Novel peptide foldameric motifs: a step forward in our understanding of the fully-extended conformation/3(10)-helix coexistence.
Formaggio, Fernando; Crisma, Marco; Ballano, Gema; Peggion, Cristina; Venanzi, Mariano; Toniolo, Claudio; Organic & biomolecular chemistry 10 (2012) 2413–2421; doi:10.1039/c2ob06863j

data_7152257
_publ_section_title
;
 Novel peptide foldameric motifs: a step forward in our understanding of
 the fully-extended conformation/3(10)-helix coexistence.
;
_journal_issue                   12
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              2413
_journal_page_last               2421
_journal_paper_doi               10.1039/c2ob06863j
_journal_volume                  10
_journal_year                    2012
_chemical_formula_sum            'C37 H39 N3 O6'
_chemical_formula_weight         621.71
_chemical_name_systematic
;
1-Pyreneacetyl-diethylglycyl-diethylglycinate
para-nitrobenzyl ester
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.4477(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.68181(10)
_cell_length_b                   11.93226(15)
_cell_length_c                   25.6913(3)
_cell_measurement_reflns_used    19918
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      71.31
_cell_measurement_theta_min      3.44
_cell_volume                     3268.64(6)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.47 (release 21-12-2010 CrysAlis171 .NET)
(compiled Dec 21 2010,18:08:13)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.47 (release 21-12-2010 CrysAlis171 .NET)
(compiled Dec 21 2010,18:08:13)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.47 (release 21-12-2010 CrysAlis171 .NET)
(compiled Dec 21 2010,18:08:13)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2002 (Burla et al., 2003)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.1274
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0562
_diffrn_reflns_av_sigmaI/netI    0.0230
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            43609
_diffrn_reflns_theta_full        71.44
_diffrn_reflns_theta_max         71.44
_diffrn_reflns_theta_min         3.45
_exptl_absorpt_coefficient_mu    0.697
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.04547
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.47 (release 21-12-2010 CrysAlis171 .NET)
(compiled Dec 21 2010,18:08:13)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1320
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.276
_refine_diff_density_min         -0.247
_refine_diff_density_rms         0.042
_refine_ls_extinction_coef       0.0013(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     570
_refine_ls_number_reflns         6306
_refine_ls_number_restraints     188
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0591
_refine_ls_R_factor_gt           0.0539
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1064P)^2^+0.4789P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1549
_refine_ls_wR_factor_ref         0.1621
_reflns_number_gt                5529
_reflns_number_total             6306
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ob06863j.txt
_cod_data_source_block           mc187f
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               7152257