Computation meets experiment: identification of highly efficient fibrillating peptides
Sori, Lorenzo; Pizzi, Andrea; Bergamaschi, Greta; Gori, Alessandro; Gautieri, Alfonso; Demitri, Nicola; Soncini, Monica; Metrangolo, Pierangelo; CrystEngComm 25 (2023) 4503–4510; doi:10.1039/D3CE00495C

data_7246980
_publ_section_title
;
 Computation meets experiment: identification of highly efficient
 fibrillating peptides
;
_journal_issue                   32
_journal_name_full               CrystEngComm
_journal_page_first              4503
_journal_page_last               4510
_journal_paper_doi               10.1039/D3CE00495C
_journal_volume                  25
_journal_year                    2023
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C34 H42 N7 O10, C2 F3 O2, 4.5(H2 O)'
_chemical_formula_sum            'C36 H51 F3 N7 O16.25'
_chemical_formula_weight         898.83
_space_group_crystal_system      monoclinic
_space_group_IT_number           5
_space_group_name_Hall           'C 2y'
_space_group_name_H-M_alt        'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2022-06-11 deposited with the CCDC.	2023-07-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.44(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   31.544(6)
_cell_length_b                   9.474(2)
_cell_length_c                   15.431(3)
_cell_measurement_reflns_used    1864
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      20.481
_cell_measurement_theta_min      1.273
_cell_volume                     4607.3(16)
_computing_cell_refinement       'XDS (Kabsch, 2010)'
_computing_data_collection       'Elettra XRD1 Data Collection SW'
_computing_data_reduction        'XDS (Kabsch, 2010)'
_computing_molecular_graphics    'Ortep3 for Windows - Coot'
_computing_publication_material  'enCIFer - publCIF'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type
;
'Huber 4-circles Kappa Goniometer, Pilatus 2M detector'
;
_diffrn_measurement_method       'Rotating crystal'
_diffrn_radiation_type           Synchrotron
_diffrn_radiation_wavelength     0.700
_diffrn_reflns_av_R_equivalents  0.1427
_diffrn_reflns_av_unetI/netI     0.1788
_diffrn_reflns_Laue_measured_fraction_full 0.980
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9914
_diffrn_reflns_point_group_measured_fraction_full 0.950
_diffrn_reflns_point_group_measured_fraction_max 0.950
_diffrn_reflns_theta_full        20.481
_diffrn_reflns_theta_max         20.481
_diffrn_reflns_theta_min         1.273
_diffrn_source                   'Elettra Synchrotron - XRD1 BL'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.105
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_description       'Thin needles'
_exptl_crystal_F_000             1892
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.399
_refine_diff_density_min         -0.326
_refine_diff_density_rms         0.076
_refine_ls_abs_structure_details
;
 Flack x determined using 497 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   2.3(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     441
_refine_ls_number_reflns         4597
_refine_ls_number_restraints     370
_refine_ls_restrained_S_all      1.156
_refine_ls_R_factor_all          0.2494
_refine_ls_R_factor_gt           0.1330
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+54.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2853
_refine_ls_wR_factor_ref         0.3484
_reflns_Friedel_coverage         0.796
_reflns_Friedel_fraction_full    0.915
_reflns_Friedel_fraction_max     0.915
_reflns_number_gt                1906
_reflns_number_total             4597
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ce00495c2.cif
_cod_data_source_block           HFEEF
_cod_depositor_comments
'Adding full bibliography for 7246978--7246981.cif.'
_cod_original_cell_volume        4607.4(16)
_cod_original_sg_symbol_H-M      'C 2'
_cod_database_code               7246980
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.990
_shelx_estimated_absorpt_t_max   0.998
_shelx_res_checksum              84065
_shelx_hkl_checksum              30011