Gene Rv3025c (nifS)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Catalyzes the removal of elemental sulfur from cysteine to produce alanine. |
| Product | Cysteine desulfurase IscS (NIFS protein homolog) (nitrogenase metalloclusters biosynthesis protein NIFS) |
| Comments | Rv3025c, (MTV012.40c), len: 393 aa. IscS (alternate gene name: nifS), cysteine desulfurase (NifS-like protein) , equivalent to MLCB637.06|O33098 NIFS-like protein from Mycobacterium leprae (396 aa), FASTA scores: opt: 2186, E(): 2.7e-122, (84.9% identity in 391 aa overlap). Also highly similar to many e.g. O86581|SC2A11.20 putative pyridoxal-phosphate-dependent aminotransferase from Streptomyces coelicolor (389 aa), FASTA scores: opt: 1568, E(): 1.1e-85, (61.7% identity in 389 aa overlap); P57795|ISCS|NIFS cysteine desulfurase (NIFS protein homolog) from Methanosarcina thermophila (404 aa), FASTA scores: opt: 1059, E(): 1.6e-55, (46.2% identity in 381 aa overlap); O54055|ISCS_RUMFL|ISCS|NIFS cysteine desulfurase from Ruminococcus flavefaciens (396 aa), FASTA scores: opt: 973, E(): 2e-50, (43.3% identity in 381 aa overlap); P57794|NIFS_ACEDI cysteine desulfurase from Acetobacter diazotrophicus (400 aa), FASTA scores: opt: 958, E(): 1.6e-49, (41.1% identity in 392 aa overlap); etc. Also similar to Rv1464|MTV007.11 from Mycobacterium tuberculosis. Contains PS00595 Aminotransferases class-V pyridoxal-phosphate attachment site. Belongs to class-V of pyridoxal-phosphate-dependent aminotransferases, NIFS/ISCS subfamily. Cofactor: pyridoxal phosphate (by similarity). |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | 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 of M. tuberculosis H37Rv but not the culture filtrate or membrane protein fraction (See de Souza et al., 2011). Translational start site supported by proteomics data (See Kelkar et al., 2011). |
| Mutant | Essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Disruption of this gene results in growth defect of H37Rv in vitro, 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 | 3383885 | 3385066 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3025c|iscS
MAYLDHAATTPMHPAAIEAMAAVQRTIGNASSLHTSGRSARRRIEEARELIADKLGARPSEVIFTAGGTESDNLAVKGIYWARRDAEPHRRRIVTTEVEHHAVLDSVNWLVEHEGAHVTWLPTAADGSVSATALREALQSHDDVALVSVMWANNEVGTILPIAEMSVVAMEFGVPMHSDAIQAVGQLPLDFGASGLSAMSVAGHKFGGPPGVGALLLRRDVTCVPLMHGGGQERDIRSGTPDVASAVGMATAAQIAVDGLEENSARLRLLRDRLVEGVLAEIDDVCLNGADDPMRLAGNAHFTFRGCEGDALLMLLDANGIECSTGSACTAGVAQPSHVLIAMGVDAASARGSLRLSLGHTSVEADVDAALEVLPGAVARARRAALAAAGASR
Bibliography
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Singh A et al. [2007]. Mycobacterium tuberculosis WhiB3 responds to O2 and nitric oxide via its [4Fe-4S] cluster and is essential for nutrient starvation survival. Function
- 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
- Kelkar DS et al. [2011]. Proteogenomic analysis of Mycobacterium tuberculosis by high resolution mass spectrometry. Proteomics Sequence
- Griffin JE et al. [2011]. High-resolution phenotypic profiling defines genes essential for mycobacterial growth and cholesterol catabolism. Mutant
- 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
