On the variation of the major nuclear envelope (lamina) polypeptides

Keith Ray Shelton, Valerie Hope Guthrie, David Lee Cochran

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Three polypeptides which predominate in nuclear envelope and nuclear pore complex-lamina fractions are usually identified by their migration rates in sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Unfortunately, their migration relative to proteins frequently used as molecular weight standards can vary significantly under different electrophoresis conditions. However, the three maintain the same order of migration. They have been separated on the basis of both isoelectric point and apparent molecular weight and characterized by their tryptic peptides. Their identity as unique proteins has been established. One appears to be a cleavage product of another while the third has regions of unique sequence. This cleavage model is supported by an in vitro cleavage reaction.

Original languageEnglish (US)
Pages (from-to)867-872
Number of pages6
JournalBiochemical and Biophysical Research Communications
Issue number3
StatePublished - Apr 14 1980
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Biology
  • Biophysics
  • Biochemistry
  • Cell Biology


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