Looking for Ab to LFA-1 in high-avidity state.

[Wuxiong Cao]

I understand that the traditional way to measure the affinity of LFA-1 to 
ICAM-1 is counting the number of cells bound to ICAM-1 plates.  But could 
anyone in the net tell me if there is an Ab specific only for the high (or
low) affinity LFA-1?  If there is an Ab like that, where can I find it?
Please send e-mail to wc7h at virginia.edu
Thank you very much.

Wuxiong Cao