发明名称 |
THIOACYLATION PEPTIDE SEQUENCING WITH ACYLATION OF THIAZOLINES |
摘要 |
A novel protein micro sequencing method for use in conjunction with the thioacylation degradation of polypeptides and proteins is disclosed. The process involves reaction of the N-terminal amino acid of a polypeptide with an excess of a thioacylating reagent. After sufficient time to insure quantitative coupling and removal of excess reagent, the derivatized polypeptide is subjected to cleavage by acid which affords a 2-substituted-5(4H)-thiazolinone. After removal of excess acid, the thiazolinone is reacted with a small excess of a fluorescent or enhanced ultraviolet absorbance reagent having a reactive carboxylic acid chloride, sulfonic acid chloride, chloroformate, isocyanate or anhydride functionality, in the presence of a tertiary amine catalyst, to yield the corresponding 5-O-acyl-2-(substituted)thiazole derivative, detectable by enhanced ultraviolet absorbance or fluorescence emission at extremely low concentration thereby providing a method of sequencing very small amounts of protein. |
申请公布号 |
WO8908835(A1) |
申请公布日期 |
1989.09.21 |
申请号 |
WO1989US00946 |
申请日期 |
1989.03.09 |
申请人 |
BIO-AFFINITY SYSTEMS, INC. |
发明人 |
STOLOWITZ, MARK, L.;DIXIT, VYAS, M.;KESICKI, EDWARD, A. |
分类号 |
C07K1/12;G01N33/68;(IPC1-7):G01N21/64 |
主分类号 |
C07K1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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