 511 Bit Score: 616.17 E-value: 0e+00
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| zf-H2C2_2 | pfam13465 | Zinc-finger double domain; |
564-587 | 8.64e-07 | ||||||||
Zinc-finger double domain; : Pssm-ID: 463886 [Multi-domain] Cd Length: 26 Bit Score: 45.44 E-value: 8.64e-07
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| zf-H2C2_2 | pfam13465 | Zinc-finger double domain; |
535-561 | 1.95e-05 | ||||||||
Zinc-finger double domain; : Pssm-ID: 463886 [Multi-domain] Cd Length: 26 Bit Score: 41.59 E-value: 1.95e-05
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| zf-C2H2 | pfam00096 | Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two ... |
578-600 | 5.88e-05 | ||||||||
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. : Pssm-ID: 395048 [Multi-domain] Cd Length: 23 Bit Score: 40.36 E-value: 5.88e-05
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| Name | Accession | Description | Interval | E-value | ||||||||
| SP2_N | cd22540 | N-terminal domain of transcription factor Specificity Protein (SP) 2; Specificity Proteins ... |
2-519 | 0e+00 | ||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 2; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. SP2 contains the least conserved DNA-binding domain within the SP subfamily of proteins, and its DNA sequence specificity differs from the other SP proteins. It localizes primarily within subnuclear foci associated with the nuclear matrix, and can activate, or in some cases, repress expression from different promoters. The transcription factor SP2 serves as a paradigm for indirect genomic binding. It does not require its DNA-binding domain for genomic DNA binding and occupies target promoters independently of whether they contain a cognate DNA-binding motif. SP2 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP2. Pssm-ID: 411776 [Multi-domain] Cd Length: 511 Bit Score: 616.17 E-value: 0e+00
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| zf-H2C2_2 | pfam13465 | Zinc-finger double domain; |
564-587 | 8.64e-07 | ||||||||
Zinc-finger double domain; Pssm-ID: 463886 [Multi-domain] Cd Length: 26 Bit Score: 45.44 E-value: 8.64e-07
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| zf-H2C2_2 | pfam13465 | Zinc-finger double domain; |
535-561 | 1.95e-05 | ||||||||
Zinc-finger double domain; Pssm-ID: 463886 [Multi-domain] Cd Length: 26 Bit Score: 41.59 E-value: 1.95e-05
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| zf-C2H2 | pfam00096 | Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two ... |
578-600 | 5.88e-05 | ||||||||
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. Pssm-ID: 395048 [Multi-domain] Cd Length: 23 Bit Score: 40.36 E-value: 5.88e-05
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| COG5048 | COG5048 | FOG: Zn-finger [General function prediction only]; |
442-580 | 1.16e-03 | ||||||||
FOG: Zn-finger [General function prediction only]; Pssm-ID: 227381 [Multi-domain] Cd Length: 467 Bit Score: 41.99 E-value: 1.16e-03
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| ZnF_C2H2 | smart00355 | zinc finger; |
578-600 | 2.40e-03 | ||||||||
zinc finger; Pssm-ID: 197676 Cd Length: 23 Bit Score: 35.90 E-value: 2.40e-03
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| ZnF_C2H2 | smart00355 | zinc finger; |
548-572 | 2.47e-03 | ||||||||
zinc finger; Pssm-ID: 197676 Cd Length: 23 Bit Score: 35.52 E-value: 2.47e-03
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| zf-C2H2_8 | pfam15909 | C2H2-type zinc ribbon; This family carries three zinc-fingers in tandem. |
520-596 | 8.76e-03 | ||||||||
C2H2-type zinc ribbon; This family carries three zinc-fingers in tandem. Pssm-ID: 464935 [Multi-domain] Cd Length: 98 Bit Score: 36.24 E-value: 8.76e-03
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| Name | Accession | Description | Interval | E-value | ||||||||||
| SP2_N | cd22540 | N-terminal domain of transcription factor Specificity Protein (SP) 2; Specificity Proteins ... |
2-519 | 0e+00 | ||||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 2; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. SP2 contains the least conserved DNA-binding domain within the SP subfamily of proteins, and its DNA sequence specificity differs from the other SP proteins. It localizes primarily within subnuclear foci associated with the nuclear matrix, and can activate, or in some cases, repress expression from different promoters. The transcription factor SP2 serves as a paradigm for indirect genomic binding. It does not require its DNA-binding domain for genomic DNA binding and occupies target promoters independently of whether they contain a cognate DNA-binding motif. SP2 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP2. Pssm-ID: 411776 [Multi-domain] Cd Length: 511 Bit Score: 616.17 E-value: 0e+00
