An improved method for the determination of gamma-carboxyglutamic acid in proteins, bone, and urine.
An improved method for the determination of gamma-carboxyglutamic acid in proteins, bone, and urine.
复制标题
一种测定蛋白质、骨骼和尿液中 γ-羧基谷氨酸的改进方法。
DOI:
10.1016/0003-2697(83)90150-1
复制
发表时间:
1983
影响因子:
2.9
通讯作者:
K. Katayama
中科院分区:
文献类型:
--
作者:
M. Kuwada;K. Katayama
A method of high-performance liquid chromatographic separation of the fluorescence derivative of γ-carboxyglutamic acid (Gla) is presented. Alkaline hydrolysates of protein samples were reacted with o-phthalaldehyde in the presence of ethanethiol for 2 min, and the fluorescence derivative of γ-carboxyglutamic acid was resolved from the other amino acids by a short column packed with silica-based anion exchanger under isocratic conditions. By this method, as low as 200 fmol of γ-carboxyglutamic acid can be quantitatively analyzed within 10 min. The method presented here shortened the analysis time for Gla and was at least 10 times more sensitive than the method we described previously (Anal. Biochem.117, 259–265, 1981). The application of this method to the formic acid-soluble or insoluble γ-carboxyglutamic acid-containing proteins in chicken bone and the concomitant increase of γ-carboxyglutamic acid content in chicken bone with age are reported.
DOI:
10.1016/s0021-9258(18)42960-2
发表时间:
1981-12
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
P. Price;M. Williamson;J. W. Lothringer
通讯作者:
P. Price;M. Williamson;J. W. Lothringer
DOI:
--
发表时间:
1980
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Poser,JW;Esch,FS;Ling,NC;Price,PA
通讯作者:
Price,PA
DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lian,JB;Glimcher,MJ;Roufosse,AH;Hauschka,PV;Gallop,PM;Cohen-Solal,L;Reit,B
通讯作者:
Reit,B