Gene Rv3291c
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in transcriptional mechanism. |
| Product | Probable transcriptional regulatory protein LrpA (Lrp/AsnC-family) |
| Comments | Rv3291c, (MTCY71.31c), len: 150 aa. Probable lrpA, transcriptional regulator Lrp/AsnC-family, similar to other regulatory proteins e.g. Q9RKY4|SC6D7.14 from Streptomyces coelicolor (165 aa), FASTA scores: opt: 503, E(): 9.1e-26, (50.35% identity in 143 aa overlap); Q9KYP0|SCD69.13 from Streptomyces coelicolor (167 aa), FASTA scores: opt: 310, E(): 2.7e-13, (37.2% identity in 129 aa overlap); BAB50701|MLL3910 from Rhizobium loti (Mesorhizobium loti) (152 aa), FASTA scores: opt: 282, E(): 1.6e-11, (39.55% identity in 129 aa overlap); O87635|LRP_KLEAE from Klebsiella aerogenes (163 aa), FASTA scores: opt: 279, E(): 2.5e-11, (38.1% identity in 147 aa overlap); etc. Contains helix-turn-helix motif at aa 22-43 (+3.94 SD). Could belong to the Lrp/AsnC family of transcriptional regulators. |
| Functional category | Regulatory proteins |
| Proteomics | Identified by mass spectrometry in whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate or membrane protein fraction (See de Souza et al., 2011). Translational start site supported by proteomics data (See de Souza et al., 2011). |
| Transcriptomics | mRNA identified by microarray analysis and up-regulated after 4h, 24h and 96h of starvation (see citation below). |
| Mutant | Non-essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Non-essential gene for in vitro growth of H37Rv, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). Non 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 | 3671845 | 3672297 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3291c|lrpA
MNEALDDIDRILVRELAADGRATLSELATRAGLSVSAVQSRVRRLESRGVVQGYSARINPEAVGHLLSAFVAITPLDPSQPDDAPARLEHIEEVESCYSVAGEESYVLLVRVASARALEDLLQRIRTTANVRTRSTIILNTFYSDRQHIP
Bibliography
- Betts JC et al. [2002]. Evaluation of a nutrient starvation model of Mycobacterium tuberculosis persistence by gene and protein expression profiling. Transcriptome
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Shrivastava T et al. [2004]. Cloning, expression, purification and crystallization of a transcriptional regulatory protein (Rv3291c) from Mycobacterium tuberculosis H37Rv. Structure
- Shrivastava T et al. [2007]. Mechanistic insights from the crystal structures of a feast/famine regulatory protein from Mycobacterium tuberculosis H37Rv. Structure
- Reddy MC et al. [2008]. Crystal structure of Mycobacterium tuberculosis LrpA, a leucine-responsive global regulator associated with starvation response. Structure
- de Souza GA et al. [2011]. Proteogenomic analysis of polymorphisms and gene annotation divergences in prokaryotes using a clustered mass spectrometry-friendly database. Proteomics Sequence
- 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
- Minato Y et al. [2019]. Genomewide Assessment of Mycobacterium tuberculosis Conditionally Essential Metabolic Pathways. Mutant
