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A phage display library made from Staphylococcus aureus DNA was sorted against a central venous catheter (CVC) that had been removed from a patient 2 days after insertion. After the first panning, approximately 50% of the clones encoded proteins known to interact with mammalian proteins. After the second and third pannings, fibrinogen-binding and beta2-glycoprotein I (beta2-GPI)-binding phage particles were clearly dominating. Proteins adsorbed to different CVCs were investigated using specific antibodies. Among the proteins probed for, fibrinogen was most abundant, but, interestingly, beta2-GPI was also detected on all tested CVCs.
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Bjerketorp et al. (2004) studied this question.
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