Gene Rv1348
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Involved in iron homeostasis. Responsible for energy coupling to the transport system and for the translocation of the substrate across the membrane. |
| Product | Iron-regulated transporter IrtA |
| Comments | Rv1348, (MTCY02B10.12), len: 859 aa. IrtA, iron-regulated transporter. Probable transmembrane protein, similar to HMT1_SCHPO|Q02592 heavy metal tolerance protein precursor from Schizosaccharomyces pombe (830 aa), FASTA scores: opt: 806, E(): 5.1e-39, (32.9% identity in 504 aa overlap); etc. Also similar to MTCY02B10.13 from Mycobacterium tuberculosis, FASTA score: (31.9% identity in 576 aa overlap). Contains PS00017 ATP/GTP-binding site motif A (P-loop), and PS00211 ABC transporters family signature. Belongs to the ATP-binding transport protein family (ABC transporters). Cofactor: FAD |
| Functional category | Cell wall and cell processes |
| Proteomics | Identified in the membrane fraction of M. tuberculosis H37Rv using 1D-SDS-PAGE and uLC-MS/MS; predicted transmembrane protein (See Gu et al., 2003). Identified by Western blot in the cytoplasmic membrane fraction of M. tuberculosis H37Rv and not the cell wall or cytosol (See Farhana et al., 2008). |
| Transcriptomics | DNA microarrays indicate repression by iron and IdeR|Rv2711 in M. tuberculosis H37Rv (See Rodriguez et al., 2002). |
| Operon | Rv1348 and Rv1349 are co-transcribed, by RT-PCR (See Farhana et al., 2008). |
| Mutant | Essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Essential gene domain for in vitro growth of H37Rv, 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). M. tuberculosis H37Rv Rv1348 mutant shows growth defect in iron-deficient media, THP-1 cells, and C57B/6 mice (See Rodriguez and Smith, 2006); shows reduced uptake of Fe-carboxymycobactin (See Ryndak et al., 2010). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 1513047 | 1515626 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv1348|irtA
MARGLQGVMLRSFGARDHTATVIETISIAPHFVRVRMVSPTLFQDAEAEPAAWLRFWFPDPNGSNTEFQRAYTISEADPAAGRFAVDVVLHDPAGPASSWARTVKPGATIAVMSLMGSSRFDVPEEQPAGYLLIGDSASIPGMNGIIETVPNDVPIEMYLEQHDDNDTLIPLAKHPRLRVRWVMRRDEKSLAEAIENRDWSDWYAWATPEAAALKCVRVRLRDEFGFPKSEIHAQAYWNAGRAMGTHRATEPAATEPEVGAAPQPESAVPAPARGSWRAQAASRLLAPLKLPLVLSGVLAALVTLAQLAPFVLLVELSRLLVSGAGAHRLFTVGFAAVGLLGTGALLAAALTLWLHVIDARFARALRLRLLSKLSRLPLGWFTSRGSGSIKKLVTDDTLALHYLVTHAVPDAVAAVVAPVGVLVYLFVVDWRVALVLFGPVLVYLTITSSLTIQSGPRIVQAQRWAEKMNGEAGSYLEGQPVIRVFGAASSSFRRRLDEYIGFLVAWQRPLAGKKTLMDLATRPATFLWLIAATGTLLVATHRMDPVNLLPFMFLGTTFGARLLGIAYGLGGLRTGLLAARHLQVTLDETELAVREHPREPLDGEAPATVVFDHVTFGYRPGVPVIQDVSLTLRPGTVTALVGPSGSGKSTLATLLARFHDVERGAIRVGGQDIRSLAADELYTRVGFVLQEAQLVHGTAAENIALAVPDAPAEQVQVAAREAQIHDRVLRLPDGYDTVLGANSGLSGGERQRLTIARAILGDTPVLILDEATAFADPESEYLVQQALNRLTRDRTVLVIAHRLHTITRADQIVVLDHGRIVERGTHEELLAAGGRYCRLWDTGQGSRVAVAAAQDGTR
Bibliography
- Braibant M et al. [2000]. The ATP binding cassette (ABC) transport systems of Mycobacterium tuberculosis. Review Secondary
- Gold B et al. [2001]. The Mycobacterium tuberculosis IdeR is a dual functional regulator that controls transcription of genes involved in iron acquisition, iron storage and survival in macrophages. Regulon
- Rodriguez GM, Voskuil MI, Gold B, Schoolnik GK and Smith I [2002]. ideR, An essential gene in mycobacterium tuberculosis: role of IdeR in iron-dependent gene expression, iron metabolism, and oxidative stress response. Transcriptome
- 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
- Prakash P et al. [2005]. Computational prediction and experimental verification of novel IdeR binding sites in the upstream sequences of Mycobacterium tuberculosis open reading frames. Regulon
- Rodriguez GM et al. [2006]. Identification of an ABC transporter required for iron acquisition and virulence in Mycobacterium tuberculosis. Mutant
- Farhana A et al. [2008]. Mechanistic insights into a novel exporter-importer system of Mycobacterium tuberculosis unravel its role in trafficking of iron. Localization Operon
- Ryndak MB et al. [2010]. The Mycobacterium tuberculosis high-affinity iron importer, IrtA, contains an FAD-binding domain. Biochemistry Mutant
- 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
