Anti-GORASP2/GRASP55 antibody

Supplementary info

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

Activity summary

GORASP2 also known as GRASP55 is a golgi reassembly stacking protein with a mass approximately 55 kDa. It is highly expressed in the Golgi apparatus where it plays an important role in maintaining the structure and function of this organelle. GRASP55 facilitates the stacking of Golgi cisternae which is essential for Golgi apparatus organization. The protein acts alongside its isoform GRASP65 though they function somewhat independently in different Golgi regions.

Biological function summary

GRASP55 controls various cellular processes including the trafficking of proteins and lipids within the cell. It is part of the GRASP complex along with GRASP65 facilitating membrane tethering and fusion events. The protein's function is also linked to its ability to regulate Golgi's response to cellular stress or changes in environment impacting secretion and growth factor availability. In some conditions GRASP55 can influence processes such as autophagy underlining its diverse biological actions within the cell.

Pathways

GRASP55 integrates into significant cellular pathways like the secretory pathway and the autophagy pathway. It interacts with key proteins like golgins and Rab GTPases to assist in vesicle tethering and transport. GRASP55 also closely interacts with p62 a protein that plays a critical role in the selective autophagy pathway. This positions GRASP55 as a contributor to not only the routine processing of cellular materials but also cellular adaptation to stress through autophagy modulation.

Associated diseases and disorders

GRASP55 shows relevance to cancer progression and neurodegenerative diseases. Aberrant expression or dysfunction of GRASP55 can contribute to cancerous transformations by altering cell adhesion and signaling pathways. Its role in autophagy connects it to diseases like Alzheimer's where defective protein processing is a hallmark. The interaction of GRASP55 with proteins such as p62 becomes particularly important as disrupted autophagy pathways are often implicated in neurodegenerative conditions highlighting GRASP55's significant role in both health and disease.