Antibodies against σ70 factor specifically recognize the σ factors from other microorganisms

Songwang Hou*, Rui Gong, Huiwen Ma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The immunoreactivity of the antibodies directed against σ70 factor of Escherichia coli RNA polymerase to the cellular protein from the cell lysate of E. coli, Bacterium aerogenes, Staphylococcus aureus, and Streptomyces coelicolor was studied by means of Western bolt. It was found that the antibodies could specifically recognize some cellular proteins of the aforementioned microoganisms. The essentials of the proteins recognized by anti-sigma 70-factor sera was discussed. They were considered as transcirption factors of the RNA polymerase. It was also found that the proteins from Bacterium aerogenes immunoreacted with the antibodies to the sigma 70-factor were similar as that of the proteins from E. coli, either in the immuno-reactivity and in the pattern of molecular weight.

Original languageEnglish (US)
Number of pages1
JournalWuhan Daxue Xuebao/Journal of Wuhan University
Issue number6
StatePublished - Dec 1 1998


  • Antibodies to sigma 70-factor
  • Immuno-recognization
  • Transcription factor

ASJC Scopus subject areas

  • Management of Technology and Innovation

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