%0 Journal Article
%T FORMATION OF QUINOXALINE FLUOPESCENT DERIVATIVES ON N-TERMINALS OF PROTEINS AND PEPTIDES<br>肽链及蛋白质N-末端喹喔啉类荧光衍生物的形成
%A 赫荣乔
%A 邹承鲁
%J 生物物理学报
%D 1991
%I 
%X The reaction of o-phenylenediamine with Oxoacyl groups on N terminals of the Dixon transaminated proteins and peptides can produce quinoxaline fluorescent derivative, however, the process is somewhat slow. The emission maxima of quinoxaline derivatives of peptides are about 360-365nm with the excitation at about 292-305nm depending upon the kinds of composeed amino acid residues. The quinoxalinyl-insulin has its emission maximum at 353nm by excitation at 318nm. Changes of the fluorescence of quinoxaline derivatives on tripeptides in the ethyl-ene glycol solutions are comparatively different from each other, depending upon the different kinds of residues and the configurations. It appears that the quinoxaline fluorescent derivative on N ternimal of a protein or a peptide be used to study structures and functions of the molecules.
%K 肽链
%K 蛋白
%K N－末端
%K 荧光衍生物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=5E86E445AE6962DC190A853E6646C1A4&yid=116CB34717B0B183&vid=DF92D298D3FF1E6E&iid=38B194292C032A66&sid=8C27CCA578E52082&eid=869B6F3117981EC4&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=1&reference_num=3