Peptide turns through just ‘one atom’! A sulfamide group nucleates folding and stabilizes new supramolecular topologies in short peptides
Gopinath, Pushparathinam; Ramkumar, Venkatachalam; Muraleedharan, Kannoth Manheri; CrystEngComm 16 (2014) 10371–; doi:10.1039/C4CE01938E

data_7218261
_publ_section_title
;
 Peptide turns through just &#x2018;one atom&#x2019;! A sulfamide group
 nucleates folding and stabilizes new supramolecular topologies in short
 peptides
;
_journal_issue                   45
_journal_name_full               CrystEngComm
_journal_page_first              10371
_journal_paper_doi               10.1039/C4CE01938E
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C14 H26 N4 O8 S'
_chemical_formula_sum            'C14 H26 N4 O8 S'
_chemical_formula_weight         410.45
_space_group_IT_number           1
_symmetry_cell_setting           triclinic
_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                110.316(2)
_cell_angle_beta                 90.313(2)
_cell_angle_gamma                100.2330(10)
_cell_formula_units_Z            1
_cell_length_a                   4.9125(2)
_cell_length_b                   9.3729(4)
_cell_length_c                   12.3508(5)
_cell_measurement_reflns_used    5351
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      0.00
_cell_measurement_theta_min      0.00
_cell_volume                     523.43(4)
_computing_cell_refinement       APEXII,Bruker,2004
_computing_data_collection       APEXII,Bruker,2004
_computing_data_reduction        SAINT,Bruker,2004
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0158
_diffrn_reflns_av_sigmaI/netI    0.0214
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6100
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    0.200
_exptl_absorpt_correction_T_max  0.9706
_exptl_absorpt_correction_T_min  0.9332
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker,2004)'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.302
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rectangular
_exptl_crystal_F_000             218
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.287
_refine_diff_density_min         -0.255
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.03(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     250
_refine_ls_number_reflns         2992
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0325
_refine_ls_R_factor_gt           0.0320
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0554P)^2^+0.0890P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0869
_refine_ls_wR_factor_ref         0.0877
_reflns_number_gt                2944
_reflns_number_total             2992
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce01938e2.cif
_cod_data_source_block           new
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 

 Adding full bibliography for 7218258--7218261.cif.
;
_cod_original_sg_symbol_H-M      P1
_cod_database_code               7218261