单词	proinsulin
释义	proinsulin noun pro·​in·​su·​lin (ˌ)prō-ˈin(t)-s(ə-)lən  : a single-chain pancreatic polypeptide precursor of insulin that gives rise to the double chain of insulin by cleavage and loss of the middle part of the molecule Example Sentences Recent Examples on the Web At Cardiff University and King’s College London, researchers led by Dr. Mohammad Alhadj Ali isolated a compound called a proinsulin C19 A3 peptide. Melissa Healy, The Seattle Times, 9 Aug. 2017 At Cardiff University and King’s College London, researchers led by Dr. Mohammad Alhadj Ali isolated a compound called a proinsulin C19 A3 peptide. Melissa Healy, latimes.com, 9 Aug. 2017 In the 1950s, insulin was derived from the pancreases of cows and pigs and was thought to be contaminated with another protein, which today is known as proinsulin. Denise Gellene, New York Times, 11 Jan. 2017 Word History First Known Use 1916, in the meaning defined above Medical Definition proinsulin noun pro·​in·​su·​lin (ˈ)prō-ˈin(t)-s(ə-)lən  : a single-chain pancreatic polypeptide precursor of insulin that gives rise to the double chain of insulin by loss of the middle part of the molecule
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