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Simple Gd<sup>3+</sup>-Neu5: N Ac complexation results in NMR chemical shift asymmetries of structurally equivalent complex-type N -glycan branches
Authors
Klochkov V.
Kurbangalieva A.
+7 more
Murase T.
Pavlova N.
Shimoda T.
Takamatsu M.
Tanaka K.
Usachev K.
Yamaguchi Y.
Publication date
1 January 2017
Publisher
Abstract
© The Royal Society of Chemistry 2017. In the present Communication, we propose a quite simple but previously overlooked approach for conveniently analyzing, assigning, and extracting sialic acid-containing N-glycan structures using high-resolution NMR spectroscopy without pre-installing metal chelators.Paramagnetic metals, such as Gd 3+ , appear to bind to the carboxyl groups of N-acetylneuraminic acid when introduced at room temperature, leading to the measurement of nonequivalent proton and carbon NMR spectral signals among otherwise "identical" glycan branched structures
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Last time updated on 07/05/2019