نتایج جستجو برای: preproinsulin
تعداد نتایج: 224 فیلتر نتایج به سال:
By analyzing the effects of single base substitutions around the ATG initiator codon in a cloned preproinsulin gene, I have identified ACCATGG as the optimal sequence for initiation by eukaryotic ribosomes. Mutations within that sequence modulate the yield of proinsulin over a 20-fold range. A purine in position -3 (i.e., 3 nucleotides upstream from the ATG codon) has a dominant effect; when a ...
We report a rare case of permanent neonatal diabetes (PND) due to insulin (INS) gene mutation in a 51-month-old girl who presented with hyperglycemia in the neonatal period. Mutational analysis of KCNJ11 and INS was performed and this detected a novel heterozygous c.38T>G (p.Leu13Arg) INS de novo mutation. The non-conservative change substitutes the highly conserved L(13) residue within the hyd...
Concerning the translation initiation signals in vertebrate mRNAs, both the ATG initiation codon and the sequences flanking the initiation codon are required to direct the position of initiation. A consensus sequence for the signal, (GCC)GCC(A or G)CCATGG, has been proposed, but actual initiation sequences differ from it to a greater or lesser degree. In the present report, the translation init...
PURPOSE The goal of this study was to extend the results of previous immunoassay, immunocytochemistry, and in situ hybridization studies showing the presence of insulin-related peptide in the rat retina by confirming the expression of insulin genes in the rat eye. METHODS Total and poly(A)+ RNA were isolated from whole rat eyes, and separately from the retina, choroid, iris, lens, and vitreou...
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