Abstract
The nuclei and nucleoli from rat pancreas were isolated and extracted successively with 0.14 M NaCl, 1 M NaCl, and 0.1 N NaOH. In the 0.14 M NaCl and 0.1 N NaOH extracts agar electrophoresis revealed differences between the nucleolar proteins and those from the non-nucleolar part of the nucleus.
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