2I71

Crystal structure of a Conserved Protein of Unknown Function from Sulfolobus solfataricus P2

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	d2i71b2	Multi-domain proteins (alpha and beta)	SSO1389-like	SSO1389-like	Cas_DxTHG	Hypothetical protein SSO1389	(Saccharolobus solfataricus P2 ) [TaxId: 273057 ],	SCOPe (2.08)
B	d2i71b3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Saccharolobus solfataricus P2 ) [TaxId: 273057 ],	SCOPe (2.08)
A	d2i71a1	Multi-domain proteins (alpha and beta)	SSO1389-like	SSO1389-like	Cas_DxTHG	Hypothetical protein SSO1389	(Saccharolobus solfataricus P2 ) [TaxId: 273057 ],	SCOPe (2.08)
A	d2i71a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Saccharolobus solfataricus P2 ) [TaxId: 273057 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	Cas DxTHG	8044591	4000184	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	PIN domain-like	8044592	3001041	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	PIN domain-like	8044592	3001041	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)
B	PF09455	e2i71B2	A: alpha bundles	X: Four-helical up-and-down bundle	H: HEPN	T: HEPN domain in CRISPR-associated protein Csx1	F: PF09455	ECOD (1.6)
B	PF22230	e2i71B1	A: a/b three-layered sandwiches	X: CARF (CRISPR-associated Rossmann fold) domains (From Topology)	H: CARF (CRISPR-associated Rossmann fold) domains (From Topology)	T: CARF (CRISPR-associated Rossmann fold) domains	F: PF22230	ECOD (1.6)
A	PF09455	e2i71A3	A: alpha bundles	X: Four-helical up-and-down bundle	H: HEPN	T: HEPN domain in CRISPR-associated protein Csx1	F: PF09455	ECOD (1.6)
A	PF22230	e2i71A4	A: a/b three-layered sandwiches	X: CARF (CRISPR-associated Rossmann fold) domains (From Topology)	H: CARF (CRISPR-associated Rossmann fold) domains (From Topology)	T: CARF (CRISPR-associated Rossmann fold) domains	F: PF22230	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.10640	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	SSO1389-like	CATH (4.3.0)
B	1.10.3740.10	Mainly Alpha	Orthogonal Bundle	SSO1389-like fold	SSO1389-like domains	CATH (4.3.0)
A	3.40.50.10640	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	SSO1389-like	CATH (4.3.0)
A	1.10.3740.10	Mainly Alpha	Orthogonal Bundle	SSO1389-like fold	SSO1389-like domains	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09455	CRISPR-associated (Cas) DxTHG family (Cas_DxTHG)	CRISPR-associated (Cas) DxTHG family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Hypothetical protein	endonuclease activity nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic 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	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR010171	CRISPR system endoribonuclease Csx1	Family
A, B	IPR019016	CRISPR system endoribonuclease Csx1-like	Domain
A, B	IPR027419	CRISPR-associated protein Csx1, C-terminal	Homologous Superfamily
A, B	IPR013383	CRISPR-associated protein DxTHG, conserved site	Conserved Site

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.