Chemical Synthesis of Native S‐Palmitoylated Membrane Proteins Through Removable‐Backbone‐Modification‐Assisted Ser/Thr Ligation
Angewandte Chemie(2020)
摘要
The preparation of native S‐palmitoylated (S‐palm) membrane proteins is one of the unsolved challenges in chemical protein synthesis. Herein, we report the first chemical synthesis of S‐palm membrane proteins by removable‐backbone‐modification‐assisted Ser/Thr ligation (RBM GABA ‐assisted STL). This method involves two critical steps: 1) synthesis of S‐palm peptides by a new γ‐aminobutyric acid based RBM (RBM GABA ) strategy, and 2) ligation of the S‐palm RBM‐modified peptides to give the desired S‐palm product by the STL method. The utility of the RBM GABA ‐assisted STL method was demonstrated by the synthesis of rabbit S‐palm sarcolipin (SLN) and S‐palm matrix‐2 (M2) ion channel. The synthesis of S‐palm membrane proteins highlights the importance of developing non‐NCL methods for chemical protein synthesis.
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关键词
Protein Synthesis
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