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Enzymatic Syntheses and Applications of Fluorescent Cyclic Dinucleotides.


ABSTRACT: Bacterial cyclic dinucleotides (CDNs) play important roles in regulating biofilm formation, motility and virulence. In eukaryotic cells, theses bacterial CDNs are recognized as pathogen-associated molecular patterns (PAMPs) and trigger an innate immune response. We report the photophysical analyses of a novel group of enzymatically synthesized emissive CDN analogues comprised of two families of isomorphic ribonucleotides. The highly favorable photophysical features of the CDN analogues, when compared to their non-emissive natural counterparts, are used to monitor in real time the dinucleotide cyclase-mediated synthesis and phosphodiesterase (PDE)-mediated hydrolysis of homodimeric and mixed CDNs, providing effective means to probe the activities of two classes of bacterial enzymes and insight into their biomolecular recognition and catalytic features.

SUBMITTER: Li Y 

PROVIDER: S-EPMC7220823 | biostudies-literature |

REPOSITORIES: biostudies-literature

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