a trend toward significancep = 0.06
These results are consistent with biomembrane force probe (BFP) 2D affinity measurements of the 3.L2 TCR that showed no contribution of CD4 to the agonist Hb:I-E k pMHCII, but a significant contribution to binding of an antagonist (I72) pMHCII and a trend toward significance with a weak agonist ligand (T72; p = 0.06) ( Hong et al., 2015 ).