RPA1 (replication factor A protein 1) family protein is part of the heterotrimeric replication protein A complex (RPA/RP-A), binds and stabilizes single-stranded DNA intermediates, that form during DNA replication or upon DNA stress
replication factor-a protein 1 (rpa1); All proteins in this family for which functions are ...
3-595
0e+00
replication factor-a protein 1 (rpa1); All proteins in this family for which functions are known are part of a multiprotein complex made up of homologs of RPA1, RPA2 and RPA3 that bind ssDNA and function in the recognition of DNA damage for nucleotide excision repairThis family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
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Pssm-ID: 273177 [Multi-domain] Cd Length: 608 Bit Score: 876.75 E-value: 0e+00
replication factor-a protein 1 (rpa1); All proteins in this family for which functions are ...
3-595
0e+00
replication factor-a protein 1 (rpa1); All proteins in this family for which functions are known are part of a multiprotein complex made up of homologs of RPA1, RPA2 and RPA3 that bind ssDNA and function in the recognition of DNA damage for nucleotide excision repairThis family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 273177 [Multi-domain] Cd Length: 608 Bit Score: 876.75 E-value: 0e+00
Replication factor-A C terminal domain; This domain is found at the C terminal of replication ...
444-589
3.17e-73
Replication factor-A C terminal domain; This domain is found at the C terminal of replication factor A. Replication factor A (RPA) binds single-stranded DNA and is involved in replication, repair, and recombination of DNA.
Pssm-ID: 462546 [Multi-domain] Cd Length: 146 Bit Score: 230.96 E-value: 3.17e-73
RPA1_DBD_C: A subfamily of OB folds corresponding to the C-terminal OB fold, the ssDNA-binding ...
428-595
9.39e-62
RPA1_DBD_C: A subfamily of OB folds corresponding to the C-terminal OB fold, the ssDNA-binding domain (DBD)-C, of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). In addition to DBD-C, RPA1 contains three other OB folds: DBD-A, DBD-B, and RPA1N. The major DNA binding activity of RPA is associated with RPA1 DBD-A and DBD-B. RPA1 DBD-C is involved in DNA binding and trimerization. It contains two structural insertions not found to date in other OB-folds: a zinc ribbon and a three-helix bundle. RPA1 DBD-C also contains a Cys4-type zinc-binding motif, which plays a role in the ssDNA binding function of this domain. It appears that zinc itself may not be required for ssDNA binding.
Pssm-ID: 239922 [Multi-domain] Cd Length: 166 Bit Score: 201.77 E-value: 9.39e-62
replication factor-a protein 1 (rpa1); All proteins in this family for which functions are ...
3-595
0e+00
replication factor-a protein 1 (rpa1); All proteins in this family for which functions are known are part of a multiprotein complex made up of homologs of RPA1, RPA2 and RPA3 that bind ssDNA and function in the recognition of DNA damage for nucleotide excision repairThis family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 273177 [Multi-domain] Cd Length: 608 Bit Score: 876.75 E-value: 0e+00
Replication factor-A C terminal domain; This domain is found at the C terminal of replication ...
444-589
3.17e-73
Replication factor-A C terminal domain; This domain is found at the C terminal of replication factor A. Replication factor A (RPA) binds single-stranded DNA and is involved in replication, repair, and recombination of DNA.
Pssm-ID: 462546 [Multi-domain] Cd Length: 146 Bit Score: 230.96 E-value: 3.17e-73
RPA1_DBD_C: A subfamily of OB folds corresponding to the C-terminal OB fold, the ssDNA-binding ...
428-595
9.39e-62
RPA1_DBD_C: A subfamily of OB folds corresponding to the C-terminal OB fold, the ssDNA-binding domain (DBD)-C, of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). In addition to DBD-C, RPA1 contains three other OB folds: DBD-A, DBD-B, and RPA1N. The major DNA binding activity of RPA is associated with RPA1 DBD-A and DBD-B. RPA1 DBD-C is involved in DNA binding and trimerization. It contains two structural insertions not found to date in other OB-folds: a zinc ribbon and a three-helix bundle. RPA1 DBD-C also contains a Cys4-type zinc-binding motif, which plays a role in the ssDNA binding function of this domain. It appears that zinc itself may not be required for ssDNA binding.
