Abstract:
:We have identified and characterized insulin receptors on Chinese hamster ovary (CHO) cells. Insulin binds in a time, temperature and pH dependent fashion and insulin analogues compete for 125I-insulin binding in order of their biological potencies. Furthermore, two CHO cell glycosylation mutants, B4-2-1, lacking high mannose containing glycoproteins, and Lec 1.3c, lacking complex carbohydrate containing glycoproteins, bind insulin with a much higher and lower affinity respectively than wild type cells. This is the first report of insulin receptors on CHO cells and the first to use glycosylation mutants to study the effects of abnormal carbohydrates on insulin binding.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Podskalny J,McElduff A,Gorden Pdoi
10.1016/s0006-291x(84)80335-6subject
Has Abstractpub_date
1984-11-30 00:00:00pages
70-5issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(84)80335-6journal_volume
125pub_type
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