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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1ddea_ Multi-domain proteins (alpha and beta) DNA primase core DNA primase core DNA primase DnaG catalytic core DNA primase DnaG catalytic core (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyToprim domain-like 8037559 3000737 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ADnaB_binde1ddeA3 A: alpha bundlesX: helical domain in DNA primase DnaG catalytic core (From Topology)H: helical domain in DNA primase DnaG catalytic core (From Topology)T: helical domain in DNA primase DnaG catalytic coreF: DnaB_bindECOD (1.6)
AToprim_Ne1ddeA1 A: a+b two layersX: N-terminal a+b domain in DNA primase core (From Topology)H: N-terminal a+b domain in DNA primase core (From Topology)T: N-terminal a+b domain in DNA primase coreF: Toprim_NECOD (1.6)
AToprim_2e1ddeA2 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Toprim domainF: Toprim_2ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF10410DnaB-helicase binding domain of primase (DnaB_bind)DnaB-helicase binding domain of primaseThis domain is the C-terminal region three-helical domain of primase [1]. Primases synthesise short RNA strands on single-stranded DNA templates, thereby generating the hybrid duplexes required for the initiation of synthesis by DNA polymerases. Pri ...This domain is the C-terminal region three-helical domain of primase [1]. Primases synthesise short RNA strands on single-stranded DNA templates, thereby generating the hybrid duplexes required for the initiation of synthesis by DNA polymerases. Primases are recruited to single-stranded DNA by helicases, and this domain is the region of the primase which binds DnaB-helicase [2]. It is associated with the Toprim domain (Pfam:PF01751) which is the central catalytic core.
Domain
PF08275DNA primase catalytic core, N-terminal domain (DNAG_N)DNA primase catalytic core, N-terminal domainDNA primase (DNAG) is a a nucleotidyltransferase which synthesises the oligoribonucleotide primers required for DNA replication on the lagging strand of the replication fork. It can also prime the leading strand and has been implicated in cell divisi ...DNA primase (DNAG) is a a nucleotidyltransferase which synthesises the oligoribonucleotide primers required for DNA replication on the lagging strand of the replication fork. It can also prime the leading strand and has been implicated in cell division [1]. Primases comprise three domains: a zinc-binding domain at the N-terminal (Pfam:PF01807), a polymerase domain (catalytic core), and a domain that interacts with the replicative helicase (Pfam:PF01807). The catalytic core consists of an alpha+beta domain at the N-terminal (this entry) and a TOPRIM domain at the C-terminal (Pfam:PF13155) [1,2].
Domain
PF13155Toprim-like (Toprim_2)Toprim-like- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
DNA PRIMASE