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CD9 mutation affects K562 cell adhesion to fibronectin. K562 cells expressing (A) wild-type CD9, (B) mutant CD9 or (C) LXIZ control vector were allowed to adhere to fibronectin for 2 hours, and then photographed. Scale bar: 50 μm. (D) Quantification of K562 cell adhesion results. Error bars indicate means ± s.d. *P<0.05; **P<0.01.
