Component of the COPII coat, that covers ER-derived vesicles involved in transport from the endoplasmic reticulum to the Golgi apparatus. COPII acts in the cytoplasm to promote the transport of secretory, plasma membrane, and vacuolar proteins from the endoplasmic reticulum to the Golgi complex. COPII is composed of at least five proteins: the Sec23/24 complex, the Sec13/31 complex and Sar1. Interacts with SEC23IP. Interacts with HTR4. Interacts with SLC6A4. Interacts with SEC16A. Belongs to the SEC23/SEC24 family. SEC23 subfamily. Note: This description may include information from UniProtKB.
Protein type: Motility/polarity/chemotaxis
Cellular Component: Golgi membrane; endoplasmic reticulum membrane; COPII vesicle coat; endoplasmic reticulum; perinuclear region of cytoplasm; smooth endoplasmic reticulum membrane; cytosol
Molecular Function: protein binding; zinc ion binding
Biological Process: vesicle-mediated transport; COPII coating of Golgi vesicle; intracellular protein transport; antigen processing and presentation of peptide antigen via MHC class I; ER to Golgi vesicle-mediated transport; cellular protein metabolic process; antigen processing and presentation of exogenous peptide antigen via MHC class II; protein amino acid N-linked glycosylation via asparagine; post-translational protein modification
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.