| http://www.w3.org/ns/prov#value | - The coding sequences for the heavy and light chains may comprise cDNA or genomic DNA. [0328] Once an antibody has been produced by recombinant expression, it may be purified by any method known in the art for purification of an immunoglobulin molecule, for example, by chromatography (e.g., ion exchange, affinity, particularly by affinity for the specific antigen after Protein A, and sizing column
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