Oxidative modification of TE reduced binding to Fbln-4 and Fbln-5. A 96-well non-tissue culture plates coated with 1 μg/well of unmodified (UnOx-TE; closed circle) or ONOO−-modified (Ox-TE; open circle) were incubated with indicated concentrations of V5-tagged Fbln-4 (A) or Fbln-5 (B) at 37 °C for 3 h. Following washing, bound Fbln-4 or Fbln-5 was detected using an anti-V5 antibody, HRP-conjugated secondary antibody, and the ABTS Peroxidase Substrate System, and measuring the absorbance at 410 nm. Data represent the mean of at least three independent experiments done in duplicate ± S.E. *, p < 0.05; **, p < 0.005 compared with unmodified TE.