Gene Rv1991c (mt3)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Sequence-specific mRNA cleavage |
| Product | Toxin MazF6 |
| Comments | Rv1991c, (MTCY39.28), len: 114 aa. MazF6, toxin, part of toxin-antitoxin (TA) operon with Rv1991A. Some similarity to P13976|PEMK_ECOLI pemk protein (133 aa), FASTA scores: opt: 113, E(): 0.043, (29.2% identity in 113 aa overlap); and P96622|YDCE protein from Bacillus subtilis (116 aa), FASTA scores: opt: 227, E(): 6.9e-09, (37.4% identity in 115 aa overlap). Also similar to Mycobacterium tuberculosis Rv2801c, and Rv0659c. This region is a possible MT-complex-specific genomic island (See Becq et al., 2007). |
| Functional category | Virulence, detoxification, adaptation |
| Proteomics | 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). |
| 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). Non-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 | 2234305 | 2234649 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv1991c|mazF6
VVISRAEIYWADLGPPSGSQPAKRRPVLVIQSDPYNASRLATVIAAVITSNTALAAMPGNVFLPATTTRLPRDSVVNVTAIVTLNKTDLTDRVGEVPASLMHEVDRGLRRVLDL
Bibliography
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Pandey DP et al. [2005]. Toxin-antitoxin loci are highly abundant in free-living but lost from host-associated prokaryotes. Homology
- Zhu L et al. [2006]. Characterization of mRNA interferases from Mycobacterium tuberculosis. Function Product
- Becq J, Gutierrez MC, Rosas-Magallanes V, Rauzier J, Gicquel B, Neyrolles O and Deschavanne P [2007]. Contribution of horizontally acquired genomic islands to the evolution of the tubercle bacilli. Sequence
- Carroll P et al. [2007]. Expression of Mycobacterium tuberculosis Rv1991c using an arabinose-inducible promoter demonstrates its role as a toxin. Function Product
- Zhu L et al. [2008]. The mRNA interferases, MazF-mt3 and MazF-mt7 from Mycobacterium tuberculosis target unique pentad sequences in single-stranded RNA. Function
- Zhao L et al. [2008]. Biochemical characterization of a chromosomal toxin-antitoxin system in Mycobacterium tuberculosis. Function Product
- Gupta A [2009]. Killing activity and rescue function of genome-wide toxin-antitoxin loci of Mycobacterium tuberculosis. Function
- Ramage HR, Connolly LE and Cox JS [2009]. Comprehensive functional analysis of Mycobacterium tuberculosis toxin-antitoxin systems: implications for pathogenesis, stress responses, and evolution. Function
- 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
