Crystal structures and binding studies of atovaquone and its derivatives with cytochrome bc1: a molecular basis for drug design
Nayak, Susanta K.; Mallik, Srijita Basu; Kanaujia, Shankar Prasad; Sekar, Kanagaraj; Ranganathan, K. R.; Ananthalakshmi, V.; Jeyaraman, G.; Saralaya, S. S.; Rao, K. Sundararaja; Shridhara, K.; Nagarajan, K.; Row, Tayur N. Guru; CrystEngComm 15 (2013) 4871–; doi:10.1039/c3ce40336j

data_7210170
_publ_section_title
;
 Crystal structures and binding studies of atovaquone and its derivatives
 with cytochrome bc1: a molecular basis for drug design
;
_journal_issue                   24
_journal_name_full               CrystEngComm
_journal_page_first              4871
_journal_paper_doi               10.1039/c3ce40336j
_journal_volume                  15
_journal_year                    2013
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C22 H19 Cl O3'
_chemical_formula_sum            'C22 H19 Cl O3'
_chemical_formula_weight         366.82
_chemical_name_common            cis-Atovaquone
_chemical_name_systematic
;
cis -2-(4-(4-chlorophenyl)cyclohexyl)-3-hydroxynaphthalene-1,4-dione
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 95.450(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.2516(10)
_cell_length_b                   10.9285(9)
_cell_length_c                   12.6302(10)
_cell_measurement_reflns_used    420
_cell_measurement_temperature    292(2)
_cell_measurement_theta_max      27.89
_cell_measurement_theta_min      0.98
_cell_volume                     1820.8(2)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics
'Ortep-3 for Windows (Farrugia, 1997) and CAMERON (Watkin et al., 1993)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXTL V6.14 (Bruker, 2000)'
_diffrn_ambient_temperature      292(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART CCD area detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0174
_diffrn_reflns_av_sigmaI/netI    0.0130
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18281
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.54
_exptl_absorpt_coefficient_mu    0.229
_exptl_absorpt_correction_T_max  0.9902
_exptl_absorpt_correction_T_min  0.9519
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, (Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.160
_refine_diff_density_min         -0.230
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         3572
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0513
_refine_ls_R_factor_gt           0.0386
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0526P)^2^+0.3804P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0994
_refine_ls_wR_factor_ref         0.1101
_reflns_number_gt                2805
_reflns_number_total             3572
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3ce40336j.txt
_cod_data_source_block           sri12
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7210170