Gene Rv2386c (trpE2)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in the biogenesis of the hydroxyphenyloxazoline-containing siderophore mycobactins. Possibly plays a role in the conversion of chorismate to salicilate (the starter unit for mycobactin siderophore construction). |
| Product | Isochorismate synthase MbtI |
| Comments | Rv2386c, (MTCY253.35), len: 450 aa. mbtI, isochorismate synthase (see citations below), similar to Q9X9I8|IRP9 salicylate synthetase from Yersinia enterocolitica (434 aa), FASTA scores: opt: 887, E(): 7.5e-48, (37.45% identity in 422 aa overlap); and similar in C-terminal region to many anthranilate synthases component I e.g. Q9Z4W7|TRPE_STRCO|SCE8.07c from Streptomyces coelicolor (511 aa), FASTA scores: opt: 509, E(): 3e-24, (40.4% identity in 255 aa overlap); P33975|TRPE_HALVO from Halobacterium volcanii (Haloferax volcanii) (523 aa) FASTA scores: opt: 488, E(): 6.2e-23, (34.2% identity in 298 aa overlap); and similar to Q08653|TRPE_THEMA|TM0142 anthranilate synthase component I from Thermotoga maritima (461 aa), FASTA scores: opt: 478, E(): 2.3e-22, (28.4% identity in 440 aa overlap); etc. Could be belong to the anthranilate synthase component I family. Note that previously known as trpE2, an anthranilate synthase component I. |
| Functional category | Lipid metabolism |
| Proteomics | Identified in the cell membrane fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). |
| Transcriptomics | DNA microarrays indicate repression by iron and IdeR|Rv2711 in M. tuberculosis H37Rv (See Rodriguez et al., 2002). |
| Mutant | Essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Disruption of this gene results in growth defect of H37Rv in vitro, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). Essential gene by Himar1 transposon mutagenesis in H37Rv strain (see Sassetti et al., 2003). Essential gene for in vitro growth of H37Rv, by Himar1 transposon mutagenesis (See Griffin et al., 2011). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 2678653 | 2680005 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2386c|mbtI
VSELSVATGAVSTASSSIPMPAGVNPADLAAELAAVVTESVDEDYLLYECDGQWVLAAGVQAMVELDSDELRVIRDGVTRRQQWSGRPGAALGEAVDRLLLETDQAFGWVAFEFGVHRYGLQQRLAPHTPLARVFSPRTRIMVSEKEIRLFDAGIRHREAIDRLLATGVREVPQSRSVDVSDDPSGFRRRVAVAVDEIAAGRYHKVILSRCVEVPFAIDFPLTYRLGRRHNTPVRSFLLQLGGIRALGYSPELVTAVRADGVVITEPLAGTRALGRGPAIDRLARDDLESNSKEIVEHAISVRSSLEEITDIAEPGSAAVIDFMTVRERGSVQHLGSTIRARLDPSSDRMAALEALFPAVTASGIPKAAGVEAIFRLDECPRGLYSGAVVMLSADGGLDAALTLRAAYQVGGRTWLRAGAGIIEESEPEREFEETCEKLSTLTPYLVARQ
Bibliography
- Quadri LE et al. [1998]. Identification of a Mycobacterium tuberculosis gene cluster encoding the biosynthetic enzymes for assembly of the virulence-conferring siderophore mycobactin. Secondary Function
- De Voss JJ et al. [1999]. Iron acquisition and metabolism by mycobacteria. Review
- Gold B et al. [2001]. The Mycobacterium tuberculosis IdeR is a dual functional regulator that controls transcription of genes involved in iron acquisition, iron storage and survival in macrophages. Regulon
- Rodriguez GM, Voskuil MI, Gold B, Schoolnik GK and Smith I [2002]. ideR, An essential gene in mycobacterium tuberculosis: role of IdeR in iron-dependent gene expression, iron metabolism, and oxidative stress response. Transcriptome
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Manabe YC et al. [2005]. Both Corynebacterium diphtheriae DtxR(E175K) and Mycobacterium tuberculosis IdeR(D177K) are dominant positive repressors of IdeR-regulated genes in M. tuberculosis. Regulon
- Harrison AJ et al. [2006]. The structure of MbtI from Mycobacterium tuberculosis, the first enzyme in the biosynthesis of the siderophore mycobactin, reveals it to be a salicylate synthase. Structure
- Rodrigue S et al. [2007]. Identification of mycobacterial sigma factor binding sites by chromatin immunoprecipitation assays. Regulon
- Zwahlen J et al. [2007]. Structure and mechanism of MbtI, the salicylate synthase from Mycobacterium tuberculosis. Structure
- Griffin JE et al. [2011]. High-resolution phenotypic profiling defines genes essential for mycobacterial growth and cholesterol catabolism. Mutant
- DeJesus MA et al. [2017]. Comprehensive Essentiality Analysis of the Mycobacterium tuberculosis Genome via Saturating Transposon Mutagenesis. Mutant
- Minato Y et al. [2019]. Genomewide Assessment of Mycobacterium tuberculosis Conditionally Essential Metabolic Pathways. Mutant
