MOM22 is a receptor for mitochondrial targeting sequences and cooperates with MOM19.
MOM22 is a receptor for mitochondrial targeting sequences and cooperates with MOM19.
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MOM22是线粒体靶向序列的受体,并与MOM19合作。
DOI:
10.1002/j.1460-2075.1995.tb00094.x
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发表时间:
1995
期刊:
影响因子:
--
通讯作者:
Roland Lill
中科院分区:
文献类型:
--
作者:
Andreas Mayer;F. Nargang;Walter Neupert;Roland Lill
Recognition of targeting signals is a crucial step in protein sorting within the cell. So far, only a few components capable of deciphering targeting signals have been identified, and insights into the chemical nature of the interaction between the signals and their receptors are scarce. Using highly purified mitochondrial outer membrane vesicles, we demonstrate that MOM22 and MOM19, components of the protein import complex of the outer membrane, bind preproteins at the mitochondrial surface in a reversible fashion. Interaction specifically and directly occurs with the N‐terminal presequence and is abolished after inactivation of either MOM22 or MOM19. Binding is salt sensitive, suggesting that recognition involves electrostatic forces between the positive charges of the presequence and the acidic cytosolic domain of MOM22. MOM19 and MOM22 can be cross‐linked with high efficiency. We propose that the two proteins form a complex which functions as the presequence receptor at the mitochondrial surface and facilitates the movement of preproteins into the translocation pore.
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DOI:
10.1016/s0021-9258(19)84657-4
发表时间:
1989-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
M. Drygas;A. Lambowitz;F. Nargang
通讯作者:
M. Drygas;A. Lambowitz;F. Nargang
DOI:
--
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Cyr,DM;Douglas,MG
通讯作者:
Douglas,MG
影响因子:
11.4
作者:
RAMAGE, L;JUNNE, T;SCHATZ, G
通讯作者:
SCHATZ, G
影响因子:
3.3
作者:
Harkness,TA;Metzenberg,RL;Schneider,H;Lill,R;Neupert,W;Nargang,FE
通讯作者:
Nargang,FE