Enzymes
| UniProtKB help_outline | 297 proteins |
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- Name help_outline (S)-2,3-dihydrodipicolinate Identifier CHEBI:30620 Charge -2 Formula C7H5NO4 InChIKeyhelp_outline UWOCFOFVIBZJGH-YFKPBYRVSA-L SMILEShelp_outline [O-]C(=O)[C@@H]1CC=CC(=N1)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline NADP+ Identifier CHEBI:58349 Charge -3 Formula C21H25N7O17P3 InChIKeyhelp_outline XJLXINKUBYWONI-NNYOXOHSSA-K SMILEShelp_outline NC(=O)c1ccc[n+](c1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](OP([O-])([O-])=O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,257 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline dipicolinate Identifier CHEBI:36167 (Beilstein: 4137659) help_outline Charge -2 Formula C7H3NO4 InChIKeyhelp_outline WJJMNDUMQPNECX-UHFFFAOYSA-L SMILEShelp_outline [O-]C(=O)c1cccc(n1)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 H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,245 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline NADPH Identifier CHEBI:57783 (Beilstein: 10411862) help_outline Charge -4 Formula C21H26N7O17P3 InChIKeyhelp_outline ACFIXJIJDZMPPO-NNYOXOHSSA-J SMILEShelp_outline NC(=O)C1=CN(C=CC1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](OP([O-])([O-])=O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,251 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:47092 | RHEA:47093 | RHEA:47094 | RHEA:47095 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Cloning, DNA sequence, functional analysis and transcriptional regulation of the genes encoding dipicolinic acid synthetase required for sporulation in Bacillus subtilis.
Daniel R.A., Errington J.
Dipicolinic acid (DPA) is a small polar molecule that accumulates to high concentrations in bacterial endospores, and is thought to play a role in spore heat resistance, or the maintenance of heat resistance. Previous work has shown that mutations in the spoVF locus of Bacillus subtilis prevent th ... >> More
Dipicolinic acid (DPA) is a small polar molecule that accumulates to high concentrations in bacterial endospores, and is thought to play a role in spore heat resistance, or the maintenance of heat resistance. Previous work has shown that mutations in the spoVF locus of Bacillus subtilis prevent the formation of DPA, and give rise to heat-sensitive spores. Addition of exogenous DPA during spore development led to the restoration of heat resistance. This suggested that the spoVF locus encoded dipicolinic acid synthetase, the enzyme thought to catalyse the single reaction needed to synthesise DPA from dihydroxydipicolinic acid, an intermediate in the lysine biosynthetic pathway. We have now cloned and sequenced the spoVF locus of Bacillus subtilis and show that it comprises two coordinately regulated genes, now designated dpaA and dpaB. Expression of fragments of the dpa operon in Escherichia coli has shown that the two gene products together specify DPA synthetase activity. The promoter of the dpa operon, which lies just upstream of the first gene, has been identified by primer extension analysis. Sequences in this region show strong sequence similarity to several promoters recognized by the sigma K form of RNA polymerase. Transcription from this promoter was detected four hours after the onset of sporulation, at about the same time that sigma K activity is known to appear. Furthermore, transcription was abolished by mutations in a series of genes that are known to be required for the synthesis of active sigma K. These results are in accordance with previous work indicating that DPA synthetase activity was present only during the late stages of sporulation and specifically in the mother cell compartment. Transcription was enhanced by a gerE mutation, indicating that, like the previously described cotA gene, spoVF is negatively regulated by GerE. The mother-cell-specific synthesis of an enzyme responsible for a compound that accumulates to high concentrations in the prespore raises interesting questions about intercellular transport mechanisms. << Less
J. Mol. Biol. 232:468-483(1993) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.