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The retention signal for soluble proteins of the endoplasmic reticulum

✍ Scribed by Pelham, Hugh R.B.

Book ID
120824367
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
614 KB
Volume
15
Category
Article
ISSN
0968-0004

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✦ Synopsis

The lumen of the endoplasmic reticulum (ER) contains a number of soluble proteins, many of which help the maturation of newly synthesized secretory proteins. Retention of these resident proteins in the ER is dependent on a carboxy-terminal signal, which in animal cells is usually Lys-Asp-Glu-Leu (KDEL). This signal is thought to be recognized by a membrane-bound receptor that continually retrieves the proteins from a later compartment of the secretory pathway and returns them to the ER.

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