Abstract
Lamins A, B and C are the major proteins of mammalian nuclear lamina and have been well studied in BHK-21 cells. By synchronizing BHK-21 cells with aphidicolin, a potent inhibitor of DNA alpha-polymerase, we were able to detect a differential pattern of synthesis for nuclear lamins during the cell cycle. Lamin B starts to be synthesized only in S phase up to mitosis while synthesis of lamins A and C remain stable throughout the cell cycle. The precursor of lamin A see its half-life increase from a reported 63 min in interphase cells to 103 min in G2/M cells.
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