Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10753271 | Biochemical and Biophysical Research Communications | 2015 | 5 Pages |
Abstract
We have shown that Mg/EGTA (5 mM Mg2+ and 1.5 mM EGTA) could effectively promote the adhesion of integrin αLβ2 to its ligand ICAM-1 but could not promote that of the αMβ2 to denatured BSA. In order to determine the structural differences between αL and αM that specifically contribute to Mg/EGTA sensitivity, a series of αL/αM chimeras were constructed. Our results showed that αLβ2 with αM calf-1 domain completely lost the response to Mg/EGTA activation. In the reverse experiment, αMβ2 would require the presence of both the αL calf-1 and calf-2 domain to initiate the Mg/EGTA sensitivity.
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Authors
Siyu Guan, Ming Cheng, S.K. Alex Law,