A HUMAN HOMOLOG OF THE MITOCHONDRIAL PROTEIN IMPORT RECEPTOR MOM19 CAN ASSEMBLE WITH THE YEAST MITOCHONDRIAL RECEPTOR COMPLEX

被引：56

作者：

SEKI, N

MOCZKO, M

NAGASE, T

ZUFALL, N

EHMANN, B

DIETMEIER, K

SCHAFER, E

NOMURA, N

PFANNER, N

机构：

[1] UNIV FREIBURG, INST BIOL 2, D-79104 FREIBURG, GERMANY

[2] KAZUSA DNA RES INST, CHIBA 292, JAPAN

[3] UNIV FREIBURG, INST BIOCHEM, D-79104 FREIBURG, GERMANY

来源：

FEBS LETTERS | 1995年 / 375卷 / 03期

关键词：

MITOCHONDRION; HUMAN MOM19; PROTEIN SORTING; IMPORT RECEPTOR;

D O I：

10.1016/0014-5793(95)01229-8

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：

Import of preproteins into mitochondria requires transport machineries in both mitochondrial membranes that have been characterized in Saccharomyces cerevisiae and Neurospora crassa By cDNA analysis, we identified a human protein of 16 kDa with significant overall homology to the fungal mitochondrial import receptor Mom19, including the three typical characteristics: a hydrophobic N-terminal segment, a tetratrico peptide motif in the middle and a negatively charged C-terminus, The human Mom19 homolog is expressed in all tissues analyzed. When synthesized in vitro, the human Mom19 homolog is targeted to isolated yeast mitochondria and specifically associates with the outer membrane receptor complex, suggesting that indeed a mitochondrial import receptor was identified.

引用

页码：307 / 310

页数：4

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