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RPA1 (NM_002945) - replication protein A1

Replication Protein A 70 Kda Dna-Binding Subunit Isoform 1

Mutations Visualisation

Protein summary

This is preferred isoform of RPA1 protein.
RPA1: replication protein A 70 kDa DNA-binding subunit isoform 1
Description:

This gene encodes the largest subunit of the heterotrimeric Replication Protein A (RPA) complex, which binds to single-stranded DNA (ssDNA), forming a nucleoprotein complex that plays an important role in DNA metabolism, being involved in DNA replication, repair, recombination, telomere maintenance, and co-ordinating the cellular response to DNA damage through activation of the ataxia telangiectasia and Rad3-related protein (ATR) kinase. The nucleoprotein complex protects the single-stranded DNA from nucleases, prevents formation of secondary structures that would interfere with repair, and co-ordinates the recruitment and departure of different genome maintenance factors. This subunit contains four oligonucleotide/oligosaccharide-binding (OB) domains, though the majority of ssDNA binding occurs in two of these domains. The heterotrimeric complex has two different modes of ssDNA binding, a low-affinity and high-affinity mode, determined by which ssDNA binding domains are utilized. The different binding modes differ in the length of DNA bound and in the proteins with which it interacts, thereby playing a role in regulating different genomic maintenance pathways. [provided by RefSeq, Sep 2017].

Publication Note:
This RefSeq record includes a subset of the publications that are available for this gene. Please see the Gene record to access additional publications.

Evidence data:
Transcript exon combination :: SRR1803613.56295.1, SRR1803615.2999.1 [ECO:0000332] RNAseq introns :: single sample supports all introns SAMEA1965299, SAMEA1966682 [ECO:0000348]

##RefSeq-Attributes-START## MANE Ensembl match :: ENST00000254719.10/ ENSP00000254719.4 RefSeq Select criteria :: based on conservation, expression ##RefSeq-Attributes-END##

Strand
+
Chromosome
17
Protein
616 residues
All mutations
88
PTM sites
58
CDS
1,733,387 - 1,800,469
Transcription
1,733,272 - 1,802,848
14.45% of sequence is predicted to be disordered

External references

Mappings retrieved from NCBI & UniProt.
RefSeq
Entrez
gene: 6117
UniProt
Ensembl