definiens: means the constant region of an A ntibody ( i.e., the amino acid sequence of such Antibody that does not confer specificity for a tar get ) that could promote the assembly of such Antibo dy, and any portion, fragment, variant, modification or der ivative thereof, so long as such portion, fragment, variant, modification or derivative does not confer specific ity for the same target . For clarity, a in cludes the nucleic acid sequence encoding the amino acid seque nce of such Format . The term may be, but i s not limited to, any of the following : 1.40.1, which means a Format th at is ( a ) Controlled by CELGENE or any of its Affiliates as of the Original Effective Date or thereafter during the Term and ( b ) provided by CEL GENE to the Collaboration pursuant to Section 2.2.3(c)(i ) ; or 1.40.2, which means a Format that is in the public domain, as agreed by the Parties pursuant to Section 2.2.3(e ) ; or 1.40.3, which means a Format that is ( a ) Controlled by SUTRO or any of its Affiliates as of the Original Effective Date or the reafter during the Term and ( b ) provided by SUTRO t o the Collaboration pursuant to Section 2.2.3(a)(i )