Journal
JOURNAL OF BIOMOLECULAR NMR
Volume 48, Issue 3, Pages 123-128Publisher
SPRINGER
DOI: 10.1007/s10858-010-9448-2
Keywords
Automated resonance assignments; Magic angle spinning; Solid-state; Protein; GB1
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Funding
- DOE [DE-EM0000197]
- NIH [R01-GM075937]
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Magic-angle spinning solid-state NMR (MAS SSNMR) represents a fast developing experimental technique with great potential to provide structural and dynamics information for proteins not amenable to other methods. However, few automated analysis tools are currently available for MAS SSNMR. We present a methodology for automating protein resonance assignments of MAS SSNMR spectral data and its application to experimental peak lists of the beta 1 immunoglobulin binding domain of protein G (GB1) derived from a uniformly (13)C- and (15)N-labeled sample. This application to the 56 amino acid GB1 produced an overall 84.1% assignment of the N, CO, CA, and CB resonances with no errors using peak lists from NCACX 3D, CANcoCA 3D, and CANCOCX 4D experiments. This proof of concept demonstrates the tractability of this problem.
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