7UM1

Structure of bacteriophage AR9 non-virion RNAP polymerase holoenzyme determined by cryo-EM


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth d]RNA_pol_Rpb1_2e7um1d1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: RNA_pol_Rpb1_2ECOD (1.6)
B [auth d]F_UNCLASSIFIEDe7um1d2 A: a+b complex topologyX: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)H: N-terminal domain in RNA-polymerase beta-prime subunit (From Topology)T: N-terminal domain in RNA-polymerase beta-prime subunitF: F_UNCLASSIFIEDECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF04998RNA polymerase Rpb1, domain 5 (RNA_pol_Rpb1_5)RNA polymerase Rpb1, domain 5RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 5, represents the discontin ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain, domain 5, represents the discontinuous cleft domain that is required to from the central cleft or channel where the DNA is bound [1,2].
Domain
E [auth C]PF00562RNA polymerase Rpb2, domain 6 (RNA_pol_Rpb2_6)RNA polymerase Rpb2, domain 6RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain represents the hybrid binding domain ...RNA polymerases catalyse the DNA dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared to three in eukaryotes (not including mitochondrial. and chloroplast polymerases). This domain represents the hybrid binding domain and the wall domain [1]. The hybrid binding domain binds the nascent RNA strand / template DNA strand in the Pol II transcription elongation complex. This domain contains the important structural motifs, switch 3 and the flap loop and binds an active site metal ion[1]. This domain is also involved in binding to Rpb1 and Rpb3 [1]. Many of the bacterial members contain large insertions within this domain, as region known as dispensable region 2 (DRII).
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
DNA-directed RNA polymerase subunit- -
B [auth d]DNA-directed RNA polymerase beta' subunit -
C [auth c]DNA-directed RNA polymerase beta subunit- -
DNA-directed RNA polymerase
E [auth C]DNA-directed RNA polymerase