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  • Title: Molecular weights and subunit structure of LamB proteins.
    Author: Nakae T, Ishii JN.
    Journal: Ann Microbiol (Paris); 1982 Jan; 133A(1):21-5. PubMed ID: 6462083.
    Abstract:
    Phage lambda-receptor proteins of Escherichia coli, LamB proteins, form oligomeric aggregates to build transmembrane diffusion pores selective for maltose and maltodextrins. The molecular weights (MW) of functional oligomers as well as dissociated monomers were determined by sedimentation equilibrium analysis in homogeneous non-ionic surfactant and deuterium oxide and in 6 M guanidine-HCl, respectively. The MW of oligomers and monomers appeared as 135 600 and 45 900, respectively. Thus, functional Lamb proteins consisted of three identical subunits.
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