definiens: means the variable region of an An tibody ( i.e., the amino acid sequence of such Antib ody that confers specificity for a target, including th e paratope ), and any portion, fragment, variant, mo dification or derivative thereof, so long as such portion, fragme nt, variant, modification or derivative continues t o confer specificity for the same target . For clarity, a includes the nucleic acid sequence encoding t he amino acid sequence of such Binder . A is an Anti body . The term may be, but is not limited to, any of the following : 1.9.1, which means a Binder tha t 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 1.9.2, which means a Binder that is in the public domain, as agreed by the Parties pursuant to Section 2.2.3(e ) ; or 1.9.3, which means a Binder 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 )