Gene Rv1926c (mpb63)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Unknown |
| Product | Immunogenic protein Mpt63 (antigen Mpt63/MPB63) (16 kDa immunoprotective extracellular protein) |
| Comments | Rv1926c, (MT1977, MTCY09F9.38), len: 159 aa. Mpt63 (alternate gene name: mpb63), immunogenic protein (see citations below), identical to MPT63|MPB63 from Mycobacterium bovis (159 aa). Exported protein containing a N-terminal signal sequence: see notes below about proteomics. Predicted possible vaccine candidate (See Zvi et al., 2008). |
| Functional category | Cell wall and cell processes |
| Proteomics | Corresponds to spots 5_44 and 5_31 identified in culture supernatant by proteomics at the Max Planck Institute for Infection Biology, Berlin, Germany (see proteomics citations from 1999), and spot 1926c identified in short term culture filtrate by proteomics at the Statens Serum Institute (Denmark) (see proteomics citations from 2000). Identified in the culture supernatant of M. tuberculosis H37Rv using mass spectrometry (See Mattow et al., 2003). Predicted secreted protein - identified in culture filtrates of M. tuberculosis H37Rv; signal peptide predicted and cleavable signal sequence confirmed experimentally (See Malen et al., 2007). Identified in the culture filtrate of M. tuberculosis H37Rv using LC-MS/MS; antigen recognized by serum pool from tuberculosis patients (See Malen et al., 2008). Identified by mass spectrometry in Triton X-114 extracts of M. tuberculosis H37Rv (See Malen et al., 2010). Identified by mass spectrometry in the culture filtrate, membrane protein fraction, and whole cell lysates of M. tuberculosis H37Rv (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 by Himar1 transposon mutagenesis in H37Rv strain (see Sassetti et al., 2003). 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 | 2178957 | 2179436 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv1926c|mpt63
MKLTTMIKTAVAVVAMAAIATFAAPVALAAYPITGKLGSELTMTDTVGQVVLGWKVSDLKSSTAVIPGYPVAGQVWEATATVNAIRGSVTPAVSQFNARTADGINYRVLWQAAGPDTISGATIPQGEQSTGKIYFDVTGPSPTIVAMNNGMEDLLIWEP
Bibliography
- Nagai S et al. [1991]. Isolation and partial characterization of major protein antigens in the culture fluid of Mycobacterium tuberculosis. Secretion Product Secondary
- Horwitz MA et al. [1995]. Protective immunity against tuberculosis induced by vaccination with major extracellular proteins of Mycobacterium tuberculosis. Secretion Product Function Secondary
- Harth G et al. [1997]. High-level heterologous expression and secretion in rapidly growing nonpathogenic mycobacteria of four major Mycobacterium tuberculosis extracellular proteins considered to be leading vaccine candidates and drug targets. Secretion Product Biochemistry
- Manca C et al. [1997]. Molecular cloning, purification, and serological characterization of MPT63, a novel antigen secreted by Mycobacterium tuberculosis. Secretion Product Secondary
- Jungblut PR, Schaible UE, Mollenkopf HJ, Zimny-Arndt U, Raupach B, Mattow J, Halada P, Lamer S, Hagens K and Kaufmann SH [1999]. Comparative proteome analysis of Mycobacterium tuberculosis and Mycobacterium bovis BCG strains: towards functional genomics of microbial pathogens. Proteomics
- Mollenkopf HJ et al. [1999]. A dynamic two-dimensional polyacrylamide gel electrophoresis database: the mycobacterial proteome via Internet. Proteomics
- Rosenkrands I et al. [2000]. Towards the proteome of Mycobacterium tuberculosis. Proteomics
- Rosenkrands I, Weldingh K, Jacobsen S, Hansen CV, Florio W, Gianetri I and Andersen P [2000]. Mapping and identification of Mycobacterium tuberculosis proteins by two-dimensional gel electrophoresis, microsequencing and immunodetection. Proteomics
- Goulding CW et al. [2002]. Crystal structure of a major secreted protein of Mycobacterium tuberculosis-MPT63 at 1.5-A resolution. Structure
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Dahl JL et al. [2003]. The role of RelMtb-mediated adaptation to stationary phase in long-term persistence of Mycobacterium tuberculosis in mice. Regulon
- Mattow J, Schaible UE, Schmidt F, Hagens K, Siejak F, Brestrich G, Haeselbarth G, Muller EC, Jungblut PR and Kaufmann SH [2003]. Comparative proteome analysis of culture supernatant proteins from virulent Mycobacterium tuberculosis H37Rv and attenuated M. bovis BCG Copenhagen. Proteomics
- Målen H et al. [2007]. Comprehensive analysis of exported proteins from Mycobacterium tuberculosis H37Rv. Proteomics
- Zvi A et al. [2008]. Whole genome identification of Mycobacterium tuberculosis vaccine candidates by comprehensive data mining and bioinformatic analyses. Immunology
- Malen H, Softeland T and Wiker HG [2008]. Antigen analysis of Mycobacterium tuberculosis H37Rv culture filtrate proteins. Proteomics
- 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
