Annotations: 4C98

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	CRISPR-associated proteins	8052200	3001554	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	CRISPR-associated proteins	8052201	3001554	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	CRISPR_Cas6_N	e4c98A5	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: CRISPR_Cas6_N	ECOD (v294.1)
A	SapB_2,SapB_1	e4c98A6	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: SapB_2,SapB_1	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.70.1890	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A	3.30.70.1900	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF10040	CRISPR-associated endoribonuclease Cas6 (CRISPR_Cas6)	CRISPR-associated endoribonuclease Cas6	-	Family
A	PF19308	CRISPR Cas6 N-terminal domain (CRISPR_Cas6_N)	CRISPR Cas6 N-terminal domain	In Type I and III CRISPR/Cas systems, the Cas6 family of endoribonucleases generates functional CRISPR-derived RNAs by site-specific cleavage of repeat sequences in precursor transcripts. The structure of Cas6 [1] showed it adopts a tandem ferredoxin ...	In Type I and III CRISPR/Cas systems, the Cas6 family of endoribonucleases generates functional CRISPR-derived RNAs by site-specific cleavage of repeat sequences in precursor transcripts. The structure of Cas6 [1] showed it adopts a tandem ferredoxin/RRM fold. This entry represents the N-terminal domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CAS6B	endonuclease activity nuclease activity catalytic activity, acting on a nucleic acid catalytic activity hydrolase activity, acting on ester bonds hydrolase activity cation binding ion binding binding metal ion binding small molecule binding	biological process involved in interspecies interaction between organisms defense response to virus response to stimulus defense response response to other organism response to stress response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR045648	CRISPR-associated protein Cas6-like, N-terminal domain	Domain
A	IPR045747	CRISPR-associated protein Cas6, N-terminal domain superfamily	Homologous Superfamily
A	IPR019267	CRISPR-associated protein Cas6, C-terminal	Domain
A	IPR010156	CRISPR-associated endoribonuclease Cas6	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.