The cell supernatant or {HEAD ~ the solution} obtained after centrifugation of the mixture obtained on breaking the cells, which contains proteins, nucleic acids and other cell constituents, is enriched in proteins, including the polypeptides of {TAIL ~ the invention}, in a manner which is known per se 
The cell supernatant or { HEAD ~ the solution } obtained after centrifugation of the mixture obtained on breaking the cells , which contains proteins , nucleic acids and other cell constituents , is enriched in proteins , including the polypeptides of { TAIL ~ the invention } , in a manner which is known per se
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