Gene Rv0170 (mceD)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Unknown, but thought to be involved in host cell invasion. |
| Product | Mce-family protein Mce1B |
| Comments | Rv0170, (MTCI28.10), len: 346 aa. Mce1B (alternate gene name: mceD); belongs to 24-membered Mycobacterium tuberculosis Mce protein family (see citations below), highly similar to Mycobacterium tuberculosis proteins O07788|Rv0590|MTCY19H5.32c|mce2B (275 aa); O53968|Rv1967|MTV051.05|mce3B (342 aa); etc. Also highly similar to others e.g. NP_302657.1|NC_002677 putative secreted protein from Mycobacterium leprae (346 aa); CAC12797.1|AL445327 putative secreted protein from Streptomyces coelicolor (354 aa); etc. Contains hydrophobic region in N-terminal 30 residues. In Escherichia coli, N-terminal part is functional and directs export of a leaderless beta-lactamase into the periplasm (see Chubb et al., 1998). Predicted to be an outer membrane protein (See Song et al., 2008). |
| Functional category | Virulence, detoxification, adaptation |
| Proteomics | Identified in the membrane fraction of M. tuberculosis H37Rv using 1D-SDS-PAGE and uLC-MS/MS; predicted transmembrane protein (See Gu et al., 2003). Predicted secreted protein - identified in culture filtrates of M. tuberculosis H37Rv; signal peptide predicted (See Malen et al., 2007). 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; enriched in the membrane fraction and predicted N-terminal signal peptide is uncleaved (See de Souza et al., 2011). |
| Transcriptomics | mRNA identified by SCOTS method, 48h and 110h after infection of cultured human primary macrophages (see Graham & Clark-Curtiss 1999). Also identified by RT-PCR (see Harboe et al., 1999) and by microarray analysis; down-regulated after 24h and 96h of starvation (see Betts et al., 2002). |
| Operon | Rv0169 and Rv0170, Rv0170 and Rv0171 are co-transcribed, by RT-PCR (See Casali et al., 2006). |
| 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). Required for growth in C57BL/6J mouse spleen, by transposon site hybridization (TraSH) in H37Rv (See Sassetti and Rubin, 2003). Required for survival in primary murine macrophages, by transposon site hybridization (TraSH) in H37Rv (See Rengarajan et al., 2005). 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 | 199895 | 200935 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv0170|mce1B
MKITGTVVKLGIVSVVLLFFTVMIIVIFGQMRFDRTNGYTAEFSNVSGLRQGQFVRASGVEIGKVKALHLVDGGRRVRVEFNIDRSVPLYQSTTAQIRYSDLIGNRYVELKRGEGKGANDLLPPGGLIPLSRTSPALDLDALIGGFKPVFRALDPAKVNNIANALITVFQGQGGTINDILDQTAQLTSQIAERDQAIGEVVKNLNIVLDTTVKHRKEFDETVNNLENLITGLRNHSDQLAGGLAHISNGAGTVADLLAENRTLVRKAVSYLDAIQQPVIDQRVELDDLLHKTPTALTALGRANGTYGDFQNFYLCDLQIKWNGFQAGGPVRTVKLFSQPTGRCTPQ
Bibliography
- Arruda S, Bomfim G, Knights R, Huima-Byron T and Riley LW [1993]. Cloning of an M. tuberculosis DNA fragment associated with entry and survival inside cells. Sequence
- Cole ST et al. [1998]. Deciphering the biology of Mycobacterium tuberculosis from the complete genome sequence. Sequence Secondary
- Chubb AJ, Woodman ZL, da Silva Tatley FM, Hoffmann HJ, Scholle RR and Ehlers MR [1998]. Identification of Mycobacterium tuberculosis signal sequences that direct the export of a leaderless beta-lactamase gene product in Escherichia coli. Secretion
- Tekaia F et al. [1999]. Analysis of the proteome of Mycobacterium tuberculosis in silico. Secondary
- Graham JE and Clark-Curtiss JE [1999]. Identification of Mycobacterium tuberculosis RNAs synthesized in response to phagocytosis by human macrophages by selective capture of transcribed sequences (SCOTS). Transcriptome
- Harboe M, Christensen A, Haile Y, Ulvund G, Ahmad S, Mustafa AS and Wiker HG [1999]. Demonstration of expression of six proteins of the mammalian cell entry (mce1) operon of Mycobacterium tuberculosis by anti-peptide antibodies, enzyme-linked immunosorbent assay and reverse transcription-polymerase chain reaction. Product Transcriptome
- Haile Y et al. [2002]. Mycobacterium tuberculosis mammalian cell entry operon (mce) homologs in Mycobacterium other than tuberculosis (MOTT). Homolog Function
- Panigada M et al. [2002]. Identification of a promiscuous T-cell epitope in Mycobacterium tuberculosis Mce proteins. Gene
- 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
- Sassetti CM and Rubin EJ [2003]. Genetic requirements for mycobacterial survival during infection. Mutant
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- Rengarajan J et al. [2005]. Genome-wide requirements for Mycobacterium tuberculosis adaptation and survival in macrophages. Mutant
- Casali N, White AM and Riley LW [2006]. Regulation of the Mycobacterium tuberculosis mce1 operon. Operon
- Målen H et al. [2007]. Comprehensive analysis of exported proteins from Mycobacterium tuberculosis H37Rv. Proteomics
- Song H, Sandie R, Wang Y, Andrade-Navarro MA and Niederweis M [2008]. Identification of outer membrane proteins of Mycobacterium tuberculosis. Localization
- 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
