Insertion of a transmembrane protein

Videonummer 11936421
Insertion of a transmembrane protein. Animation showing the process by which a protein (here a polypeptide chain) is synthesised in the endoplasmic reticulum and inserted into a cell membrane. At the end of the process, this protein has part of its structure inside the cell and part outside the cell. This is known as a transmembrane protein. The animation starts with synthesis of the polypeptide chain (red) on a ribosome (blue). The next stage (ribosome removed for clarity) involves the insertion of the polypeptide chain into the cell membrane (phospholipid bilayer). The signal regions (yellow and blue) on the polypeptide chain stop this transfer and trigger the cleavage (scissor symbol). The result is a polypeptide chain having an extracellular domain and an intracellular domain. For this animation without labels, see K004/0940.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Biocosmos / Francis Leroy & Guillaume Wilmotte
Modell-Rechte: nicht erforderlich
Länge: 40 Sekunden
Seitenverhältnis: 16:9
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