abstract |
FIELD: biotechnology. n SUBSTANCE: nano-bodies of the invention are used to prepare bispecific and trispecific polypeptides by binding them to one or two nano-bodies against antigens other than human serum albumin. n EFFECT: invention allows preparation of nano-bodies and polypeptides containing them, having improved affinity for human serum albumin. n 29 cl, 62 dwg, 47 tbl, 65 ex |