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  • Title: Sequence-specific resonance assignments in the 1H nuclear-magnetic-resonance spectrum of the lac repressor DNA-binding domain 1-51 from Escherichia coli by two-dimensional spectroscopy.
    Author: Zuiderweg ER, Kaptein R, Wüthrich K.
    Journal: Eur J Biochem; 1983 Dec 01; 137(1-2):279-92. PubMed ID: 6360686.
    Abstract:
    The assignment of the 1H nuclear magnetic resonance (NMR) spectrum of the DNA-binding domain 1-51 of lac repressor from Escherichia coli is described and documented. The assignments are based entirely on the amino acid sequence and on two-dimensional NMR experiments at 360 MHz and 500 MHz. Individual assignments were obtained at 18 degrees C for the backbone protons of 44 out of the total of 51 amino acids residues, the exceptions being Met-1, Lys-2, Tyr-7, Arg-35, Glu-36, Lys-37 and Ile-48. Complete assignments of the non-labile hydrogen atoms of the side chain were obtained for 33 residues, and for Asn-46 and Asn-50 the delta amide protons were also identified. The chemical shifts for the assigned resonances at 18 degrees C are listed for an aqueous solution at pH 4.9 and at pH 6.8.
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