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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
FunctionCatalyzes acylation of L-homoserine. Involved in biosynthesis of methionine; HTA variant; first step [catalytic activity: acetyl-CoA + L-homoserine = CoA + O-acetyl-L-homoserine].
ProductProbable homoserine O-acetyltransferase MetA (homoserine O-trans-acetylase) (homoserine transacetylase) (HTA)
CommentsRv3341, (MTV016.41), len: 379 aa. Probable metA, homoserine o-acetyltransferase (see citation below), equivalent to O32874|METX_MYCLE|meta|ML0682|MLCB1779.11 homoserine O-acetyltransferase from Mycobacterium leprae (382 aa), FASTA scores: opt: 2263, E(): 9.2e-129, (85.0% identity in 380 aa overlap). Also highly similar to many e.g. O68640|METX_CORGL|meta from Corynebacterium glutamicum (Brevibacterium flavum) (379 aa), FASTA scores: opt: 1135, E(): 5.9e-61, (48.5% identity in 371 aa overlap); Q9AAS1|CC0525 from Caulobacter crescentus (382 aa), FASTA scores: opt: 860, E(): 2e-44, (40.5% identity in 363 aa overlap); P94891|METX_LEPME from Leptospira meyeri (379 aa), FASTA scores: opt: 787, E(): 4.9e-40, (38.2% identity in 385 aa overlap); etc. Belongs to the ab hydrolase family, HTA subfamily.
Functional categoryIntermediary metabolism and respiration
ProteomicsIdentified in the cell membrane fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005).
TranscriptomicsDNA microarrays detect expression in M. tuberculosis H37Rv in vivo (in BALB/c and SCID mice) but not in vitro (in 7H9 medium) (See Talaat et al., 2004).
MutantEssential 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
Genomic sequence
Feature type Upstream flanking region (bp) Downstream flanking region (bp) Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3341|metA