Antigenic Probes Locate a Serum-gelsolin-interaction Site on the C-terminal Part of Actin
Overview
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The implication of part of the C-terminal of actin (within the 285-375 sequence) in the interaction of serum gelsolin was investigated by the use of specific antibodies. These antibodies were directed against two or three discrete epitopes, one of which was specific for skeletal-muscle actin. Some of these epitopes were found to be near the serum gelsolin-actin interface. Thus it can be assumed that part of the C-terminal of actin is exposed at the barbed end of the actin filament. The interaction between tropomyosin and actin was also studied.
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