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Gene Review

SIGC  -  RNA polymerase sigma-subunit C

Arabidopsis thaliana

Synonyms: RNA POLYMERASE SIGMA-SUBUNIT, RNApolymerase sigma-subunit C, SIG3, SIGMA FACTOR 3
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High impact information on SIGC


Biological context of SIGC

  • Transient expression assays using green fluorescent protein demonstrated that N-terminal regions of the SIG2 and SIG3 ORFs could function as transit peptides for import into chloroplasts [1].


  1. Leaf-specifically expressed genes for polypeptides destined for chloroplasts with domains of sigma70 factors of bacterial RNA polymerases in Arabidopsis thaliana. Isono, K., Shimizu, M., Yoshimoto, K., Niwa, Y., Satoh, K., Yokota, A., Kobayashi, H. Proc. Natl. Acad. Sci. U.S.A. (1997) [Pubmed]
  2. Characterization of Arabidopsis plastid sigma-like transcription factors SIG1, SIG2 and SIG3. Privat, I., Hakimi, M.A., Buhot, L., Favory, J.J., Mache-Lerbs, S. Plant Mol. Biol. (2003) [Pubmed]
  3. Nucleus-encoded plastid sigma factor SIG3 transcribes specifically the psbN gene in plastids. Zghidi, W., Merendino, L., Cottet, A., Mache, R., Lerbs-Mache, S. Nucleic Acids Res. (2007) [Pubmed]
  4. Tissue-specific and light-dependent expression within a family of nuclear-encoded sigma-like factors from Zea mays. Lahiri, S.D., Yao, J., McCumbers, C., Allison, L.A. Mol. Cell Biol. Res. Commun. (1999) [Pubmed]
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