3A5U

Promiscuity and specificity in DNA binding to SSB: Insights from the structure of the Mycobacterium smegmatis SSB-ssDNA complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3a5ua_	All beta proteins	OB-fold	Nucleic acid-binding proteins	Single strand DNA-binding domain, SSB	automated matches	(Mycolicibacterium smegmatis MC2 155 ) [TaxId: 246196 ],	SCOPe (2.08)
B	d3a5ub_	All beta proteins	OB-fold	Nucleic acid-binding proteins	Single strand DNA-binding domain, SSB	automated matches	(Mycolicibacterium smegmatis MC2 155 ) [TaxId: 246196 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Nucleic acid-binding proteins	8076323	3000135	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleic acid-binding proteins	8076323	3000135	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	SSB	e3a5uA1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: SSB	ECOD (1.6)
B	SSB	e3a5uB1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: SSB	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	PF00436	Single-strand binding protein family (SSB)	Single-strand binding protein family	This family includes single stranded binding proteins and also the primosomal replication protein N (PriB). PriB forms a complex with PriA, PriC and ssDNA.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	DNA (31-MER)	-	-	-
A, B	Single-stranded DNA-binding protein	DNA binding binding organic cyclic compound binding single-stranded DNA binding nucleic acid binding	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000424	Primosome PriB/single-strand DNA-binding	Family
A, B	IPR011344	Single-stranded DNA-binding protein	Family
A, B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.