Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyRibonuclease H-like 8092300 3000143 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCas9 BH domain-like 8045840 3002579 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCas9 PI domain-like 8092301 3002581 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyHis-Me finger endonucleases 8048679 3001893 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyRibonuclease H-like 8092300 3000143 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyRibonuclease H-like 8092300 3000143 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCas9 REC domain-like 8045843 3002580 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BCas9_RECe4un3B1 A: alpha complex topologyX: CRISPR-associated endonuclease Cas9 alpha-helical lobeH: CRISPR-associated endonuclease Cas9 alpha-helical lobe (From Topology)T: CRISPR-associated endonuclease Cas9 alpha-helical lobeF: Cas9_RECECOD (1.6)
BCas9_PI_Ne4un3B3 A: a+b two layersX: SSHS domainH: SSHS domain in CRISPR-associated endonuclease Cas9 (From Topology)T: SSHS domain in CRISPR-associated endonuclease Cas9F: Cas9_PI_NECOD (1.6)
BCas9_PI_Ce4un3B2 A: a+b complex topologyX: CRISPR-associated endonuclease Cas9 C-terminal domain (From Topology)H: CRISPR-associated endonuclease Cas9 C-terminal domain (From Topology)T: CRISPR-associated endonuclease Cas9 C-terminal domainF: Cas9_PI_CECOD (1.6)
BCas9_1ste4un3B5 A: mixed a+b and a/bX: Ribonuclease H-likeH: Ribonuclease H-like (From Topology)T: Ribonuclease H-likeF: Cas9_1stECOD (1.6)
BHNH_4e4un3B4 A: few secondary structure elementsX: His-Me finger endonucleases (From Homology)H: His-Me finger endonucleasesT: His-Me finger endonucleasesF: HNH_4ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF16592REC lobe of CRISPR-associated endonuclease Cas9 (Cas9_REC)REC lobe of CRISPR-associated endonuclease Cas9- Family
PF16593Bridge helix of CRISPR-associated endonuclease Cas9 (Cas9-BH)Bridge helix of CRISPR-associated endonuclease Cas9- Family
PF13395HNH endonuclease (HNH_4)HNH endonucleaseThis HNH nuclease domain is found in CRISPR-related proteins.Domain
PF16595PAM-interacting domain of CRISPR-associated endonuclease Cas9 (Cas9_PI)PAM-interacting domain of CRISPR-associated endonuclease Cas9Cas9_PI is a family found at the C-terminal of bacterial type II CRISPR system Cas9 endonuclease. This domain adopts a novel protein fold that is unique to the Cas9 family. It is positioned in the structure-DNA-complex to recognise the PAM sequence o ...Cas9_PI is a family found at the C-terminal of bacterial type II CRISPR system Cas9 endonuclease. This domain adopts a novel protein fold that is unique to the Cas9 family. It is positioned in the structure-DNA-complex to recognise the PAM sequence on the non-complementary DNA strand of the crRNA. PAM sequence is protospacer-adjacent motifs on DNA. See family CRISPR-DR2, Rfam:RF01315. Cas9 carries two nuclease domains, HNH and RuvC, which cleave the DNA strands that are complementary and non-complementary to the 20 nucleotide guide sequence in crRNAs, respectively [1].
Domain
PF22702Cas9 RuvC domain (Cas9_RuvC)Cas9 RuvC domainThis entry represent a RuvC endonuclease domain (RNAseH-like) domain found in CRISPR-Cas9 from Streptococcus pyogenes and related sequences [1-5]. This domain, and the HNH (Pfam:PF13395) domain of Cas9, are used to cleave the DNA strands complementar ...This entry represent a RuvC endonuclease domain (RNAseH-like) domain found in CRISPR-Cas9 from Streptococcus pyogenes and related sequences [1-5]. This domain, and the HNH (Pfam:PF13395) domain of Cas9, are used to cleave the DNA strands complementary (target) and non-complementary (non-target) to the crRNA, respectively [5]. This domain is related to Pfam:PF18541.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
SGRNA---
CRISPR-ASSOCIATED ENDONUCLEASE CAS9/CSN1 -
TARGET DNA STRAND---
NON-TARGET DNA STRAND---