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Table 4 Backbone refinement of the modeled PA proteases from Plasmodium falciparum , Pyrococcus furiosus, Neurospora crassa and Arabidopsis thaliana

From: Modeling and structural analysis of PA clan serine proteases

Structural model φ-ψ distribution in the regions of Ramachandran’s plot
  Number of residues (percentage)
  Most favoured Additional allowed Generously allowed Disallowed
P. falciparum     
Before backbone refinement 89(76.1%) 21(17.9%) 4(3.4%) 3(2.6%)
After backbone refinement 84(71.9%) 33(28.2%) 0 (0.0%) 0 (0.0%)
P. furiosus     
Before backbone refinement 62(56.9%) 40(36.7%) 1(0.9%) 6(5.5%)
After backbone refinement 84(71.8%) 33(28.2%) 0 (0.0%) 0 (0.0%)
N. crassa     
Before backbone refinement 65(52.0%) 50(40.4%) 4(3.4%) 3(2.6%)
After backbone refinement 69(55.5%) 56(44.8%) 0 (0.0%) 0 (0.0%)
A. thaliana     
Before backbone refinement 82(60.7%) 45(32.6%) 7(4.4%) 3(2.2%)
After backbone refinement 86(63.7%) 49(36.3%) 0 (0.0%) 0 (0.0%)