Gene Rv2839c
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | If-2, one of the essential components for the initiation of protein synthesis in vitro, protects formylmethionyl-tRNA from spontaneous hydrolysis and promotes its binding to the 30S ribosomal subunits. It is also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex. |
| Product | Probable translation initiation factor if-2 InfB |
| Comments | Rv2839c, (MTCY16B7.03), len: 900 aa. Probable infB, translation initiation factor if-2, highly similar, but in part, to Q9Z5I9|IF2_MYCLE|ML1556|MLCB596.14 translation initiation factor if-2 from Mycobacterium leprae (924 aa), FASTA scores: opt: 4548, E(): 2.4e-132, (83.6% identity in 933 aa overlap). Also similar in part to others e.g. Q9K3E2|SC5H4.30 from Streptomyces coelicolor (835 aa), FASTA scores: opt: 2559, E(): 1.3e-71, (59.9% identity in 833 aa overlap); P17889|IF2_BACSU|INFB from Bacillus subtilis (716 aa), FASTA scores: opt: 1782, E(): 6.6e-48, (46.65% identity in 686 aa overlap); P02995|IF2_ECOLI|INFB|SSYG|B3168|Z4529|ECS4049 from Escherichia coli strains O157:H7 and K12 (890 aa), FASTA scores: opt: 1708, E(): 1.3e-45, (46.2% identity in 662 aa overlap); etc. Contains PS00017 ATP/GTP-binding site motif A (P-loop). Belongs to the if-2 family. |
| Functional category | Information pathways |
| 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 and cell membrane fractions of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). 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). |
| Transcriptomics | mRNA identified by DNA microarray analysis and up-regulated at high temperatures (see citation below). |
| 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 | 3145171 | 3147873 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2839c|infB
VAAGKARVHELAKELGVTSKEVLARLSEQGEFVKSASSTVEAPVARRLRESFGGSKPAPAKGTAKSPGKGPDKSLDKALDAAIDMAAGNGKATAAPAKAADSGGAAIVSPTTPAAPEPPTAVPPSPQAPHPGMAPGARPGPVPKPGIRTPRVGNNPFSSAQPADRPIPRPPAPRPGTARPGVPRPGASPGSMPPRPGGAVGGARPPRPGAPRPGGRPGAPGAGRSDAGGGNYRGGGVGAAPGTGFRGRPGGGGGGRPGQRGGAAGAFGRPGGAPRRGRKSKRQKRQEYDSMQAPVVGGVRLPHGNGETIRLARGASLSDFADKIDANPAALVQALFNLGEMVTATQSVGDETLELLGSEMNYNVQVVSPEDEDRELLESFDLSYGEDEGGEEDLQVRPPVVTVMGHVDHGKTRLLDTIRKANVREAEAGGITQHIGAYQVAVDLDGSQRLITFIDTPGHEAFTAMRARGAKATDIAILVVAADDGVMPQTVEAINHAQAADVPIVVAVNKIDKEGADPAKIRGQLTEYGLVPEEFGGDTMFVDISAKQGTNIEALEEAVLLTADAALDLRANPDMEAQGVAIEAHLDRGRGPVATVLVQRGTLRVGDSVVAGDAYGRVRRMVDEHGEDVEVALPSRPVQVIGFTSVPGAGDNFLVVDEDRIARQIADRRSARKRNALAARSRKRISLEDLDSALKETSQLNLILKGDNAGTVEALEEALMGIQVDDEVVLRVIDRGVGGITETNVNLASASDAVIIGFNVRAEGKATELASREGVEIRYYSVIYQAIDEIEQALRGLLKPIYEENQLGRAEIRALFRSSKVGLIAGCLVTSGVMRRNAKARLLRDNIVVAENLSIASLRREKDDVTEVRDGFECGLTLGYADIKEGDVIESYELVQKERA
Bibliography
- Stewart GR et al. [2002]. Dissection of the heat-shock response in Mycobacterium tuberculosis using mutants and microarrays. Transcriptome Mutant Regulation
- 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
- 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
