Transgenic bovines capable of human antibody production

Multicellular living organisms and unmodified parts thereof and – Nonhuman animal – Transgenic nonhuman animal

Reexamination Certificate

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C800S005000, C800S006000, C800S025000

Reexamination Certificate

active

07414170

ABSTRACT:
The invention features novel methods for the production of large quantities of xenogenous antibodies, such as human antibodies. Preferably, this result is effected by inactivation of IgM heavy chain expression and, optionally, by inactivation of Ig light chain expression, and by the further introduction of an artificial chromosome which results in the expression of xenogenous antibodies (e.g., non-bovine antibodies), preferably human antibodies.

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