Figure 2. Z-score plots for (A) CENP-H, (B) CENP-K and (C)
CENP-I. The plots contain the z -scores of all protein chains in
the current PDB that has been experimentally determined. In this plot,
structural groups from different sources such as, X-ray and NMR ,are
differentiated by different colors.
The PROCHECK suite was used for the calculation of the stereochemical
quality of the models through the analysis of the overall structural and
individual residue geometry. The Ramachandran plot for each modeled
protein showed that over 92% of the residues were located in the most
favourable region, with an average of 5.4% of the residues located in
the allowed region while less than 0.4% were in the disallowed region
(Supplementary Figure S3). Based on the analysis of 118 structures with
a minimum of 2.0 Å and a maximum R-factor value of 20%, it is expected
that a good quality model will have more than 90% of its resides in the
most favored region.