Annotations: 6U7B

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	OAS1_C	e6u7bA1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: OAS1_C	ECOD (1.6)
A	NTP_transf_2	e6u7bA2	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: NTP_transf_2	ECOD (1.6)
C	OAS1_C	e6u7bC1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: OAS1_C	ECOD (1.6)
C	NTP_transf_2	e6u7bC2	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: NTP_transf_2	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF18138	Bacterial HORMA domain family 1 (bacHORMA_1)	Bacterial HORMA domain family 1	Family of bacterial HORMA domains found in conserved genome contexts with Pch2/TRIP13 P-loop NTPases. Acts as a 'third component' in broad class of conflict systems reliant on the production of second messenger nucleotide or nucleotide derivatives. T ...	Family of bacterial HORMA domains found in conserved genome contexts with Pch2/TRIP13 P-loop NTPases. Acts as a 'third component' in broad class of conflict systems reliant on the production of second messenger nucleotide or nucleotide derivatives. Together with Pch2/TRIP13, could act as co-effectors or in regulation of other effectors of the systems [1]. It is found in proteins from the CBASS (cyclic oligonucleotide-based antiphage signaling system), a system that provides immunity against bacteriophage. This domain is found in CD-NTase-associated protein 7 (Cap7) from E.coli, that acts as a sensor protein of CBSS and binds to a closure peptide allowing it to activate the CD-NTase CdnC for second messenger synthesis and, therefore, it activates a diverse range of effectors [2,3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	E. coli MS115-1 CdnC	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding diadenylate cyclase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups RNA binding double-stranded RNA binding nucleic acid binding 2'-5'-oligoadenylate synthetase activity adenylyltransferase activity cation binding metal ion binding	nucleoside phosphate metabolic process primary metabolic process nucleotide metabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process phosphorus metabolic process biological process involved in interspecies interaction between organisms response to stimulus response to other organism nucleoside phosphate metabolic process primary metabolic process nucleotide metabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process phosphorus metabolic process biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response 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	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane
B, D	bacHORMA_1 domain-containing protein	-	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response 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, C	IPR043519	Nucleotidyltransferase superfamily	Homologous Superfamily
A, C	IPR053445	CBASS cyclic nucleotide synthase	Family
A, C	IPR006116	2-5OAS/ClassI-CCAase, nucleotidyltransferase domain	Domain
B, D	IPR041162	Bacterial HORMA domain 1	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 R01GM157729.