Gene Rv2350c (mpcB)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Hydrolyzes sphingomyelin in addition to phosphatidylcholine. Probable virulence factor implicated in the pathogenesis of Mycobacterium tuberculosis at the level of intracellular survival, by the alteration of cell signaling events or by direct cytotoxicity [catalytic activity: a phosphatidylcholine + H(2)O = 1,2- diacylglycerol + choline phosphate]. |
| Product | Membrane-associated phospholipase C 2 PlcB |
| Comments | Rv2350c, (MT2415, MTCY98.19c), len: 512 aa. plcB (alternate gene name: mpcB), membrane-associated phospolipase C 2 (see citations below), similar to other precursors of several phospolipases C e.g. P15713|PHLN_PSEAE|PA3319 non-hemolytic phospholipase C precursor from Pseudomonas aeruginosa (692 aa), FASTA scores: opt: 885, E(): 2.3e-44, (38.5% identity in 525 aa overlap); P06200|PHLC_PSEAE hemolytic phospholipase C precursor from Pseudomonas aeruginosa (730 aa), FASTA scores: opt: 639, E(): 6.3e-30, (537 aa overlap); Q9RGS8 non-hemolytic phospholipase C from Pseudomonas aeruginosa (700 aa), FASTA scores: opt: 864, E(): 3.9e-43, (39.2% identity in 528 aa overlap); etc. Also highly similar to others from Mycobacterium tuberculosis e.g. Q50560|Rv2351c|PLCA|MTP40|MT2416|MTCY98.20c phospholipase C 1 (520 aa), FASTA scores: opt: 2788, E(): 4.5e-156, (75.5% identity in 514 aa overlap); Q9XB13|PLCD|Rv1755c|MT1799|MTCY28.21C phospholipase C 4 (514 aa), FASTA scores: opt: 2623, E(): 2.1e-146, (71.5% identity in 512 aa overlap); P95245|PLCC|Rv2349c|MT2414|MTCY98.18c phospholipase C 3 (508 aa), FASTA scores: opt: 2474, E(): 1.1e-137, (67.65% identity in 513 aa overlap); etc. Belongs to the bacterial phospholipase C family. Supposed membrane-associated, at the extracellular side. Substrate of Tat pathway (See McDonough et al., 2008). |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | 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). |
| 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 provides a growth advantage for in vitro growth of H37Rv, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). Non-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 | 2628781 | 2630319 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2350c|plcB
MTRRQFFAKAAAATTAGAFMSLAGPIIEKAYGAGPCPGHLTDIEHIVLLMQENRSFDHYFGTLSDTRGFDDTTPPVVFAQSGWNPMTQAVDPAGVTLPYRFDTTRGPLVAGECVNDPDHSWIGMHNSWNGGANDNWLPAQVPFSPLQGNVPVTMGFYTRRDLPIHYLLADTFTVCDGYFCSLLGGTTPNRLYWMSAWIDPDGTDGGPVLIEPNIQPLQHYSWRIMPENLEDAGVSWKVYQNKLLGALNNTVVGYNGLVNDFKQAADPRSNLARFGISPTYPLDFAADVRNNRLPKVSWVLPGFLLSEHPAFPVNVGAVAIVDALRILLSNPAVWEKTALIVNYDENGGFFDHVVPPTPPPGTPGEFVTVPDIDSVPGSGGIRGPIGLGFRVPCLVISPYSRGPLMVHDTFDHTSTLKLIRARFGVPVPNLTAWRDATVGDMTSTFNFAAPPNPSKPNLDHPRLNALPKLPQCVPNAVLGTVTKTAIPYRVPFPQSMPTQETAPTRGIPSGLC
Bibliography
- Johansen KA et al. [1996]. Biochemical and molecular analysis of phospholipase C and phospholipase D activity in mycobacteria. Biochemistry
- Parish T et al. [2000]. Use of a flexible cassette method to generate a double unmarked Mycobacterium tuberculosis tlyA plcABC mutant by gene replacement. Mutant
- Miller BH et al. [2000]. Evaluation of Mycobacterium tuberculosis genes involved in resistance to killing by human macrophages. Secondary Product
- Vera-Cabrera L et al. [2001]. Phospholipase region of Mycobacterium tuberculosis is a preferential locus for IS6110 transposition. Sequence Secondary
- Stonehouse MJ et al. [2002]. A novel class of microbial phosphocholine-specific phospholipases C. Homolog Product Biochemistry
- Raynaud C, Guilhot C, Rauzier J, Bordat Y, Pelicic V, Manganelli R, Smith I, Gicquel B and Jackson M [2002]. Phospholipases C are involved in the virulence of Mycobacterium tuberculosis. Mutant Function
- McDonough JA et al. [2008]. Identification of functional Tat signal sequences in Mycobacterium tuberculosis proteins. Biochemistry
- 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
