Electric properties of photoaffinity-labelled pancreatic A-subtype cholecystokinin.

Abstract

Although the isoelectric point of a protein is very important, electric focusing of intrinsic membrane proteins in polyacrylamide or agarose gels often fails. The recently introduced Bio-Rad Rotofor cell allowed isoelectric focusing of such a protein, cholecystokinin (CCK) receptor. Both the isoelectric point and the molecular weight (Mr) of pancreatic CCK… (More)

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