Annotations: 3SK9

Crystal structure of the Thermus thermophilus cas3 HD domain

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)
A	Cas3_HD	e3sk9A1	A: alpha arrays	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	H: SH3	T: SH3	F: Cas3_HD	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.3210.30	Mainly Alpha	Orthogonal Bundle	Hypothetical protein af1432		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18019	Cas3, HD domain (Cas3_HD)	Cas3, HD domain	This HD domain is found at the N-terminus of Cas3 enzymes fused to a helicase domain. This domain is sometimes found as a separate protein. It acts as a nuclease that cleaves ssDNA.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Putative uncharacterized protein TTHB187	nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity catalytic activity ATP-dependent activity RNA binding binding nucleic acid binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR054712	CRISPR-associated nuclease/helicase Cas3 domain	Domain
A	IPR006474	Helicase Cas3, CRISPR-associated, core	Domain
A	IPR041372	Cas3, C-terminal	Domain
A	IPR050547	DEAD box ATP-dependent RNA helicases	Family
A	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A	IPR038257	CRISPR-associated Cas3-type HD domain superfamily	Homologous Superfamily
A	IPR006483	CRISPR-associated Cas3-type, HD domain	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily