• prediction

    Naming for evaluation results follows the format:

    • Txx_Pyy.Mzz, where

      Txx is the target ID,

      Pyy is the participant ID, and

      Mzz is the MODEL ID of the submission

    In addition, three further structures are evaluated:

    • capri_xx_xray

      the target, with xx the target ID

    • unbound

      the unbound ligand and receptor structures, fitting their invariant parts onto the target

    • interface

      the interface ligand and receptor structures, fitting their interface parts onto the target

    The summary displays a logfile for the evaluation. A lot of it is irrelevant information and you could even safely ignore this file. However, some useful information is:

    • Matching chains

      using a sequence alignment, the prediction chains are fitted onto the target chains, this definition is then used throughout the rest of the evaluation

    • Conservation of sequence

      for each target chain, first ligand then receptor, 4 sequence strings are given:

      • I(nterface)

        lists the residues that are part of the interface

      • T(arget)

        full sequence for the target

      • C(onservation)

        uppercase residues are conserved throughout all predictions, lowercase residues have backbone presence but are not conserved

      • S(tructure)

        receptor residues that are invariant to conformational changes between unbound and bound structures

      The C and S sequence strings are used to filter out those residues that are not present or conserved throughout the predictions and the ones that show a large conformational change between target unbound and bound receptor molecule(s), see settings

  • f(nat) and f(non-nat)

    f(nat) is the fraction of ligand-receptor contacts that is also found in the native (target) structure

    f(non-nat) is the fraction of ligand-receptor contacts that is found, but that is not present in the native (target) structure

    A list of ligand-receptor contacts and whether they are native (1) or non-native (0) is supplied

  • f(IR) and f(OP)

    f(IR) is the fraction of interface residues for the prediction that match the interface of the target, based on solvent-accessibility

    f(OP) is the overprediction, or fraction of interface residues for the prediction that do not match the interface of the target, based on solvent-accessibility

    A list of interface residues and whether they are native (1) or non-native (0) is supplied. Note that this list is based on the distance-definition of the interface, and one can not calculate f(IR) and f(OP) from it

    Both f(IR) and f(OP) are split in a receptor and a ligand part

  • IA

    IA is the interface solvent accessible surface area for the complex, where the interface area is defined as

    • IA = SAS(ligand) + SAS(receptor) - SAS(complex)
  • d(L)

    d(L) is the distance between the backbone-only geometrical centers or centers-of-mass of target and prediction ligand molecule(s), after a LSQ RMS fit of either the receptor interface, or the receptor conformational change invariant residues backbone (see settings)

    A PDB file with the prediction structure on top of the target structure (MODEL 0) is supplied under L_rmsd, with the geometrical or mass-weighted centers in MODEL 9999, chain Z, residues XYZ 9998 (target) and XYZ 9999 (prediction)

  • L_rmsd

    L_rmsd is the RMSD between target and prediction ligand molecule(s) after the same LSQ RMS fit as was done in the calculation of d(L)

    The fitted structures are supplied in a PDB file

    Please note that links to PDB files will only work once the coordinates of the target have been released

  • I_rmsdbb

    I_rmsdbb is the interface RMSD after a backbone-only LSQ fit of the prediction onto the target interface residues

    The fitted structures are supplied in a PDB file

  • I_rmsdsc

    I_rmsdsc is the interface RMSD after a side-chain-only LSQ fit of the prediction onto the target interface residues

  • theta

    theta(L) is the angle mismatch between prediction and target ligand molecule(s), after a superimposed LSQ fit

  • seq ID

    seq ID is the lowest sequence identity between any matching target and prediction ligand or receptor chain

  • M_rmsd

    M_rmsd is the molecular RMSD after a LSQ fit of both the conformational change invariant and the interface residues. Values for both ligand and receptor are given

    The fitted structures are supplied in a PDB file

  • classification

    The classification is the final classification of the submitted model applying the usual criteria of f(nat), L_rmsd and I_rmsdbb, filtering for clashes and sequence identity

  • source

    The source is only listed for scorer submitted files and indicates the uploader model that the revised submission was based upon