Chemical Synthesis of HMGA1a Proteins with Post-translational Modifications via Ser/Thr Ligation
作者:Tianlu Li、Heng Liu、Xuechen Li
DOI:10.1021/acs.orglett.6b03056
日期:2016.11.18
The first chemicalsynthesis of nuclear protein HMGA1a via Ser/Thr ligation is reported. Notably, Hmb (2-hydroxy-4-methoxybenzyl) exhibits crucial improvement of both the difficult coupling during solid phase peptidesynthesis and the poor ligation encountered in proteinsynthesis. These efforts led to preparation of HMGA1a analogs with well-defined phosphorylation and methylation patterns (9 synthetic
据报道,通过Ser / Thr连接进行了核蛋白HMGA1a的首次化学合成。值得注意的是,Hmb(2 - h ydroxy -4- m ethoxy b enzyl)对固相肽合成过程中的困难偶联和蛋白质合成中的不良连接均显示出关键性的改善。这些导致制剂HMGA1a的努力类似物具有良好限定的磷酸化和甲基化模式(总共9个合成的蛋白),因此克服了非均相和组合子固有的问题蛋白p ost-吨ranslational米odifications(翻译后修饰),和促进的研究此类PTM的监管作用。
A reversible protecting group for the amide bond in peptides. Use in the synthesis of ‘difficult sequences’
作者:T. Johnson、M. Quibell、D. Owen、R. C. Sheppard
DOI:10.1039/c39930000369
日期:——
(fluoren-9-ylmethoxycarbonyl) derivatives of Nα-(2-hydroxy-4-methoxybenzyl)amino acids 5 are useful intermediates for the preparation of peptides with reversibly protected (tertiary) peptide bonds; their value in inhibiting interchain association during solid phase peptidesynthesis is demonstrated.
Total Chemical Synthesis and Folding of All-<scp>l</scp> and All-<scp>d</scp> Variants of Oncogenic KRas(G12V)
作者:Adam M. Levinson、John H. McGee、Andrew G. Roberts、Gardner S. Creech、Ting Wang、Michael T. Peterson、Ronald C. Hendrickson、Gregory L. Verdine、Samuel J. Danishefsky
DOI:10.1021/jacs.7b02988
日期:2017.6.7
of hydrophobic binding pockets. Herein, we report a total chemical synthesis of all-l- and all-d-amino acid biotinylated variants of oncogenic mutant KRas(G12V). The protein is synthesized using Fmoc-basedsolid-phasepeptidesynthesis and assembled using combined native chemical ligation and isonitrile-mediated activation strategies. We demonstrate that both KRas(G12V) enantiomers can successfully