Catalyst free hydrazone ligation for protein labeling and modification using electron-deficient benzaldehyde reagents
作者:Yang Xu、Yu Wang、Peiyuan Liu、Guo-Chao Chu、Huajian Xu、Yi-Ming Li、Jun Wang、Jing Shi
DOI:10.1039/c8ob01810c
日期:——
developed an electron-deficient benzaldehyde reagent, which can be easily equipped with various types of bio-functional molecules for catalyst-free hydrazone ligation. The reagent can be equipped with not only small molecules such as fluorescence dyes or drugs, but also macromolecules like PEG. These can be precisely ligated to the C-terminus of proteins by an efficient hydrazone reaction at neutral
Protein Chemical Synthesis by Ligation of Peptide Hydrazides
作者:Ge-Min Fang、Yi-Ming Li、Fei Shen、Yi-Chao Huang、Jia-Bin Li、Yun Lin、Hong-Kui Cui、Lei Liu
DOI:10.1002/anie.201100996
日期:2011.8.8
pH determines selectivity: The ligation of peptide hydrazides is a new method for proteinchemicalsynthesis that is complementary to native chemicalligation. Peptide hydrazides may be the long‐sought reagent equivalent to a “thioester synthon”, one that is stable to the conditions of native chemicalligation.
Direct synthesis of N-terminal thiazolidine-containing peptide thioesters from peptide hydrazides
作者:Kohei Sato、Shoko Tanaka、Kazuki Yamamoto、Yosuke Tashiro、Tetsuo Narumi、Nobuyuki Mase
DOI:10.1039/c8cc03591a
日期:——
We report a simple and promising synthetic method to oxidize peptide hydrazides containing N-terminal thiazolidine as a protected cysteine. This yields the corresponding thioester via a peptide azide without decomposition of the thiazolidine ring. The newly developed protocol was validated by the synthesis of the bioactive peptide LacZα.