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2017 ; 13
(4
): 350-359
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Versatile modes of cellular regulation via cyclic dinucleotides
#MMPMID28328921
Krasteva PV
; Sondermann H
Nat Chem Biol
2017[Mar]; 13
(4
): 350-359
PMID28328921
show ga
Since the discovery of c-di-GMP almost three decades ago, cyclic dinucleotides
(CDNs) have emerged as widely used signaling molecules in most kingdoms of life.
The family of second messengers now includes c-di-AMP and distinct versions of
mixed cyclic GMP-AMP (cGAMP) compounds. In addition to these nucleotides, a vast
number of proteins for the production and turnover of these molecules have been
described, as well as effectors that translate the signals into physiological
responses. The latter include, but are not limited to, mechanisms for adaptation
and survival in prokaryotes, persistence and virulence of bacterial pathogens,
and immune responses to viral and bacterial invasion in eukaryotes. In this
review, we will focus on recent discoveries and emerging themes that illustrate
the ubiquity and versatility of cyclic dinucleotide function at the
transcriptional and post-translational levels and, in particular, on insights
gained through mechanistic structure-function analyses.