Secretory carrier-associated membrane protein 5
Function
Required for the calcium-dependent exocytosis of signal sequence-containing cytokines such as CCL5. Probably acts in cooperation with the SNARE machinery. May play a role in accumulation of expanded polyglutamine (polyQ) protein huntingtin (HTT) in case of endoplasmic reticulum stress by inhibiting the endocytosis pathway.
Sequence Similarities
Belongs to the SCAMP family. SCAMP5 subfamily.
Tissue Specificity
Expressed both by neuronal and non-neuronal tissues. Expressed in brain, stomach, thyroid, spinal cord, lymph node, trachea, adrenal gland, bone marrow and in the different parts of brain. In thyroid tissues, it is expressed by the follicular epithelial cells. In the adrenal gland tissues it is detected in the zona fasciculata of the cortex region (at protein level).
Cellular localization
- Cell membrane
- Multi-pass membrane protein
- Golgi apparatus membrane
- Multi-pass membrane protein
- Golgi apparatus
- trans-Golgi network membrane
- Multi-pass membrane protein
- Recycling endosome membrane
- Multi-pass membrane protein
- Cytoplasmic vesicle
- Secretory vesicle
- Synaptic vesicle membrane
- Multi-pass membrane protein
- Mainly localizes in Golgi apparatus membrane. Upon calcium-triggered exocytosis, it translocates to the cell membrane. Highly enriched in synaptic vesicles (By similarity).
Alternative names
Secretory carrier-associated membrane protein 5, Secretory carrier membrane protein 5, hSCAMP5, SCAMP5