Intramolecular conformational control in a cyclic peptide composed of alternating l-proline and substituted 3-aminobenzoic acid subunits
Kubik, Stefan; Goddard, Richard; Chemical Communications  (2000) 633–; doi:10.1039/b000568l

data_7115136
_publ_section_title
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 Intramolecular conformational control in a cyclic peptide composed of
 alternating l-proline and substituted 3-aminobenzoic acid subunits
;
_journal_issue                   7
_journal_name_full               'Chemical Communications'
_journal_page_first              633
_journal_paper_doi               10.1039/b000568l
_journal_year                    2000
_chemical_compound_source        'see paper'
_chemical_formula_moiety         'C42 H42 N6 O12, C3 H6 O'
_chemical_formula_sum            'C45 H48 N6 O13'
_chemical_formula_weight         880.89
_chemical_name_common            'cyclo[(L)Pro-AMB]~3~ acetone solvate'
_chemical_name_systematic
; 
 cyclo-tris[(L)-prolyl-alpha-3-amino-4(methoxycarbonyl)-benzoyl] 
 acetone solvate

;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5607(6)
_cell_length_b                   17.6047(10)
_cell_length_c                   22.7991(13)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    100
_cell_measurement_theta_max      34.12
_cell_measurement_theta_min      1.46
_cell_volume                     4238.8(4)
_computing_cell_refinement       'SMART software (Siemens, 1995)'
_computing_data_collection       'SMART software (Siemens, 1995)'
_computing_data_reduction        'SAINT software (Siemens, 1995)'
_computing_molecular_graphics    'ORTEP (Johnson, 1976)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'Siemens SMART'
_diffrn_measurement_method       'CCD \w-scan'
_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  0.1004
_diffrn_reflns_av_sigmaI/netI    0.1429
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            48668
_diffrn_reflns_theta_full        34.12
_diffrn_reflns_theta_max         34.12
_diffrn_reflns_theta_min         1.46
_diffrn_standards_decay_%        0.00
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.380
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    none
_exptl_crystal_description       prism
_exptl_crystal_F_000             1856
_exptl_crystal_size_max          0.64
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.17
_refine_diff_density_max         1.175
_refine_diff_density_min         -0.361
_refine_diff_density_rms         0.072
_refine_ls_abs_structure_details 'Flack, H. D. (1983). Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.3(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.949
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     582
_refine_ls_number_reflns         16532
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.949
_refine_ls_R_factor_all          0.1511
_refine_ls_R_factor_gt           0.0730
_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^)+(0.0851P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1439
_refine_ls_wR_factor_ref         0.1715
_reflns_number_gt                9124
_reflns_number_total             16532
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b000568l.txt
_cod_data_source_block           2.acetone
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               7115136