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. 2013 Oct 22;3:3014. doi: 10.1038/srep03014

Figure 6. Micromechanical characteristics of bonds between virus expressing the env of specified isolated strains with CD4, CCR5, and CXCR4 cell surface proteins.

Figure 6

(A) x* is the distance along the free energy surface from the well minimum to the energy at bond rupture, or bond length. (B) κm is the molecular spring constant of the measured bond.