Annotations: 4MM2

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	KOG2851	e4mm2A2	A: alpha arrays	X: Insert all-alpha domain in prim-pol (From Topology)	H: Insert all-alpha domain in prim-pol (From Topology)	T: Insert all-alpha domain in prim-pol	F: KOG2851	ECOD (1.6)
A	DNA_primase_S	e4mm2A1	A: a+b complex topology	X: Prim-pol domain (From Topology)	H: Prim-pol domain (From Topology)	T: Prim-pol domain	F: DNA_primase_S	ECOD (1.6)
B	KOG2851	e4mm2B2	A: alpha arrays	X: Insert all-alpha domain in prim-pol (From Topology)	H: Insert all-alpha domain in prim-pol (From Topology)	T: Insert all-alpha domain in prim-pol	F: KOG2851	ECOD (1.6)
B	DNA_primase_S	e4mm2B1	A: a+b complex topology	X: Prim-pol domain (From Topology)	H: Prim-pol domain (From Topology)	T: Prim-pol domain	F: DNA_primase_S	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.920.10	Alpha Beta	Alpha-Beta Complex	DNA primase, PRIM domain	DNA primase, PRIM domain	CATH (4.3.0)
B	3.90.920.10	Alpha Beta	Alpha-Beta Complex	DNA primase, PRIM domain	DNA primase, PRIM domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01896	DNA primase small subunit (DNA_primase_S)	DNA primase small subunit	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	DNA primase small subunit	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA-directed 5'-3' RNA polymerase activity DNA primase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups cation binding metal ion 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 DNA-templated DNA replication DNA replication initiation cellular biosynthetic process DNA replication, synthesis of primer cellular metabolic process 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 DNA-templated DNA replication DNA replication initiation cellular biosynthetic process DNA replication, synthesis of primer cellular metabolic process RNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process cellular process	membrane-bounded organelle protein-containing complex alpha DNA polymerase:primase complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear chromosome chromosome transferase complex intracellular organelle lumen intracellular organelle nuclear replisome replication fork membrane-bounded organelle protein-containing complex alpha DNA polymerase:primase complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear chromosome chromosome transferase complex intracellular organelle lumen intracellular organelle nuclear replisome replication fork non-membrane-bounded organelle catalytic complex protein-DNA complex nuclear replication fork intracellular membrane-bounded organelle cellular anatomical entity DNA polymerase complex transferase complex, transferring phosphorus-containing groups nuclear DNA-directed RNA polymerase complex organelle lumen organelle RNA polymerase complex intracellular non-membrane-bounded organelle DNA-directed RNA polymerase complex intracellular protein-containing complex nuclear lumen replisome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002755	DNA primase, small subunit	Family
A, B	IPR014052	DNA primase, small subunit, eukaryotic/archaeal	Family

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.