Patent ID: 11859007
Assignee: CORVUS PHARMACEUTICALS, INC.
Field: Measurement (Instruments)
Classification: CPC C  A  G | IPC A  C  G

Claim 11:
12. A humanized 1E9 antibody bound to a CD73 antigen at a pH of less than about 7.5, wherein said humanized light chain variable region comprises an isoleucine at a position corresponding to Kabat position 2, a leucine at a position corresponding to Kabat position 4, a serine or alanine at a position corresponding to Kabat position 9, a serine or threonine at a position corresponding to Kabat position 10, a leucine at a position corresponding to Kabat position 11, a serine at a position corresponding to Kabat position 14, a glycine at a position corresponding to Kabat position 16, an arginine at a position corresponding to Kabat position 18, a threonine at a position corresponding to Kabat position 20 and a glutamine at a position corresponding to Kabat position 42; and
wherein said humanized heavy chain variable region comprises a glutamine at a position corresponding to Kabat position 1, a serine at a position corresponding to Kabat position 17, a methionine or valine at a position corresponding to Kabat position 20, a alanine at a position corresponding to Kabat position 24, a valine at a position corresponding to Kabat position 37, an arginine or alanine at a position corresponding to Kabat position 40, a proline at a position corresponding to Kabat position 41, a glutamine at a position corresponding to Kabat position 43, a glycine at a position corresponding to Kabat position 44, a threonine at a position corresponding to Kabat position 70, a threonine at a position corresponding to Kabat position 75, a methionine at a position corresponding to Kabat position 80, a threonine or arginine at a position corresponding to Kabat position 83, a serine at a position corresponding to Kabat position 84, a glutamic acid at a position corresponding to Kabat position 85, and a valine at a position corresponding to Kabat position 89.