File:SRPFunction2.png

The classical function of SRP in translation-translocation. A membrane separates the cytosol from the endoplasmic reticulum. A ribosome (light gray with A, P, and E sites) synthesizes a protein with a signal peptide (green) encoded by messenger RNA (indicated by a line with 5'- and 3-ends). The elongated SRP (blue), with its large (LD) and small (SD) domains, forms a complex which the membrane-resident SRP receptor (SR). When SRP separates, the protein crosses the membrane through a channel or translocon. The signal peptide may be removed by signal peptide peptidase (SP) and the protein modified by oligosaccharyl transferase (OT).

I created this work entirely by myself.

Czwieb (talk)

See below.