Non-human animals having a humanized signal-regulatory protein gene
AssigneeRegeneron Pharmaceuticals, Inc.
InventorsAndrew J. Murphy, O. Gavin Thurston, Bindu Varghese, Cagan Gurer
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Abstract
Genetically modified non-human animals and methods and compositions for making and using the same are provided, wherein the genetic modification comprises a humanization of an endogenous signal-regulatory protein gene, in particular a humanization of a SIRPα gene. Genetically modified mice are described, including mice that express a human or humanized SIRPα protein from an endogenous SIRPα locus.
Claims16
A mouse whose genome comprises a replacement of exons 2, 3and 4 of a mouse SIRPα gene at an endogenous mouse SIRPα locus with exons 2, 3 and 4 of a human SIRPα gene to form a humanized SIRPα gene, wherein said humanized SIRPα gene is operably linked to a mouse SIRPα promoter at said endogenous mouse SIRPα locus, and expresses in said mouse a humanized SIRPα protein comprising an extracellular portion of the human SIRPα protein encoded by said human SIRPα gene and an intracellular portion of the mouse SIRPα protein encoded by said mouse SIRPα gene.
An isolated mouse cell or tissue whose genome comprises a replacement of exons 2, 3 and 4 of a mouse SIRPα gene at an endogenous mouse SIRPα locus with exons 2, 3 and 4 of a human SIRPα gene to form a humanized SIRPα gene, wherein said humanized SIRPα gene is operably linked to a mouse SIRPα promoter at said endogenous mouse SIRPα locus, and expresses in said mouse cell or tissue a humanized SIRPα protein comprising an extracellular portion of the human SIRPα protein encoded by said human SIRPα gene and an intracellular portion of the mouse SIRPα protein encoded by said mouse SIRPα gene.
Dependencies are inferred from the claim text.