Fig. 3: Comparison of predictions with ideal ion mobility (IM) data to those of AlphaFold (AF) and RF (RosettaFold). | Nature Communications

Fig. 3: Comparison of predictions with ideal ion mobility (IM) data to those of AlphaFold (AF) and RF (RosettaFold).

From: Protein shape sampled by ion mobility mass spectrometry consistently improves protein structure prediction

Fig. 3

Predictions, for the ideal dataset, using the IM score function were compared to that of Rosetta (RS), AFwith_templates, and RFwith_templates. a Violin distributions (n = 60 biologically independent samples over 4 independent modelling approaches), of (i) root mean square deviation (RMSD) and (ii) template modelling score (TM-Score) of the predicted structure using the RS, IM, AFwith_templates and RFwith_templates score functions. For protein structure predictions with methods shown in a the mean and the standard error of mean in (i) are 4.46 ± 0.74 Å, 3.72 ± 0.65 Å, 3.43 ± 0.77 Å, and 4.37 ± 0.80 Å respectively. Similarly the mean and the standard error of mean in (ii) are 0.84 ± 0.03, 0.86 ± 0.02, 0.92 ± 0.02, and 0.88 ± 0.02 respectively. For the violin distributions in a (i) and a (ii) the white dots represent the median. The black bar in the center of the distribution is the interquartile range (IQR). The black stretched line extends from the “first quartile −1.5 IQR” to the “third quartile + 1.5 IQR”. Values beyond this range are considered outliers. b Comparison of predicted structures with AFwith_templates (cyan), RFwith_templates (red) and IM (purple) to their native structures (grey) for the ideal dataset. c High normalized absolute difference in collision cross section of the predicted structure and the native structure (ΔCCS divided by sequence length) for structures predicted with AFwith_templates (cyan) and RFwith_templates (red) generally corresponded to structures with low TM-Score as seen for the ideal dataset. Source data are provided as a Source Data file.

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