Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Design and structural analysis of a thermostable nine-beta-stranded immunoglobulin scaffold.
Roo, G. de; Francoijs, C.J.J. ; Ippel, J.H. ; Houtzager, E. ; Vijn, I.M.C. ; Burgers, K. ; Willebrands, W. ; Verwoerd, T.C. ; Linden, R. van der; Vervoort, J.J.M. ; Sijmons, P.C. - \ 2010
Biocatalysis and Biotransformation 28 (2010)2. - ISSN 1024-2422 - p. 99 - 107.
protein design - circular-dichroism - antibody fragments - stability
A small and stable protein scaffold, consisting of nine beta-strands and able to functionally present affinity peptide loops, was designed. Computational methods were used to predict sequences with low free energy derived from a naturally occurring single-chain camel antibody. Genes for two redesigned proteins (with respectively 88% and 76% identity with the original sequence) were synthesized and the proteins were expressed, purified, and subsequently characterized using circular dichroism (CD) and NMR experiments. The redesigned proteins appear to be monomeric and demonstrate CD and NMR spectra similar to the wild type, which is consistent with a well-packed immunoglobulin structure. These encouraging results indicate that the computational protein design method can identify amino acid sequences compatible with an immunoglobulin fold.
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