doi: 10.1111/j.1432-1033.1986.tb10121.x.
A 1H-NMR study of human interleukin-1 beta. Sequence-specific assignment of aromatic residues using site-directed mutant proteins
- PMID: 3023086
- DOI: 10.1111/j.1432-1033.1986.tb10121.x
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A 1H-NMR study of human interleukin-1 beta. Sequence-specific assignment of aromatic residues using site-directed mutant proteins
Eur J Biochem.
.
Free article
Abstract
Complete identification of spin systems in the aromatic region of recombinant human interleukin-1 beta has been achieved using two-dimensional homonuclear Hartmann-Hahn spectroscopy. In addition, sequence-specific assignments for the four tyrosine residues have been carried out with the help of a series of mutant proteins, obtained by site-directed mutagenesis of the cloned gene. It is shown that, for the mutant proteins investigated, either none or only local structural changes occur. The use of NMR spectroscopy to determine the structural identity of site-directed mutant proteins with respect to the wild-type protein is discussed.
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