INITIAL ELECTRON-TRANSFER IN PHOTOSYNTHETIC REACTION CENTERS OF RHODOBACTER-CAPSULATUS MUTANTS

被引：86

作者：

CHAN, CK

CHEN, LXQ

DIMAGNO, TJ

HANSON, DK

NANCE, SL

SCHIFFER, M

NORRIS, JR

FLEMING, GR

机构：

[1] UNIV CHICAGO,JAMES FRANCK INST,CHICAGO,IL 60637

[2] ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439

[3] ARGONNE NATL LAB,DIV BIOL & MED RES,ARGONNE,IL 60439

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 176卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(91)90045-B

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The stimulated emission decay time constants were measured for a series of Rhodobacter capsulatus reaction centers with site-specific mutations at the symmetry related locations M208 and L181. We report the first mutant (Phe(L181) --> Tyr) that exhibits an initial electron transfer rate faster than the native organism at 295 K, and determine that the tyrosine at position M208 cannot be fully responsible for the unidirectionality of electron transfer.

引用

页码：366 / 372

页数：7

共 23 条

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