load pdb inline select not (nucleic) colour violet restrict *C || *C colour redorange restrict (*C && 137-190) || (*C && 367-409) centre (*C && 137-190) || (*C && 367-409) wireframe off backbone 80 colour structure select nucleic && ((*C && 137-190) || (*C && 367-409) ) backbone off wireframe on colour shapely set hetero on select hetero && not solvent colour cpk cpk on select not ((*C && 137-190) || (*C && 367-409) ) backbone 80 exit [1j4z] [1j4z] [j4]