Yaguang Hou

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The amino acid 4-fluoro-L-phenylalanine (4F-Phe) was introduced at the positions of Phe6 and Phe22 in the 29-residue polypeptide hormone glucagon by expressing glucagon in E. coli in the presence of an excess of 4F-Phe. Glucagon regulates blood glucose homeostasis by interaction with the glucagon receptor (GCGR), a class B GPCR. By referencing to the 4F-Phe(More)
A disulfide bond that formed between the thiol groups of two spatially close cysteine residues is essential for protein folding, stability, and function (Creighton et al., 1995) (Fass, 2012). Driven by conformational entropy, native disulfide bonds stabilize the conformation of protein molecules (Dill, 1990), while removal of native disulfides usually(More)
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