| 摘要 |
The present invention provides a "ASCP-body" that comprises a bottomside epitope binding domain ("BEBD") comprising four Bottomside Binding Regions (BBR1, BBR2, BBR3, and BBR4). This epitope binding domain is in addition to the topside epitope binding domain (TEBD) formed by the three Complementarity Determining Regions (CDR1, CDR2, and CDR3). The invention encompasses mono-specific, bi-specific and multi-specific, and mono-valent, bi-valent and multi-valent ASCP-bodies. The invention also encompasses fusion proteins in which one or more ASCP-bodies with a BEBD is conjugated to one or more ASCP-bodies with a BEBD and, optionally, a TEBD; to one or more ASCP- bodies with a TEBD and, optionally, a BEBD; or to one or more non-ASCP-body entity(ies). The various ASCP-bodies in the bi-specific and multi-specific ASCP-bodies and fusion proteins may all bind to the same epitopes or antigens or may bind to different epitopes or antigens. |
