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virulence, detoxification, adaptation
information pathways
cell wall and cell processes
stable RNAs
insertion seqs and phages
PE/PPE
intermediary metabolism and respiration
unknown
regulatory proteins
conserved hypotheticals
lipid metabolism
pseudogenes
General annotation
TypeCDS
FunctionInvolved in cell wall mycoloylation. Proteins of the antigen 85 complex are responsible for the high affinity of mycobacteria to fibronectin. Possesses a mycolyltransferase activity required for the biogenesis of trehalose dimycolate (cord factor), a dominant structure necessary for maintaining cell wall integrity.
ProductSecreted antigen 85-a FbpA (mycolyl transferase 85A) (fibronectin-binding protein A) (antigen 85 complex A)
CommentsRv3804c, (MT3911, MTV026.09c), len: 338 aa. FbpA (alternate gene names: mpt44, 85A), precursor of the 85-a antigen (fibronectin-binding protein A) (mycolyl transferase 85A) (see citations below), identical to P17944|P17996|FBPA|MPT44 antigen 85-a precursor from Mycobacterium bovis (338 aa), FASTA scores: opt: 2341, E(): 1.2e-132, (100.0% identity in 338 aa overlap); and highly similar to other Mycobacterial antigen precursors e.g. O52956|A85A_MYCAV|FBPA antigen 85-a precursor (85A) from Mycobacterium avium (347 aa), FASTA scores: opt: 1987, E(): 1.7e-111, (82.55% identity in 338 aa overlap); Q05861|A85A_MYCLE|FBPA|ML0097 antigen 85-a precursor (85A) from Mycobacterium leprae (330 aa), FASTA scores: opt: 1936, E(): 1.9e-108, (83.0% identity in 329 aa overlap); O06052|A85A_MYCGO|FBPA antigen 85-a precursor (85A) from Mycobacterium gordonae (339 aa), FASTA scores: opt: 1932, E(): 3.3e-108, (80.45% identity in 338 aa overlap); etc. Also highly similar to P31952|A85B_MYCTU|FBPB|Rv1886c|MT1934|MTCY180.32 secreted antigen 85-B from Mycobacterium tuberculosis (325 aa), FASTA scores: opt: 1830, E(): 3.9e-102, (78.85% identity in 317 aa overlap); P31953|A85C_MYCTU|FBPC|MPT45|Rv0129c|MTCI5.03c|FBPC2 secreted antigen 85-C from Mycobacterium tuberculosis (340 aa), FASTA scores: opt: 1597, E(): 3.4e-88, (67.25% identity in 336 aa overlap). Predicted possible vaccine candidate (See Zvi et al., 2008).
Functional categoryLipid metabolism
ProteomicsCorresponds to spots 3_494 and 3_496 identified in culture supernatant by proteomics at the Max Planck Institute for Infection Biology, Berlin, Germany, and spot 3804c identified in short term culture filtrate by proteomics at the Statens Serum Institute (Denmark) (see proteomics citations). 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; predicted transmembrane protein (See Gu et al., 2003). Identified in the culture supernatant of M. tuberculosis H37Rv using mass spectrometry and Edman degradation (See Mattow et al., 2003). Identified in the cell wall fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Predicted secreted protein - identified in culture filtrates of M. tuberculosis H37Rv; signal peptide predicted and cleavable signal sequence confirmed experimentally (See Malen et al., 2007). Identified in the culture filtrate of M. tuberculosis H37Rv using LC-MS/MS; antigen recognized by serum pool from tuberculosis patients (See Malen et al., 2008). 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).
TranscriptomicsDNA microarrays and qRT-PCR show higher level of expression in M. tuberculosis H37Rv than in phoP|Rv0757 mutant (See Walters et al., 2006).
MutantEssential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Non-essential gene 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 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
TypeStartEndOrientation
CDS42656424266658-
Genomic sequence
Feature type Upstream flanking region (bp) Downstream flanking region (bp) Update
       
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3804c|fbpA
MQLVDRVRGAVTGMSRRLVVGAVGAALVSGLVGAVGGTATAGAFSRPGLPVEYLQVPSPSMGRDIKVQFQSGGANSPALYLLDGLRAQDDFSGWDINTPAFEWYDQSGLSVVMPVGGQSSFYSDWYQPACGKAGCQTYKWETFLTSELPGWLQANRHVKPTGSAVVGLSMAASSALTLAIYHPQQFVYAGAMSGLLDPSQAMGPTLIGLAMGDAGGYKASDMWGPKEDPAWQRNDPLLNVGKLIANNTRVWVYCGNGKPSDLGGNNLPAKFLEGFVRTSNIKFQDAYNAGGGHNGVFDFPDSGTHSWEYWGAQLNAMKPDLQRALGATPNTGPAPQGA
      
Bibliography