Patent ID: 9556279
Date: 2017-01-31
CPC Classifications: C07K

Claim:
1. A composition comprising antibodies having an Fc region, wherein said Fc region comprises the amino acid sequence of SEQ ID NO: 1 but with one or more amino acid substitutions selected from the group consisting of: substitution of position 162 in SEQ ID NO: 1 with a residue other than Asn; substitution of position 163 in SEQ ID NO: 1 with a Pro or Ala residue; substitution of position 164 in SEQ ID NO: 1 with a residue other than Ser; substitution of position 109 in SEQ ID NO: 1 with a Tyr residue; and substitution of position 167 in SEQ ID NO: 1 with a Gln, Asn, Asp or Phe residue.