Rapid degradation of the presequence of the F1β precursor of the ATP synthase inside mitochondria

被引:16
作者
Ståhl, A [1 ]
Pavlov, PF [1 ]
Szigyarto, C [1 ]
Glaser, E [1 ]
机构
[1] Stockholm Univ, Dept Biochem, Arrhenius Labs Nat Sci, S-10691 Stockholm, Sweden
关键词
protein import; proteolysis; signal peptide;
D O I
10.1042/bj3490703
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
We have investigated the fate of the presequence of an overexpressed protein derived from the precursor of the F(1)beta subunit of ATP synthase after import and processing in mitochondria. Our studies revealed a rapid degradation of the presequence inside mitochondria catalysed by matrix-located protease(s). In contrast, the mature portion of the precursor was not degraded. This is the first experimental evidence of the rapid degradation of the F(1)beta a mitochondrial presequence in organello after in vitro import and processing.
引用
收藏
页码:703 / 707
页数:5
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