Enzymes
| UniProtKB help_outline | 2 proteins |
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- Name help_outline (2R)-2-O-(6-phospho-α-D-mannosyl)-glycerate Identifier CHEBI:60331 Charge -3 Formula C9H14O12P InChIKeyhelp_outline BOLXAGHGKNGVBE-MTXRGOKVSA-K SMILEShelp_outline OC[C@@H](O[C@H]1O[C@H](COP([O-])([O-])=O)[C@@H](O)[C@H](O)[C@@H]1O)C([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 6,048 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline (R)-glycerate Identifier CHEBI:16659 (Beilstein: 6114954) help_outline Charge -1 Formula C3H5O4 InChIKeyhelp_outline RBNPOMFGQQGHHO-UWTATZPHSA-M SMILEShelp_outline OC[C@@H](O)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 22 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline α-D-mannose 6-phosphate Identifier CHEBI:60332 (Beilstein: 5854714) help_outline Charge -2 Formula C6H11O9P InChIKeyhelp_outline NBSCHQHZLSJFNQ-PQMKYFCFSA-L SMILEShelp_outline O[C@H]1O[C@H](COP([O-])([O-])=O)[C@@H](O)[C@H](O)[C@@H]1O 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
Cross-references
| RHEA:27866 | RHEA:27867 | RHEA:27868 | RHEA:27869 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Phosphotransferase-mediated transport of the osmolyte 2-O-alpha-mannosyl-D-glycerate in Escherichia coli occurs by the product of the mngA (hrsA) gene and is regulated by the mngR (farR) gene product acting as repressor.
Sampaio M.-M., Chevance F., Dippel R., Eppler T., Schlegel A., Boos W., Lu Y.-J., Rock C.O.
2-O-alpha-mannosyl-D-glycerate (MGs) has been recognized as an osmolyte in hyperthermophilic but not mesophilic prokaryotes. We report that MG is taken up and utilized as sole carbon source by Escherichia coli K12, strainMC4100. Uptake is mediated by the P-enolpyruvate-dependent phosphotransferase ... >> More
2-O-alpha-mannosyl-D-glycerate (MGs) has been recognized as an osmolyte in hyperthermophilic but not mesophilic prokaryotes. We report that MG is taken up and utilized as sole carbon source by Escherichia coli K12, strainMC4100. Uptake is mediated by the P-enolpyruvate-dependent phosphotransferase system with the MG-inducible HrsA (now called MngA) protein as its specific EIIABC complex. The apparent Km of MG uptake in induced cells was 10 microm, and the Vmax was 0.65 nmol/min/10(9) cells. Inverted membrane vesicles harboring plasmid-encoded MngA phosphorylated MG in a P-enolpyruvate-dependent manner. A deletion mutant in mngA was devoid of MG transport but is complemented by a plasmid harboring mngA. Uptake of MG in MC4100 also caused induction of a regulon specifying the uptake and the metabolism of galactarate and glucarate controlled by the CdaR activator. The ybgG gene (now called mngB) the gene immediately downstream of mngA encodes a protein with alpha-mannosidase activity. farR, the gene upstream of mngA (now called mngR) had previously been characterized as a fatty acyl-responsive regulator; however, deletion of mngR resulted in the up-regulation of only two genes, mngA and mngB. The mngR deletion caused constitutive MG transport that became MG-inducible after transformation with plasmid expressed mngR. Thus, MngR is the regulator (repressor) of the MG transport/metabolism system. Thus, the mngR mngA mngB gene cluster encodes an MG utilizing system. << Less
J. Biol. Chem. 279:5537-5548(2004) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.