Diversity of Secondary Structure in Catalytic Peptides with β-Turn-Biased Sequences.
Metrano, Anthony J.; Abascal, Nadia C.; Mercado, Brandon Q.; Paulson, Eric K.; Hurtley, Anna E.; Miller, Scott J.; Journal of the American Chemical Society 139 (2017) 492–516; doi:10.1021/jacs.6b11348

data_4125355
_publ_section_title
;
 Diversity of Secondary Structure in Catalytic Peptides with
 \b-Turn-Biased Sequences.
;
_journal_issue                   1
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              492
_journal_page_last               516
_journal_paper_doi               10.1021/jacs.6b11348
_journal_volume                  139
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C28 H46 N6 O6 S'
_chemical_formula_sum            'C28 H46 N6 O6 S'
_chemical_formula_weight         594.77
_space_group_crystal_system      triclinic
_space_group_IT_number           1
_space_group_name_Hall           'P 1'
_space_group_name_H-M_alt        'P 1'
_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-2014/7
_cell_angle_alpha                94.868(2)
_cell_angle_beta                 100.913(2)
_cell_angle_gamma                90.106(3)
_cell_formula_units_Z            2
_cell_length_a                   10.2959(7)
_cell_length_b                   10.4853(7)
_cell_length_c                   14.9355(10)
_cell_measurement_reflns_used    327
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      68.3
_cell_measurement_theta_min      3.0
_cell_volume                     1577.24(18)
_computing_cell_refinement
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_data_collection
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_data_reduction
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_molecular_graphics
; 
Dolomanov, O.V.; Bourhis, L.J.; Gildea, R.J.; Howard, J.A.K.; Puschmann, H., 
OLEX2: A complete structure solution, refinement and analysis program 
(2009). J. Appl. Cryst., 42, 339-341. 
;
_computing_publication_material  'SHELXL-2013/2 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 22.2
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Rigaku Saturn 944+ CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0862
_diffrn_reflns_av_unetI/netI     0.0701
_diffrn_reflns_Laue_measured_fraction_full 0.976
_diffrn_reflns_Laue_measured_fraction_max 0.975
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10603
_diffrn_reflns_point_group_measured_fraction_full 0.932
_diffrn_reflns_point_group_measured_fraction_max 0.931
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         67.778
_diffrn_reflns_theta_min         3.025
_diffrn_source                   'Sealed Tube'
_exptl_absorpt_coefficient_mu    1.316
_exptl_absorpt_correction_T_max  0.974
_exptl_absorpt_correction_T_min  0.752
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private Communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.252
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.050
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.577
_refine_diff_density_min         -0.419
_refine_diff_density_rms         0.068
_refine_ls_abs_structure_details
; 
 Flack x determined using 3407 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.025(13)
_refine_ls_extinction_coef       0.0051(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     778
_refine_ls_number_reflns         10603
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0751
_refine_ls_R_factor_gt           0.0628
_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^)+(0.0663P)^2^+1.6224P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1551
_refine_ls_wR_factor_ref         0.1684
_reflns_Friedel_coverage         0.909
_reflns_Friedel_fraction_full    0.888
_reflns_Friedel_fraction_max     0.887
_reflns_number_gt                9224
_reflns_number_total             10603
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b11348_si_028.cif
_cod_data_source_block           007-15145-twin
_cod_depositor_comments
'Adding full bibliography for 4125336--4125366.cif.'
_cod_database_code               4125355
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.937
_shelx_estimated_absorpt_t_max   0.974
_shelx_res_checksum              23490
_shelx_hkl_checksum              43700