Mutational analysis of the human KDEL receptor: distinct structural requirements for Golgi retention, ligand binding and retrograde transport.

Abstract excerpt

The KDEL receptor is a seven-transmembrane-domain protein that is responsible for the retrieval of endoplasmic reticulum (ER) proteins from the Golgi complex. It is a temporary resident of the Golgi apparatus: upon binding a KDEL-containing ligand, it moves to the ER, where the ligand is released. We have expressed mutant forms of the human receptor in COS cells and examined their intracellular locations and...

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