Chloroplast NADH dehydrogenase from Pisum sativum:: Characterization of its activity and cloning of ndhK gene

被引:11
作者
Elortza, F [1 ]
Asturias, JA [1 ]
Arizmendi, JM [1 ]
机构
[1] Euskal Herriko Unibertsitatea, Biokimika & Biol Mol Saila, Bilbao 48080, Spain
关键词
chlororespiration; complex I; cyclic electron transport; NAD(P)H dehydrogenase (EC 1.6.99.3); ndh gene; Pisum sativum;
D O I
10.1093/oxfordjournals.pcp.a029522
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The pea chloroplast ndhK gene coding for a component of a NADH-plastoquinone oxidoreductase has been cloned and sequenced. This gene codes for a polypeptide of 227 amino acids and a predicted molecular mass of 25,495 Da which belongs to the family of the 20 kDa PSST subunit of the bovine mitochondrial complex I. A fragment of this gene has been overexpressed in Escherichia coli, and antibodies against the expressed polypeptide recognize a protein of the predicted molecular mass from pea thylakoid membranes. This polypeptide is a component of a protein complex with NADH dehydrogenase activity and is not associated with ferredoxin-NADP(+) reductase.
引用
收藏
页码:149 / 154
页数:6
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