1-77-Interleukin 15 receptor α chain (human) fusion protein with peptide linker (synthetic 20-amino acid) fusion protein with interleukin 15 [65-serine] (human) fusion protein with peptide linker (GGGGS)6 fusion protein with immunoglobulin G1 [234-alanine,235-alanine,349-cysteine,366-serine,368-alanine,407-valine], anti-(human programmed cell death protein 1) (human monoclonal SAR445877 γ1-chain), (467→226′),(470→229′),(590→354′)-tris(disulfide) with immunoglobulin G1 [234-alanine,235-alanine,354-cysteine,366-tryptophan] anti-(human programmed cell death protein 1) (human monoclonal SAR445877 γ1-chain), (461→214′′),(220′→214′′′)-bis(disulfide) with human monoclonal SAR445877 κ-chain
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human interleukin-15 receptor subunit alpha (IL-15RA, IL-15Rα, CD215; Uniprot Q13261) sushi domain containing fragment (1-77), fused via peptide linker <sup>78</sup>SGGSGGGGSGGGSGGGGSLQ<sup>97</sup> to human interleukin-15 (IL-15; Uniprot P40933) (98-211 in the current sequence) variant (N<sup>65</sup>>S<sup>162<sup>), fused via a (G<sup>4</sup>S) <sup>6</sup> peptide linker (212-241) to the N-terminus of one heavy chain of human immunoglobulin IgG1-kappa anti-[human programmed cell death protein 1 (PD-1, PDCD1, programmed cell death 1 receptor, CD279)] (242-688) [VH (Homo sapiens IGHV3-23*01 -(IGHD) -IGHJ6*01, CDR-Kabat [5.17.8] (272-276.291-307.340-347)) (242-358) -Homo sapiens IGHG1*01 (CH1 (359-456), hinge (457-471), CH2 L<sup>475</sup>>A, L<sup>476</sup>>A (472-581), CH3 Y<sup>590</sup>>C, T<sup>607</sup>>S, L<sup>609</sup>>A, Y<sup>648</sup>>V (582-686), CHS (687-688)) (359-688)], (461-214')-disulfide with V-kappa light chain (1'-214') [V-KAPPA (Homo sapiens IGKV1D-12*01 -IGKJ2*02, CDRKabat [11.7.9] (24'-34'.50'-56'.89'-97')) (1'-107') -Homo sapiens IGKC*01 (108'-214')], (467-226'': 470-229'')-bisdisulfide with Hgamma1 heavy chain (1''-447'') [VH (Homo sapiens IGHV3-23*01 -(IGHD) -IGHJ6*01, CDR-Kabat [5.17.8] (31''-35''.50''-66''.99''-106'')) (1''-117'') -Homo sapiens IGHG1*01 (CH1 (118''-215''), hinge (216''-230''), CH2 L<sup>234''</sup>>A, L<sup>235''</sup>>A (231''-340''), CH3 S<sup>354''</sup>>C, T<sup>366''</sup>>W (341''-445''), CHS (446''-447'')) (118''-447'')], (220''-214''')-disulfide with Vkappa light chain (1'''-214''') [V-KAPPA (Homo sapiens IGKV1D-12*01 -IGKJ2*02, CDR-Kabat [11.7.9] (24'''-34'''.50'''-56'''.89'''-97''')) (1'''-107''') -Homo sapiens IGKC*01 (108'''-214''')], produced in Chinese hamster ovary (CHO) cells, cell line CHO-K1, glycoform alfa
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