Beutel Kathleen M, Peacock-López Enrique
Department of Chemistry, Williams College, Williamstown, Massachusetts 01267, USA.
J Chem Phys. 2007 Mar 28;126(12):125104. doi: 10.1063/1.2716396.
The authors consider a minimal cross-catalytic self-replicating system of only two cross-catalytic templates that mimics the R3C ligase ribozyme system of Dong-Eu and Joyce [Chem. Biol. 11, 1505 (2004)]. This system displays considerably more complex dynamics than its self-replicating counterpart. In particular, the authors discuss the Poincare-Andronov-Hopf bifurcation, canard transitions, excitability, and hysteresis that yield birhythmicity between simple and complex oscillations.
作者考虑了一个仅由两个交叉催化模板组成的最小交叉催化自我复制系统，该系统模仿了董鄂和乔伊斯的R3C连接酶核酶系统[《化学生物学》11, 1505 (2004)]。该系统显示出比其自我复制对应物更为复杂的动力学。特别是，作者讨论了庞加莱 - 安德罗诺夫 - 霍普夫分岔、鸭式转变、兴奋性和滞后现象，这些现象在简单振荡和复杂振荡之间产生了双节律性。
