Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyEndoU-like8092437 3000687 SCOP2B (2022-02-25)
ASCOP2B SuperfamilyS-adenosyl-L-methionine-dependent methyltransferases8092436 3000118 SCOP2B (2022-02-25)
BSCOP2B SuperfamilyEndoU-like8092437 3000687 SCOP2B (2022-02-25)
BSCOP2B SuperfamilyS-adenosyl-L-methionine-dependent methyltransferases8092436 3000118 SCOP2B (2022-02-25)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AXendoU_likee5s6xA1 A: a+b complex topologyX: RNase A-likeH: EndoU-like (From Topology)T: EndoU-likeF: XendoU_likeECOD (1.6)
ANSP11_2nde5s6xA2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: S-adenosyl-L-methionine-dependent methyltransferasesF: NSP11_2ndECOD (1.6)
BXendoU_likee5s6xB1 A: a+b complex topologyX: RNase A-likeH: EndoU-like (From Topology)T: EndoU-likeF: XendoU_likeECOD (1.6)
BNSP11_2nde5s6xB2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: S-adenosyl-L-methionine-dependent methyltransferasesF: NSP11_2ndECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
A, B PF19215Coronavirus replicase NSP15, uridylate-specific endoribonuclease (CoV_NSP15_C)Coronavirus replicase NSP15, uridylate-specific endoribonucleaseThis entry represents the C-terminal domain of coronavirus non-structural protein 15 (NSP15 or nsp15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain exhibits endoribonuclease activity designated ...This entry represents the C-terminal domain of coronavirus non-structural protein 15 (NSP15 or nsp15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain exhibits endoribonuclease activity designated EndoU, highly conserved in all known CoVs and is part of the replicase-transcriptase complex that plays important roles in virus replication and transcription [1, 2, 3]. NSP15 is a Uridylate-specific endoribonuclease that cleaves the 5'-polyuridines from negative-sense viral RNA, termed PUN RNA either upstream or downstream of uridylates, at GUU or GU to produce molecules with 2',3'-cyclic phosphate ends [2, 3]. PUN RNA is a CoV MDA5-dependent pathogen-associated molecular pattern (PAMP) [3].
Domain
A, B PF19216Coronavirus replicase NSP15, middle domain (CoV_NSP15_M)Coronavirus replicase NSP15, middle domainThis entry represents the non-catalytic middle domain from coronavirus non-structural protein 15 (NSP15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain is formed by ten beta strands organised in ...This entry represents the non-catalytic middle domain from coronavirus non-structural protein 15 (NSP15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain is formed by ten beta strands organised into three beta hairpins [1, 2].
Domain
A, B PF19219Coronavirus replicase NSP15, N-terminal oligomerisation (CoV_NSP15_N)Coronavirus replicase NSP15, N-terminal oligomerisationThis is the N-terminal domain of the coronavirus nonstructural protein 15 (NSP15), which is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. NSP15, is a nidoviral RNA uridylate-specific endoribonuclease (NendoU) carryi ...This is the N-terminal domain of the coronavirus nonstructural protein 15 (NSP15), which is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. NSP15, is a nidoviral RNA uridylate-specific endoribonuclease (NendoU) carrying C-terminal catalytic domain belonging to the EndoU family. The SARS-CoV-2 NendoU monomers assemble into a double-ring hexamer, generated by a dimer of trimers. The hexamer is stabilized by the interactions of N-terminal oligomerization domain.
Domain

Gene Product Annotation Gene Product Annotation

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B Uridylate-specific endoribonuclease