| http://www.w3.org/ns/prov#value | - Various affinity media suitable for bioaffinity assays and/or purification of tagged proteins, monoclonal and polyclonal antibodies, glycoproteins, enzymes, nucleic acids, cells, and other proteins are commercially available, e.g., from Amersham Biosciences (Piscataway, N.J.) and Millipore Corp. (Billerica, Mass.).
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