STUDY OF AN ERROR-PRONE HYPERCYCLE FORMED FROM 2 KINETICALLY DISTINGUISHABLE SPECIES

被引:4
作者
ANDRADE, MA [1 ]
GARCIATEJEDOR, AJ [1 ]
MONTERO, F [1 ]
机构
[1] UNIV COMPLUTENSE MADRID, FAC CIENCIAS QUIM, DEPT BIOQUIM & BIOL MOLEC I, E-28040 MADRID, SPAIN
关键词
PREBIOTIC EVOLUTION; HYPERCYCLE; ERROR THRESHOLD;
D O I
10.1016/0301-4622(91)85028-O
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Asymmetry within both the amplification factor values (A(k)) and cross-catalytic hypercyclic constant (K(jk)) and its influence on the stability of a two-membered error-prone hypercycle has been exhaustively studied from a deterministic point of view and the bifurcation diagram as a function of the quality factor (Q) has been obtained. In the more general case, several Q critical values appear, chaning their relative position in the diagram depending on the A(k) and K(jk) values. The order of the Q critical values affects both the general properties of the system and the stability of the hypercyclic organization. The importance of this asymmetry in the selective and evolutionary properties of the hypercycle is also discussed.
引用
收藏
页码:43 / 57
页数:15
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