1B) to various HLA-A2-peptide complexes demonstrating that clone 315 is highly specific for the HLA-A2-LLDFVRFMGV (SEQ ID NO: 4) complex. FIG. 2 shows the binding of bacterial supernatant from individual WT-1 scFv clones 42, 43 and 45 (FIG. 2A) and purified WT-1 clone 45 scFv (...