Gene Rv3002c (ilvH)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in valine and isoleucine biosynthesis (at the first step) [catalytic activity: 2-acetolactate + CO(2) = 2-pyruvate]. |
| Product | Probable acetolactate synthase (small subunit) IlvN (acetohydroxy-acid synthase) (AHAS) (ALS) |
| Comments | Rv3002c, (MT3082, MTV012.16c), len: 168 aa. Probable ilvN (alternate gene name: ilvH), acetolactate synthase, small subunit, equivalent or highly similar to others e.g. O33113|ILVH_MYCLE|MLCB637.21 from Mycobacterium leprae (169 aa), FASTA scores: opt: 843, E(): 5.1e-47, (83.5% identity in 164 aa overlap); Q59499|ILVH_MYCAV|ILVN from Mycobacterium avium (167 aa), FASTA scores: opt: 798, E(): 3.7e-44, (81.05% identity in 169 aa overlap); Q9Z566|ILVN from Streptomyces coelicolor (174 aa), FASTA scores: opt: 678, E(): 1.7e-36, (64.8% identity in 159 aa overlap); etc. Belongs to the acetolactate synthase small subunit family. |
| 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). |
| Transcriptomics | mRNA identified by microarray analysis and down-regulated after 4h, 24h and 96h of starvation (see citation below). |
| Mutant | Non-essential gene for in vitro growth of H37Rv, 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). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 3360624 | 3361130 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3002c|ilvN
MSPKTHTLSVLVEDKPGVLARVAALFSRRGFNIESLAVGATECKDRSRMTIVVSAEDTPLEQITKQLNKLINVIKIVEQDDEHSVSRELALIKVQADAGSRSQVIEAVNLFRANVIDVSPESLTVEATGNRGKLEALLRVLEPFGIREIAQSGMVSLSRGPRGIGTAK
Bibliography
- 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
- 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
- DeJesus MA et al. [2017]. Comprehensive Essentiality Analysis of the Mycobacterium tuberculosis Genome via Saturating Transposon Mutagenesis. Mutant
