Stabilizing structures of cysteine-containing crystals with respect to variations of temperature and pressure by immobilizing amino acid side chains
Minkov, Vasily S.; Boldyreva, Elena V.; Drebushchak, Tatiana N.; Görbitz, Carl Henrik; CrystEngComm 14 (2012) 5943–; doi:10.1039/c2ce25241d

data_7208450
_publ_section_title
;
 Stabilizing structures of cysteine-containing crystals with respect to
 variations of temperature and pressure by immobilizing amino acid side
 chains
;
_journal_issue                   18
_journal_name_full               CrystEngComm
_journal_page_first              5943
_journal_paper_doi               10.1039/c2ce25241d
_journal_volume                  14
_journal_year                    2012
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C3 H8 N O2 S, 0.5(C2 O4)'
_chemical_formula_sum            'C4 H8 N O4 S'
_chemical_formula_weight         166.18
_chemical_name_common            'DL-cysteinium oxalate'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                86.956(4)
_cell_angle_beta                 76.887(4)
_cell_angle_gamma                70.227(5)
_cell_formula_units_Z            2
_cell_length_a                   5.2672(3)
_cell_length_b                   6.6328(4)
_cell_length_c                   10.4111(4)
_cell_measurement_temperature    250(2)
_cell_volume                     333.24(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      250(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0207
_diffrn_reflns_av_sigmaI/netI    0.0219
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5161
_diffrn_reflns_theta_full        30.02
_diffrn_reflns_theta_max         30.02
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    0.440
_exptl_absorpt_correction_T_max  0.9133
_exptl_absorpt_correction_T_min  0.8507
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   'X-RED (Stoe & Cie, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.656
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             174
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.474
_refine_diff_density_min         -0.420
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     96
_refine_ls_number_reflns         1949
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.0400
_refine_ls_R_factor_gt           0.0342
_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^)+(0.0532P)^2^+0.1003P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0979
_refine_ls_wR_factor_ref         0.1004
_reflns_number_gt                1680
_reflns_number_total             1949
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25241d.txt
_cod_data_source_block           DL-cys_ox_21_250K
_cod_database_code               7208450