Anti-EIF2S2/EIF2B antibody [EPR15833(B)] - BSA and Azide free

Supplementary info

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

Activity summary

EIF2S2 also known as eukaryotic translation initiation factor 2 subunit 2 and EIF2B part of eukaryotic translation initiation factor 2B are key players in the initiation of protein synthesis. EIF2S2 is a 38.3 kDa protein and is expressed in various tissues including the brain liver and muscle. These factors form a complex that facilitates the exchange of GDP for GTP on the EIF2 complex important for the delivery of initiator tRNA to the ribosome.

Biological function summary

EIF2S2 and EIF2B are part of the eukaryotic translation initiation factor complex which plays a significant role in protein synthesis regulation under stress conditions. This complex senses cellular stress and decreases global protein synthesis by controlling the phosphorylation status of EIF2 allowing the selective translation of stress response proteins. This mechanism helps cells to conserve resources during unfavorable conditions while still expressing proteins necessary for survival.

Pathways

EIF2S2/EIF2B orchestrates the integrated stress response (ISR) pathway and the unfolded protein response (UPR) pathway. These pathways sense disruptions in protein folding and energy stress respectively. The phosphorylation of EIF2α related to these pathways is an important regulatory step that reduces general protein synthesis and channels the cellular machinery towards resolving stress.

Associated diseases and disorders

Defects in EIF2S2 and EIF2B contribute to disorders such as Vanishing White Matter disease and some cancers. Vanishing White Matter disease linked to mutations in EIF2B affects brain white matter and involves the regulation of stress responses through proteins like EIF2α. In certain cancers abnormalities in the EIF2 pathway can affect cell survival and proliferation linking the protein to tumorigenesis and cancer progression.