Pssm-ID: 239922 [Multi-domain] Cd Length: 166 Bit Score: 201.77 E-value: 9.39e-62
RPA1_DBD_A: A subfamily of OB folds corresponding to the second OB fold, the ssDNA-binding ...
168-270
6.52e-54
RPA1_DBD_A: A subfamily of OB folds corresponding to the second OB fold, the ssDNA-binding domain (DBD)-A, of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). In addition to DBD-A, RPA1 contains three other OB folds: DBD-B, DBD-C, and RPA1N. The major DNA binding activity of human RPA (hRPA) and Saccharomyces cerevisiae RPA (ScRPA) is associated with DBD-A and DBD-B of RPA1. RPA1 DBD-C is involved in trimerization. The ssDNA-binding mechanism is believed to be multistep and to involve conformational change. Although ScRPA and the hRPA have similar ssDNA-binding properties, they differ functionally. Antibodies to hRPA do not cross-react with ScRPA, and null mutations in the ScRPA subunits are not complemented by corresponding human genes. Also, ScRPA cannot support Simian virus 40 (SV40) DNA replication in vitro, whereas human RPA can.
Pssm-ID: 239920 [Multi-domain] Cd Length: 104 Bit Score: 178.59 E-value: 6.52e-54
RPA1_DBD_B: A subfamily of OB folds corresponding to the third OB fold, the ssDNA-binding ...
301-401
9.32e-40
RPA1_DBD_B: A subfamily of OB folds corresponding to the third OB fold, the ssDNA-binding domain (DBD)-B, of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). In addition to DBD-B, RPA1 contains three other OB folds: DBD-A, DBD-C, and RPA1N. The major DNA binding activity of human RPA (hRPA) and Saccharomyces cerevisiae RPA (ScRPA) is associated with RPA1 DBD-A and DBD-B. RPA1 DBD-C is involved in trimerization. The ssDNA binding mechanism is believed to be multistep and to involve conformational change. Although ScRPA and the hRPA have similar ssDNA-binding properties, they differ functionally. Antibodies to hRPA do not cross-react with ScRPA, and null mutations in the ScRPA subunits are not complemented by corresponding human genes. Also, ScRPA cannot support Simian virus 40 (SV40) DNA replication in vitro, whereas human RPA can.
Pssm-ID: 239921 [Multi-domain] Cd Length: 101 Bit Score: 140.41 E-value: 9.32e-40
RPA1N: A subfamily of OB folds corresponding to the N-terminal OB-fold domain of human RPA1 ...
9-105
4.71e-32
RPA1N: A subfamily of OB folds corresponding to the N-terminal OB-fold domain of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). RPA1N is known to specifically interact with the p53 tumor suppressor, DNA polymerase alpha, and transcription factors. In addition to RPA1N, RPA1 contains three other OB folds: ssDNA-binding domain (DBD)-A, DBD-B, and DBD-C.
Pssm-ID: 239923 [Multi-domain] Cd Length: 97 Bit Score: 119.22 E-value: 4.71e-32
RPA1_DBD_A_like: A subgroup of uncharacterized plant OB folds with similarity to the second OB ...
181-268
5.72e-10
RPA1_DBD_A_like: A subgroup of uncharacterized plant OB folds with similarity to the second OB fold, the ssDNA-binding domain (DBD)-A, of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). In addition to DBD-A, RPA1 contains three other OB folds: DBD-B, DBD-C, and RPA1N. The major DNA binding activity of RPA is associated with DBD-A and DBD-B of RPA1. RPA1 DBD-C is involved in trimerization. The ssDNA-binding mechanism is believed to be multistep and to involve conformational change.
Pssm-ID: 239926 [Multi-domain] Cd Length: 86 Bit Score: 56.11 E-value: 5.72e-10
OB-fold nucleic acid binding domain; This family contains OB-fold domains that bind to nucleic ...
