data_YE2 # _chem_comp.id YE2 _chem_comp.name ;[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-4-oxidanyl-3-phosphonooxy-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(3~{R})-4-[[3-[2-[(~{E})-2-[3,5-bis(oxidanyl)phenyl]-1-oxidanyl-ethenyl]sulfanylethylamino]-3-oxidanylidene-propyl]amino]-2,2-dimethyl-3-oxidanyl-4-oxidanylidene-butyl] hydrogen phosphate ; _chem_comp.type NON-POLYMER _chem_comp.pdbx_type HETAIN _chem_comp.formula "C29 H42 N7 O19 P3 S" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2016-06-02 _chem_comp.pdbx_modified_date 2017-06-16 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces ? _chem_comp.formula_weight 917.666 _chem_comp.one_letter_code ? _chem_comp.three_letter_code YE2 _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details Corina _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 5KAJ _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site RCSB # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.alt_atom_id _chem_comp_atom.type_symbol _chem_comp_atom.charge _chem_comp_atom.pdbx_align _chem_comp_atom.pdbx_aromatic_flag _chem_comp_atom.pdbx_leaving_atom_flag _chem_comp_atom.pdbx_stereo_config _chem_comp_atom.model_Cartn_x _chem_comp_atom.model_Cartn_y _chem_comp_atom.model_Cartn_z _chem_comp_atom.pdbx_model_Cartn_x_ideal _chem_comp_atom.pdbx_model_Cartn_y_ideal _chem_comp_atom.pdbx_model_Cartn_z_ideal _chem_comp_atom.pdbx_component_atom_id _chem_comp_atom.pdbx_component_comp_id _chem_comp_atom.pdbx_ordinal YE2 CAB C1 C 0 1 N N N 38.045 102.509 -1.898 12.399 1.002 0.814 CAB YE2 1 YE2 CAC C2 C 0 1 N N N 36.907 102.669 -0.807 13.570 1.532 1.218 CAC YE2 2 YE2 CAE C3 C 0 1 Y N N 35.510 100.786 -1.800 15.597 2.867 0.675 CAE YE2 3 YE2 CAF C4 C 0 1 Y N N 35.799 101.616 -0.725 14.466 2.170 0.240 CAF YE2 4 YE2 CAG C5 C 0 1 Y N N 35.031 101.503 0.452 14.190 2.080 -1.128 CAG YE2 5 YE2 CAH C6 C 0 1 Y N N 34.006 100.553 0.516 15.036 2.682 -2.043 CAH YE2 6 YE2 CAI C7 C 0 1 Y N N 33.701 99.703 -0.551 16.158 3.372 -1.606 CAI YE2 7 YE2 CAJ C8 C 0 1 Y N N 34.474 99.842 -1.697 16.437 3.465 -0.250 CAJ YE2 8 YE2 SAA S1 S 0 1 N N N 39.113 103.386 -1.709 11.431 0.046 1.933 SAA YE2 9 YE2 OAD O1 O 0 1 N N N 37.987 101.690 -2.833 11.963 1.209 -0.452 OAD YE2 10 YE2 OAK O2 O 0 1 N N N 33.265 100.436 