Gene Rv0824c (des)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Catalyzes the principal conversion of saturated fatty acids to unsaturated fatty acids. Thought to convert stearoyl-ACP to oleoyl-ACP by introduction of a cis double bond between carbons delta-9 and delta-10 of the acyl chain [catalytic activity: stearoyl-[acyl-carrier protein] + AH2 + O2 = oleoyl-[acyl-carrier protein] + a + 2 H2O]. |
| Product | Probable acyl-[acyl-carrier protein] desaturase DesA1 (acyl-[ACP] desaturase) (stearoyl-ACP desaturase) (protein Des) |
| Comments | Rv0824c, (MTV043.16c), len: 338 aa. Probable desA1 (alternate gene name: des), acyl-[acyl-carrier protein] desaturase (stearoyl-ACP desaturase) (see Jackson et al., 1997), equivalent to U15182|MLU15182_32 acyl-[ACP] desaturase from Mycobacterium leprae (338 aa), FASTA scores: opt: 1880, E(): 0, (79.9% identity in 338 aa overlap); and highly similar in part to fragment CAB96061.1|AJ250019 Steroyl-ACP-desaturase from Mycobacterium avium subsp. paratuberculosis (93 aa). Also similar to other fatty acid desaturases e.g. T35035 probable acyl-[acyl-carrier protein] desaturase from Streptomyces coelicolor (328 aa); Q40731|STAD_ORYSA acyl-[acyl-carrier protein] desaturase precursor from Oryza sativa (Rice) (390 aa); etc. Also highly similar to desA2|Rv1094 from Mycobacterium tuberculosis (275 aa). Contains PS00225 Crystallins beta and gamma 'Greek key' motif signature. Belongs to the fatty acid desaturase family. Cofactor: ferredoxin, ferredoxin NADPH reductase, and NADPH. Predicted possible vaccine candidate (See Zvi et al., 2008). |
| Functional category | Lipid metabolism |
| Proteomics | The product of this CDS corresponds to spot 2_49 identified in culture supernatant by proteomics 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, cell wall, and cell membrane fractions of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Identified in the membrane fraction of M. tuberculosis H37Rv using nanoLC-MS/MS (See Xiong et al., 2005). Identified by mass spectrometry in whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate or membrane protein fraction (See de Souza et al., 2011). |
| Transcriptomics | DNA microarrays show increased expression in M. tuberculosis H37Rv in BALB/c mice compared to SCID mice, after 21 days of infection (See Talaat et al., 2004). |
| Mutant | Essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Essential gene for in vitro growth of H37Rv, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). Essential gene by Himar1 transposon mutagenesis in H37Rv strain (see Sassetti et al., 2003). 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 | 917734 | 918750 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv0824c|desA1
MSAKLTDLQLLHELEPVVEKYLNRHLSMHKPWNPHDYIPWSDGKNYYALGGQDWDPDQSKLSDVAQVAMVQNLVTEDNLPSYHREIAMNMGMDGAWGQWVNRWTAEENRHGIALRDYLVVTRSVDPVELEKLRLEVVNRGFSPGQNHQGHYFAESLTDSVLYVSFQELATRISHRNTGKACNDPVADQLMAKISADENLHMIFYRDVSEAAFDLVPNQAMKSLHLILSHFQMPGFQVPEFRRKAVVIAVGGVYDPRIHLDEVVMPVLKKWRIFEREDFTGEGAKLRDELALVIKDLELACDKFEVSKQRQLDREARTGKKVSAHELHKTAGKLAMSRR
Bibliography
- Jackson M et al. [1997]. Mycobacterium tuberculosis Des protein: an immunodominant target for the humoral response of tuberculous patients. 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
- 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
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Talaat AM et al. [2004]. The temporal expression profile of Mycobacterium tuberculosis infection in mice. Transcriptome
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Xiong Y, Chalmers MJ, Gao FP, Cross TA and Marshall AG [2005]. Identification of Mycobacterium tuberculosis H37Rv integral membrane proteins by one-dimensional gel electrophoresis and liquid chromatography electrospray ionization tandem mass spectrometry. Proteomics
- Zvi A et al. [2008]. Whole genome identification of Mycobacterium tuberculosis vaccine candidates by comprehensive data mining and bioinformatic analyses. Immunology
- Arnvig KB et al. [2009]. Identification of small RNAs in Mycobacterium tuberculosis. Operon
- 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
