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. Author manuscript; available in PMC: 2012 Apr 8.
Published in final edited form as: Biochem Biophys Res Commun. 2011 Mar 5;407(2):301–306. doi: 10.1016/j.bbrc.2011.03.006

Fig. 4. Interaction force histograms obtained in PBS between CD4 tips and the mixtures of gp120 and anti-CD4 antibody (a) or between anti-gp120-(b) or anti-CD4-(c) functionalized tips and the mixtures of gp120 and CD4.

Fig. 4

In the histogram of Fig. 4a, the arrow and arrowhead indicate two peaks at ~70 pN (arrow) and ~120 pN (arrow head), respectively.