9DIF | pdb_00009dif

CBASS Pseudomonas syringae Cap5 tetramer with DNA duplex and 3'2'-c-GAMP cyclic dinucleotide ligand


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF13391HNH endonuclease (HNH_2)HNH endonucleaseDomain
A, B
PF18145SMODS-associated and fused to various effectors sensor domain (SAVED)SMODS-associated and fused to various effectors sensor domainPredicted to function as a sensor domain, sensing nucleotides or nucleotide derivatives generated by SMODS and other nucleotide synthetase domains [1]. This domain has been characterised in CD-NTase-associated protein 4 (Cap4), the founding member of ...Predicted to function as a sensor domain, sensing nucleotides or nucleotide derivatives generated by SMODS and other nucleotide synthetase domains [1]. This domain has been characterised in CD-NTase-associated protein 4 (Cap4), the founding member of a major family of downstream receptors that specifically respond to nucleotide second messenger signals in CBASS immunity, a bacterial system that provides immunity against bacteriophage [2,3]. SAVED exhibits divergence in its nucleotide binding pocket which enables the recognition of a wide range of CD-NTase products such as bacterial second messengers with alternative ring size, nucleobase, and 3'-5' or 2'-5' phosphodiester linkages [2]. The sensing of ligands by SAVED activates effectors that are essential for CBASS-mediated protection of bacteria from phage infection.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
HNH endonuclease - -
C [auth D]DNA (5'-D(*TP*TP*GP*CP*TP*CP*TP*CP*TP*TP*AP*AP*GP*AP*GP*AP*GP*CP*A)-3')---

InterPro: Protein Family Classification InterPro Database Homepage