Anti-UBA5 antibody [EPR11729]

Supplementary info

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

Activity summary

UBA5 also known as Ubiquitin-like modifier-activating enzyme 5 is an E1 enzyme that plays a mechanical role in activating ubiquitin-fold modifier 1 (UFM1) for protein modification. It has a molecular mass of about 44 kDa and performs its function in the nucleus and cytoplasm within human cells. The expression of UBA5 is not limited to specific tissues; instead it shows widespread expression across many tissues supporting an important role in various cellular processes.

Biological function summary

UBA5 is implicated in the UFM1 conjugation system. This process modifies specific proteins and affects protein stability interaction and degradation. UBA5 operates in complex with UFC1 an E2 enzyme enabling the transfer of UFM1 to target proteins. Its activity is essential for maintaining cellular homeostasis particularly in the endoplasmic reticulum stress response through protein modification and regulation tasks.

Pathways

The UBA5-UFM1 axis integrates into the cellular stress response pathway and the endoplasmic reticulum-associated degradation (ERAD) pathway. Through these pathways UBA5 collaborates with proteins like UFL1 further connecting these pathways by tagging proteins with UFM1 to mark them for degradation or functional modification. The coordination between UBA5 and UFL1 supports efficient protein quality control and maintains cellular equilibrium under stress conditions.

Associated diseases and disorders

The dysfunction or altered expression of UBA5 associates with neurodevelopmental disorders and some cancers. Changes in UBA5 activity can lead to imbalances in protein homeostasis contributing to pathogenic mechanisms in neurodevelopmental disorders where other proteins like EIF4A1 also play a role. In cancer alterations in UBA5 expression may influence tumor progression as seen in cases where UBA5 levels affect pathways that involve p53 an important tumor suppressor protein.