Isolated endosomes from quiescent rat liver contain the signal transduction machinery. Differential distribution of activated Raf-1 and Mek in the endocytic compartment.

Abstract:

:In this study we identify the molecules involved in the MAPK signal transduction pathway (Ras, Raf-1, Mek, Mek-P and MAPK) in highly purified endosomal fractions isolated from rat liver. Biochemical analysis shows that only the early-sorting endocytic compartment contains activated Raf-1 and Mek. Finally, the exogenous administration of EGF led to redistribution of Raf-1 from the caveolin-enriched plasma membrane into the endosomes.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Pol A,Calvo M,Enrich C

doi

10.1016/s0014-5793(98)01517-8

subject

Has Abstract

pub_date

1998-12-11 00:00:00

pages

34-8

issue

1

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(98)01517-8

journal_volume

441

pub_type

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