Gene Rv3028c (etfA)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | The electron transfer flavoprotein serves as a specific electron acceptor for other dehydrogenases. It transfers the electrons to the main respiratory chain via ETF-ubiquinone oxidoreductase (ETF dehydrogenase). |
| Product | Probable electron transfer flavoprotein (alpha-subunit) FixB (alpha-ETF) (electron transfer flavoprotein large subunit) (ETFLS) |
| Comments | Rv3028c, (MTV012.43c), len: 318 aa. Probable fixB (alternate gene name: etfA), electron transfer flavoprotein (alpha subunit) for various dehydrogenases. Equivalent to O33096|ETFA_MYCLE|FIXB|ML1711|MLCB637.04 electron transfer flavoprotein from Mycobacterium leprae (318 aa), FASTA scores: opt: 1788, E(): 1.1e-87, (89.3% identity in 318 aa overlap). Also highly similar to many e.g. Q9K418|SCG22.27c from Streptomyces coelicolor (320 aa), FASTA scores: opt: 1161, E(): 1.6e-54, (59.45% identity in 323 aa overlap); AAK08137|etfa from Rhodobacter sphaeroides (308 aa), FASTA scores: opt: 792, E(): 5.1e-35, (45.95% identity in 309 aa overlap); P38974|ETFA_PARDE electron transfer flavoprotein from Paracoccus denitrificans (307 aa), FASTA scores: opt: 789, E(): 7.4e-35, (45.95% identity in 309 aa overlap); etc. Belongs to the Etf alpha-subunit / FixB family. |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | The product of this CDS corresponds to spots 3_129 and 3_68 identified in culture supernatant by proteomics at the Max Planck Institute for Infection Biology, Berlin, Germany, and spot FixB identified in short term culture filtrate by proteomics at the Statens Serum Institute (Denmark) (see citations below). Identified in immunodominant fractions of M. tuberculosis H37Rv cytosol using 2D-LPE, 2D-PAGE, and LC-MS or LC-MS/MS (See Covert et al., 2001). 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 and Edman degradation (See Mattow et al., 2003). Identified in the cytosol and cell wall fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Proteomics shows upregulation in isoniazid-resistant M. tuberculosis clinical isolates (See Jiang 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). 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, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). 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 | 3387075 | 3388031 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3028c|fixB
MAEVLVLVEHAEGALKKVSAELITAARALGEPAAVVVGVPGTAAPLVDGLKAAGAAKIYVAESDLVDKYLITPAVDVLAGLAESSAPAGVLIAATADGKEIAGRLAARIGSGLLVDVVDVREGGVGVHSIFGGAFTVEAQANGDTPVITVRAGAVEAEPAAGAGEQVSVEVPAAAENAARITAREPAVAGDRPELTEATIVVAGGRGVGSAENFSVVEALADSLGAAVGASRAAVDSGYYPGQFQVGQTGKTVSPQLYIALGISGAIQHRAGMQTSKTIVAVNKDEEAPIFEIADYGVVGDLFKVAPQLTEAIKARKG
Bibliography
- 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, 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
- Covert BA et al. [2001]. The application of proteomics in defining the T cell antigens of Mycobacterium tuberculosis. Proteomics
- Dahl JL et al. [2003]. The role of RelMtb-mediated adaptation to stationary phase in long-term persistence of Mycobacterium tuberculosis in mice. Regulon
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- 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
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Jiang X et al. [2006]. Comparison of the proteome of isoniazid-resistant and -susceptible strains of 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]. 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
- Griffin JE et al. [2011]. High-resolution phenotypic profiling defines genes essential for mycobacterial growth and cholesterol catabolism. Mutant
- Kelkar DS et al. [2011]. Proteogenomic analysis of Mycobacterium tuberculosis by high resolution mass spectrometry. Proteomics Sequence
- DeJesus MA et al. [2017]. Comprehensive Essentiality Analysis of the Mycobacterium tuberculosis Genome via Saturating Transposon Mutagenesis. Mutant
