Sec61

Sec61 is an endoplasmic reticulum (ER) membrane protein translocator (aka translocon). It is a doughnut shaped pore through the membrane with 3 major subunits (heterotrimeric). It has a region called the plug that blocks transport into or out of the ER. This plug is displaced when the hydrophobic region of a nascent polypeptide interacts with another region of Sec61 called the seam, allowing translocation of the polypeptide into the ER lumen.

Genes

• SEC61A1
• SEC61A2
• SEC61B
• SEC61G

References

• Alberts, Bruce et al. Molecular Biology of the Cell. Garland, 2002. ISBN 0-8153-3218-1

External links

• MeSH SEC61+protein