Annotations: 9ARD

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF18134	Adenylyl/Guanylyl and SMODS C-terminal sensor domain (AGS_C)	Adenylyl/Guanylyl and SMODS C-terminal sensor domain	This entry represents a sensor domain found in cytidylate cyclase (PycC, clade E) [3] and cyclic GMP-AMP synthase (CdnB) from E.coli [1], which are involved in immunity against bacteriophage [1-3]. PycC and CdnB are part of the Pycsar (pyrimidine cyc ...	This entry represents a sensor domain found in cytidylate cyclase (PycC, clade E) [3] and cyclic GMP-AMP synthase (CdnB) from E.coli [1], which are involved in immunity against bacteriophage [1-3]. PycC and CdnB are part of the Pycsar (pyrimidine cyclase system for antiphage resistance) and CBASS respectively, which are closely related; both of these proteins synthesise cyclic nucleotides in response to infection which serve as specific second messenger signals that activate the adjacent effectors. This domain (AGS-C) adopts an Ig-like fold and it has been suggested to mediate phage detection [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Cytidylate cyclase	phosphorus-oxygen lyase activity cyclase activity lyase activity adenylate cyclase activity catalytic activity binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding metal ion binding	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cellular process signal transduction intracellular signal transduction cell communication biological process involved in interspecies interaction between organisms defense response to virus defense response response to other organism cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cellular process signal transduction intracellular signal transduction cell communication biological process involved in interspecies interaction between organisms defense response to virus defense response response to other organism response to stress response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus nucleoside phosphate metabolic process nucleotide biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleotide metabolic process cyclic nucleotide metabolic process nucleobase-containing compound metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleobase-containing small molecule metabolic process cyclic nucleotide biosynthetic process nucleoside phosphate biosynthetic process phosphate-containing compound metabolic process metabolic process small molecule metabolic process phosphorus metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR040511	Adenylyl/Guanylyl and SMODS, C-terminal sensor domain	Domain
A, B	IPR001054	Adenylyl cyclase class-3/4/guanylyl cyclase	Domain
A, B	IPR029787	Nucleotide cyclase	Homologous Superfamily

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.