Gene Rv0350 (hsp70)
in Mycobacterium tuberculosis H37Rv
General annotation
Type | CDS |
Function | Acts as a chaperone. Involved in induction by stress conditions e.g. heat shock. Possibly has an ATPase activity. Seems to be regulated positively by sigh (Rv3223c product) and negatively by HSPR (Rv0353 product). |
Product | Probable chaperone protein DnaK (heat shock protein 70) (heat shock 70 kDa protein) (HSP70) |
Comments | Rv0350, (MTCY13E10.10), len: 625 aa. Probable dnaK (alternate gene name: hsp70), 70 kDa heat shock protein (see citations below), equivalent to AAA25362.1|M95576|1924344A|738248 heat shock protein 70 from Mycobacterium leprae (621 aa); and DNAK_MYCPA|Q00488 (623 aa), FASTA scores: opt: 3678, E(): 0, (92.3% identity in 625 aa overlap). Also highly similar to others e.g. Q05558|DNAK_STRCO|453231|CAA54606.1|X77458 chaperone protein DNAK from Streptomyces coelicolor (618 aa). Has probably an ATPase activity. Note that this sequence differs from DNAK_MYCTU|P32723 (609 aa), due to a frameshift near the N-terminus. Belongs to the heat shock protein 70 family. |
Functional category | Virulence, detoxification, adaptation |
Proteomics | The product of this CDS corresponds to spots 1_447, 1_449, 1_450, 1_451 and 1_459 identified in culture supernatant by proteomics at the Max Planck Institute for Infection Biology, Berlin, Germany, and spots 0350 identified in short term culture filtrate, cell wall and cytosol by proteomics at the Statens Serum Institute (Denmark) (See Mollenkopf et al., 1999; Jungblut et al., 1999; Rosenkrands et al., 2000a, 2000b). Identified in immunodominant fractions of M. tuberculosis H37Rv culture filtrate using 2D-LPE, 2D-PAGE, and LC-MS or LC-MS/MS (See Covert et al., 2001). 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 culture supernatant of M. tuberculosis H37Rv using mass spectrometry (See Mattow et al., 2003). Identified in the cytosol, cell wall, and cell membrane fractions of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Identified in the aqueous phase of Triton X-114 extracts of M. tuberculosis H37Rv membranes using 2-DGE and MALDI-TOF-MS (See Sinha et al., 2005). Identified in culture filtrates of M. tuberculosis H37Rv (See Malen et al., 2007). Identified by mass spectrometry in Triton X-114 extracts of M. tuberculosis H37Rv (See Malen et al., 2010). Identified by mass spectrometry in the culture filtrate, membrane protein fraction, and whole cell lysates of M. tuberculosis H37Rv (See de Souza et al., 2011). Translational start site supported by proteomics data (See de Souza et al., 2011) (See Kelkar et al., 2011). |
Transcriptomics | mRNA identified by RT-PCR in persistent bacteria at 37C; mRNA level increased at 45C (see Hu et al., 2000). mRNA also identified by DNA microarray analysis and highly up-regulated at high temperatures, and possibly down-regulated by hspR/Rv0353 and hrcA|Rv2374c (see Stewart et al., 2002). |
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 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). Check for mutants available at TARGET website |
Coordinates
Type | Start | End | Orientation |
---|---|---|---|
