Dillon P F, Aksoy M O, Driska S P, Murphy R A
Science. 1981 Jan 30;211(4481):495-7. doi: 10.1126/science.6893872.
Phosphorylation of the 20,000-dalton light chain of myosin is closely correlated with cross-bridge cycling in arterial smooth muscle. Evidence is presented that dephosphorylation can produce an attached, noncycling cross-bridge (latch-bridge) which is responsible for the high economy of force maintenance in this tissue.
肌球蛋白20,000道尔顿轻链的磷酸化与动脉平滑肌中的横桥循环密切相关。有证据表明，去磷酸化可产生一种附着的、非循环的横桥（闩锁桥），它负责该组织中维持力量的高经济性。
