Interaction of ferredoxin-NADP+ reductase with phycobiliproteins in the cyanobacterium Anabaena PCC 7119

被引：1
|
作者：
Mógica, P [1 ]
Bes, MT [1 ]
Blasco, L [1 ]
Fillat, MF [1 ]
Peleato, ML [1 ]
机构：
[1] Univ Zaragoza, Fac Ciencias, Dept Bioquim & Biol Mol & Celular, E-50009 Zaragoza, Spain
来源：
JOURNAL OF PLANT PHYSIOLOGY | 2000年 / 157卷 / 03期
关键词：
Anabaena PCC 7119; ferredoxin-NADP(+) reductase; phycobiliproteins;
D O I：
10.1016/S0176-1617(00)80054-1
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A complex between ferredoxin-NADP(+) reductase(EC 1.18.1.2.) and phycobiliproteins has been isolated from Anabaena PCC 7119. Two proteins of 18 and 12.5 kDa bound to FNR have been sequenced at the amino terminal segment. The 18 kDa polypeptide has been identified as the c-phycocyanin alpha chain, a subunit from the peripheral rods of phycobilisomes. Steady-state kinetics show that complexed FNR increases the K-m for its substrates in all the electron transfer reactions tested, No success has been achieved in chemical cross-linking of FNR or the complex of FNR: phycobiliproteins with the thylakoids.
引用
收藏
页码：321 / 326
页数：6
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