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| SP4_N | cd22536 | N-terminal domain of transcription factor Specificity Protein (SP) 4; Specificity Proteins ... |
12-517 | 3.72e-36 | ||||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 4; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. Human SP4 is a risk gene of multiple psychiatric disorders including schizophrenia, bipolar disorder, and major depression. SP4 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP4. Pssm-ID: 411773 [Multi-domain] Cd Length: 623 Bit Score: 144.29 E-value: 3.72e-36
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| SP1_N | cd22539 | N-terminal domain of transcription factor Specificity Protein (SP) 1; Specificity Proteins ... |
17-522 | 3.52e-23 | ||||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 1; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. SP1 has been shown to interact with a variety of proteins including myogenin, SMAD3, SUMO1, SF1, TAL1, and UBC. Some 12,000 SP1 binding sites are found in the human genome. SP1 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLF bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP1. Pssm-ID: 411775 Cd Length: 433 Bit Score: 102.67 E-value: 3.52e-23
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| SP3_N | cd22537 | N-terminal domain of transcription factor Specificity Protein (SP) 3; Specificity Proteins ... |
17-517 | 1.34e-21 | ||||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 3; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. SP1 and SP3 can interact with and recruit a large number of proteins including the transcription initiation complex, histone modifying enzymes, and chromatin remodeling complexes, which strongly suggest that SP1 and SP3 are important transcription factors in remodeling chromatin and the regulation of gene expression. SP3 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP3. Pssm-ID: 411774 [Multi-domain] Cd Length: 574 Bit Score: 99.25 E-value: 1.34e-21
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| SP1-4_N | cd22545 | N-terminal domain of transcription factor Specificity Proteins (SP) 1-4; Specificity Proteins ... |
474-522 | 1.87e-13 | ||||||||||
N-terminal domain of transcription factor Specificity Proteins (SP) 1-4; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. There are many SPs in vertebrates (9 SPs in humans and mice, 7 SPs in chicken, and 11 SPs in teleost fish), but arthropods only have 3 SPs. SPs belong to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP1-4. Pssm-ID: 411777 [Multi-domain] Cd Length: 82 Bit Score: 65.93 E-value: 1.87e-13
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| SP1-4_N | cd22545 | N-terminal domain of transcription factor Specificity Proteins (SP) 1-4; Specificity Proteins ... |
17-44 | 2.43e-10 | ||||||||||
N-terminal domain of transcription factor Specificity Proteins (SP) 1-4; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. There are many SPs in vertebrates (9 SPs in humans and mice, 7 SPs in chicken, and 11 SPs in teleost fish), but arthropods only have 3 SPs. SPs belong to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. SP factors may be separated into three groups based on their domain architecture and the similarity of their N-terminal transactivation domains: SP1-4, SP5, and SP6-9. The transactivation domains between the three groups are not homologous to one another. SP1-4 have similar N-terminal transactivation domains characterized by glutamine-rich regions, which, in most cases, have adjacent serine/threonine-rich regions. This model represents the N-terminal domain of SP1-4. Pssm-ID: 411777 [Multi-domain] Cd Length: 82 Bit Score: 57.07 E-value: 2.43e-10
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| zf-H2C2_2 | pfam13465 | Zinc-finger double domain; |
564-587 | 8.64e-07 | ||||||||||
Zinc-finger double domain; Pssm-ID: 463886 [Multi-domain] Cd Length: 26 Bit Score: 45.44 E-value: 8.64e-07
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| zf-H2C2_2 | pfam13465 | Zinc-finger double domain; |