CDS | 419835 | 421712 | + |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv0350|dnaK MARAVGIDLGTTNSVVSVLEGGDPVVVANSEGSRTTPSIVAFARNGEVLVGQPAKNQAVTNVDRTVRSVKRHMGSDWSIEIDGKKYTAPEISARILMKLKRDAEAYLGEDITDAVITTPAYFNDAQRQATKDAGQIAGLNVLRIVNEPTAAALAYGLDKGEKEQRILVFDLGGGTFDVSLLEIGEGVVEVRATSGDNHLGGDDWDQRVVDWLVDKFKGTSGIDLTKDKMAMQRLREAAEKAKIELSSSQSTSINLPYITVDADKNPLFLDEQLTRAEFQRITQDLLDRTRKPFQSVIADTGISVSEIDHVVLVGGSTRMPAVTDLVKELTGGKEPNKGVNPDEVVAVGAALQAGVLKGEVKDVLLLDVTPLSLGIETKGGVMTRLIERNTTIPTKRSETFTTADDNQPSVQIQVYQGEREIAAHNKLLGSFELTGIPPAPRGIPQIEVTFDIDANGIVHVTAKDKGTGKENTIRIQEGSGLSKEDIDRMIKDAEAHAEEDRKRREEADVRNQAETLVYQTEKFVKEQREAEGGSKVPEDTLNKVDAAVAEAKAALGGSDISAIKSAMEKLGQESQALGQAIYEAAQAASQATGAAHPGGEPGGAHPGSADDVVDAEVVDDGREAK
Bibliography
- Jungblut PR, Schaible UE, Mollenkopf HJ, Zimny-Arndt U, Raupach B, Mattow J, Halada P, Lamer S, Hagens K and Kaufmann SH [1999]. Comparative proteome analysis of Mycobacterium tuberculosis and Mycobacterium bovis BCG strains: towards functional genomics of microbial pathogens. Proteomics
- Mollenkopf HJ et al. [1999]. A dynamic two-dimensional polyacrylamide gel electrophoresis database: the mycobacterial proteome via Internet. Proteomics
- Hu Y et al. [2000]. Detection of mRNA transcripts and active transcription in persistent Mycobacterium tuberculosis induced by exposure to rifampin or pyrazinamide. Transcriptome
- Rosenkrands I et al. [2000]. Towards the proteome of Mycobacterium tuberculosis. Proteomics
- Rosenkrands I, Weldingh K, Jacobsen S, Hansen CV, Florio W, Gianetri I and Andersen P [2000]. Mapping and identification of Mycobacterium tuberculosis proteins by two-dimensional gel electrophoresis, microsequencing and immunodetection. Proteomics
- Stewart GR, Snewin VA, Walzl G, Hussell T, Tormay P, O'Gaora P, Goyal M, Betts J, Brown IN and Young DB [2001]. Overexpression of heat-shock proteins reduces survival of Mycobacterium tuberculosis in the chronic phase of infection. Proteomics Regulation
- Raman S, Song T, Puyang X, Bardarov S, Jacobs Jr WR and Husson RN [2001]. The alternative sigma factor SigH regulates major components of oxidative and heat stress responses in Mycobacterium tuberculosis. Secondary Regulation
- Covert BA et al. [2001]. The application of proteomics in defining the T cell antigens of Mycobacterium tuberculosis. Proteomics
- Stewart GR et al. [2002]. Dissection of the heat-shock response in Mycobacterium tuberculosis using mutants and microarrays. Transcriptome Mutant Regulation
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Gu S et al. [2003]. Comprehensive proteomic profiling of the membrane constituents of a Mycobacterium tuberculosis strain. Proteomics
- Mattow J, Schaible UE, Schmidt F, Hagens K, Siejak F, Brestrich G, Haeselbarth G, Muller EC, Jungblut PR and Kaufmann SH [2003]. Comparative proteome analysis of culture supernatant proteins from virulent Mycobacterium tuberculosis H37Rv and attenuated M. bovis BCG Copenhagen. Proteomics
- Sinha S, Kosalai K, Arora S, Namane A, Sharma P, Gaikwad AN, Brodin P and Cole ST [2005]. Immunogenic membrane-associated proteins of Mycobacterium tuberculosis revealed by proteomics. Proteomics
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Målen H et al. [2007]. Comprehensive analysis of exported proteins from Mycobacterium tuberculosis H37Rv. Proteomics
- Målen H et al. [2010]. Definition of novel cell envelope associated proteins in Triton X-114 extracts of Mycobacterium tuberculosis H37Rv. Proteomics
- 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
- de Souza GA et al. [2011]. Proteogenomic analysis of polymorphisms and gene annotation divergences in prokaryotes using a clustered mass spectrometry-friendly database. Proteomics Sequence
- 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