Enzymes
| UniProtKB help_outline | 2 proteins |
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- Name help_outline a long-chain fatty acyl-CoA Identifier CHEBI:83139 Charge -4 Formula C22H31N7O17P3SR SMILEShelp_outline CC(C)(COP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP([O-])([O-])=O)n1cnc2c(N)ncnc12)[C@@H](O)C(=O)NCCC(=O)NCCSC([*])=O 2D coordinates Mol file for the small molecule Search links Involved in 657 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline α,α-trehalose Identifier CHEBI:16551 (CAS: 99-20-7) help_outline Charge 0 Formula C12H22O11 InChIKeyhelp_outline HDTRYLNUVZCQOY-LIZSDCNHSA-N SMILEShelp_outline OC[C@H]1O[C@H](O[C@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)[C@H](O)[C@@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 14 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline a 2-O-(long-chain fatty acyl)-α,α-trehalose Identifier CHEBI:142477 Charge 0 Formula C13H21O12R SMILEShelp_outline [C@H]1([C@@H]([C@H]([C@@H]([C@H](O1)CO)O)O)O)O[C@@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)O)OC(*)=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 CoA Identifier CHEBI:57287 (Beilstein: 11604429) help_outline Charge -4 Formula C21H32N7O16P3S InChIKeyhelp_outline RGJOEKWQDUBAIZ-IBOSZNHHSA-J SMILEShelp_outline CC(C)(COP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP([O-])([O-])=O)n1cnc2c(N)ncnc12)[C@@H](O)C(=O)NCCC(=O)NCCS 2D coordinates Mol file for the small molecule Search links Involved in 1,511 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:58044 | RHEA:58045 | RHEA:58046 | RHEA:58047 | |
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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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PapA3 is an acyltransferase required for polyacyltrehalose biosynthesis in Mycobacterium tuberculosis.
Hatzios S.K., Schelle M.W., Holsclaw C.M., Behrens C.R., Botyanszki Z., Lin F.L., Carlson B.L., Kumar P., Leary J.A., Bertozzi C.R.
Mycobacterium tuberculosis possesses an unusual cell wall that is replete with virulence-enhancing lipids. One cell wall molecule unique to pathogenic M. tuberculosis is polyacyltrehalose (PAT), a pentaacylated, trehalose-based glycolipid. Little is known about the biosynthesis of PAT, although it ... >> More
Mycobacterium tuberculosis possesses an unusual cell wall that is replete with virulence-enhancing lipids. One cell wall molecule unique to pathogenic M. tuberculosis is polyacyltrehalose (PAT), a pentaacylated, trehalose-based glycolipid. Little is known about the biosynthesis of PAT, although its biosynthetic gene cluster has been identified and found to resemble that of the better studied M. tuberculosis cell wall component sulfolipid-1. In this study, we sought to elucidate the function of papA3, a gene from the PAT locus encoding a putative acyltransferase. To determine whether PapA3 participates in PAT assembly, we expressed the protein heterologously and evaluated its acyltransferase activity in vitro. The purified enzyme catalyzed the sequential esterification of trehalose with two palmitoyl groups, generating a diacylated product similar to the 2,3-diacyltrehalose glycolipids of M. tuberculosis. Notably, PapA3 was selective for trehalose; no activity was observed with other structurally related disaccharides. Disruption of the papA3 gene from M. tuberculosis resulted in the loss of PAT from bacterial lipid extracts. Complementation of the mutant strain restored PAT production, demonstrating that PapA3 is essential for the biosynthesis of this glycolipid in vivo. Furthermore, we determined that the PAT biosynthetic machinery has no cross-talk with that for sulfolipid-1 despite their related structures. << Less
J. Biol. Chem. 284:12745-12751(2009) [PubMed] [EuropePMC]
This publication is cited by 3 other entries.