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Overview

Uniprot IDF1RFL6
Protein NameTranslation initiation factor eIF2B subunit alpha
Gene NameEIF2B1
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
141 LEAAVAAKKRFSVYI

Function

Acts as a component of the translation initiation factor 2B (eIF2B) complex, which catalyzes the exchange of GDP for GTP on eukaryotic initiation factor 2 (eIF2) gamma subunit. Its guanine nucleotide exchange factor activity is repressed when bound to eIF2 complex phosphorylated on the alpha subunit, thereby limiting the amount of methionyl-initiator methionine tRNA available to the ribosome and consequently global translation is repressed

Protein Sequence

10 ELIEYFKSQM 20 KEDPDMASAV 30 AAIRTLLEYL 40 KRDKGETIQG 50 LRANLTSAIE 60 TLCGVDSSVA 70 VSSGGELFLR 80 FISLTSLEYS 90 DYSKCKKIMI 100 ERGEIFLRRI 110 SLSRKKIADM 120 CHTFIKDGAR 130 ILTHAYSRVV 140 LRVLEAAVAA 150 KKRFSVYITE 160 SQPDLSGKKM 170 AKALCHLNVP 180 VTVVLDAAVG 190 LEPTRWPYAP 200 KHRTSLFMLL 210 QRVSSLYGSS H

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005829 cytosol
Molecular Function GO:0003743 translation initiation factor activity

Reference

[1] Fan S, Zhou R, Wen H, Ye H, Ma S et al.. Global profiling of protein lactylome in porcine granulosa cells.. J Ovarian Res 18(1):177. 2025 Aug 8. PMID: 40781717.