ACHE MOLECULAR-FORMS IN SLOW AND TWITCH CHICKEN MUSCLES

  • 1 January 1978
    • journal article
    • research article
    • Vol. 172  (6) , 1069-1074
Abstract
Molecular forms (5) of AChE [acetylcholinesterase] are present in the slow (ALD) and twitch (PLD) muscles of the chick. These forms have 4 S, 7 S, 11 S, 15 S and 20 S sedimentation coefficients in a sucrose gradient. The heaviest forms, the 20 S and 15 S of AChE, are absent in uninnervated muscles and present in innervated muscles. In innervated muscles, the 20 S and 15 S AChE are present in both nerve-free segments and endplate zones. The 20 S and 15 S which are not specifically associated with the endplate zones in the chick could be considered as a biochemical marker of neuromuscular interactions.

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