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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
FunctionInvolved in AMP biosynthesis (first committed step). Plays an important role in the de novo pathway of purine nucleotide biosynthesis [catalytic activity: GTP + imp + L-aspartate = GDP + phosphate + adenylosuccinate].
ProductProbable adenylosuccinate synthetase PurA (imp--aspartate ligase) (ADSS) (ampsase)
CommentsRv0357c, (MTCY13E10.19c), len: 432 aa. Probable purA, adenylosuccinate synthase, equivalent to AL023514|MLCB4_13 from adenylosuccinate synthetase Mycobacterium leprae (432 aa), FASTA scores: opt: 2555, E(): 0, (87.9% identity in 431 aa overlap). Also highly similar to many bacterial adenylosuccinates synthetases e.g. P12283|PURA_ECOLI adenylosuccinates synthetase from Escherichia coli (431 aa), FASTA scores: E(): 0, (51.1% identity in 425 aa overlap); etc. Belongs to the adenylosuccinate synthetase family.
Functional categoryIntermediary metabolism and respiration
ProteomicsIdentified in the membrane fraction of M. tuberculosis H37Rv using nanoLC-MS/MS (See Xiong et al., 2005). 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). Translational start site supported by proteomics data (See Kelkar et al., 2011).
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|Rv0357c|purA