1.658 14.768 2.595 -3.373 OAK YE2 11 YE2 OAL O3 O 0 1 N N N 34.180 99.021 -2.734 17.536 4.143 0.172 OAL YE2 12 YE2 P1A P1 P 0 1 N N N 45.804 107.230 -14.280 -6.051 -2.738 -1.169 P1A YE2 13 YE2 P2A P2 P 0 1 N N N 48.431 106.169 -13.251 -3.498 -4.240 -1.274 P2A YE2 14 YE2 "P3'" P3 P 0 1 N N N 41.546 110.062 -16.256 -11.331 0.668 1.320 "P3'" YE2 15 YE2 C2P C9 C 0 1 N N N 40.315 103.445 -2.594 10.035 -0.376 0.861 C2P YE2 16 YE2 C3P C10 C 0 1 N N N 40.183 104.635 -3.611 9.033 -1.230 1.641 C3P YE2 17 YE2 N4P N1 N 0 1 N N N 40.968 104.512 -4.857 7.903 -1.571 0.773 N4P YE2 18 YE2 C5P C11 C 0 1 N N N 42.122 105.285 -5.117 6.891 -2.323 1.249 C5P YE2 19 YE2 O5P O4 O 0 1 N N N 42.547 106.097 -4.302 6.916 -2.718 2.396 O5P YE2 20 YE2 C6P C12 C 0 1 N N N 42.724 104.963 -6.474 5.729 -2.675 0.356 C6P YE2 21 YE2 C7P C13 C 0 1 N N N 43.554 106.128 -7.064 4.727 -3.529 1.136 C7P YE2 22 YE2 N8P N2 N 0 1 N N N 44.296 105.566 -8.189 3.597 -3.870 0.268 N8P YE2 23 YE2 C9P C14 C 0 1 N N N 45.438 106.087 -8.715 2.585 -4.622 0.744 C9P YE2 24 YE2 O9P O5 O 0 1 N N N 45.975 107.145 -8.321 2.563 -4.938 1.915 O9P YE2 25 YE2 "C5'" C15 C 0 1 N N N 43.671 106.405 -15.609 -7.629 -0.651 -0.627 "C5'" YE2 26 YE2 "O5'" O6 O 0 1 N N N 44.584 106.115 -14.585 -6.466 -1.428 -0.331 "O5'" YE2 27 YE2 "C4'" C16 C 0 1 N N R 42.315 106.895 -15.071 -7.725 0.518 0.357 "C4'" YE2 28 YE2 "O4'" O7 O 0 1 N N N 41.768 106.004 -14.078 -6.635 1.429 0.141 "O4'" YE2 29 YE2 "C3'" C17 C 0 1 N N S 42.419 108.316 -14.391 -9.031 1.299 0.115 "C3'" YE2 30 YE2 "O3'" O8 O 0 1 N N N 41.384 109.106 -14.761 -9.845 1.288 1.289 "O3'" YE2 31 YE2 "C2'" C18 C 0 1 N N R 42.327 107.891 -12.921 -8.558 2.739 -0.202 "C2'" YE2 32 YE2 "O2'" O9 O 0 1 N N N 41.692 108.811 -12.131 -9.399 3.704 0.433 "O2'" YE2 33 YE2 "C1'" C19 C 0 1 N N R 41.300 106.828 -13.093 -7.135 2.756 0.412 "C1'" YE2 34 YE2 N1A N3 N 0 1 Y N N 38.250 106.085 -9.087 -5.527 7.695 0.354 N1A YE2 35 YE2 O1A O10 O 0 1 N N N 45.334 108.126 -13.196 -5.951 -2.395 -2.605 O1A YE2 36 YE2 C2A C20 C 0 1 Y N N 38.104 106.773 -10.262 -6.367 7.110 1.189 C2A YE2 37 YE2 O2A O11 O 0 1 N N N 46.267 107.750 -15.620 -7.168 -3.880 -0.967 O2A YE2 38 YE2 N3A N4 N 0 1 Y N N 38.959 106.921 -11.273 -6.691 5.838 1.089 N3A YE2 39 YE2 O3A O12 O 0 1 N N N 46.914 106.170 -13.745 -4.629 -3.281 -0.646 O3A YE2 40 YE2 C4A C21 C 0 1 Y N N 40.126 106.259 -11.031 -6.176 5.081 0.126 C4A YE2 41 YE2 O4A O13 O 0 1 N N N 49.039 107.502 -13.270 -3.249 -3.853 -2.681 O4A YE2 42 YE2 C5A C22 C 0 1 Y N N 40.416 105.496 -9.853 -5.278 5.657 -0.788 C5A YE2 43 YE2 O5A O14 O 0 1 N N N 49.146 104.881 -13.639 -3.999 -5.769 -1.219 O5A YE2 44 YE2 C6A C23 C 0 1 Y N N 39.425 105.441 -8.896 -4.962 7.018 -0.641 C6A YE2 45 YE2 N6A N5 N 0 1 N N N 39.611 104.730 -7.714 -4.084 7.640 -1.511 N6A YE2 46 YE2 O6A O15 O 0 1 N N N 48.116 105.915 -11.552 -2.137 -4.090 -0.428 O6A YE2 47 YE2 N7A N6 N 0 1 Y N N 41.695 104.947 -9.919 -4.908 4.682 -1.653 N7A YE2 48 YE2 O7A O16 O 0 1 N N N 40.258 110.867 -16.104 -11.291 -0.733 0.844 O7A YE2 49 YE2 C8A C24 C 0 1 Y N N 42.165 105.371 -11.118 -5.508 3.572 -1.336 C8A YE2 50 YE2 O8A O17 O 0 1 N N N 41.592 109.013 -17.340 -11.898 0.707 2.826 O8A YE2 51 YE2 N9A N7 N 0 1 Y N N 41.220 106.152 -11.810 -6.301 3.766 -0.245 N9A YE2 52 YE2 O9A O18 O 0 1 N N N 42.853 110.795 -16.027 -12.293 1.533 0.362 O9A YE2 53 YE2 C10 C25 C 0 1 N N R 45.990 105.266 -9.903 1.481 -5.071 -0.179 C10 YE2 54 YE2 O10 O19 O 0 1 N N N 45.047 104.273 -10.167 1.814 -4.724 -1.524 O10 YE2 55 YE2 C11 C26 C 0 1 N N N 47.396 104.614 -9.770 0.174 -4.382 0.217 C11 YE2 56 YE2 C12 C27 C 0 1 N N N 48.024 104.613 -11.162 -0.916 -4.734 -0.798 C12 YE2 57 YE2 C13 C28 C 0 1 N N N 47.280 103.192 -9.266 -0.252 -4.857 1.608 C13 YE2 58 YE2 C14 C29 C 0 1 N N N 48.321 105.397 -8.843 0.382 -2.866 0.238 C14 YE2 59 YE2 H1 H1 H 0 1 N N N 36.913 103.510 -0.130 13.851 1.489 2.260 H1 YE2 60 YE2 H2 H2 H 0 1 N N N 36.080 100.866 -2.714 15.813 2.943 1.730 H2 YE2 61 YE2 H3 H3 H 0 1 N N N 35.232 102.145 1.297 13.318 1.542 -1.469 H3 YE2 62 YE2 H4 H4 H 0 1 N N N 32.905 98.976 -0.488 16.816 3.839 -2.324 H4 YE2 63 YE2 H5 H5 H 0 1 N N N 32.614 99.753 1.545 14.215 3.313 -3.710 H5 YE2 64 YE2 H6 H6 H 0 1 N N N 33.459 98.452 -2.493 18.331 3.597 0.247 H6 YE2 65 YE2 H7 H7 H 0 1 N N N 41.214 103.593 -1.977 9.547 0.539 0.523 H7 YE2 66 YE2 H8 H8 H 0 1 N N N 40.403 102.500 -3.150 10.396 -0.936 -0.002 H8 YE2 67 YE2 H9 H9 H 0 1 N N N 39.122 104.724 -3.889 9.521 -2.144 1.979 H9 YE2 68 YE2 H10 H10 H 0 1 N N N 40.506 105.553 -3.099 8.672 -0.670 2.504 H10 YE2 69 YE2 H11 H11 H 0 1 N N N 40.669 103.852 -5.547 7.884 -1.256 -0.144 H11 YE2 70 YE2 H12 H12 H 0 1 N N N 43.379 104.086 -6.367 5.241 -1.760 0.018 H12 YE2 71 YE2 H13 H13 H 0 1 N N N 41.907 104.727 -7.172 6.090 -3.234 -0.507 H13 YE2 72 YE2 H14 H14 H 0 1 N N N 42.890 106.934 -7.409 5.215 -4.443 1.474 H14 YE2 73 YE2 H15 H15 H 0 1 N N N 44.248 106.524 -6.308 4.366 -2.969 1.999 H15 YE2 74 YE2 H16 H16 H 0 1 N N N 43.936 104.732 -8.606 3.578 -3.555 -0.649 H16 YE2 75 YE2 H17 H17 H 0 1 N N N 44.099 107.189 -16.251 -7.559 -0.265 -1.644 H17 YE2 76 YE2 H18 H18 H 0 1 N N N 43.506 105.494 -16.203 -8.517 -1.276 -0.536 H18 YE2 77 YE2 H19 H19 H 0 1 N N N 41.617 106.977 -15.917 -7.698 0.144 1.380 H19 YE2 78 YE2 H20 H20 H 0 1 N N N 43.403 108.760 -14.602 -9.576 0.880 -0.730 H20 YE2 79 YE2 H21 H21 H 0 1 N N N 43.283 107.513 -12.531 -8.519 2.908 -1.278 H21 YE2 80 YE2 H22 H22 H 0 1 N N N 41.665 108.495 -11.235 -9.143 4.621 0.264 H22 YE2 81 YE2 H23 H23 H 0 1 N N N 40.331 107.277 -13.356 -7.183 2.936 1.486 H23 YE2 82 YE2 H24 H24 H 0 1 N N N 37.153 107.270 -10.388 -6.803 7.697 1.984 H24 YE2 83 YE2 H25 H25 H 0 1 N N N 46.203 108.698 -15.632 -7.288 -4.155 -0.048 H25 YE2 84 YE2 H26 H26 H 0 1 N N N 50.040 105.079 -13.893 -4.182 -6.090 -0.326 H26 YE2 85 YE2 H27 H27 H 0 1 N N N 38.792 104.808 -7.145 -3.875 8.581 -1.399 H27 YE2 86 YE2 H28 H28 H 0 1 N N N 39.779 103.767 -7.927 -3.678 7.136 -2.233 H28 YE2 87 YE2 H29 H29 H 0 1 N N N 43.149 105.137 -11.498 -5.394 2.634 -1.860 H29 YE2 88 YE2 H30 H30 H 0 1 N N N 40.763 109.000 -17.804 -12.791 0.348 2.920 H30 YE2 89 YE2 H31 H31 H 0 1 N N N 42.674 111.702 -15.809 -12.367 2.463 0.615 H31 YE2 90 YE2 H32 H32 H 0 1 N N N 46.037 105.947 -10.766 1.360 -6.152 -0.102 H32 YE2 91 YE2 H33 H33 H 0 1 N N N 45.344 103.739 -10.894 1.937 -3.775 -1.666 H33 YE2 92 YE2 H34 H34 H 0 1 N N N 47.390 104.051 -11.863 -1.064 -5.814 -0.812 H34 YE2 93 YE2 H35 H35 H 0 1 N N N 49.024 104.157 -11.126 -0.612 -4.396 -1.788 H35 YE2 94 YE2 H36 H36 H 0 1 N N N 48.284 102.750 -9.179 0.487 -4.538 2.343 H36 YE2 95 YE2 H37 H37 H 0 1 N N N 46.793 103.191 -8.280 -1.222 -4.427 1.858 H37 YE2 96 YE2 H38 H38 H 0 1 N N N 46.679 102.601 -9.972 -0.324 -5.945 1.614 H38 YE2 97 YE2 H39 H39 H 0 1 N N N 49.297 104.893 -8.787 0.685 -2.528 -0.753 H39 YE2 98 YE2 H40 H40 H 0 1 N N N 48.457 106.416 -9.236 -0.549 -2.376 0.520 