{"product_id":"abcam-ab95932","title":"Abcam, ab95932, Recombinant Human eIF2A protein","description":"\u003cp\u003eSize: 50µg \/ 250µg\u003cbr\u003e\nRecombinant Human eIF2A protein is a Human Full Length protein, in the 1 to 315 aa range, expressed in Escherichia coli, with \u0026gt;85%, suitable for SDS-PAGE, Mass Spec.\u003cbr\u003e\nKey facts\u003cbr\u003e\nPurity:\u0026gt;85% SDS-PAGE,\u003cbr\u003e\nExpression system:Escherichia coli,\u003cbr\u003e\nTags:His tag N-Terminus,\u003cbr\u003e\nApplications:Mass Spec, SDS-PAGESee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,\u003cbr\u003e\nBiologically active:No,\u003cbr\u003e\nAccession:Q9BY44,\u003cbr\u003e\nAnimal free:No,\u003cbr\u003e\nCarrier free:No,\u003cbr\u003e\nSpecies:Human,\u003cbr\u003e\nStorage buffer:pH: 8Constituents: 10% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.316% Tris HCl\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nShipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze \/ thaw cycle\u003c\/p\u003e\n\n\u003cp\u003eSupplementary Information:\u003cbr\u003e\nThis supplementary information is collated from multiple sources and compiled automatically.\u003cbr\u003e\nThe eIF2A also referred to as eukaryotic translation initiation factor 2A is a protein involved in the initiation of mRNA translation. The eIF2A protein is distinct from eIF2α despite the similarity in their names. Its molecular weight is approximately 65 kDa. Expression of eIF2A occurs mainly in the cytoplasm of cells where it participates in the protein synthesis process. eIF2A functions as a mediator that targets the initiator methionylated-tRNA to the small ribosomal subunit in a manner independent from eIF2 complex.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nEIF2A impacts the translation mechanism by facilitating the binding of Met-tRNAi to the ribosome under particular conditions especially during stress responses where canonical eIF2 might be inhibited. It operates independently from the larger eIF2 complex which also includes eIF2β and eIF2γ subunits. This independent activity allows eIF2A to serve as a backup mechanism for translation initiation when the normal pathway is impaired.\u003cbr\u003e\nPathways\u003cbr\u003e\nTranslation regulation involves interaction with cellular stress pathways and the integrated stress response (ISR). eIF2A operates within pathways that respond to physiological stresses such as nutrient deprivation and oxidative stress which trigger alterations in protein synthesis rates. eIF2A is related to the eIF2 kinase which phosphorylates the α subunit of eIF2 leading to a general reduction in translation initiation under stress allowing selective translation of stress-response proteins.\u003cbr\u003e\nIrregularities in eIF2A function link to neurodegenerative diseases such as Alzheimer's disease and metabolic disorders like diabetes. These conditions often involve disruptions in the stress response pathways where eIF2A participates. The protein participates with others like PERK a kinase that phosphorylates eIF2α under endoplasmic reticulum stress contributing to disease-related changes in protein synthesis. By modulating translation under stress eIF2A becomes significant in these pathological contexts.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46843999649961,"sku":"ab95932","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/ar\/products\/abcam-ab95932","provider":"Iright","version":"1.0","type":"link"}