Final CDRs for JAA-F11 heavy and light chain variable regions. Final CDRs as determined by Kabat (sequence) in red, Chothia (structure) in blue boxes, amino acids 5 Å from binding site (pink) or 6 Å from binding site (yellow). Black underlined = CDRs selected for humanization. In addition cysteine at position L23 and L88 (green) were maintained. (A) Heavy chain. (B) Light chain. Numbering is according to Kabat. Letters a, b, c, refers to insertions.