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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
FunctionRegulates negatively Rv0445c|SIGK
ProductAnti-sigma factor RskA (regulator of sigma K)
CommentsRv0444c, (MTV037.08c), len: 232 aa. RskA, regulator of SigK (See Said-Salim et al., 2006); C-terminus similar to P12752|Y24K_STRGR hypothetical 24.7 kDa protein from Streptomyces griseus (238 aa), FASTA scores: opt: 207, E(): 2.2e-05, (32.9% identity in 158 aa overlap). Cleaved by Rip|Rv2869c, in M. tuberculosis Erdman (See Sklar et al., 2010).
Functional categoryInformation pathways
ProteomicsIdentified in the membrane fraction of M. tuberculosis H37Rv using 1D-SDS-PAGE and uLC-MS/MS (See Gu et al., 2003). Identified by mass spectrometry in Triton X-114 extracts of M. tuberculosis H37Rv (See Malen et al., 2010). Identified by mass spectrometry in the membrane protein fraction and whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate (See de Souza et al., 2011). Translational start site supported by proteomics data (See Kelkar et al., 2011).
MutantNon-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). Non-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|Rv0444c|rskA