Gene Rv3490
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in osmoregulatory trehalose biosynthesis. Mycobacteria can produce trehalose from glucose 6-phosphate and UDP-glucose (the OtsA-OtsB pathway) from glycogen-like alpha(1-->4)-linked glucose polymers (the TreY-TreZ pathway) and from maltose (the TreS pathway) [catalytic activity: UDP-glucose + D-glucose 6-phosphate = UDP + alpha,alpha-trehalose 6-phosphate]. |
| Product | Alpha, alpha-trehalose-phosphate synthase [UDP-forming] OtsA (trehalose-6-phosphate synthase) (UDP-glucose-glucosephosphate glucosyltransferase) (trehalosephosphate-UDP glucosyltransferase) (trehalose-6-phosphate synthetase) (trehalose-phosphate synthase) (trehalose-phosphate synthetase) (transglucosylase) (trehalosephosphate-UDP glucosyl transferase) |
| Comments | Rv3490, (MTCY13E12.43), len: 500 aa. otsA, alpha, alpha-trehalose-phosphate synthase (see citations below), equivalent to Q50167|OTSA|ML2254 probable trehalose-phosphate synthase from Mycobacterium leprae (498 aa), FASTA scores: opt: 2706, E(): 1.6e-166, (80.3% identity in 497 aa overlap). Also similar to others e.g. Q92410|TPS1_CANAL from Candida albicans (Yeast) (478 aa), FASTA scores: opt: 895, E(): 4.9e-50, (37.15% identity in 479 aa overlap); Q00764|TPS1_YEASTTPS1|CIF1|BYP1|FDP1|GGS1|GLC6|YBR126c|YBR0922 from Saccharomyces cerevisiae (Baker's yeast) (495 aa), FASTA scores: opt: 847, E(): 6.2e-47, (36.1% identity in 490 aa overlap); BAB48232|MLL0691 from Rhizobium loti (Mesorhizobium loti) (520 aa), FASTA scores: opt: 884, E(): 2.7e-49, (36.2% identity in 478 aa overlap); etc. Equivalent to AAK47953 from Mycobacterium tuberculosis strain CDC1551 (478 aa) but longer 22 aa. |
| Functional category | Virulence, detoxification, adaptation |
| Proteomics | 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 cell wall fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). 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 and whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate (See de Souza 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 | 3908236 | 3909738 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3490|otsA
MAPSGGQEAQICDSETFGDSDFVVVANRLPVDLERLPDGSTTWKRSPGGLVTALEPVLRRRRGAWVGWPGVNDDGAEPDLHVLDGPIIQDELELHPVRLSTTDIAQYYEGFSNATLWPLYHDVIVKPLYHREWWDRYVDVNQRFAEAASRAAAHGATVWVQDYQLQLVPKMLRMLRPDLTIGFFLHIPFPPVELFMQMPWRTEIIQGLLGADLVGFHLPGGAQNFLILSRRLVGTDTSRGTVGVRSRFGAAVLGSRTIRVGAFPISVDSGALDHAARDRNIRRRAREIRTELGNPRKILLGVDRLDYTKGIDVRLKAFSELLAEGRVKRDDTVVVQLATPSRERVESYQTLRNDIERQVGHINGEYGEVGHPVVHYLHRPAPRDELIAFFVASDVMLVTPLRDGMNLVAKEYVACRSDLGGALVLSEFTGAAAELRHAYLVNPHDLEGVKDGIEEALNQTEEAGRRRMRSLRRQVLAHDVDRWAQSFLDALAGAHPRGQG
Bibliography
- Pan YT et al. [1996]. Trehalose-P synthase of mycobacteria: its substrate specificity is affected by polyanions. Homolog Product Function
- De Smet KA et al. [2000]. Three pathways for trehalose biosynthesis in mycobacteria. Homolog Product Function
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Målen H et al. [2010]. Definition of novel cell envelope associated proteins in Triton X-114 extracts of Mycobacterium tuberculosis H37Rv. Proteomics
- 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
