Patent ID: RE43898

Claim:
An antibody which is capable of binding to human CD4 antigen, in which the CDRs of the light chain of the antibody have the amino acid sequences: CDR1: LASEDIYSDLA (SEQ ID NO:13) CDR2: NTDTLQN (SEQ ID NO:14) CDR3: QQYNNYPWT (SEQ ID NO:15) in which the CDRs of the heavy chain of the antibody have the amino acid sequences: CDR1: NYGMA (SEQ ID NO:16) CDR2: TISHDGSDTYFRDSVKG (SEQ ID NO:17) CDR3: QGTIAGIRH (SEQ ID NO:18), and in which the framework of the variable domain of each chain and any constant domain present in said chain are derived from a mammalian non-rat species.