Anti-SDF4 antibody

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

SDF4 also known as Stromal Cell Derived Factor 4 or Cab45 is a calcium-binding protein with a molecular mass of approximately 45 kDa. It is expressed in the Golgi apparatus of cells in various tissues including pancreas liver and brain. SDF4 plays a mechanical role in sorting and trafficking of proteins through the secretory pathway specifically during the transport of secretory cargo in the Golgi.

Biological function summary

This protein participates in the regulation of calcium-dependent vesicle transport. It does not function as part of a large protein complex but interacts with different proteins in the Golgi for sorting activities. SDF4's ability to bind calcium allows it to modulate interactions necessary for vesicle movement and cargo recognition affecting how proteins exit the Golgi and are distributed to other areas of the cell.

Pathways

Studies show SDF4 is involved in the cellular secretory pathway and calcium signaling pathway. Within these pathways SDF4 interacts with proteins like co-chaperone SIL1 to ensure proper protein folding and trafficking. SDF4 also contributes to vesicle budding processes that are essential for maintaining proper cellular function and homeostasis.

Associated diseases and disorders

Dysfunction of SDF4 links to disorders such as diabetes and neurodegenerative diseases. Abnormal SDF4 expression impacts proteins like insulin in the pancreatic pathway contributing to diabetes through misfolding or improper secretion of insulin. In neurodegenerative conditions SDF4's disrupted association with proteins involved in calcium homeostasis affects synaptic function and neuron health implicating it in diseases like Alzheimer's.