Isolation and identification of partial cDNA clones for endoplasmin, the major glycoprotein of mammalian endoplasmic reticulum |
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Authors: | M J Smith G L Koch |
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Affiliation: | 1. Institute of Entomology, Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Guizhou University, 550025, Guiyang, People’s Republic of China;2. College of Tobacco Science, Guizhou University, 550025, Guiyang, People’s Republic of China;3. College of Environment and Life Sciences, Kaili University, 556011, Kaili, People’s Republic of China |
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Abstract: | The amino acid sequences of peptides isolated from murine endoplasmin showed significant homology (approximately 50%) with sequences in the heat-shock proteins 90 and 83 of yeast and Drosophila, respectively, indicating that they are related proteins. Mixed oligonucleotide probes, deduced from the peptide sequences, were used to isolate cDNAs from a murine liver cDNA library. DNA sequencing confirmed the presence of a coding sequence for one of the endoplasmin peptides, formally establishing the authenticity of the cDNA. The identity of the murine and hamster endoplasmin sequences suggests a level of sequence conservation associated with proteins that perform a structural role in cells. |
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