Gene Rv2691 (trkA)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Part of a potassium transport system. |
| Product | TRK system potassium uptake protein CeoB |
| Comments | Rv2691, (MTCY05A6.12), len: 227 aa. CeoB (alternate gene name: trkA), TRK system potassium uptake protein (see citation below), highly similar to others e.g. Q53949|TRKA_STRCO|SC2E9.17c from Streptomyces coelicolor (223 aa), FASTA scores: opt: 781, E(): 5.8e-42, (53.2% identity in 220 aa overlap); O27333|TRKA_METTH|MTH1265 from Methanobacterium thermoautotrophicum (216 aa), FASTA scores: opt: 287, E(): 5.3e-11, (27.0% identity in 211 aa overlap); O54141|SC2E9.16c from Streptomyces coelicolor (226 aa), FASTA scores: opt: 269, E(): 7.3e-10, (29.9% identity in 214 aa overlap); etc. Also similar to upstream orf O07194|CEOC|TRKA_MYCTU|TRKA|TRKB|Rv2692|MT2766|MTCY05A6.13 TRK system potassium uptake protein from Mycobacterium tuberculosis (220 aa), FASTA scores: opt: 259, E(): 3e-09, (26.55% identity in 226 aa overlap). Contains a motif common to NAD+ binding pockets (see citation below). Belongs to the TrkA family. |
| 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). Detected by 2-DE and MS in M. tuberculosis H37Rv purified from phagosomes of infected murine bone marrow macrophages but not in H37Rv broth-cultures (See Mattow et al., 2006). 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). 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 survival in primary murine macrophages, by transposon site hybridization (TraSH) in H37Rv (See Rengarajan et al., 2005). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 3009344 | 3010027 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2691|ceoB
MRVVVMGCGRVGASVADGLSRIGHEVAIIDRDSAAFNRLSPQFAGERVLGQGFDRDVLLRAGIQGADAFAAVSSGDNSNIISARLARETFGVPRVVARIYDAKRAEVYERLGIPTITTVPWTTDRLLNALMQDTETAKWRDPTGTVAVAEVVLHEDWVGHRATDLEQATGARIAFLIRFGTGVLPEPKTVLQAGDKVYIAAISGRAAEAAAIAALPPSEDFESGARR
Bibliography
- Chen P et al. [1998]. Novel selection for isoniazid (INH) resistance genes supports a role for NAD+-binding proteins in mycobacterial INH resistance. 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
- Rengarajan J et al. [2005]. Genome-wide requirements for Mycobacterium tuberculosis adaptation and survival in macrophages. Mutant
- Mattow J, Siejak F, Hagens K, Becher D, Albrecht D, Krah A, Schmidt F, Jungblut PR, Kaufmann SH and Schaible UE [2006]. Proteins unique to intraphagosomally grown Mycobacterium tuberculosis. 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
- 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
