Protein Domain : Toxin CdiA-like, Filamentous hemagglutinin motif repeats IPR010069

Type  Repeat
Description  This entry represents several repeats of the filamentous hemagglutinin (FHA-1) motif , which have approximately 20 amino acids. The repeats are found at the N-terminal domain of Toxin CdiA from Escherichia coli and similar proteins mostly from bacterial species, including several plant and animal pathogens. The FHA-1 repeats found in the extracellular filament of CdiA form an elongated β-helix, with each ~20-residue motif extending the helix [ , ].CdiA is a toxic component of a toxin-immunity protein module, which functions as a cellular contact-dependent growth inhibition (CDI) system CDI modules allow bacteria to communicate with and inhibit the growth of closely related neighboring bacteria in a contact-dependent fashion. CDI is neutralized by its cognate immunity protein CdiI, but not by non-cognate CdiI from other bacteria [ , ]. Some proteins with nuclease activity on top of the toxin activity are also included in this group, such as tRNA nuclease CdiA from Escherichia coli. This protein cleaves tRNA (CUG-Gln) in the acceptor stem between C70 and A71 [ . 16S rRNA endonuclease CdiA from Enterobacter cloacae cleaves 16S rRNA in vivo and in vitro between adenine 1493 and guanosine 1494 of E.coli 16S rRNA [ ].
Short Name  CdiA_FHA1_rpt

0 Child Features

0 Gene Families

1 Genes

0 Ontology Annotations

0 Parent Features

1 Publications

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