Patent 11617357 was granted and assigned to Regeneron Pharmaceuticals on April, 2023 by the United States Patent and Trademark Office.
Non-human animals, tissues, cells, and genetic material are provided that comprise a modification of an endogenous non-human heavy chain immunoglobulin sequence and that comprise an ADAM6 activity functional in a mouse, wherein the non-human animals express a human immunoglobulin heavy chain variable domain and a cognate human immunoglobulin λ light chain variable domain.