Data items in the STRUCT_SHEET_HBOND category record details about the hydrogen bonding between residue ranges in a beta- sheet. It is necessary to treat hydrogen bonding independently of the designation of ranges, because the hydrogen bonding may begin in different places for the interactions of a given strand with the one preceding it and the one following it in the sheet.
loop_ _struct_sheet_hbond.sheet_id _struct_sheet_hbond.range_id_1 _struct_sheet_hbond.range_id_2 _struct_sheet_hbond.range_1_beg_label_seq_id _struct_sheet_hbond.range_1_beg_label_atom_id _struct_sheet_hbond.range_2_beg_label_seq_id _struct_sheet_hbond.range_2_beg_label_atom_id _struct_sheet_hbond.range_1_end_label_seq_id _struct_sheet_hbond.range_1_end_label_atom_id _struct_sheet_hbond.range_2_end_label_seq_id _struct_sheet_hbond.range_2_end_label_atom_id sheet_1 strand_a strand_b 11 N 30 O 19 O 40 N sheet_1 strand_b strand_c 31 N 50 O 39 O 60 N sheet_1 strand_c strand_d 51 N 70 O 59 O 80 N sheet_1 strand_d strand_e 71 N 90 O 89 O 100 N sheet_1 strand_e strand_f 91 N 110 O 99 O 120 N sheet_1 strand_f strand_g 111 N 130 O 119 O 140 N sheet_1 strand_g strand_h 131 N 150 O 139 O 160 N sheet_1 strand_h strand_a 151 N 10 O 159 O 180 N
loop_ _struct_sheet_hbond.sheet_id _struct_sheet_hbond.range_id_1 _struct_sheet_hbond.range_id_2 _struct_sheet_hbond.range_1_beg_label_seq_id _struct_sheet_hbond.range_1_beg_label_atom_id _struct_sheet_hbond.range_2_beg_label_seq_id _struct_sheet_hbond.range_2_beg_label_atom_id _struct_sheet_hbond.range_1_end_label_seq_id _struct_sheet_hbond.range_1_end_label_atom_id _struct_sheet_hbond.range_2_end_label_seq_id _struct_sheet_hbond.range_2_end_label_atom_id sheet_2 strand_a strand_b 20 N 119 O 18 O 111 N sheet_2 strand_b strand_c 110 N 33 O 118 N 41 O sheet_2 strand_c strand_d1 38 N 52 O 40 O 50 N sheet_2 strand_c strand_d2 30 N 96 O 36 O 90 N sheet_2 strand_d1 strand_e 51 N 80 O 51 O 80 N sheet_2 strand_d2 strand_e 91 N 76 O 97 O 70 N