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Cerf, C. et al.

Homo- and heteronuclear two-dimensional NMR studies of the globular domain of histone H1: sequential assignment and secondary structure.

A recombinant 75 amino acid polypeptide corresponding to the globular domain of the chicken histone H1 ( GH1) has been studied by 1H homonuclear and 1H-15N heteronuclear 2D NMR spectroscopy. Sequential assignment of the backbone and beta-proton resonances has enabled us to determine the secondary structure of GH1. It was found to consist of three helical regions (T7-S17, L25-Y37, E40-K56) and probably a beta-hairpin (L59-L73). This structure is similar to the structure of the globular domain of histone H5 (GH5) obtained both by NMR spectroscopy [Zarbock et al. (1986) Proc. Natl. Acad. Sci. U.S.A. 83, 7628-7632; Clore et al. (1987) EMBO J. 6, 1833-1842] and by X-ray crystallography [Ramakrishnan et al. (1993) Nature 362, 219-223]. The beta-hairpin as suggested for GH1 is also present in the X-ray structure of GH5 but has not been reported for the NMR structure of GH5.[1]

References

Homo- and heteronuclear two-dimensional NMR studies of the globular domain of histone H1: sequential assignment and secondary structure. Cerf, C., Lippens, G., Muyldermans, S., Segers, A., Ramakrishnan, V., Wodak, S.J., Hallenga, K., Wyns, L. Biochemistry (1993) [Pubmed]

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