Gene Rv3264c (hddC)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in GDP-mannose biosynthesis and biosynthesis of nucleotide-activated glycero-manno-heptose (D-alpha-D pathway): generates GDP-mannose and phosphate from GTP and alpha-D-mannose 1-phosphate. MANB product is needed for all mannosyl glycolipids and polysaccharides which, like rhamnosyl residues, are an important part of the mycobacterium envelope [catalytic activity: alpha-D-mannose 1-phosphate + GTP = GDP-mannose + phosphate]. |
| Product | D-alpha-D-mannose-1-phosphate guanylyltransferase ManB (D-alpha-D-heptose-1-phosphate guanylyltransferase) |
| Comments | Rv3264c, (MTCY71.04c), len: 359 aa. ManB (alternate gene name: hddC), D-alpha-D-mannose-1-phosphate guanylyltransferase (see citations below), equivalent to Q9CCK6|RMLA2|ML0753 putative sugar-phosphate nucleotidyl transferase from Mycobacterium leprae (358 aa), FASTA scores: opt: 2075, E(): 2.7e-115, (86.9% identity in 359 aa overlap). Also similar to others e.g. Q9KZK6|SCE34.20c putative nucleotide phosphorylase from Streptomyces coelicolor (360 aa), FASTA scores: opt: 1314, E(): 2.2e-70, (57.0% identity in 358 aa overlap); Q9KZP4|SC1A8A.08 putative mannose-1-phosphate guanyltransferase from Streptomyces coelicolor (831 aa), FASTA scores: opt: 699, E(): 8.6e-34, (34.45% identity in 354 aa overlap) (only similarity in N-terminus for this one); P74589|SLL1496 mannose-1-phosphate guanyltransferase from Synechocystis sp. strain PCC 6803 (843 aa), FASTA scores: opt: 692, E(): 2.3e-33, (35.1% identity in 342 aa overlap) (only similarity in N-terminus for this one too); BAB59222|TVG0079558 mannose-1-phosphate guanyltransferase from Thermoplasma volcanium (359 aa), FASTA scores: opt: 664, E(): 5.2e-32, (34.6% identity in 338 aa overlap); Q9ZTW5|GMP GDP-mannose pyrophosphorylase from Solanum tuberosum (Potato) (361 aa), FASTA scores: opt: 636, E(): 2.3e-30, (34.65% identity in 361 aa overlap); etc. Belongs to family 2 of mannose-6-phosphate isomerases. Note that previously known as rmlA2. |
| Functional category | Cell wall and cell processes |
| 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 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 de Souza et al., 2011) (See Kelkar et al., 2011). |
| Mutant | Essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). 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). 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 | 3644898 | 3645977 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3264c|manB
LATHQVDAVVLVGGKGTRLRPLTLSAPKPMLPTAGLPFLTHLLSRIAAAGIEHVILGTSYKPAVFEAEFGDGSALGLQIEYVTEEHPLGTGGGIANVAGKLRNDTAMVFNGDVLSGADLAQLLDFHRSNRADVTLQLVRVGDPRAFGCVPTDEEDRVVAFLEKTEDPPTDQINAGCYVFERNVIDRIPQGREVSVEREVFPALLADGDCKIYGYVDASYWRDMGTPEDFVRGSADLVRGIAPSPALRGHRGEQLVHDGAAVSPGALLIGGTVVGRGAEIGPGTRLDGAVIFDGVRVEAGCVIERSIIGFGARIGPRALIRDGVIGDGADIGARCELLSGARVWPGVFLPDGGIRYSSDV
Bibliography
- Ning B et al. [1999]. Purification and properties of mycobacterial GDP-mannose pyrophosphorylase. Homolog Product Biochemistry Function
- Ma Y, Stern RJ, Scherman MS, Vissa VD, Yan W, Jones VC, Zhang F, Franzblau SG, Lewis WH and McNeil MR [2001]. Drug targeting Mycobacterium tuberculosis cell wall synthesis: genetics of dTDP-rhamnose synthetic enzymes and development of a microtiter plate-based screen for inhibitors of conversion of dTDP-glucose to dTDP-rhamnose. Product Biochemistry Function
- Valvano MA, Messner P and Kosma P [2002]. Novel pathways for biosynthesis of nucleotide-activated glycero-manno-heptose precursors of bacterial glycoproteins and cell surface polysaccharides. Review Function
- 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
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- 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
- 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
- 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
