Enzymatic Synthesis of Resorcylic Acid Lactones by Cooperation of Fungal Iterative Polyketide Synthases Involved in Hypothemycin Biosynthesis
Hui Zhou; Kangjian Qiao; Zhizeng Gao; Michael J. Meehan; Jesse W.-H. Li; Xiling Zhao; Pieter C. Dorrestein; John C. Vederas; Yi Tang; Journal of the American Chemical Society 132 (2010) 4530–4531; doi:10.1021/ja100060k

data_4102183
_publ_section_title
;
 Enzymatic Synthesis of Resorcylic Acid Lactones by Cooperation of Fungal
 Iterative Polyketide Synthases Involved in Hypothemycin Biosynthesis
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4530
_journal_page_last               4531
_journal_paper_doi               10.1021/ja100060k
_journal_volume                  132
_journal_year                    2010
_chemical_absolute_configuration syn
_chemical_formula_sum            'C18 H24 O6'
_chemical_formula_weight         336.37
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3124(3)
_cell_length_b                   9.5889(3)
_cell_length_c                   21.4172(6)
_cell_measurement_reflns_used    9798
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.54
_cell_measurement_theta_min      2.33
_cell_volume                     1707.10(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0118
_diffrn_reflns_av_sigmaI/netI    0.0087
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            15112
_diffrn_reflns_theta_full        27.58
_diffrn_reflns_theta_max         27.58
_diffrn_reflns_theta_min         1.90
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9836
_exptl_absorpt_correction_T_min  0.9488
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.309
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.272
_refine_diff_density_min         -0.155
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(10)
_refine_ls_extinction_coef       0.0047(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         2269
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0283
_refine_ls_R_factor_gt           0.0276
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0493P)^2^+0.3149P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0764
_refine_ls_wR_factor_ref         0.0771
_reflns_number_gt                2222
_reflns_number_total             2269
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja100060k_si_002.cif
_cod_data_source_block           jcv0903
_cod_database_code               4102183