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virulence, detoxification, adaptation
lipid metabolism
conserved hypotheticals
pseudogenes
information pathways
cell wall and cell processes
stable RNAs
insertion seqs and phages
PE/PPE
intermediary metabolism and respiration
unknown
regulatory proteins
General annotation
TypeCDS
FunctionInvolved in cysteine biosynthesis [catalytic activity: O3-acetyl-L-serine + H(2)S = L-cysteine + acetate].
ProductCysteine synthase a CysK1 (O-acetylserine sulfhydrylase A) (O-acetylserine (thiol)-lyase A) (CSASE A)
CommentsRv2334, (MT2397, MTCY98.03), len: 310 aa. cysK1, cysteine synthase A, equivalent to O32978|CYSK_MYCLE|ML0839|MLCB22.47 cysteine synthase a from Mycobacterium leprae (310 aa), FASTA scores: opt: 1756, E(): 8.6e-96, (85.8% identity in 310 aa overlap). Also highly similar to other cysteine synthases e.g. Q9JQL6|CYSK|NMA0974|NMB0763 putative cysteine synthase from Neisseria meningitidis (serogroup a and B) (310 aa), FASTA scores: opt: 1368, E(): 4.6e-73, (66.45% identity in 310 aa overlap); P73410|CYSK_SYNY3|SLR1842 from Synechocystis sp (312 aa), FASTA scores: opt: 1310, E(): 1.2e-69, (64.65% identity in 311 aa overlap); Q43725|CYSM_ARATH|OASC|ACS1|AT3G59760|F24G16.30 cysteine synthase (mitochondrial precursor) from Arabidopsis thaliana (Mouse-ear cress) (424 aa), FASTA scores: opt: 1253, E(): 3.2e-66, (59.2% identity in 309 aa overlap) (has its N-terminus longer 104 aa); etc. Contains PS00901 Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site. Belongs to the cysteine synthase/cystathionine beta-synthase family. Note that previously known as cysK. Rv2334, (MT2397, MTCY98.03), len: 310 aa. cysK1, cysteine synthase A, equivalent to O32978|CYSK_MYCLE|ML0839|MLCB22.47 cysteine synthase a from Mycobacterium leprae (310 aa), FASTA scores: opt: 1756, E(): 8.6e-96, (85.8% identity in 310 aa overlap). Also highly similar to other cysteine synthases e.g. Q9JQL6|CYSK|NMA0974|NMB0763 putative cysteine synthase from Neisseria meningitidis (serogroup a and B) (310 aa), FASTA scores: opt: 1368, E(): 4.6e-73, (66.45% identity in 310 aa overlap); P73410|CYSK_SYNY3|SLR1842 from Synechocystis sp (312 aa), FASTA scores: opt: 1310, E(): 1.2e-69, (64.65% identity in 311 aa overlap); Q43725|CYSM_ARATH|OASC|ACS1|AT3G59760|F24G16.30 cysteine synthase (mitochondrial precursor) from Arabidopsis thaliana (Mouse-ear cress) (424 aa), FASTA scores: opt: 1253, E(): 3.2e-66, (59.2% identity in 309 aa overlap) (has its N-terminus longer 104 aa); etc. Contains PS00901 Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site. Belongs to the cysteine synthase/cystathionine beta-synthase family. Note that previously known as cysK.
Functional categoryIntermediary metabolism and respiration
ProteomicsIdentified in the culture supernatant of M. tuberculosis H37Rv using mass spectrometry (See Mattow et al., 2003). 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 and membrane protein fraction of M. tuberculosis H37Rv but not whole cell lysates (See de Souza et al., 2011). Translational start site supported by proteomics data (See Kelkar et al., 2011).
Mutationnon essential gene by Himar1-based transposon mutagenesis in H37Rv strain (see Sassetti et al., 2003).
Check for mutants available at TARGET website
Coordinates
TypeStartEndOrientation
CDS26087962609728+
RBS26087862608789+
Genomic sequence
Feature type Upstream flanking region (bp) Downstream flanking region (bp) Update
      
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2334|cysK1
MSIAEDITQLIGRTPLVRLRRVTDGAVADIVAKLEFFNPANSVKDRIGVAMLQAAEQAGLIKPDTIILEPTSGNTGIALAMVCAARGYRCVLTMPETMSLERRMLLRAYGAELILTPGADGMSGAIAKAEELAKTDQRYFVPQQFENPANPAIHRVTTAEEVWRDTDGKVDIVVAGVGTGGTITGVAQVIKERKPSARFVAVEPAASPVLSGGQKGPHPIQGIGAGFVPPVLDQDLVDEIITVGNEDALNVARRLAREEGLLVGISSGAATVAALQVARRPENAGKLIVVVLPDFGERYLSTPLFADVAD