Annotations: 3BQ1

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C [auth A]	d3bq1a1	Alpha and beta proteins (a+b)	Lesion bypass DNA polymerase (Y-family), little finger domain	Lesion bypass DNA polymerase (Y-family), little finger domain	Lesion bypass DNA polymerase (Y-family), little finger domain	DinB homolog (DBH)	(Sulfolobus acidocaldarius ) [TaxId: 2285 ],	SCOPe (2.08)
C [auth A]	d3bq1a2	Multi-domain proteins (alpha and beta)	DNA/RNA polymerases	DNA/RNA polymerases	Lesion bypass DNA polymerase (Y-family), catalytic domain	DinB homolog (DBH)	(Sulfolobus acidocaldarius ) [TaxId: 2285 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth A]	SCOP2 Family	Y-family DNA polymerase catalytic domain	8027066	4000563	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Family	Lesion bypass DNA polymerase (Y-family) little finger domain	8027061	4000558	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8039445	3001272	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	Ta1206-like	8055759	3001431	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	Lesion bypass DNA polymerase (Y-family) little finger domain	8039440	3000579	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth A]	IMS_HHH	e3bq1A1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: IMS_HHH	ECOD (1.6)
C [auth A]	IMS_C	e3bq1A2	A: a+b two layers	X: Reverse ferredoxin	H: Lesion bypass DNA polymerase (Y-family), little finger domain (From Topology)	T: Lesion bypass DNA polymerase (Y-family), little finger domain	F: IMS_C	ECOD (1.6)
C [auth A]	IMS	e3bq1A3	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: IMS	ECOD (1.6)
C [auth A]	IMS_1	e3bq1A4	A: a+b three layers	X: Hypothetical protein Ta1206-like (From Topology)	H: Hypothetical protein Ta1206-like (From Topology)	T: Hypothetical protein Ta1206-like	F: IMS_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth A]	3.30.70.270	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Reverse transcriptase/Diguanylate cyclase domain	CATH (4.3.0)
C [auth A]	3.40.1170.60	Alpha Beta	3-Layer(aba) Sandwich	MutS, DNA mismatch repair protein, domain I		CATH (4.3.0)
C [auth A]	1.10.150.20	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
C [auth A]	3.30.1490.100	Alpha Beta	2-Layer Sandwich	Dna Ligase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth A]	PF00817	impB/mucB/samB family (IMS)	impB/mucB/samB family	-	Family
C [auth A]	PF11798	IMS family HHH motif (IMS_HHH)	IMS family HHH motif	-	Motif

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth P]	DNA (5'-D(DGPDAPDAPDGPDCPDCPDGPDGPDCPDG)-3')	-	-	-
B [auth T]	DNA (5'-D(DTDTPDCPDCPDGPDCPDCPDCPDGPDGPDCPDTPDTPDCP*DC)-3')	-	-	-
C [auth A]	DNA polymerase IV	catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding organic cyclic compound binding damaged DNA binding nucleic acid binding	cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair DNA-templated DNA replication DNA replication	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A]	IPR022880	DNA polymerase IV	Family
C [auth A]	IPR001126	UmuC domain	Domain
C [auth A]	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
C [auth A]	IPR036775	DNA polymerase, Y-family, little finger domain superfamily	Homologous Superfamily
C [auth A]	IPR024728	DNA polymerase type-Y, HhH motif	Conserved Site
C [auth A]	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	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.