Figure 3
From: Peak picking NMR spectral data using non-negative matrix factorization
Non-negative matrix factorization of overlapped peaks of a small region (1H: 8.095–8.298ppm,15N: 118.813–123.806ppm,13C: 175.910–176.791ppm) of the 3D HNCO spectrum of the RcsD-ABL-HPt (DAH) protein. A)1H-13C projection. B)1H-15N projection. C)13C-15N projection. The upper row shows the peaks in 2D projections. The lower row shows the peaks factorized in 1D shapes from the corresponding projections. The peaks positions and intensities were obtained using a three-point parabolic interpolation.