THE ENHANCEMENT OF THE EXTRACELLULAR CARBOXYL-TERMINAL DOMAIN OF HUMAN GROWTH-HORMONE RECEPTOR ON GROWTH-HORMONE DEPENDENT RESPONSES OF 3T3-F442A CELLS
A. Asakura et al., THE ENHANCEMENT OF THE EXTRACELLULAR CARBOXYL-TERMINAL DOMAIN OF HUMAN GROWTH-HORMONE RECEPTOR ON GROWTH-HORMONE DEPENDENT RESPONSES OF 3T3-F442A CELLS, Biomedicine & pharmacotherapy, 48(1), 1994, pp. 35-39
Citations number
12
Categorie Soggetti
Pharmacology & Pharmacy","Medicine, Research & Experimental
We have expressed the carboxyl-terminal domain (C domain) of the cytok
ine receptor homologous (CRH) region of human growth hormone receptor
(hGHR) as a protein fused with maltose binding protein (MBP) in E coli
. Following proteolytic cleavage by restriction protease factor Xa, th
e C domain was purified to homogeneity as a monomeric form. The purifi
ed C domain appears to be folded properly judged by NMR spectrum and t
he far-UV circular dichroism (CD) spectrum. The C domain did not exhib
it ligand binding activity. However, the C domain enhanced the human g
rowth hormone (hGH) dependent differentiation of preadipose 3T3-F442A
cells into adipose cells and the phosphorylation of a 34 kDa membrane
protein.