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Guanine nucleotide exchange factor for eukaryotic initiation factor-2. Cloning of cDNA for the delta-subunit of
Biochimica Et Biophysica Acta
|March 1, 1994
Abstract:
Peptide sequence data for rabbit eIF-2B delta were obtained and used to design redundant oligonucleotides for PCR. RNA was isolated from rabbit liver and used to direct the synthesis of total cDNA. A rabbit eIF-2B delta transcript was then amplified by PCR and sequenced. The PCR product was used to isolate a clone from a rabbit liver cDNA library. RACE (rapid amplification of cDNA ends) was used to obtain further 5' sequence. Subsequently, a full length cDNA was obtained from a rabbit reticulocyte library. PCR was used to confirm that the sequence is the same for the liver factor. The sequence obtained shows strong homology to that of yeast eIF-2B delta, the GCD2 gene product.