code: public Structure getStructureForCathDomain(StructureName structureName) throws IOException, StructureException {
  		return getStructureForCathDomain(structureName, CathFactory.getCathDatabase());
  	}
docs: Returns a {@link Structure} corresponding to the CATH identifier supplied in {@code structureName}, using the the {@link CathDatabase}
  at {@link CathFactory#getCathDatabase()}.