535-561 | 1.95e-05 | ||||||||||
Zinc-finger double domain; Pssm-ID: 463886 [Multi-domain] Cd Length: 26 Bit Score: 41.59 E-value: 1.95e-05
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| zf-C2H2 | pfam00096 | Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two ... |
578-600 | 5.88e-05 | ||||||||||
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. Pssm-ID: 395048 [Multi-domain] Cd Length: 23 Bit Score: 40.36 E-value: 5.88e-05
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| zf-C2H2 | pfam00096 | Zinc finger, C2H2 type; The C2H2 zinc finger is the classical zinc finger domain. The two ... |
548-572 | 7.74e-05 | ||||||||||
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. Pssm-ID: 395048 [Multi-domain] Cd Length: 23 Bit Score: 39.98 E-value: 7.74e-05
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| SP1-4_arthropods_N | cd22553 | N-terminal domain of transcription factor Specificity Protein (SP) 1-4 from arthropods; ... |
449-519 | 2.55e-04 | ||||||||||
N-terminal domain of transcription factor Specificity Protein (SP) 1-4 from arthropods; Specificity Proteins (SPs) are transcription factors that are involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. There are many SPs in vertebrates (9 SPs in humans and mice, 7 SPs in the chicken, and 11 SPs in teleost fish), but arthropods only have 3 SPs. One SP is clade SP1-4, which is expressed ubiquitously throughout development. SP1-4 belongs to a family of proteins, called the SP/Kruppel or Krueppel-like Factor (KLF) family, characterized by a C-terminal DNA-binding domain of 81 amino acids consisting of three Kruppel-like C2H2 zinc fingers. These factors bind to a loose consensus motif, namely NNRCRCCYY (where N is any nucleotide; R is A/G, and Y is C/T), such as the recurring motifs in GC and GT boxes (5'-GGGGCGGGG-3' and 5-GGTGTGGGG-3') that are present in promoters and more distal regulatory elements of mammalian genes. SP factors preferentially bind GC boxes, while KLFs bind CACCC boxes. Another characteristic hallmark of SP factors is the presence of the Buttonhead (BTD) box CXCPXC, just N-terminal to the zinc fingers. The function of the BTD box is unknown, but it is thought to play an important physiological role. Another feature of most SP factors is the presence of a conserved amino acid stretch, the so-called SP box, located close to the N-terminus. This model represents the N-terminal domain of SP1-4 from arthropods. Pssm-ID: 411778 [Multi-domain] Cd Length: 384 Bit Score: 43.86 E-value: 2.55e-04
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| COG5048 | COG5048 | FOG: Zn-finger [General function prediction only]; |
442-580 | 1.16e-03 | ||||||||||
FOG: Zn-finger [General function prediction only]; Pssm-ID: 227381 [Multi-domain] Cd Length: 467 Bit Score: 41.99 E-value: 1.16e-03
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| ZnF_C2H2 | smart00355 | zinc finger; |
578-600 | 2.40e-03 | ||||||||||
zinc finger; Pssm-ID: 197676 Cd Length: 23 Bit Score: 35.90 E-value: 2.40e-03
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| ZnF_C2H2 | smart00355 | zinc finger; |
548-572 | 2.47e-03 | ||||||||||
zinc finger; Pssm-ID: 197676 Cd Length: 23 Bit Score: 35.52 E-value: 2.47e-03
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| zf-C2H2_8 | pfam15909 | C2H2-type zinc ribbon; This family carries three zinc-fingers in tandem. |
520-596 | 8.76e-03 | ||||||||||
C2H2-type zinc ribbon; This family carries three zinc-fingers in tandem. Pssm-ID: 464935 [Multi-domain] Cd Length: 98 Bit Score: 36.24 E-value: 8.76e-03
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| zf-C2H2_4 | pfam13894 | C2H2-type zinc finger; This family contains a number of divergent C2H2 type zinc fingers. |
548-572 | 9.00e-03 | ||||||||||
C2H2-type zinc finger; This family contains a number of divergent C2H2 type zinc fingers. Pssm-ID: 464025 Cd Length: 24 Bit Score: 34.16 E-value: 9.00e-03
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| zf-C2H2_4 | pfam13894 | C2H2-type zinc finger; This family contains a number of divergent C2H2 type zinc fingers. |
578-600 | 9.00e-03 | ||||||||||
C2H2-type zinc finger; This family contains a number of divergent C2H2 type zinc fingers. Pssm-ID: 464025 Cd Length: 24 Bit Score: 34.16 E-value: 9.00e-03
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| Blast search parameters | ||||
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