A cell-free biochemical complementation assay reveals complex and redundant cytosolic requirements for LRP endocytosis.
A cell-free biochemical complementation assay reveals complex and redundant cytosolic requirements for LRP endocytosis.
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无细胞生化互补测定揭示了 LRP 内吞作用复杂且冗余的胞质要求。
DOI:
10.1016/j.yexcr.2005.12.022
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发表时间:
2006
影响因子:
3.7
通讯作者:
Schmid,SandraL
中科院分区:
文献类型:
--
作者:
Miwako,Ishido;Schmid,SandraL
The low density lipoprotein receptor-related protein (LRP) binds multiple, distinct ligands and participates in constitutive endocytosis and signal transduction. Using an in vitro reconstitution system and a new biochemical complementation assay, we have explored the limiting cytosolic requirements for endocytosis of LRP from isolated plasma membranes. We find that clathrin, AP2 and dynamin do not support efficient LRP uptake and that additional factors present in a 30% ammonium sulfate supernatant fraction of bovine brain cytosol (AS supt) are required. Fractionation of the AS supt revealed that multiple and redundant factors are required to support LRP endocytosis. Among these, we identified Hsc70, synaptojanin1 and CRMP-2 by mass spectrometry. Our data suggest that LRP, which bears several distinct endocytic motifs in its cytoplasmic domain, may use multiple pathways for endocytosis in vitro.
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影响因子:
64.8
作者:
Ford, MGJ;Mills, IG;McMahon, HT
通讯作者:
McMahon, HT
影响因子:
4
作者:
Ren, XD;Schwartz, MA
通讯作者:
Schwartz, MA
影响因子:
7.5
作者:
Sandra L. Schmid
通讯作者:
Sandra L. Schmid
DOI:
10.1016/s0021-9258(19)50311-8
发表时间:
1993-06
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
David J. Palmer;J. Helms;C. J. Beckers;C. J. Beckers;L. Orci;J. E. Rothman
通讯作者:
David J. Palmer;J. Helms;C. J. Beckers;C. J. Beckers;L. Orci;J. E. Rothman
影响因子:
4.8
作者:
Hinrichsen, L;Harborth, J;Ungewickell, EJ
通讯作者:
Ungewickell, EJ