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  4. Ultrafast MAS Solid-State NMR Permits Extensive C-13 and H-1 Detection in Paramagnetic Metalloproteins
 
research article

Ultrafast MAS Solid-State NMR Permits Extensive C-13 and H-1 Detection in Paramagnetic Metalloproteins

Bertini, Ivano
•
Emsley, Lyndon  
•
Lelli, Moreno
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2010
Journal of the American Chemical Society

We show here that by combining tailored approaches based on ultrafast (60 kHz) MAS on the Co-II-replaced catalytic domain of matrix metalloproteinase 12 (CoMMP-12) we can observe and assign, in a highly paramagnetic protein in the solid state, C-13 and even H-1 resonances from the residues coordinating the metal center. In addition, by exploiting the enhanced relaxation caused by the paramagnetic center, and the low power irradiation enabled by the fast MAS, this can be achieved in remarkably short times and at very high field (21.2 T), with only less than 1 mg of sample. Furthermore, using the known crystal structure of the compound, we are able to distinguish and measure pseudocontact (PCS) contributions to the shifts up to the coordinating ligands and to unveil structural information.

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Type
research article
DOI
10.1021/ja100398q
Web of Science ID

WOS:000276991700012

Author(s)
Bertini, Ivano
Emsley, Lyndon  
Lelli, Moreno
Luchinat, Claudio
Mao, Jiafei
Pintacuda, Guido
Date Issued

2010

Publisher

AMER CHEMICAL SOC

Published in
Journal of the American Chemical Society
Volume

132

Issue

16

Start page

5558

End page

5559

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LRM  
Available on Infoscience
January 8, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/110023
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