DEPOLYMERIZATION OF F-ACTIN BY DEOXYRIBONUCLEASE-1
DEPOLYMERIZATION OF F-ACTIN BY DEOXYRIBONUCLEASE-1
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DOI:
10.1016/0092-8674(76)90203-8
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发表时间:
1976-01-01
期刊:
影响因子:
64.5
通讯作者:
LINDBERG, U
中科院分区:
文献类型:
--
作者:
HITCHCOCK, SE;CARLSSON, L;LINDBERG, U
DNA I causes depolymerization of rabbit filamentous muscle actin to form a stable complex of 1 mol DNAase I:1 mol actin. The regulatory proteins tropomyosin and troponin bind to filamentous actin and slow down but do not prevent the depolymerization. In the absence of ATP, heavy meromyosin binds tightly to actin filaments and blocks completely the DNAase I:actin filament interaction. Action of ATP release heavy meromyosin; DNAase I is then rapidly inhibited and the actin filaments are depolymerized.