Protein transport protein Sec61 subunit beta is a protein that in humans is encoded by the SEC61Bgene.[1][2][3]
The Sec61 complex is the central component of the protein translocation apparatus of the endoplasmic reticulum (ER) membrane. Oligomers of the Sec61 complex form a transmembrane channel where proteins are translocated across and integrated into the ER membrane. This complex consists of three membrane proteins- alpha, beta, and gamma. This gene encodes the beta-subunit protein. The Sec61 subunits are also observed in the post-ER compartment, suggesting that these proteins can escape the ER and recycle back. There is evidence for multiple polyadenylated sites for this transcript.[3]
References
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↑Greenfield JJ, High S (Aug 1999). "The Sec61 complex is located in both the ER and the ER-Golgi intermediate compartment". J Cell Sci. 112 (10): 1477–86. PMID10212142.
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Meyer HA, Grau H, Kraft R, et al. (2000). "Mammalian Sec61 is associated with Sec62 and Sec63". J. Biol. Chem. 275 (19): 14550–7. doi:10.1074/jbc.275.19.14550. PMID10799540.
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