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Identification of OMP receptors on the surface of E. coli K-12 recognized by phage Bp7. The OMPs on the E. coli K-12 surface targeted by phage Bp7 were identified by affinity chromatography. Recombined protein gp38 and E. coli K-12 were used as a control. The protein bands which could bind with gp38 protein specifically are shown by black arrows. The common bands in all lanes were nonspecifically bound to the nickel column. MW, molecular weight (marked in lane M).
