Annotations: 6C66

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth G]	PF18019	e6c66G2	A: alpha complex topology	X: PDEase-like	H: HD-domain/PDEase-like (From Topology)	T: HD-domain/PDEase-like	F: PF18019	ECOD (1.6)
A [auth G]	F_UNCLASSIFIED	e6c66G4	A: a+b two layers	X: Cas3 C-terminal domain	H: Cas3 C-terminal domain (From Topology)	T: Cas3 C-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
A [auth G]	PF00270	e6c66G3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00270	ECOD (1.6)
A [auth G]	PF22590	e6c66G1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF22590	ECOD (1.6)
B [auth A]	PF09481	e6c66A1	A: a+b complex topology	X: Cas8-like	H: Cascade subunit CasA/Cse1/Cas8 (From Topology)	T: Cascade subunit CasA/Cse1/Cas8	F: PF09481	ECOD (1.6)
D [auth C]	PF09344	e6c66C1	A: a+b two layers	X: Alpha-beta plaits	H: Cas7-related	T: CRISPR-associated protein Cas7/Csa2-related	F: PF09344	ECOD (1.6)
E [auth D]	PF09344	e6c66D1	A: a+b two layers	X: Alpha-beta plaits	H: Cas7-related	T: CRISPR-associated protein Cas7/Csa2-related	F: PF09344	ECOD (1.6)
F [auth E]	PF09344	e6c66E1	A: a+b two layers	X: Alpha-beta plaits	H: Cas7-related	T: CRISPR-associated protein Cas7/Csa2-related	F: PF09344	ECOD (1.6)
G [auth F]	PF09344	e6c66F1	A: a+b two layers	X: Alpha-beta plaits	H: Cas7-related	T: CRISPR-associated protein Cas7/Csa2-related	F: PF09344	ECOD (1.6)
H	PF09344	e6c66H1	A: a+b two layers	X: Alpha-beta plaits	H: Cas7-related	T: CRISPR-associated protein Cas7/Csa2-related	F: PF09344	ECOD (1.6)
C [auth B]	PF09344	e6c66B1	A: a+b two layers	X: Alpha-beta plaits	H: Cas7-related	T: CRISPR-associated protein Cas7/Csa2-related	F: PF09344	ECOD (1.6)
I	PF09485	e6c66I1	A: alpha bundles	X: CRISPR-associated protein Cse2 (From Topology)	H: CRISPR-associated protein Cse2 (From Topology)	T: CRISPR-associated protein Cse2	F: PF09485	ECOD (1.6)
K	PF09485	e6c66K1	A: alpha bundles	X: CRISPR-associated protein Cse2 (From Topology)	H: CRISPR-associated protein Cse2 (From Topology)	T: CRISPR-associated protein Cse2	F: PF09485	ECOD (1.6)
M	PF09704	e6c66M1	A: a+b two layers	X: Alpha-beta plaits	H: CRISPR system Cas5 homologs (From Topology)	T: CRISPR system Cas5 homologs	F: PF09704	ECOD (1.6)
O	PF08798	e6c66O2	A: a+b two layers	X: Alpha-beta plaits	H: CRISPR transcript (pre-crRNA) processing endoribonuclease-related (From Topology)	T: CRISPR transcript (pre-crRNA) processing endoribonuclease-related	F: PF08798	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth G]	PF18395	Cas3 C-terminal domain (Cas3_C)	Cas3 C-terminal domain	This is the C-temrinal domain of Cas3 proteins. The C-terminal domain (CTD) is shown to completely wrap ssDNA inside the helicase. Deletion of the CTD (aa 819-924) reduced CRISPR interference. It is suggested that the CTD regulates the N-terminal ...	This is the C-temrinal domain of Cas3 proteins. The C-terminal domain (CTD) is shown to completely wrap ssDNA inside the helicase. Deletion of the CTD (aa 819-924) reduced CRISPR interference. It is suggested that the CTD regulates the N-terminal HD nuclease activity by functioning as a substrate filter [1].	Domain
A [auth G]	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
B [auth A]	PF09481	CRISPR-associated protein Cse1 (CRISPR_cse1) (CRISPR_Cse1)	CRISPR-associated protein Cse1 (CRISPR_cse1)	-	Family
C [auth B], D [auth C], E [auth D], F [auth E], G [auth F], C [auth B], D [auth C], E [auth D], F [auth E], G [auth F], H	PF09344	CT1975-like protein (Cas_CT1975)	CT1975-like protein	-	Family
I, K	PF09485	CRISPR-associated protein Cse2 (CRISPR_cse2) (CRISPR_Cse2)	CRISPR-associated protein Cse2 (CRISPR_cse2)	-	Family
M	PF09704	CRISPR-associated protein (Cas_Cas5) (Cas_Cas5d)	CRISPR-associated protein (Cas_Cas5)	-	Family
O	PF08798	CRISPR associated protein (CRISPR_assoc)	CRISPR associated protein	This domain forms an anti-parallel beta strand structure with flanking alpha helical regions.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth G]	CRISPR-associated helicase, Cas3 family	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding catalytic activity, acting on a nucleic acid helicase activity catalytic activity ATP-dependent activity hydrolase activity cation 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	-
B [auth A]	CRISPR-associated protein, Cse1 family	-	-	-
C [auth B], D [auth C], E [auth D], F [auth E], G [auth F], C [auth B], D [auth C], E [auth D], F [auth E], G [auth F], H	CRISPR-associated protein, Cse4 family	-	-	-
I, K	Uncharacterized protein	identical protein binding protein binding binding	-	-
J	crRNA	-	-	-
L	Target strand	-	-	-
M	CRISPR-associated protein, Cas5e family	RNA binding binding organic cyclic compound binding nucleic acid 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	-
N	Nontarget strand	-	-	-
O	CRISPR-associated protein, Cse3 family	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth G]	IPR006474	Helicase Cas3, CRISPR-associated, core	Domain
A [auth G]	IPR041372	Cas3, C-terminal	Domain
A [auth G]	IPR001650	Helicase, C-terminal domain-like	Domain
A [auth G]	IPR038257	CRISPR-associated Cas3-type HD domain superfamily	Homologous Superfamily
A [auth G]	IPR006483	CRISPR-associated Cas3-type, HD domain	Domain
A [auth G]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B [auth A]	IPR013381	CRISPR-associated protein Cse1	Family
C [auth B], D [auth C], E [auth D], F [auth E], G [auth F], C [auth B], D [auth C], E [auth D], F [auth E], G [auth F], H	IPR010148	CRISPR-associated protein, CT1975	Family
I, K	IPR013382	CRISPR-associated protein Cse2	Family
I, K	IPR038287	Cse2 superfamily	Homologous Superfamily
M	IPR010147	CRISPR-associated protein, CasD	Family
M	IPR021124	CRISPR-associated protein, Cas5	Family
M	IPR013422	CRISPR-associated protein Cas5, N-terminal	Domain
O	IPR010179	CRISPR-associated protein Cse3	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.