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mia3
| MIA family member 3, ER export factor | |
| Gene namei | MIA3 (FLJ39207, KIAA0268, TANGO, TANGO1, UNQ6077) |
|---|---|
| Tissue specificityi |
Low tissue specificity
|
| Single cell type specificityi |
Low cell type specificity
|
| Blood specificityi |
Low immune cell specificity
|
| Brain specificityi |
Low human brain regional specificity
|
| Cancer prognostic summary |
Prognostic marker in renal cancer (unfavorable)
|
| Predicted locationi |
Intracellular, Membrane (different isoforms)
|
| Subcellular summaryi |
Located in Vesicles (Single cell variability)
|
| Protein function (UniProt)i | Plays a role in the transport of cargos that are too large to fit into COPII-coated vesicles and require specific mechanisms to be incorporated into membrane-bound carriers and exported from the endoplasmic reticulum. This protein is required for collagen VII (COL7A1) secretion by loading COL7A1 into transport carriers. It may participate in cargo loading of COL7A1 at endoplasmic reticulum exit sites by binding to COPII coat subunits Sec23/24 and guiding SH3-bound COL7A1 into a growing carrier. Does not play a role in global protein secretion and is apparently specific to COL7A1 cargo loading. However, it may participate in secretion of other proteins in cells that do not secrete COL7A1. It is also specifically required for the secretion of lipoproteins by participating in their export from the endoplasmic reticulum 1, 2. Required for correct assembly of COPII coat components at endoplasmic reticulum exit sites (ERES) and for the localization of SEC16A and membrane-bound ER-resident complexes consisting of MIA2 and PREB/SEC12 to ERES 3. show less |
| Biological process (UniProt)i | ER-Golgi transport, Exocytosis, Protein transport, Transport |