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2N6H

NMR structure for a 2-stranded parallel beta-sheet

Summary for 2N6H
Entry DOI10.2210/pdb2n6h/pdb
Related2N4N 2N6I
NMR InformationBMRB: 25764
Descriptordesigned 2-stranded parallel beta-sheet (1 entity in total)
Functional Keywordsde novo protein
Total number of polymer chains1
Total formula weight1866.26
Authors
Kung, V.M.,Cornilescu, G.,Gellman, S.H. (deposition date: 2015-08-20, release date: 2015-10-28, Last modification date: 2024-10-09)
Primary citationKung, V.M.,Cornilescu, G.,Gellman, S.H.
Impact of Strand Number on Parallel beta-Sheet Stability.
Angew.Chem.Int.Ed.Engl., 54:14336-14339, 2015
Cited by
PubMed Abstract: We have examined whether parallel β-sheet secondary structure becomes more stable as the number of β-strands increases, via comparisons among peptides designed to adopt two- or three-stranded parallel β-sheet conformations in aqueous solution. Our three-strand design is the first experimental model of a triple-stranded parallel β-sheet. Analysis of the designed peptides by nuclear magnetic resonance (NMR) and circular dichroism (CD) spectroscopy supports the hypothesis that increasing the number of β-strands, from two to three, increases the stability of the parallel β-sheet. We present the first experimental evidence for cooperativity in the folding of a triple-stranded parallel β-sheet, and we show how minimal model systems may enable experimental documentation of characteristic properties, such as CD spectra, of parallel β-sheets.
PubMed: 26457984
DOI: 10.1002/anie.201506448
PDB entries with the same primary citation
Experimental method
SOLUTION NMR
Structure validation

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