Gene Rv2987c
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in leucine biosynthesis (at the second step) [catalytic activity: 3-isopropylmalate = 2-isopropylmaleate + H(2)O (also catalyses 2-isopropylmaleate + H(2)O = 3-hydroxy-4-methyl-3-carboxypentanone)]. |
| Product | Probable 3-isopropylmalate dehydratase (small subunit) LeuD (isopropylmalate isomerase) (alpha-IPM isomerase) (IPMI) |
| Comments | Rv2987c, (MTV012.01c), len: 198 aa. Probable leuD, 3-isopropylmalate dehydratase, small subunit, equivalent to O33124|LEUD_MYCLE 3-isopropylmalate dehydratase small subunit from Mycobacterium leprae (198 aa), FASTA scores: opt: 1155, E(): 4.2e-72, (87.75% identity in 196 aa overlap). Also highly similar to many e.g. O86535|LEUD_STRCO from Streptomyces coelicolor (197 aa), FASTA scores: opt: 765, E(): 2.6e-45, (59.0% identity in 195 aa overlap); P04787|LEUD_SALTY from Salmonella typhimurium (201 aa), FASTA scores: opt: 528, E(): 5.2e-29, (45.05% identity in 191 aa overlap); P30126|LEUD_ECOLI|LEUD|B0071 from Escherichia coli strain K12 (201 aa), FASTA scores: opt: 498, E(): 6e-27, (43.45% identity in 191 aa overlap); etc. |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | Identified in the membrane fraction of M. tuberculosis H37Rv using 1D-SDS-PAGE and uLC-MS/MS (See Gu et al., 2003). Identified by mass spectrometry in Triton X-114 extracts of M. tuberculosis H37Rv (See Malen et al., 2010). Identified by mass spectrometry in the membrane protein fraction and whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate (See de Souza et al., 2011). Translational start site supported by proteomics data (See Kelkar et al., 2011). |
| Transcriptomics | mRNA identified by DNA microarray analysis: up-regulated at high temperatures, and down-regulated after 4h, 24h and 96h of starvation (see citations below). DNA microarrays show higher level of expression in M. tuberculosis H37Rv than in phoP|Rv0757 mutant (See Walters et al., 2006). |
| Mutant | Non-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 | 3344033 | 3344629 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2987c|leuD
MEAFHTHSGIGVPLRRSNVDTDQIIPAVFLKRVTRTGFEDGLFAGWRSDPAFVLNLSPFDRGSVLVAGPDFGTGSSREHAVWALMDYGFRVVISSRFGDIFRGNAGKAGLLAAEVAQDDVELLWKLIEQSPGLEITANLQDRIITAATVVLPFKIDDHSAWRLLEGLDDIALTLRKLDEIEAFEGACAYWKPRTLPAP
Bibliography
- Stewart GR et al. [2002]. Dissection of the heat-shock response in Mycobacterium tuberculosis using mutants and microarrays. Transcriptome Mutant Regulation
- Betts JC et al. [2002]. Evaluation of a nutrient starvation model of Mycobacterium tuberculosis persistence by gene and protein expression profiling. Transcriptome
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Walters SB et al. [2006]. The Mycobacterium tuberculosis PhoPR two-component system regulates genes essential for virulence and complex lipid biosynthesis. Transcriptome
- Målen H et al. [2010]. Definition of novel cell envelope associated proteins in Triton X-114 extracts of Mycobacterium tuberculosis H37Rv. Proteomics
- de Souza GA et al. [2011]. Bacterial proteins with cleaved or uncleaved signal peptides of the general secretory pathway. Proteomics
- Kelkar DS et al. [2011]. Proteogenomic analysis of Mycobacterium tuberculosis by high resolution mass spectrometry. Proteomics Sequence
- 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
