Protein transport protein Sec24B

Definition:

Component of the coat protein complex II (COPII) which promotes the formation of transport vesicles from the endoplasmic reticulum (ER). The coat has two main functions, the physical deformation of the endoplasmic reticulum membrane into vesicles and the selection of cargo molecules for their transport to the Golgi complex. Plays a central role in cargo selection within the COPII complex and together with SEC24A may have a different specificity compared to SEC24C and SEC24D. May package preferentially cargos with cytoplasmic DxE or LxxLE motifs and may also recognize conformational epitopes.

References:

[1]. Carine Bonnon, et al. Selective export of human GPI-anchored proteins from the endoplasmic reticulum. J Cell Sci. 2010 May 15;123(Pt 10):1705-15. [Content Brief]

[2]. Joseph D Mancias, et al. Structural basis of cargo membrane protein discrimination by the human COPII coat machinery. EMBO J. 2008 Nov 5;27(21):2918-28. [Content Brief]

[3]. Joseph D Mancias, et al. The transport signal on Sec22 for packaging into COPII-coated vesicles is a conformational epitope. Mol Cell. 2007 May 11;26(3):403-14. [Content Brief]

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