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. 1976 Aug;80(2):413-5.
doi: 10.1093/oxfordjournals.jbchem.a131293.

Isolation of myosin from starfish sperm heads

I Mabuchi
Free article

Isolation of myosin from starfish sperm heads

I Mabuchi. J Biochem. 1976 Aug.
Free article

Abstract

Myosin was extracted and partially purified from the head portion of spermatozoa of the starfish, Asterias amurensis. The sperm myosin showed a specific Ca2+-activated ATPase [EC 3.6.1.3] activity of 0.2 mumoles Pi/min/mg at high ionic strength and pH 6.5. It resembled egg myosin in forming thick filaments, becoming attached to actin filaments. subunit composition, and serological properties.

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