Gene Rv3248c
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Thioester hydrolase which acting on ether bounds. Could be involved in methionine and selenoamino acid metabolisms. Also involved in activated methyl. Cycle adenosylhomocysteine is a competitive inhibitor of S-adenosyl-L-methionine-dependent methyl transferase reactions; therefore adenosylhomocysteinase may play a key role in the control of methylations via regulation of the intracellular concentration of adenosylhomocysteine [catalytic activity: S-adenosyl-L-homocysteine + H(2)O = adenosine + L-homocysteine]. |
| Product | Probable adenosylhomocysteinase SahH (S-adenosyl-L-homocysteine hydrolase) (adohcyase) |
| Comments | Rv3248c, (MTCY20B11.23c), len: 495 aa. Probable sahH, adenosylhomocysteinase, equivalent to Q9CCJ4|SAHH|ML0771 putative S-adenosyl-L-homocysteine hydrolase from Mycobacterium leprae (492 aa), FASTA scores: opt: 3019, E(): 1.3e-177, (91.4% identity in 489 aa overlap). Also highly similar to other adenosylhomocysteinases e.g. Q9KZM1|SAHH from Streptomyces coelicolor (485 aa), FASTA scores: opt: 2258, E(): 5.7e-131, (70.0% identity in 483 aa overlap); P51540|SAHH_TRIVA from Trichomonas vaginalis (486 aa), FASTA scores: opt: 2005, E(): 1.8e-115, (62.05% identity in 477 aa overlap); P35007|SAHH_CATRO from Catharanthus roseus (Rosy periwinkle) (Madagascar periwinkle) (485 aa), FASTA scores: opt: 1941, E(): 1.5e-111, (60.15% identity in 492 aa overlap); etc. Has S-adenosyl-L-homocysteine hydrolase signature (PS00739). Belongs to the adenosylhomocysteinase family. |
| Functional category | Intermediary metabolism and respiration |
| Proteomics | The product of this CDS corresponds to a spots 3248c identified in cytosol and short term culture filtrate by proteomics at the Statens Serum Institute (Denmark) (see citations below). 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 cytosol and cell membrane fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega 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). |
| 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 | 3628160 | 3629647 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3248c|sahH
MTGNLVTKNSLTPDVRNGIDFKIADLSLADFGRKELRIAEHEMPGLMSLRREYAEVQPLKGARISGSLHMTVQTAVLIETLTALGAEVRWASCNIFSTQDHAAAAVVVGPHGTPDEPKGVPVFAWKGETLEEYWWAAEQMLTWPDPDKPANMILDDGGDATMLVLRGMQYEKAGVVPPAEEDDPAEWKVFLNLLRTRFETDKDKWTKIAESVKGVTEETTTGVLRLYQFAAAGDLAFPAINVNDSVTKSKFDNKYGTRHSLIDGINRGTDALIGGKKVLICGYGDVGKGCAEAMKGQGARVSVTEIDPINALQAMMEGFDVVTVEEAIGDADIVVTATGNKDIIMLEHIKAMKDHAILGNIGHFDNEIDMAGLERSGATRVNVKPQVDLWTFGDTGRSIIVLSEGRLLNLGNATGHPSFVMSNSFANQTIAQIELWTKNDEYDNEVYRLPKHLDEKVARIHVEALGGHLTKLTKEQAEYLGVDVEGPYKPDHYRY
Bibliography
- 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
- 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
- Målen H et al. [2007]. Comprehensive analysis of exported proteins from Mycobacterium tuberculosis H37Rv. Proteomics
- Reddy MC et al. [2008]. Crystal structures of Mycobacterium tuberculosis S-adenosyl-L-homocysteine hydrolase in ternary complex with substrate and inhibitors. Structure
- 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
- 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
