Supplementary Figure 2.

Binding affinity of matrix metalloproteinase (MMP) peptides to purified RT1.B^L. The binding affinity of the competitor peptides (MMP peptides) was tested in a competitive MHC class II peptide binding assay in a dose range of 0–256 μM. ^* IC₅₀, concentration of competitor peptide (μM) resulting in 50% inhibition of the binding of marker peptide to RT1.B^L, as evaluated by Molecular Analyst Software (see Supplementary Materials and methods).