179-240
9.33e-09
OB-fold nucleic acid binding domain; This family contains OB-fold domains that bind to nucleic acids. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See pfam00152). Aminoacyl-tRNA synthetases catalyze the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.
Pssm-ID: 460164 [Multi-domain] Cd Length: 75 Bit Score: 52.24 E-value: 9.33e-09
RPA1_DBD_B_like: A subgroup of uncharacterized, plant OB folds with similarity to the third OB ...
302-392
9.74e-08
RPA1_DBD_B_like: A subgroup of uncharacterized, plant OB folds with similarity to the third OB fold, the ssDNA-binding domain (DBD)-B, of human RPA1 (also called RPA70). RPA1 is the large subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). In addition to DBD-B, RPA1 contains three other OB folds: DBD-A, DBD-C, and RPA1N. The major DNA binding activity of RPA is associated with RPA1 DBD-A and DBD-B. RPA1 DBD-C is involved in trimerization. The ssDNA binding mechanism is believed to be multistep and to involve conformational change.
Pssm-ID: 239927 [Multi-domain] Cd Length: 106 Bit Score: 50.35 E-value: 9.74e-08
SoSSB_OBF: A subfamily of OB folds similar to the OB fold of the crenarchaeote Sulfolobus ...
181-245
6.49e-06
SoSSB_OBF: A subfamily of OB folds similar to the OB fold of the crenarchaeote Sulfolobus solfataricus single-stranded (ss) DNA-binding protein (SSoSSB). SSoSSB has a single OB fold, and it physically and functionally interacts with RNA polymerase. In vitro, SSoSSB can substitute for the basal transcription factor TBP, stimulating transcription from promoters under conditions in which TBP is limiting, and supporting transcription when TBP is absent. SSoSSB selectively melts the duplex DNA of promoter sequences. It also relieves transcriptional repression by the chromatin Alba. In addition, SSoSSB activates reverse gyrase activity, which involves DNA binding, DNA cleavage, strand passage and ligation. SSoSSB stimulates all these steps in the presence of the chromatin protein, Sul7d. SSoSSB antagonizes the inhibitory effect of Sul7d on reverse gyrase supercoiling activity. It also physically and functionally interacts with Mini-chromosome Maintenance (MCM), stimulating the DNA helicase activity of MCM.
Pssm-ID: 239937 [Multi-domain] Cd Length: 82 Bit Score: 44.54 E-value: 6.49e-06
RPA2_OBF_family: A family of oligonucleotide binding (OB) folds with similarity to the OB fold ...
181-260
2.66e-03
RPA2_OBF_family: A family of oligonucleotide binding (OB) folds with similarity to the OB fold of the single strand (ss) DNA-binding domain (DBD)-D of human RPA2 (also called RPA32). RPA2 is a subunit of Replication protein A (RPA). RPA is a nuclear ssDNA-binding protein (SSB) which appears to be involved in all aspects of DNA metabolism including replication, recombination, and repair. RPA also mediates specific interactions of various nuclear proteins. In animals, plants, and fungi, RPA is a heterotrimer with subunits of 70KDa (RPA1), 32kDa (RPA2), and 14 KDa (RPA3). RPA contains six OB folds, which are involved in ssDNA binding and in trimerization. The ssDNA binding mechanism is believed to be multistep and to involve conformational change. This family also includes OB folds similar to those found in Escherichia coli SSB, the wedge domain of E. coli RecG (a branched-DNA-specific helicase), E. coli ssDNA specific exodeoxyribonuclease VII large subunit, Pyrococcus abyssi DNA polymerase II (Pol II) small subunit, Sulfolobus solfataricus SSB, and Bacillus subtilis YhaM (a 3'-to-5'exoribonuclease). It also includes the OB folds of breast cancer susceptibility gene 2 protein (BRCA2), Oxytricha nova telomere end binding protein (TEBP), Saccharomyces cerevisiae telomere-binding protein (Cdc13), and human protection of telomeres 1 protein (POT1).
Pssm-ID: 239601 [Multi-domain] Cd Length: 75 Bit Score: 36.96 E-value: 2.66e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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