4QR0 | pdb_00004qr0

Crystal structure of Streptococcus pyogenes Cas2 at pH 5.6

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4qr0b_	Alpha and beta proteins (a+b)	Ferredoxin-like	CRISPR associated protein Cas2-like	automated matches	automated matches	(Streptococcus pyogenes serotype M1 ) [TaxId: 301447 ],	SCOPe (2.08)
A	d4qr0a_	Alpha and beta proteins (a+b)	Ferredoxin-like	CRISPR associated protein Cas2-like	automated matches	automated matches	(Streptococcus pyogenes serotype M1 ) [TaxId: 301447 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Cas2-like	8086630	3001363	SCOP2B (2022-06-29)
A	SCOP2 Family	Cas2 major variant-like	8086629	4003727	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Cas2-like	8086630	3001363	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e4qr0B1	A: Immunoglobulin-like beta-sandwich	X: Immunoglobulin-related	H: PEBP-like	T: Peptidase_S8	F:	ECOD (20:10:01)
A		e4qr0A1	A: Immunoglobulin-like beta-sandwich	X: Immunoglobulin-related	H: PEBP-like	T: Peptidase_S8	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.70.240	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A	3.30.70.240	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, B	PF09827	CRISPR associated protein Cas2 (CRISPR_Cas2)	CRISPR associated protein Cas2	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	CRISPR-associated endoribonuclease Cas2	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	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR019199	Virulence-associated protein D / CRISPR associated protein Cas2	Family
A, B	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.