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This report summarizes recent biophysical and protein expression experiments on polypeptides containing the N‐terminus, the first, second, and third transmembrane (TM) domains and the contiguous loops of the α‐factor receptor Ste2p, a G protein‐coupled receptor. The 131‐residue polypeptide Ste2p(G31‐R161), TM1–TM3, was investigated by solution NMR in trifluoroethanol/water. TM1–TM3 contains helical...
Biosynthesis of peptides in heterologous systems is often a prerequisite to biophysical analyses. Large amounts of peptides, in particular portions of membrane proteins, are needed to optimize conditions for secondary and tertiary structure analysis. Chemical synthesis of these peptides is limited by their high hydrophobicity and also due to the need to incorporate isotopic labels for high resolution...
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