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GGDEF domain : ウィキペディア英語版 | GGDEF domain
In molecular biology, the GGDEF domain is a protein domain which appears to be ubiquitous in bacteria and is often linked to a regulatory domain, such as a phosphorylation receiver or oxygen sensing domain. Its function is to synthesize cyclic di-GMP, which is used as an intracellular signalling molecule in a wide variety of bacteria. Enzymatic activity can be strongly influenced by the adjacent domains. Processes regulated by this domain include exopolysaccharide synthesis, biofilm formation, motility and cell differentiation. Structural studies of PleD from ''Caulobacter crescentus'' show that this domain forms a five-stranded beta sheet surrounded by helices, similar to the catalytic core of adenylate cyclase. ==References==
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