1FGU

SSDNA-BINDING DOMAIN OF THE LARGE SUBUNIT OF REPLICATION PROTEIN A

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1fgua1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Single strand DNA-binding domain, SSB	Replication protein A 70 KDa subunit (RPA70)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1fgub1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Single strand DNA-binding domain, SSB	Replication protein A 70 KDa subunit (RPA70)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	REPA_OB_2	e1fguA1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: REPA_OB_2	ECOD (1.6)
B	REPA_OB_2	e1fguB1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: REPA_OB_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
B	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01336	OB-fold nucleic acid binding domain (tRNA_anti-codon)	OB-fold nucleic acid binding domain	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an am ...	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse 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 [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.	Domain
A, B	PF16900	Replication protein A OB domain (REPA_OB_2)	Replication protein A OB domain	Replication protein A contains two OB domains in it's DNA binding region. This is the second of the OB domains [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	REPLICATION PROTEIN A 70 KDA DNA-BINDING SUBUNIT	chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity DNA binding binding damaged DNA binding nucleic acid binding sequence-specific DNA binding G-rich strand telomeric DNA binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding telomeric DNA binding cation binding chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity DNA binding binding damaged DNA binding nucleic acid binding sequence-specific DNA binding G-rich strand telomeric DNA binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding telomeric DNA binding cation binding ion binding metal ion binding small molecule binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process nucleobase-containing compound metabolic process DNA replication metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process protein localization cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process nucleobase-containing compound metabolic process DNA replication metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process protein localization localization cellular localization protein localization to chromosome protein localization to organelle cellular macromolecule localization macromolecule localization telomere maintenance via telomerase telomere organization chromosome organization nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening telomere maintenance cellular component organization nucleic acid biosynthetic process organelle organization biosynthetic process cellular component organization or biogenesis DNA biosynthetic process mismatch repair DNA repair DNA-templated DNA replication protein localization to site of double-strand break DNA recombination double-strand break repair recombinational repair double-strand break repair via homologous recombination base-excision repair nucleotide-excision repair sexual reproduction reproductive process meiotic cell cycle cell cycle	membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear chromosome chromosome intracellular organelle lumen intracellular organelle cellular anatomical structure nuclear replisome membraneless organelle replication fork membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear chromosome chromosome intracellular organelle lumen intracellular organelle cellular anatomical structure nuclear replisome membraneless organelle replication fork DNA replication factor A complex protein-DNA complex nuclear replication fork intracellular membraneless organelle intracellular membrane-bounded organelle organelle lumen organelle nuclear lumen replisome nucleoplasm site of double-strand break site of DNA damage chromosome, telomeric region chromosomal region nuclear body PML body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007199	Replication factor-A protein 1, N-terminal	Domain
A, B	IPR047192	Replication factor A, C-terminal, eukaryotes	Domain
A, B	IPR013955	Replication factor A, C-terminal	Domain
A, B	IPR031657	Replication protein A, OB domain	Domain
A, B	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
A, B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A, B	IPR004591	Replication factor A protein 1	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P27694	Chloracne astrocytic tumor breast cancer glioblastoma malignant ependymoma ovarian cancer atypical teratoid rhabdoid tumor Hodgkins lymphoma malignant mesothelioma psoriasis B-cell chronic lymphocytic leukemia dermatomyositis lymphoplasmacytic lymphoma medulloblastoma

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.