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FEBS Lett. 1999 Sep 3;457(3):316-22.

Oligomeric complexes involved in translocation of proteins across the membrane of the endoplasmic reticulum.

Author information

1
Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), Im Neuenheimer Feld 282, D-69120, Heidelberg, Germany.

Abstract

Proteins involved in protein translocation across the membrane of the endoplasmic reticulum assemble into different oligomeric complexes depending on their state of function. To analyse such membrane protein complexes we fractionated proteins of mammalian rough microsomes and analysed them using blue native PAGE and immunoblotting. Among the proteins characterised are the Sec61p complex, the oligosaccharyl transferase (OST) complex, the translocon-associated protein (TRAP) complex, the TRAM and RAMP4 proteins, the signal recognition particle (SRP) and the SRP receptor (SR). Interestingly, the RAMP4 protein, SR and OST complex display more than one oligomeric form.

PMID:
10471800
DOI:
10.1016/s0014-5793(99)01075-3
[Indexed for MEDLINE]
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