Gene Rv1387
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Function unknown |
| Product | PPE family protein PPE20 |
| Comments | Rv1387, (MTCY21B4.04), len: 539 aa. PPE20, Member of Mycobacterium tuberculosis PPE family of proteins, similar to many e.g. Y05F_MYCTU|Q10892 hypothetical 46.9 kd protein cy251.15 (463 aa), FASTA scores: E(): 4.2e-26, (37.7% identity in 531 aa overlap); similar also to MTCY274.23c (37.5% identity in 168 aa overlap). Contains PS00343 Gram-positive cocci surface proteins 'anchoring' hexapeptide. A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al., 2004). |
| Functional category | Pe/ppe |
| 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 and whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate (See de Souza et al., 2011). |
| Transcriptomics | mRNA identified by microarray analysis: transcription repressed at low pH in vitro conditions, which may mimic an environmental signal encountered by phagocytosed bacteria (see Fisher et al., 2002), and down-regulated after 4h, 24h and 96h of starvation (see Betts et al., 2002). DNA microarrays show higher level of expression in M. tuberculosis H37Rv than in Rv3676 mutant (See Rickman et al., 2005). |
| 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 and CDC1551 strains (see Sassetti et al., 2003 and Lamichhane 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 | 1561769 | 1563388 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv1387|PPE20
MTEPWIAFPPEVHSAMLNYGAGVGPMLISATQNGELSAQYAEAASEVEELLGVVASEGWQGQAAEAFVAAYMPFLAWLIQASADCVEMAAQQHVVIEAYTAAVELMPTQVELAANQIKLAVLVATNFFGINTIPIAINEAEYVEMWVRAATTMATYSTVSRSALSAMPHTSPPPLILKSDELLPDTGEDSDEDGHNHGGHSHGGHARMIDNFFAEILRGVSAGRIVWDPVNGTLNGLDYDDYVYPGHAIWWLARGLEFFQDGEQFGELLFTNPTGAFQFLLYVVVVDLPTHIAQIATWLGQYPQLLSAALTGVIAHLGAITGLAGLSGLSAIPSAAIPAVVPELTPVAAAPPMLAVAGVGPAVAAPGMLPASAPAPAAAAGATAAGPTPPATGFGGFPPYLVGGGGPGIGFGSGQSAHAKAAASDSAAAESAAQASARAQARAARRGRSAAKARGHRDEFVTMDMGFDAAAPAPEHQPGARASDCGAGPIGFAGTVRKEAVVKAAGLTTLAGDDFGGGPTMPMMPGTWTHDQGVFDEHR
Bibliography
- Fisher MA, Plikaytis BB and Shinnick TM [2002]. Microarray analysis of the Mycobacterium tuberculosis transcriptional response to the acidic conditions found in phagosomes. Transcriptome Regulation
- Betts JC et al. [2002]. Evaluation of a nutrient starvation model of Mycobacterium tuberculosis persistence by gene and protein expression profiling. Transcriptome
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Lamichhane G et al. [2003]. A postgenomic method for predicting essential genes at subsaturation levels of mutagenesis: application to Mycobacterium tuberculosis. Mutant
- Marmiesse M, Brodin P, Buchrieser C, Gutierrez C, Simoes N, Vincent V, Glaser P, Cole ST and Brosch R [2004]. Macro-array and bioinformatic analyses reveal mycobacterial 'core' genes, variation in the ESAT-6 gene family and new phylogenetic markers for the Mycobacterium tuberculosis complex. Homology
- Rickman L, Scott C, Hunt DM, Hutchinson T, Menendez MC, Whalan R, Hinds J, Colston MJ, Green J and Buxton RS [2005]. A member of the cAMP receptor protein family of transcription regulators in Mycobacterium tuberculosis is required for virulence in mice and controls transcription of the rpfA gene coding for a resuscitation promoting factor. Transcriptome
- 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
- Mazandu GK et al. [2012]. Function prediction and analysis of mycobacterium tuberculosis hypothetical proteins. Function
- 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
