Efficient segmental isotope labeling of multi-domain proteins using Sortase A
Efficient segmental isotope labeling of multi-domain proteins using Sortase A
Abstract
NMR studies of multi-domain protein complexes provide unique insight into their molecular interactions and dynamics in solution. For large proteins domain-selective isotope labeling is desired to reduce signal overlap, but available methods require extensive optimization and often give poor ligation yields. We present an optimized strategy for segmental labeling of multi-domain proteins using the S. aureus transpeptidase Sortase A. Critical improvements compared to...
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08-29-2015 09:18 PM
[NMR paper] Unambiguous Assignment of Short- and Long-Range Structural Restraints by Solid-State NMR Spectroscopy with Segmental Isotope Labeling.
Unambiguous Assignment of Short- and Long-Range Structural Restraints by Solid-State NMR Spectroscopy with Segmental Isotope Labeling.
Related Articles Unambiguous Assignment of Short- and Long-Range Structural Restraints by Solid-State NMR Spectroscopy with Segmental Isotope Labeling.
Chembiochem. 2014 Nov 12;
Authors: Schubeis T, Lührs T, Ritter C
Abstract
We present an efficient method for the reduction of spectral complexity in the solid-state NMR spectra of insoluble protein assemblies, without loss of signal intensity....
[NMR paper] Isotope labeling strategies for analysis of an ion channel cytoplasmic domain by NMR spectroscopy.
Isotope labeling strategies for analysis of an ion channel cytoplasmic domain by NMR spectroscopy.
Related Articles Isotope labeling strategies for analysis of an ion channel cytoplasmic domain by NMR spectroscopy.
Methods Mol Biol. 2013;998:289-300
Authors: Abarca-Heidemann K, Duchardt-Ferner E, Woehnert J, Rothberg BS
Abstract
As large, multimeric, integral membrane proteins, ion channels pose technical challenges to analysis by NMR spectroscopy. Here we present a strategy to overcome some of these technical hurdles, using a...
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03-27-2013 03:33 PM
[NMR paper] Amino Acid-Selective Segmental Isotope Labeling of Multidomain Proteins for Structural Biology.
Amino Acid-Selective Segmental Isotope Labeling of Multidomain Proteins for Structural Biology.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--media.wiley.com-assets-2250-98-WileyOnlineLibrary-Button_120x27px_FullText.gif Related Articles Amino Acid-Selective Segmental Isotope Labeling of Multidomain Proteins for Structural Biology.
Chembiochem. 2013 Jan 30;
Authors: Michel E, Skrisovska L, Wüthrich K, Allain FH
Abstract
Current solution NMR techniques enable structural investigations of proteins in molecular particles with sizes...
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02-03-2013 10:19 AM
Segmental isotope labeling of proteins for NMR structural study using a protein S tag for higher expression and solubility
Segmental isotope labeling of proteins for NMR structural study using a protein S tag for higher expression and solubility
Abstract A common obstacle to NMR studies of proteins is sample preparation. In many cases, proteins targeted for NMR studies are poorly expressed and/or expressed in insoluble forms. Here, we describe a novel approach to overcome these problems. In the protein S tag-intein (PSTI) technology, two tandem 92-residue N-terminal domains of protein S (PrS2) from Myxococcus xanthus is fused at the N-terminal end of a protein to enhance its expression and solubility. Using...
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03-08-2012 08:46 AM
A segmental labeling strategy for unambiguous determination of domainâ??domain interactions of large multi-domain proteins
A segmental labeling strategy for unambiguous determination of domainâ??domain interactions of large multi-domain proteins
Abstract NMR structural determination of large multi-domain proteins is a challenging task due to significant spectral overlap with a particular difficulty in unambiguous identification of domainâ??domain interactions. Segmental labeling is a NMR strategy that allows for isotopically labeling one domain and leaves the other domain unlabeled. This significantly simplifies spectral overlaps and allows for quick identification of domainâ??domain interaction. Here, a...
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07-08-2011 07:01 PM
Recent advances in segmental isotope labeling of proteins: NMR applications to large proteins and glycoproteins
Recent advances in segmental isotope labeling of proteins: NMR applications to large proteins and glycoproteins
Abstract In the last 15 years substantial advances have been made to place isotope labels in native and glycosylated proteins for NMR studies and structure determination. Key developments include segmental isotope labeling using Native Chemical Ligation, Expressed Protein Ligation and Protein Trans-Splicing. These advances are pushing the size limit of NMR spectroscopy further making larger proteins accessible for this technique. It is just emerging that segmental isotope...