DEVELOPMENT OF CHICKEN ANTIBODIES TOWARD THE HUMAN THYROTROPIN RECEPTOR PEPTIDES AND THEIR BIOACTIVITIES

被引:51
作者
OHMORI, M
ENDO, T
ONAYA, T
机构
[1] The Third Department of Internal Medicine, University of Yamanashi Medical School, 409-38, Tamaho
关键词
D O I
10.1016/0006-291X(91)90534-E
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We have synthesized four peptides (P2, P4, E3 and P1) corresponding to different segments of human thyrotropin (TSH) receptor. We have obtained antibodies by immunizing them to chickens, and antibodies are evaluated for their thyroid stimulating antibody (TSAb), thyroid stimulation blocking antibody (TSBAb) and TSH-binding inhibitor immunoglobulin (TBII) activities. None of the antibodies had TSAb activity. Antibodies against human TSH receptor specific region such as P2 and P4 (P2: No. 372-397, P4: No. 341-358) had TSBAb and TBII activities. Anti-E3 antibody (E3: the third putative extracellular loop, No. 649-661) had only TSBAb activity. Anti-P1 antibody (P1: high homology with pig LH CG receptor, No. 398-417), however, had none. These results suggest that anti-TSH receptor antibodies to different antigenic epitopes show heterogeneity in their biological activities. © 1991.
引用
收藏
页码:399 / 403
页数:5
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