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  • Title: Collagenase sensitivity and aggregation properties of Electrophorus acetylcholinesterase.
    Author: Bon S, Massoulié J.
    Journal: Eur J Biochem; 1978 Aug 15; 89(1):89-94. PubMed ID: 212272.
    Abstract:
    Tailed forms of Electrophorus acetylcholinesterase, mainly A (9 S) and C (14.2 S) forms, have been subjected to collagenase treatment. Several steps have been identified, yielding molecules which have lost different portions of the tail, and eventually resulting in separation of the isolated tetramers. These modifications result in the disappearance of the low-ionic strength aggregating properties. The molecules which have retained relatively large fragments of the tail do not aggregate in the same conditions as the intact forms, but still form small aggregates in the presence of high levels of polyanions. A model of the tailed molecules, illustrating the existence of discrete collagenase-sensitive regions in the tail, is discussed.
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