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XYZ4D

XYZ4D (Xu Yingqi, Yang Daiwen & Zheng Yu’s novel strategy for solution structure determination of large proteins without deuteration using 4D NOESY and other 3D NMR spectra.) is a NMRspy extension written in JAVA to assist the assignment of backbone resonances of large proteins without the use of deuterium and specific labeling.

It is based on a strategy recently developed in our lab, which extends the size limit for structure determination by NMR spectroscopy to 42 kDa for monomeric proteins and to 65 kDa for differentially labeled multimeric proteins.