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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 
 

High-resolution NMR studies of fibrinogen-like peptides in solution: resonance assignments and conformational analysis of residues 1-23 of the A alpha chain of human fibrinogen.

The proton resonances of the following synthetic linear human fibrinogen-like peptides were completely assigned with two-dimensional NMR techniques in solution: Ala(1)-Asp-Ser-Gly-Glu-Gly-Asp(7)-Phe-Leu-Ala-Glu-Gly(12)-Gly(13)-Gly(14)- Val(15)-Arg(16)-Gly-Pro-Arg-Val-Val-Glu-Arg (F10), Ala-Asp-Ser-Gly-Glu-Gly-Asp-Phe-Leu-Ala-Glu-Gly-Gly(13)-Gly(14)-Val-Arg (F11), and Gly-Pro-Arg-Val-Val-Glu-Arg (F12). No predominant structure was found in the chain segment from Ala(1) to Gly(6) for F10 in both H2O and dimethyl sulfoxide. The previous suggestion that there is a hairpin loop involving residues Gly(12) to Val(15) in the A alpha chain of human fibrinogen is supported by the slow backbone NH exchange rates of Gly(14) and Val(15), by an unusually small NH chemical shift of Val(15), and by strong sequential NOE's involving this region in F10. This local chain fold within residues Asp(7) to Val(20) may place the distant Phe residue near the Arg(16)-Gly(17) peptide bond which is cleaved by thrombin.[1]

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