Residue cypResidue = lib.getResidueByName("CYP");
Atom connectionAtomN = cypResidue.getAtoms().get(0);
Atom connectionAtomC = cypResidue.getAtoms().get(8);
Atom connectionAtomS = cypResidue.getAtoms().get(7);
cypResidue.appendExternalBond(connectionAtomN);
cypResidue.appendExternalBond(connectionAtomC);
cypResidue.appendExternalBond(connectionAtomS);
} catch (IOException e) {