Spinach chloroplast ATP-dependent endopeptidase Ti-like protease

被引:2
作者
Benesova, M [1 ]
Durcova, G [1 ]
Kuzela, S [1 ]
Kutejova, E [1 ]
Psenak, M [1 ]
机构
[1] SLOVAK ACAD SCI,INST MOLEC BIOL,BRATISLAVA 84251,SLOVAKIA
关键词
spinacia oleracea; chenopodiaceae; spinach; chloroplasts; ATP-dependent protease;
D O I
10.1016/0031-9422(95)00613-3
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
The soluble fraction of spinach chloroplast was used for purification and characterization of an ATP-dependent protease. Purification included Q Sepharose Fast Flow, hydroxylapatite and FPLC Superose 6 column chromatography. The isolated enzyme requires ATP and Mg2+ for stimulation and represents a ubiquitin independent serine protease, containing essential sulphydryl group(s). By using fluorogenic peptides a similarity of chloroplast protease to Escherichia coli Ti protease was observed. The chloroplast protease is immunochemically cross - reactive with the bacterial protease Ti.
引用
收藏
页码:65 / 69
页数:5
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