Annotations: 7CR6

Synechocystis Cas1-Cas2/prespacer binary complex

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	V-set	e7cr6F1	A: alpha arrays	X: DNA methylase specificity domain	H: Bromodomain	T: Bromodomain	F: V-set	ECOD (v295)
E	V-set	e7cr6E1	A: alpha arrays	X: DNA methylase specificity domain	H: Bromodomain	T: Bromodomain	F: V-set	ECOD (v295)
D	MIF	e7cr6D1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: MIF	ECOD (v295)
C	MIF	e7cr6C1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: MIF	ECOD (v295)
B	MIF	e7cr6B1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: MIF	ECOD (v295)
A	MIF	e7cr6A1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: MIF	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.100.10.20	Alpha Beta	Ribosomal Protein L15	Chain: K	domain 2	CATH (utative)
D	1.20.120.920	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CRISPR-associated endonuclease Cas1, C-terminal domain	CATH (utative)
C	3.100.10.20	Alpha Beta	Ribosomal Protein L15	Chain: K	domain 2	CATH (utative)
C	1.20.120.920	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CRISPR-associated endonuclease Cas1, C-terminal domain	CATH (utative)
B	3.100.10.20	Alpha Beta	Ribosomal Protein L15	Chain: K	domain 2	CATH (utative)
B	1.20.120.920	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CRISPR-associated endonuclease Cas1, C-terminal domain	CATH (utative)
A	3.100.10.20	Alpha Beta	Ribosomal Protein L15	Chain: K	domain 2	CATH (utative)
A	1.20.120.920	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CRISPR-associated endonuclease Cas1, C-terminal domain	CATH (utative)

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
H	DNA (36-MER)	-	-	-
G	DNA (36-MER)	-	-	-
E, F	CRISPR-associated endoribonuclease Cas2 1	endonuclease activity nuclease activity catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity catalytic activity 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 maintenance of CRISPR repeat elements chromosome organization primary metabolic process DNA metabolic process 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 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	-
A, B, C, D	CRISPR-associated endonuclease Cas1	DNA binding binding nucleic acid binding DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA nuclease activity catalytic activity, acting on a nucleic acid catalytic activity DNA nuclease activity hydrolase activity cation binding ion binding metal ion binding DNA binding binding nucleic acid binding DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA nuclease activity catalytic activity, acting on a nucleic acid catalytic activity DNA nuclease activity hydrolase activity cation binding ion binding metal ion binding small molecule binding	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 biological process involved in interspecies interaction between organisms 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 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 clearance of foreign intracellular nucleic acids response to biotic stimulus defense response to other organism response to stress CRISPR-cas system response to external biotic stimulus defense response to virus response to virus	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E, F	IPR019199	Virulence-associated protein D / CRISPR associated protein Cas2	Family
E, F	IPR021127	CRISPR-associated endonuclease Cas2	Family
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

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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.