Enzymes
| UniProtKB help_outline | 1 proteins |
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- Name help_outline 5'-pApG-3' Identifier CHEBI:142752 Charge -3 Formula C20H23N10O14P2 InChIKeyhelp_outline SXJAFMAZBFVAJD-INFSMZHSSA-K SMILEShelp_outline O([C@@H]1[C@H](O[C@@H](N2C=3N=CN=C(N)C3N=C2)[C@@H]1O)COP(=O)([O-])[O-])P(OC[C@H]4O[C@@H](N5C=6N=C(NC(=O)C6N=C5)N)[C@@H]([C@@H]4O)O)(=O)[O-] 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,204 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 5'-ApG-3' Identifier CHEBI:142753 Charge -1 Formula C20H24N10O11P InChIKeyhelp_outline LWBLDUTUVIXFJE-INFSMZHSSA-M SMILEShelp_outline O([C@@H]1[C@H](O[C@@H](N2C=3N=CN=C(N)C3N=C2)[C@@H]1O)CO)P(OC[C@H]4O[C@@H](N5C=6N=C(NC(=O)C6N=C5)N)[C@@H]([C@@H]4O)O)(=O)[O-] 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline phosphate Identifier CHEBI:43474 Charge -2 Formula HO4P InChIKeyhelp_outline NBIIXXVUZAFLBC-UHFFFAOYSA-L SMILEShelp_outline OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 992 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:58804 | RHEA:58805 | RHEA:58806 | RHEA:58807 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Identification and characterization of phosphodiesterases that specifically degrade 3'3'-cyclic GMP-AMP.
Gao J., Tao J., Liang W., Zhao M., Du X., Cui S., Duan H., Kan B., Su X., Jiang Z.
Cyclic dinucleotides act as intracellular second messengers, modulating a variety of cellular activities including innate immune activation. Although phosphodiesterases (PDEs) hydrolyzing c-di-GMP and c-di-AMP have been identified, no PDEs for cGAMPs have been reported. Here we identified the firs ... >> More
Cyclic dinucleotides act as intracellular second messengers, modulating a variety of cellular activities including innate immune activation. Although phosphodiesterases (PDEs) hydrolyzing c-di-GMP and c-di-AMP have been identified, no PDEs for cGAMPs have been reported. Here we identified the first three cGAMP-specific PDEs in V. cholerae (herein designated as V-cGAP1/2/3). V-cGAPs are HD-GYP domain-containing proteins and specifically break 3'3'-cGAMP, but not other forms of cGAMP. 3'3'-cGAMP is first linearized by all three V-cGAPs to produce 5'-pApG, which is further hydrolyzed into 5'-ApG by V-cGAP1. In this two-step reaction, V-cGAP1 functions as both a PDE and a 5'-nucleotidase. In vivo experiments demonstrated that V-cGAPs play non-redundant roles in cGAMP degradation. The high specificity of V-cGAPs on 3'3'-cGAMP suggests the existence of specific PDEs for other cGAMPs, including 2'3'-cGAMP in mammalian cells. The absolute requirement of the GYP motif for 3'3'-cGAMP degradation suggests that HD domain-containing PDEs in eukaryotes are probably unable to hydrolyze cGAMPs. The fact that all V-cGAPs attack 3'3'-cGAMP on one specific phosphodiester bond suggests that PDEs for other cGAMPs would utilize a similar strategy. These results will provide valuable information for identification and characterization of mammalian 2'3'-cGAMP-specific PDEs in future studies. << Less
Cell Res. 25:539-550(2015) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.