H40 YE2 99 YE2 H41 H41 H 0 1 N N N 47.876 105.448 -7.838 1.158 -2.616 0.961 H41 YE2 100 YE2 H42 H42 H 0 1 N N N 38.770 101.761 -3.366 11.114 0.790 -0.650 H42 YE2 101 # loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.value_order _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_ordinal YE2 CAB CAC DOUB N E 1 YE2 CAB SAA SING N N 2 YE2 CAB OAD SING N N 3 YE2 CAC CAF SING N N 4 YE2 CAE CAF DOUB Y N 5 YE2 CAE CAJ SING Y N 6 YE2 CAF CAG SING Y N 7 YE2 CAG CAH DOUB Y N 8 YE2 CAH CAI SING Y N 9 YE2 CAH OAK SING N N 10 YE2 CAI CAJ DOUB Y N 11 YE2 CAJ OAL SING N N 12 YE2 SAA C2P SING N N 13 YE2 P1A "O5'" SING N N 14 YE2 P1A O1A DOUB N N 15 YE2 P1A O2A SING N N 16 YE2 P1A O3A SING N N 17 YE2 P2A O3A SING N N 18 YE2 P2A O4A DOUB N N 19 YE2 P2A O5A SING N N 20 YE2 P2A O6A SING N N 21 YE2 "P3'" "O3'" SING N N 22 YE2 "P3'" O7A DOUB N N 23 YE2 "P3'" O8A SING N N 24 YE2 "P3'" O9A SING N N 25 YE2 C2P C3P SING N N 26 YE2 C3P N4P SING N N 27 YE2 N4P C5P SING N N 28 YE2 C5P O5P DOUB N N 29 YE2 C5P C6P SING N N 30 YE2 C6P C7P SING N N 31 YE2 C7P N8P SING N N 32 YE2 N8P C9P SING N N 33 YE2 C9P O9P DOUB N N 34 YE2 C9P C10 SING N N 35 YE2 "C5'" "O5'" SING N N 36 YE2 "C5'" "C4'" SING N N 37 YE2 "C4'" "O4'" SING N N 38 YE2 "C4'" "C3'" SING N N 39 YE2 "O4'" "C1'" SING N N 40 YE2 "C3'" "O3'" SING N N 41 YE2 "C3'" "C2'" SING N N 42 YE2 "C2'" "O2'" SING N N 43 YE2 "C2'" "C1'" SING N N 44 YE2 "C1'" N9A SING N N 45 YE2 N1A C2A DOUB Y N 46 YE2 N1A C6A SING Y N 47 YE2 C2A N3A SING Y N 48 YE2 N3A C4A DOUB Y N 49 YE2 C4A C5A SING Y N 50 YE2 C4A N9A SING Y N 51 YE2 C5A C6A DOUB Y N 52 YE2 C5A N7A SING Y N 53 YE2 C6A N6A SING N N 54 YE2 O6A C12 SING N N 55 YE2 N7A C8A DOUB Y N 56 YE2 C8A N9A SING Y N 57 YE2 C10 O10 SING N N 58 YE2 C10 C11 SING N N 59 YE2 C11 C12 SING N N 60 YE2 C11 C13 SING N N 61 YE2 C11 C14 SING N N 62 YE2 CAC H1 SING N N 63 YE2 CAE H2 SING N N 64 YE2 CAG H3 SING N N 65 YE2 CAI H4 SING N N 66 YE2 OAK H5 SING N N 67 YE2 OAL H6 SING N N 68 YE2 C2P H7 SING N N 69 YE2 C2P H8 SING N N 70 YE2 C3P H9 SING N N 71 YE2 C3P H10 SING N N 72 YE2 N4P H11 SING N N 73 YE2 C6P H12 SING N N 74 YE2 C6P H13 SING N N 75 YE2 C7P H14 SING N N 76 YE2 C7P H15 SING N N 77 YE2 N8P H16 SING N N 78 YE2 "C5'" H17 SING N N 79 YE2 "C5'" H18 SING N N 80 YE2 "C4'" H19 