mdtraj.Topology# add(to_item, item[, atom_indices, ...]) append_structures(item[, structure_id, ...]) copy(item[, skip_digestion]) extract(item[, atom_indices, ...]) get_structural_attributes get_topological_attributes has_attribute(molecular_system, attribute[, ...]) is_form(item) TopologyIterator(molecular_system) merge(items[, atom_indices, ...]) set to_file_top to_mdtraj_Trajectory to_molsysmt_Topology to_openmm_Topology to_parmed_GromacsTopologyFile to_parmed_Structure to_string_amino_acids_1 to_string_amino_acids_3