Annotations: 7CR6

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E	CRISPR_Cas2	e7cr6E1	A: a+b two layers	X: Alpha-beta plaits	H: CRISPR associated protein Cas2-like (From Topology)	T: CRISPR associated protein Cas2-like	F: CRISPR_Cas2	ECOD (1.6)
F	CRISPR_Cas2	e7cr6F1	A: a+b two layers	X: Alpha-beta plaits	H: CRISPR associated protein Cas2-like (From Topology)	T: CRISPR associated protein Cas2-like	F: CRISPR_Cas2	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01867	CRISPR associated protein Cas1 (Cas_Cas1)	CRISPR associated protein Cas1	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	CRISPR-associated endonuclease Cas1	DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity DNA nuclease activity DNA binding binding organic cyclic compound binding nucleic acid binding cation binding DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity DNA nuclease activity DNA binding binding organic cyclic compound binding nucleic acid binding cation binding ion binding metal ion binding small molecule binding	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to stress response to external biotic stimulus response to virus maintenance of CRISPR repeat elements chromosome organization biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to stress response to external biotic stimulus response to virus maintenance of CRISPR repeat elements chromosome organization primary metabolic process DNA metabolic process maintenance of DNA repeat elements nucleic acid metabolic process cellular component organization nucleobase-containing compound metabolic process organelle organization cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process	-
E, F	CRISPR-associated endoribonuclease Cas2 1	endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to stress response to external biotic stimulus response to virus maintenance of CRISPR repeat elements chromosome organization biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to stress response to external biotic stimulus response to virus maintenance of CRISPR repeat elements chromosome organization primary metabolic process DNA metabolic process maintenance of DNA repeat elements nucleic acid metabolic process cellular component organization nucleobase-containing compound metabolic process organelle organization cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process	-
G	DNA (36-MER)	-	-	-
H	DNA (36-MER)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR002729	CRISPR-associated protein Cas1	Family
A, B, C, D	IPR042206	CRISPR-associated endonuclease Cas1, C-terminal domain	Homologous Superfamily
A, B, C, D	IPR042211	CRISPR-associated endonuclease Cas1, N-terminal domain	Homologous Superfamily
A, B, C, D	IPR023843	CRISPR-associated protein Cas1, cyanobacteria-type	Family
A, B, C, D	IPR050646	CRISPR-associated endonuclease Cas1	Family
E, F	IPR019199	Virulence-associated protein D / CRISPR associated protein Cas2	Family
E, F	IPR021127	CRISPR-associated endonuclease Cas2	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 R01GM133198.