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virulence, detoxification, adaptation
information pathways
cell wall and cell processes
stable RNAs
insertion seqs and phages
intermediary metabolism and respiration
regulatory proteins
conserved hypotheticals
lipid metabolism
General annotation
FunctionConverts unknown esters to corresponding free acid and alcohol
ProductProbable carboxylesterase CaeA
CommentsRv2224c, (MTCY427.05c), len: 520 aa. Probable caeA, carboxylesterase; has signal sequence and lipoprotein motif at N-terminal end. Very similar to three proteases/peptidases from Streptomyces spp.: L42758, L42759, L27466. FASTA score: L4 2758|STMSLPD STMSLPD NID: g940302 - Streptomyces (539 aa) opt: 1032 E(): 0, (37.5% identity in 533 aa overlap). Similar to hypothetical protein SW:YZZE_ECOLI P34211 (27.7% identity in 412 aa overlap) and highly similar to Rv2224c and Rv2672 (49.3% identity in 507 aa overlap); contains PS00013, Prokaryotic membrane lipoprotein lipid attachment site, and PS00120 Lipases, serine active site. Conserved in M. tuberculosis, M. leprae, M. bovis and M. avium paratuberculosis; predicted to be essential for in vivo survival and pathogenicity (See Ribeiro-Guimaraes and Pessolani, 2007). Predicted to be an outer membrane protein (See Song et al., 2008).
Functional categoryCell wall and cell processes
ProteomicsIdentified 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 in the cytosol of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Identified in the membrane fraction of M. tuberculosis H37Rv using nanoLC-MS/MS (See Xiong et al., 2005). Identified in the detergent phase of Triton X-114 extracts of M. tuberculosis H37Rv membranes using 1-DGE and MALDI-TOF-MS (See Sinha et al., 2005). Predicted surface lipoprotein - identified in culture filtrates of M. tuberculosis H37Rv; signal peptide predicted (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).
TranscriptomicsmRNA level (identified by real-time quantitative RT-PCR) increased 24 and 72h after cultured macrophages infection (see citation below).
MutantDisruption of this gene provides a growth advantage for in vitro growth of H37Rv, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). Non essential gene by Himar1 transposon mutagenesis in H37Rv and CDC1551 strains (see Sassetti et al., 2003 and Lamichhane et al., 2003). Required for growth in C57BL/6J mouse spleen, by transposon site hybridization (TraSH) in H37Rv (See Sassetti and Rubin, 2003). Required for survival in primary murine macrophages, by transposon site hybridization (TraSH) in H37Rv (See Rengarajan et al., 2005). Non-essential gene for in vitro growth of H37Rv, by Himar1 transposon mutagenesis (See Griffin et al., 2011). M. tuberculosis H37Rv transposon mutant is sensitive to pH 4.5 in 7H9 with Tween or Tyloxapol, but not phosphate-citrate buffer with Tyloxapol (See Vandal et al., 2008); mutant is mildly attenuated in C57BL/6 mice (See Vandal et al., 2009). M. tuberculosis H37Rv Rv2224c transposon mutant shows growth defect in C57BL/6 mice co-infected with mutant and wild-type; is attenuated in C57BL/6 and RAG -/- mice; is more susceptible to lysozyme; shows growth defect in C57BL/6 bone marrow macrophages and secretion of cytokines and chemokines is reduced (See Rengarajan et al., 2008). M. tuberculosis CDC1551 MT2282 (Rv2224c) mutant is attenuated in BALB/c mice (See Lun and Bishai, 2007).
Check for mutants available at TARGET website
Genomic sequence
Feature type Upstream flanking region (bp) Downstream flanking region (bp) Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv2224c|caeA