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Actomyosin components of the asymmetric claw closer muscles of californian snapping shrimp

✍ Scribed by Leferovich, John M. ;Stephens, Philip J.

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 320 KB
Volume: 224
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1402240115

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✦ Synopsis

Abstract

The dimorphic claws of the Californian snapping shrimp, Alpheus californiensis, contain an opener and a closer muscle. The closer muscle in the smaller pincer claw is composed of fibers with short and intermediate sarcomere lengths, whereas the closer muscle in the larger snapper claw is composed of fibers with long sarcomeres. Electrophoretic analysis of actomyosin extracts from the closer muscle in each claw revealed some common components. However, the snapper contains two additional components with molecular weights of 25 and 100 daltons.

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