Gene Rv3914 (trx, trxA, mpt46)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Thioredoxin participates in various redox reactions through the reversible oxidation of its active center dithiol, to a disulfide, & catalyzes dithiol-disulfide exchange reactions. Forms together with thioredoxin reductase and NADPH a redox active system which donates electrons to a wide variety of different metabolic process. Seems regulated by sigh (Rv3223c product). |
| Product | Thioredoxin TrxC (TRX) (MPT46) |
| Comments | Rv3914, (MT4033, MTV028.05), len: 116 aa. TrxC (alternate gene names: mpt46, trx, trxA *), thioredoxin (see citations below), equivalent to O30974|THIO_MYCSM|TRXA thioredoxin from Mycobacterium smegmatis (112 aa), FASTA scores: opt: 576, E(): 2.1e-32, (80.2% identity in 111 aa overlap); and also equivalent to C-terminal end of P46843|TRXB_MYCLE|TRXB/a|TRX|ML2703 bifunctional thioredoxin reductase/thioredoxin from Mycobacterium leprae (458 aa), FASTA scores: opt: 628, E(): E(): 2e-35, (82.9% identity in 117 aa overlap). Also highly similar to many e.g. P80579|THIO_ALIAC from Alicyclobacillus acidocaldarius (Bacillus acidocaldarius) (105 aa), FASTA scores: opt: 411, E(): 3e-21, (57.15% identity in 105 aa overlap); P00275|THI1_CORNE from Corynebacterium nephridii (105 aa), FASTA scores: opt: 394, E(): 4.3e-20, (56.7% identity in 97 aa overlap); P00274|THIO_ECOLI|TRXA|TSNC|FIPA|B3781 from Escherichia coli and Salmonella typhimurium strain K12 and LT2 respectively (108 aa), FASTA scores: opt: 364, E(): 4.7e-18, (54.45% identity in 101 aa overlap); etc. Also similar to O53162|TRXB|Rv1471|MTV007.18 thioredoxin from Mycobacterium tuberculosis (123 aa), FASTA scores: E(): 2.3e-15, (41.9% identity in 93 aa overlap). Contains PS00194 Thioredoxin family active site. Belongs to the thioredoxin family. The product of this CDS is supposedly secreted. In this case, this protein could exert its free radical scavenging activity inside macrophages. (*) Warning: note that Rv1470|MTV007.17 correspond also to trxA. |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | The product of this CDS corresponds to spots 3914 identified in short term culture filtrate and cell wall by proteomics at the Statens Serum Institute (Denmark), and at the Max Planck Institute for Infection Biology, Berlin, Germany (see proteomics citations). 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 culture supernatant of M. tuberculosis H37Rv using mass spectrometry (See Mattow et al., 2003). Identified in the cytosol of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Identified in culture filtrates of M. tuberculosis H37Rv (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 culture filtrate, membrane protein fraction, and whole cell lysates of M. tuberculosis H37Rv (See de Souza et al., 2011). Translational start site supported by proteomics data (See de Souza et al., 2011). |
| Transcriptomics | mRNA identified by DNA microarray analysis and up-regulated at high temperatures (see Stewart et al., 2002). mRNA detected by RT-PCR in M. tuberculosis H37Rv under several in vitro growth conditions (oxidative stress and control) (See Akif et al., 2008). |
| Mutant | 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). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 4402732 | 4403082 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3914|trxC
MTDSEKSATIKVTDASFATDVLSSNKPVLVDFWATWCGPCKMVAPVLEEIATERATDLTVAKLDVDTNPETARNFQVVSIPTLILFKDGQPVKRIVGAKGKAALLRELSDVVPNLN
Bibliography
- Wieles B et al. [1995]. Identification and functional characterization of thioredoxin of Mycobacterium tuberculosis. Product Function
- 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
- 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
- Rosenkrands I et al. [2000]. Towards the proteome of Mycobacterium tuberculosis. Proteomics
- Raman S, Song T, Puyang X, Bardarov S, Jacobs Jr WR and Husson RN [2001]. The alternative sigma factor SigH regulates major components of oxidative and heat stress responses in Mycobacterium tuberculosis. Secondary Regulation
- Stewart GR et al. [2002]. Dissection of the heat-shock response in Mycobacterium tuberculosis using mutants and microarrays. Transcriptome Mutant Regulation
- 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
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Hall G et al. [2006]. Structure of Mycobacterium tuberculosis thioredoxin C. Structure
- Målen H et al. [2007]. Comprehensive analysis of exported proteins from Mycobacterium tuberculosis H37Rv. Proteomics
- Akif M et al. [2008]. Functional studies of multiple thioredoxins from Mycobacterium tuberculosis. Biochemistry Transcriptome
- 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]. Proteogenomic analysis of polymorphisms and gene annotation divergences in prokaryotes using a clustered mass spectrometry-friendly database. Proteomics Sequence
- 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
