Gene Rv1736c
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in nitrate reduction, and in the persistence in the host [catalytic activity: nitrite + acceptor = nitrate + reduced acceptor] |
| Product | Probable nitrate reductase NarX |
| Comments | Rv1736c, (MTCY04C12.21c), len: 652 aa. Probable narX, nitrate reductase. Contains three domains: N-terminus (250 aa) is similar to e.g. N-terminus of NARG_ECOLI|P09152 respiratory nitrate reductase 1 alpha chain from Escherichia coli (1246 aa), FASTA scores: E(): 0, (58.6% identity in 251 aa overlap); and Rv1161|MTCI65.28|NARG probable respiratory nitrate reductase (alpha chain) from Mycobacterium tuberculosis (1232 aa). Central region (260-410 aa) is similar to Rv1163|O06561|NARJ probable respiratory nitrate reductase (delta chain) from Mycobacterium tuberculosis (201 aa), FASTA scores: E(): 0, (64.2% identity in 159 aa overlap). C-terminus (420 aa-) is similar to Rv1164|O06562|NARI probable respiratory nitrate reductase (gamma chain) from Mycobacterium tuberculosis (246 aa), FASTA scores: E(): 0, (68.6% identity in 239 aa overlap). Contains PS00551 Prokaryotic molybdopterin oxidoreductases signature 1. |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | Identified by mass spectrometry in M. tuberculosis H37Rv-infected guinea pig lungs at 90 days but not 30 days (See Kruh et al., 2010). |
| Transcriptomics | mRNA identified by DNA microarray analysis (gene induced by hypoxia) (Sherman et al., 2001). mRNA expression also studied in human lung granulomas of tuberculosis patients (see Fenhalls et al., 2002) and in anaerobic dormant Mycobacterium bovis BCG (see Hutter et al., 1999). |
| 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 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 | 1962228 | 1964186 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv1736c|narX
VTVTPRTGSRIEELLARSGRFFIPGEISADLRTVTRRGGRDGDVFYRDRWSHDKVVRSTHGVNCTGSCSWKIYVKDDIITWETQETDYPSVGPDRPEYEPRGCPRGAAFSWYTYSPTRVRHPYARGVLVEMYREAKARLGDPVAAWADIQADPRRRRRYQRARGKGGLVRVSWAEATEMIAAAHVHTISTYGPDRVAGFSPIPAMSMVSHAAGSRFVELIGGVMTSFYDWYADLPVASPQVFGDQTDVPESGDWWDVVWQCASVLLTYPNSRQLGTAEELLAHIDGPAADLLGRTVSELRRADPLTAATRYVDTFDLRGRATLYLTYWTAGDTRNRGREMLAFAQTYRSTDVAPPRGETPDFLPVVLEFAATVDPEAGRRLLSGYRVPIAALCNALTEAALPYAHTVAAVCRTGDMMGELFWTVVPYVTMTIVAVGSWWRYRYDKFGWTTRSSQLYESRLLRIASPMFHFGILVVIVGHGIGLVIPQSWTQAAGLSEGAYHVQAVVLGSIAGITTLAGVTLLIYRRRTRGPVFMATTVNDKVMYLVLVAAIVAGLGATALGSGVVGEAYNYRETVSVWFRSVWVLQPRGDLMAEAPLYYQIHVLIGLALFALWPFTRLVHAFSAPIGYLFRPYIIYRSREELVLTRPRRRGW
Bibliography
- Hutter B et al. [1999]. Up-regulation of narX, encoding a putative 'fused nitrate reductase' in anaerobic dormant Mycobacterium bovis BCG. Homolog Transcriptome
- Sherman DR, Voskuil M, Schnappinger D, Liao R, Harrell MI and Schoolnik GK [2001]. Regulation of the Mycobacterium tuberculosis hypoxic response gene encoding alpha -crystallin. Transcriptome
- Fenhalls G, Stevens L, Moses L, Bezuidenhout J, Betts JC, Helden Pv P, Lukey PT and Duncan K [2002]. In situ detection of Mycobacterium tuberculosis transcripts in human lung granulomas reveals differential gene expression in necrotic lesions. Transcriptome Regulation
- Park HD et al. [2003]. Rv3133c/dosR is a transcription factor that mediates the hypoxic response of Mycobacterium tuberculosis. Transcriptome
- Voskuil MI, Schnappinger D, Visconti KC, Harrell MI, Dolganov GM, Sherman DR and Schoolnik GK [2003]. Inhibition of respiration by nitric oxide induces a Mycobacterium tuberculosis dormancy program. Regulon
- Kruh NA et al. [2010]. Portrait of a pathogen: the Mycobacterium tuberculosis proteome in vivo. Proteomics
- 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
