Self-Organization Phenomena in Active Streamings and Subcellular Dynamics

Abstract

Life phenomena are a kind of ordered dynamics appearing in macroscopic systems, living systems. Schrodinger has proposed a molecular mechanism for the organization of life phenomena, i.e., an 'order-from-order' mechanism where ordered dynamics are composed of ordered molecular dynamics, much as the ordered dynamics of a watch is caused by orderly movements of its mechanical elements. In this paper we verify from studies on artificial active streamings in a streaming system reconstituted from rabbit skeletal F-actin and heavy meromyosin that one life phenomenon, active streaming, is caused by the 'orderfrom-order' mechanism. This will be also the case for muscle contraction. Moreover, it is probable that this mechanism generally works in biological motilities. We also clarify that dynamic cooperativity among molecules gives rise to order in molecular dynamics.