Annotations: 8D3L

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E	SCOP2B Superfamily	Cas2-like	8086626	3001363	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Cas2-like	8086626	3001363	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	PF01867	e8d3lA1	A: alpha complex topology	X: Cas1 (From Topology)	H: Cas1 (From Topology)	T: Cas1	F: PF01867	ECOD (1.6)
B	PF01867	e8d3lB1	A: alpha complex topology	X: Cas1 (From Topology)	H: Cas1 (From Topology)	T: Cas1	F: PF01867	ECOD (1.6)
C	PF01867	e8d3lC1	A: alpha complex topology	X: Cas1 (From Topology)	H: Cas1 (From Topology)	T: Cas1	F: PF01867	ECOD (1.6)
D	PF01867	e8d3lD1	A: alpha complex topology	X: Cas1 (From Topology)	H: Cas1 (From Topology)	T: Cas1	F: PF01867	ECOD (1.6)
E	PF09827	e8d3lE1	A: a+b two layers	X: Alpha-beta plaits	H: CRISPR associated protein Cas2-like (From Topology)	T: CRISPR associated protein Cas2-like	F: PF09827	ECOD (1.6)
F	PF09827	e8d3lF1	A: a+b two layers	X: Alpha-beta plaits	H: CRISPR associated protein Cas2-like (From Topology)	T: CRISPR associated protein Cas2-like	F: PF09827	ECOD (1.6)
I	PF01930	e8d3lI1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF01930	ECOD (1.6)
J	PF01930	e8d3lJ1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF01930	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
E, F	PF09827	CRISPR associated protein Cas2 (CRISPR_Cas2)	CRISPR associated protein Cas2	-	Family
I, J	PF01930	Domain of unknown function DUF83 (Cas_Cas4)	Domain of unknown function DUF83	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G	PAM/PAM strand 2	-	-	-
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 organic cyclic compound metabolic process organelle organization organic substance metabolic process cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process	-
E, F	CRISPR-associated endonuclease Cas2	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 cation binding magnesium ion binding ion binding binding metal ion 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 cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding catalytic activity, acting on RNA RNA endonuclease activity RNA nuclease activity identical protein binding protein binding protein homodimerization activity protein dimerization activity	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 organic cyclic compound metabolic process organelle organization organic substance metabolic process cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process	-
H	PAM/PAM strand 1	-	-	-
I, J	CRISPR-associated exonuclease Cas4	nuclease activity hydrolase activity, acting on ester bonds hydrolase activity exonuclease activity catalytic activity iron-sulfur cluster binding binding metal cluster binding small molecule binding cation binding ion binding metal ion 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	-

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	IPR019856	CRISPR-associated protein Cas1, DVULG subtype	Family
E, F	IPR019199	Virulence-associated protein D / CRISPR associated protein Cas2	Family
E, F	IPR021127	CRISPR-associated endonuclease Cas2	Family
I, J	IPR011604	PD-(D/E)XK endonuclease-like domain superfamily	Homologous Superfamily
I, J	IPR022765	Dna2/Cas4, domain of unknown function DUF83	Domain
I, J	IPR013343	CRISPR-associated protein Cas4	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.