Covalent change of major intrinsic polypeptide (MIP26K) of lens membrane during human senile cataractogenesis

L. Takemoto, M. Takehana

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17 Citations (Scopus)


Polyclonal antisera have been made against synthetic peptides corresponding to the C-terminal octapeptide and N-terminal nonapeptide of bovine MIP26K. Western blot analysis demonstrated significant binding of the C-terminal antiserum to MIP26K of both normal and cataractous human lens. In contrast, the N-terminal antiserum bound to MIP26K of normal lenses, but failed to bind to MIP26K of 7 out of 10 cataractous lenses studied. These results demonstrate for the first time, a covalent change in MIP26K during human cataractogenesis, and strongly suggest that the location of this change is in the N-terminal region of the polypeptide.

Original languageEnglish
Pages (from-to)965-971
Number of pages7
JournalBiochemical and Biophysical Research Communications
Issue number3
Publication statusPublished - 1986 Mar 28


ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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