TISSUE DISTRIBUTION OF INSULIN-LIKE GROWTH-FACTOR RECEPTORS IN THE TURKEY

被引:21
作者
MCFARLAND, DC
FERRIN, NH
GILKERSON, KK
PESALL, JE
机构
来源
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY | 1992年 / 103卷 / 03期
关键词
D O I
10.1016/0305-0491(92)90377-4
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
1. The distribution and relative insulin-like growth factor (IGF) binding capacities of membranes derived from 14 tissues of the turkey were examined. 2. Affinity cross-linking analyses using [I-125]IGF-I and [I-125]IGF-II with membranes derived from the liver, pectoralis major muscle, gizzard, heart and brain indicated that both IGFs interact with only type-I IGF receptors on these tissues. 3. There was no evidence for the existence of a type-II IGF receptor in any tissue. 4. Although considerable variation was detected in the molecular weights of the IGF receptor alpha subunits between tissues (1 12.2-132.9 kDa), these differences did not appear to influence receptor-ligand affinities.
引用
收藏
页码:601 / 607
页数:7
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