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Jared Adolf-Bryfogle; email@example.com; PI: Roland Dunbrack
Part of the RosettaAntibody and RosettaAntibodyDesign (RAbD) Framework
Adds SiteConstraints from the Antibody Paratope to the antigen, defined for simplicity as the CDRs. Individual residues of the paratope can be set, or specific CDRs of the paratope can be set as well. These help to keep only the paratope in contact with the antigen (as apposed to the framework) during rigid-body movement. See the Constraint File Overview for more information on manually adding SiteConstraints. Do not forget to add the atom_pair_constraint term to your scorefunction. A weight of .01 for the SiteConstraints seems optimum. Default paratope is defined as all 6 CDRs (or 3 if working with a camelid antibody).
Will only add the constraint if not already present.Uses a Linear Harmonic at 0, 1, 10 by default. Which means paratope-antigen contact will have penalty at greater than 10 A. Linear Harmonic distance tolerance (last number) is set at the interface distance.
Constraint that a residue interacts with some other chain or region. SiteConstraints are a set of ambiguous atom-pair constraints that evaluate whether a residue interacts with some other chain or region - roughly, that it is (or is not) in a binding site. More specifically, if we have a SiteConstraint on a particular residue, that SiteConstraint consists of a set of distance constraints on the C-alpha from that residue to the C-alpha of all other residues in a set, typically the set being specific residues on another chain or chains. After each constraint is evaluated, only the constraint giving the lowest score is used as the SiteConstraint energy for that residue.
<ParatopeSiteConstraintMover paratope_cdrs="(&string (ex: L1,L1,L3))" interface_distance="(&real)" />