6RJ9

Cryo-EM structure of St1Cas9-sgRNA-tDNA20-AcrIIA6 monomeric assembly.


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AUNK_F_TYPEe6rj9A1 A: alpha arraysX: HTHH: HTHT: tetra-helical, lambda repressor-likeF: UNK_F_TYPEECOD (1.6)
AEUF07691e6rj9A2 A: a+b two layersX: dsRBD-likeH: Anti-CRISPR protein AcrIIA6 (From Topology)T: Anti-CRISPR protein AcrIIA6F: EUF07691ECOD (1.6)
BUNK_F_TYPEe6rj9B1 A: alpha arraysX: HTHH: HTHT: tetra-helical, lambda repressor-likeF: UNK_F_TYPEECOD (1.6)
BEUF07691e6rj9B2 A: a+b two layersX: dsRBD-likeH: Anti-CRISPR protein AcrIIA6 (From Topology)T: Anti-CRISPR protein AcrIIA6F: EUF07691ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF18470Cas9 alpha-helical lobe domain (Cas9_a)Cas9 alpha-helical lobe domainThis is an alpha-helical lobe domain found in Cas9 proteins. Cas9 enzymes adopt a bilobed architecture composed of a nuclease lobe containing juxtaposed RuvC and HNH nuclease domains and a variable alpha-helical lobe likely to be involved in nucleic ...This is an alpha-helical lobe domain found in Cas9 proteins. Cas9 enzymes adopt a bilobed architecture composed of a nuclease lobe containing juxtaposed RuvC and HNH nuclease domains and a variable alpha-helical lobe likely to be involved in nucleic acid binding. Amino acid residues located in both the nuclease and alpha-helical lobe clefts are highly conserved within type II-A Cas9 proteins [1].
Domain
PF18061CRISPR-Cas9 WED domain (CRISPR_Cas9_WED)CRISPR-Cas9 WED domainThis domain, known as the wedge (WED) domain, is found in Cas9 proteins which are present in Staphylococcus aureus. Cas9 cleaves double-stranded DNA targets with a protospacer adjacent motif (PAM) and complementarity to the guide RNA. The Cas9 WED do ...This domain, known as the wedge (WED) domain, is found in Cas9 proteins which are present in Staphylococcus aureus. Cas9 cleaves double-stranded DNA targets with a protospacer adjacent motif (PAM) and complementarity to the guide RNA. The Cas9 WED domain has a fold comprising a twisted five-stranded beta sheet flanked by four alpha helices, and is responsible for the recognition of the distorted repeat: anti-repeat duplex. WED domains are responsible for the recognition of single-guide RNA scaffolds [1].
Domain
PF18070CRISPR-Cas9 PI domain (Cas9_PI2)CRISPR-Cas9 PI domainThis domain is found in Cas9 proteins which can be Staphylococcus aureus. Cas9 cleaves double-stranded DNA targets with a protospacer adjacent motif (PAM) and complementarity to the guide RNA. When this domain is combined with the C-terminal domain i ...This domain is found in Cas9 proteins which can be Staphylococcus aureus. Cas9 cleaves double-stranded DNA targets with a protospacer adjacent motif (PAM) and complementarity to the guide RNA. When this domain is combined with the C-terminal domain it is called the Pam-interacting (PI) domain. The Cas9 orthologs from different microbes have highly divergent sequences but their PI domains share a conserved core fold and recognize distinct PAM sequences [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
sgRNA---
tDNA20---
A, B
AcrIIA6- -
CRISPR-associated endonuclease Cas9 1 -