Reactive DNA: 6-methylsulphoxypurine used for site-specific and chemical crosslinking with cysteine and its peptide
作者:Yao-Zhong Xu
DOI:10.1016/s0040-4020(97)10269-1
日期:1998.1
A novel method is described for site-specific and chemicalcrosslinking of oligodeoxynucleotides containing 6-methylsulphoxypurine with cysteine or peptides containing cysteine. 6-Methylsulphoxy group on purine is stable in aqueous solution, but easily replaceable by the thiol group of cysteine and glutathione. A mechanism of the reaction is proposed, and potential applications are discussed with a