Gene Rv0757
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in transcriptional mechanism. Part of the two component regulatory system PHOP/PHOQ. This protein is thought to be a positive regulator for the phosphate regulon, required for intracellular growth. Transcription of this operon is positively regulated by PHOB and PHOR|Rv0758 when phosphate is limited. |
| Product | Possible two component system response transcriptional positive regulator PhoP |
| Comments | Rv0757, (MTCY369.02), len: 247 aa. Possible phoP, two component system response phosphate regulon transcriptional regulator (see citations below), highly similar to various transcriptional regulators e.g. CAC32360.1|AL583945 putative two component system response regulator from Streptomyces coelicolor (271 aa); T45446 probable two-component response regulator from Mycobacterium leprae (253 aa); and similar to phoP proteins e.g. P13792|PHOP_BACSU alkaline phosphatase synthesis transcription regulatory protein from Bacillus subtilis (240 aa), FASTA scores: opt: 594, E(): 2.3e-33, (41.0% identity in 234 aa overlap); etc. Also highly similar to Rv3765c from Mycobacterium tuberculosis (234 aa), Rv1033c (257 aa), RV0903c|MTCY31.31c|Q10531 (236 aa), FASTA score: (45.4% identity in 229 aa overlap); MTCY10G2_16 and MTU88959_1. |
| Functional category | Regulatory proteins |
| Proteomics | Identified in the membrane fraction of M. tuberculosis H37Rv using 1D-SDS-PAGE and uLC-MS/MS (See Gu et al., 2003). Identified in the cell membrane fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Identified in the membrane fraction of M. tuberculosis H37Rv using nanoLC-MS/MS (See Xiong et al., 2005). 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 DNA microarray analysis and up-regulated at high temperatures (see Stewart et al., 2002). |
| Operon | Rv0757 and Rv0758 are co-transcribed, by RT-PCR (See Gonzalo-Asensio et al., 2008). |
| 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). Slow growth mutant by Himar1-based 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). phoPR-locus mutant is attenuated in mice and in human and murine macrophages and has impaired synthesis of methyl-branched fatty acid-containing acyltrehaloses (See Perez et al., 2001; Gonzalo Asensio et al., 2006; Walters et al., 2006). PhoP but not PhoR is required for synthesis of methyl-branched fatty acid-containing acyltrehaloses (See Gonzalo Asensio et al., 2006). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 851608 | 852351 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv0757|phoP
MRKGVDLVTAGTPGENTTPEARVLVVDDEANIVELLSVSLKFQGFEVYTATNGAQALDRARETRPDAVILDVMMPGMDGFGVLRRLRADGIDAPALFLTARDSLQDKIAGLTLGGDDYVTKPFSLEEVVARLRVILRRAGKGNKEPRNVRLTFADIELDEETHEVWKAGQPVSLSPTEFTLLRYFVINAGTVLSKPKILDHVWRYDFGGDVNVVESYVSYLRRKIDTGEKRLLHTLRGVGYVLREPR
Bibliography
- Perez E, Samper S, Bordas Y, Guilhot C, Gicquel B and Martin C [2001]. An essential role for phoP in Mycobacterium tuberculosis virulence. Mutant
- Ludwiczak P et al. [2002]. Mycobacterium tuberculosis phoP mutant: lipoarabinomannan molecular structure. Mutant
- Stewart GR et al. [2002]. Dissection of the heat-shock response in Mycobacterium tuberculosis using mutants and microarrays. Transcriptome Mutant Regulation
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Xiong Y, Chalmers MJ, Gao FP, Cross TA and Marshall AG [2005]. Identification of Mycobacterium tuberculosis H37Rv integral membrane proteins by one-dimensional gel electrophoresis and liquid chromatography electrospray ionization tandem mass spectrometry. Proteomics
- Gonzalo Asensio J, Maia C, Ferrer NL, Barilone N, Laval F, Soto CY, Winter N, Daffe M, Gicquel B, Martin C and Jackson M [2006]. The virulence-associated two-component PhoP-PhoR system controls the biosynthesis of polyketide-derived lipids in Mycobacterium tuberculosis. Mutant
- Walters SB et al. [2006]. The Mycobacterium tuberculosis PhoPR two-component system regulates genes essential for virulence and complex lipid biosynthesis. Mutant
- Wang S, Engohang-Ndong J and Smith I [2007]. Structure of the DNA-binding domain of the response regulator PhoP from Mycobacterium tuberculosis. Structure
- Gonzalo-Asensio J et al. [2008]. The Mycobacterium tuberculosis phoPR operon is positively autoregulated in the virulent strain H37Rv. Operon
- Målen H et al. [2010]. Definition of novel cell envelope associated proteins in Triton X-114 extracts of Mycobacterium tuberculosis H37Rv. Proteomics
- Griffin JE et al. [2011]. High-resolution phenotypic profiling defines genes essential for mycobacterial growth and cholesterol catabolism. Mutant
- 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
