| http://www.w3.org/ns/prov#value | - As used herein, an ???isolated??? or ???purified??? protein, polynucleotide or molecule means removed from the environment in which they naturally occur, or substantially free of cellular material, such as other contaminating proteins from the cell or tissue source from which the protein polynucleotide or molecule is derived, or substantially free from chemical precursors or other chemicals when c
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