This server FDR4 is meant for the prediction of binding affinity of
peptide binders in an antigenic sequence for a MHC class II allele
HLA-DRB1*0401. Methods developed in the past can only predict whether a
peptide is a binder or non-binder of this allele. Moreover, determining
the binding core is also a problem in case of developing prediction
methods for MHC class-II alleles. This server tries to overcome this
problem and can predict both the binding core as well as the binding
affinity of a peptide in an antigenic protein sequence.