Gene Rv0470c (umaA2)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in the mycolic acid modification or synthesis; essential for the cyclopropanation function. Required for cording and mycolic acid cyclopropane ring synthesis in the cell wall. |
| Product | Mycolic acid synthase PcaA (cyclopropane synthase) |
| Comments | Rv0470c, (MTV038.14), len: 287 aa. PcaA (previously known as umaA2), mycolic acid synthase (cyclopropane synthase) (see citations below), equivalent to CAC31976.1|AL583925 Mycolic acid synthase from Mycobacterium leprae (295 aa); and highly similar to S72886|B2168_F3_130|467038|AAA17222.1|U00018 hypothetical protein from Mycobacterium leprae (308 aa); Q11195|CFA1_MYCTU cyclopropane-fatty-acyl-phospholipid synthase 1 (cyclopropane mycolic acid synthase 1) (287 aa) (see Glickman et al., 2000); U27357|MTU27357_1 cyclopropane mycolic acid synthase from Mycobacterium tuberculosis (287 aa), FASTA scores: opt: 1415, E(): 0, (72.8% identity in 287 aa overlap); and related enzymes e.g. MTCY20H10.25c|Z92772|MTY20H10_26 (287 aa), FASTA scores: opt: 1387, E(): 0, (72.5% identity in 287 aa overlap). |
| Functional category | Lipid metabolism |
| 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). Translational start site supported by proteomics data (See Kelkar et al., 2011). |
| Transcriptomics | mRNA identified by DNA microarray analysis and possibly down-regulated by hspR|Rv0353 and hrcA|Rv2374c (see Stewart et al., 2002). |
| 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). Required for growth in C57BL/6J mouse spleen, by transposon site hybridization (TraSH) in H37Rv (See Sassetti and Rubin, 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 | 560848 | 561711 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv0470c|pcaA
MSVQLTPHFGNVQAHYDLSDDFFRLFLDPTQTYSCAYFERDDMTLQEAQIAKIDLALGKLNLEPGMTLLDIGCGWGATMRRAIEKYDVNVVGLTLSENQAGHVQKMFDQMDTPRSRRVLLEGWEKFDEPVDRIVSIGAFEHFGHQRYHHFFEVTHRTLPADGKMLLHTIVRPTFKEGREKGLTLTHELVHFTKFILAEIFPGGWLPSIPTVHEYAEKVGFRVTAVQSLQLHYARTLDMWATALEANKDQAIAIQSQTVYDRYMKYLTGCAKLFRQGYTDVDQFTLEK
Bibliography
- Glickman MS, Cox JS and Jacobs Jr WR [2000]. A novel mycolic acid cyclopropane synthetase is required for cording, persistence, and virulence of Mycobacterium tuberculosis. Product Mutant Biochemistry Function
- Kremer L, Baulard AR and Besra GS [2000]. Review
- Huang CC et al. [2002]. Crystal structures of mycolic acid cyclopropane synthases from Mycobacterium tuberculosis. Product Structure
- Stewart GR et al. [2002]. Dissection of the heat-shock response in Mycobacterium tuberculosis using mutants and microarrays. Transcriptome Regulation
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Sassetti CM and Rubin EJ [2003]. Genetic requirements for mycobacterial survival during infection. Mutant
- 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
