{PDOC00970} {PS01262; IF1A} {BEGIN} ********************************************* * Eukaryotic initiation factor 1A signature * ********************************************* Eukaryotic translation initiation factor 1A (eIF-1A) [1] (formerly known as eiF-4C) is a protein that seems to be required for maximal rate of protein biosynthesis. It enhances ribosome dissociation into subunits and stabilizes the binding of the initiator Met-tRNA to 40S ribosomal subunits. eIF-1A is a hydrophilic protein of about 15 to 17 Kd. Archaebacteria also seem to possess a eIF-1A homolog. As a signature pattern, we selected a conserved region in the central section of these proteins. -Consensus pattern: [IMVALH]-x-G-x-[GSDENK]-[KRHFW]-x(4)-[CL]-x-D-G-x(2)-[RY]- x(2)-[RH]-[IL]-x-G -Sequences known to belong to this class detected by the pattern: ALL. -Other sequence(s) detected in Swiss-Prot: NONE. -Last update: December 2004 / Pattern and text revised. [ 1] Wei C.-L., Kainuma M., Hershey J.W.B. "Characterization of yeast translation initiation factor 1A and cloning of its essential gene." J. Biol. Chem. 270:22788-22794(1995). PubMed=7559407 -------------------------------------------------------------------------------- PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see https://prosite.expasy.org/prosite_license.html -------------------------------------------------------------------------------- {END}