CYANA Command: molecules symdist

Parameters

first=atom selection

(required)

second=atom selection

(required)

number=integer

(default: 100000)

append

Description

Imposes distance difference restraints that favor a symmetric relative orientation of the monomers in a symmetric multimer. The command defines restraints on the difference between corresponding distances between atoms selected by the first and the second atom selection. in the monomers of a symmetric multimer. Typically, the first selection selects a subset of the atoms of the first monomer, and the second selection selects the corresponding atoms in the second monomer. For each pair of distances between corresponding atoms A/A’ and B/B’ that match the first and second selection, respectively, a term w_ide(d_AB’-d_A’B)² is added to the target function, where w_ide is the weighting factor defined by the variable weight_sym.