An unusual conformational similarity of two peptide folds featuring sulfonamide and carboxamide on the backbone
Kuruppanthara N. Vijayadas; Hilda C. Davis; Amol S. Kotmale; Rupesh L. Gawade; Vedavati G. Puranik; Pattuparambil R. Rajamohanan; Gangadhar J. Sanjayan; Chem.Commun. 48 (2012) 9747–; doi:10.1039/c2cc34533a

data_7108377
_publ_section_title
;
 An unusual conformational similarity of two peptide folds featuring
 sulfonamide and carboxamide on the backbone
;
_journal_name_full               Chem.Commun.
_journal_page_first              9747
_journal_paper_doi               10.1039/c2cc34533a
_journal_volume                  48
_journal_year                    2012
_chemical_formula_moiety         'C13 H18 N2 O5 S'
_chemical_formula_sum            'C13 H18 N2 O5 S'
_chemical_formula_weight         314.35
_chemical_melting_point          432.1(10)
_chemical_name_common            Peptide
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 106.0210(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.8333(2)
_cell_length_b                   8.3635(1)
_cell_length_c                   15.0888(2)
_cell_measurement_reflns_used    7633
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.37
_cell_measurement_theta_min      2.81
_cell_volume                     1556.60(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL,PyMOL and PLATON'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0179
_diffrn_reflns_av_sigmaI/netI    0.0174
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13960
_diffrn_reflns_theta_full        28.39
_diffrn_reflns_theta_max         28.39
_diffrn_reflns_theta_min         2.81
_exptl_absorpt_coefficient_mu    0.230
_exptl_absorpt_correction_T_max  0.9345
_exptl_absorpt_correction_T_min  0.9076
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.341
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.376
_refine_diff_density_min         -0.344
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     194
_refine_ls_number_reflns         3888
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0467
_refine_ls_R_factor_gt           0.0380
_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^)+(0.0566P)^2^+0.3706P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1056
_refine_ls_wR_factor_ref         0.1120
_reflns_number_gt                3262
_reflns_number_total             3888
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc34533a.txt
_cod_data_source_block           compound5
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '158-160 degree centigrade' was
changed to '432.1(10)' - it was converted from degrees Celsius(C) to
Kelvins(K), the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7108377