Annotations: 6KC0

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18211	Csm1 subunit domain B (Csm1_B)	Csm1 subunit domain B	This domain is found in the Csm1 subunit of the Csm complex found in Thermococcus onnurineus. Csm is a type III-A CRISPR-Cas system, which is an RNA-guided immune defense mechanism that detects and destroys foreign DNA or RNA. This domain is known as ...	This domain is found in the Csm1 subunit of the Csm complex found in Thermococcus onnurineus. Csm is a type III-A CRISPR-Cas system, which is an RNA-guided immune defense mechanism that detects and destroys foreign DNA or RNA. This domain is known as domain A and is positioned side by side with domain C. Both domain A and domain C adopt the BABBA topology. Domain A interacts primarily with domain B [1].	Domain
A	PF20824	CRISPR RNA silencing complex Cmr2 subunit, second helical domain (Cmr2_hel_dom2)	CRISPR RNA silencing complex Cmr2 subunit, second helical domain	The prokaryotic CRISPR RNA-Cas protein (Cmr) complex provides protection against mobile genetic elements by cleaving foreign RNA. Its largest subunit is Cmr2. This protein shows a N-terminal HD (histidine-aspartate) domain, two RRM domains resembling ...	The prokaryotic CRISPR RNA-Cas protein (Cmr) complex provides protection against mobile genetic elements by cleaving foreign RNA. Its largest subunit is Cmr2. This protein shows a N-terminal HD (histidine-aspartate) domain, two RRM domains resembling adenylate cyclase and two alpha-helical domains. This entry represents the second alpha-helical domain. It is similar to the small subunit Cmr5, which contains six alpha-helices and two helical insertions that fold into a single globular structure [1-5]. This domain is also found in Cas10 proteins from bacteria [6].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CRISPR system single-strand-specific deoxyribonuclease Cas10/Csm1 (subtype III-A),CRISPR system single-strand-specific deoxyribonuclease Cas10/Csm1 (subtype III-A)	nuclease activity hydrolase activity, acting on ester bonds hydrolase activity exonuclease activity catalytic activity 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 nuclease activity hydrolase activity, acting on ester bonds hydrolase activity exonuclease activity catalytic activity 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 endonuclease activity RNA binding nucleic acid binding transferase activity identical protein binding protein 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	extracellular region cellular anatomical entity cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000160	GGDEF domain	Domain
A	IPR048693	CRISPR RNA silencing complex Cmr2-like, C-terminal domain	Domain
A	IPR041062	Csm1, subunit domain B	Domain
A	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A	IPR013408	CRISPR system single-strand-specific deoxyribonuclease Cas10/Csm1	Family
A	IPR006674	HD domain	Domain
A	IPR000160	GGDEF domain	Domain
A	IPR013408	CRISPR system single-strand-specific deoxyribonuclease Cas10/Csm1	Family
A	IPR041062	Csm1, subunit domain B	Domain
A	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A	IPR006674	HD domain	Domain

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.