Evidence for an active dimer of Escherichia coli β galactosidase

C. M. Kaneshiro, C. A. Enns, M. G. Hahn, J. S. Peterson, F. J. Reithel

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


β Galactosidase (EC, prepared from strains ML 308 and K12 3300 of E. coli, dissociated into an inactive monomer in the presence of Ag+. When such a monomer preparation is treated with excess of thiol an enzymically active dimer is formed in addition to an active tetramer. It is suggested that Ag+ may be of value in studies of other multimeric proteins as a mild dissociating agent.

Original languageEnglish (US)
Pages (from-to)433-434
Number of pages2
JournalUnknown Journal
Issue number2
StatePublished - 1975
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology


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