Radiometal Labeling of Immunoproteins: Covalent Linkage of 2-(4-Isothiocyanatobenzyl)diethylenetriaminepentaacetic Acid Ligands to Immunoglobulin

被引：118

作者：

Mirzadeh, Saed ^{[1
]}

Brechbiel, Martin W. ^{[1
]}

Atcher, Robert W. ^{[1
]}

Gansow, Otto A. ^{[1
]}

机构：

[1] NCI, Inorgan & Radioimmune Chem Sect, Radiat Oncol Branch, NIH, Bethesda, MD 20892 USA

来源：

BIOCONJUGATE CHEMISTRY | 1990年 / 1卷 / 01期

关键词：

D O I：

10.1021/bc00001a007

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A study was made of the covalent attachment of the bifunctional 2-(4-isothiocyanatobenzyl)diethylenetriaminetetraacetic acid family of chelate ligands to proteins for the purpose of labeling monoclonal antibodies with radiometals. The parameters and the chemical variables examined included pH, reaction period, temperature, and ligand and protein concentrations. It is shown that these variables, with the exception of protein concentration, have significant effects on the rate of protein conjugation. Conjugation of three monoclonal antibodies and human IgG under identical conditions showed only 17% variation. Finally, the effect of the concentration of conjugated IgG on radiolabeling yield was studied.

引用

页码：59 / 65

页数：7

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