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Efficient segmental isotope labeling of multi-domain proteins using Sortase A.
J. Biomol. NMR 63, 1-8 (2015)
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 existing protocols are (1) the efficient removal of cleaved peptide fragments by centrifugal filtration and (2) a strategic design of cleavable and non-cleavable affinity tags for purification. Our approach enables routine production of milligram amounts of purified segmentally labeled protein for NMR and other biophysical studies.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
3.141
0.894
54
62
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Multi-domain Proteins ; Protein Expression ; Protein Ligation ; Segmental Isotope Labeling ; Sortase A
Sprache
englisch
Veröffentlichungsjahr
2015
HGF-Berichtsjahr
2015
ISSN (print) / ISBN
0925-2738
e-ISSN
1573-5001
Zeitschrift
Journal of Biomolecular NMR
Quellenangaben
Band: 63,
Heft: 1,
Seiten: 1-8
Verlag
Springer
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Structural Biology (STB)
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503000-001
PubMed ID
26319988
WOS ID
WOS:000361612700001
Scopus ID
84942366316
Scopus ID
84941343618
Erfassungsdatum
2015-09-02