PSMB7 and neoplasm: Expression of the chimeric scFv(anti-HER-2/neu)/ζ receptor selective for HER-2/neu+ tumour cells was performed by constructing one continuous molecule comprising gene segments of the variable region of the murine anti-HER-2/neu MAb produced by the HB8696 hybridoma and the signal-transducing human TCR-ζ chain transmembrane and intracellular region.