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|Title:||Studies of epidermal growth factor (EGF) receptor in plasma membrane from rat liver and hepatoma tissues|
|Source:||Yang, E.-B.,Mack, P.,Cheng, L.-Y. (1994). Studies of epidermal growth factor (EGF) receptor in plasma membrane from rat liver and hepatoma tissues. Biochemistry and Molecular Biology International 33 (2) : 221-228. ScholarBank@NUS Repository.|
|Abstract:||Plasma membrane purified from Buffalo rat liver tissue not only had the ability to bind 125I-EGF (2.77 pg of EGF/mg of membrane protein), but also exhibited both high (K(d)=0.08 nM) and low (K(d)=5.67 nM) affinity receptors. However, the binding of EGF to hepatoma plasma membrane was insignificant. EGF receptor in plasma membrane from normal liver tissue was identified by ECL Western blotting using monoclonal anti-EGF receptor antibody and phosphorylated via the stimulation of EGF. This phosphorylation was inhibited by genistein, a tyrosine kinase inhibitor. However, these effects were not observed in hepatoma cell membrane. These results suggest that plasma membrane purified from normal rat liver tissue has a high level of functional EGF receptor, whereas, hepatoma plasma membrane lacks the receptor.|
|Source Title:||Biochemistry and Molecular Biology International|
|Appears in Collections:||Staff Publications|
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