SING N N 81 YE2 "C3'" H20 SING N N 82 YE2 "C2'" H21 SING N N 83 YE2 "O2'" H22 SING N N 84 YE2 "C1'" H23 SING N N 85 YE2 C2A H24 SING N N 86 YE2 O2A H25 SING N N 87 YE2 O5A H26 SING N N 88 YE2 N6A H27 SING N N 89 YE2 N6A H28 SING N N 90 YE2 C8A H29 SING N N 91 YE2 O8A H30 SING N N 92 YE2 O9A H31 SING N N 93 YE2 C10 H32 SING N N 94 YE2 O10 H33 SING N N 95 YE2 C12 H34 SING N N 96 YE2 C12 H35 SING N N 97 YE2 C13 H36 SING N N 98 YE2 C13 H37 SING N N 99 YE2 C13 H38 SING N N 100 YE2 C14 H39 SING N N 101 YE2 C14 H40 SING N N 102 YE2 C14 H41 SING N N 103 YE2 OAD H42 SING N N 104 # loop_ _pdbx_chem_comp_descriptor.comp_id _pdbx_chem_comp_descriptor.type _pdbx_chem_comp_descriptor.program _pdbx_chem_comp_descriptor.program_version _pdbx_chem_comp_descriptor.descriptor YE2 InChI InChI 1.03 ;InChI=1S/C29H42N7O19P3S/c1-29(2,24(42)27(43)32-4-3-19(39)31-5-6-59-20(40)9-15-7-16(37)10-17(38)8-15)12-52-58(49,50)55-57(47,48)51-11-18-23(54-56(44,45)46)22(41)28(53-18)36-14-35-21-25(30)33-13-34-26(21)36/h7-10,13-14,18,22-24,28,37-38,40-42H,3-6,11-12H2,1-2H3,(H,31,39)(H,32,43)(H,47,48)(H,49,50)(H2,30,33,34)(H2,44,45,46)/b20-9+/t18-,22-,23-,24+,28-/m1/s1 ; YE2 InChIKey InChI 1.03 LMMCTIXJVGWLEK-NUSWKBOXSA-N YE2 SMILES_CANONICAL CACTVS 3.385 "CC(C)(CO[P](O)(=O)O[P](O)(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1O[P](O)(O)=O)n2cnc3c(N)ncnc23)[C@@H](O)C(=O)NCCC(=O)NCCS\C(O)=C\c4cc(O)cc(O)c4" YE2 SMILES CACTVS 3.385 "CC(C)(CO[P](O)(=O)O[P](O)(=O)OC[CH]1O[CH]([CH](O)[CH]1O[P](O)(O)=O)n2cnc3c(N)ncnc23)[CH](O)C(=O)NCCC(=O)NCCSC(O)=Cc4cc(O)cc(O)c4" YE2 SMILES_CANONICAL "OpenEye OEToolkits" 2.0.5 "CC(C)(COP(=O)(O)OP(=O)(O)OC[C@@H]1[C@H]([C@H]([C@@H](O1)n2cnc3c2ncnc3N)O)OP(=O)(O)O)[C@H](C(=O)NCCC(=O)NCCS/C(=C/c4cc(cc(c4)O)O)/O)O" YE2 SMILES "OpenEye OEToolkits" 2.0.5 "CC(C)(COP(=O)(O)OP(=O)(O)OCC1C(C(C(O1)n2cnc3c2ncnc3N)O)OP(=O)(O)O)C(C(=O)NCCC(=O)NCCSC(=Cc4cc(cc(c4)O)O)O)O" # loop_ _pdbx_chem_comp_identifier.comp_id _pdbx_chem_comp_identifier.type _pdbx_chem_comp_identifier.program _pdbx_chem_comp_identifier.program_version _pdbx_chem_comp_identifier.identifier YE2 "SYSTEMATIC NAME" "OpenEye OEToolkits" 2.0.5 ;[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-4-oxidanyl-3-phosphonooxy-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(3~{R})-4-[[3-[2-[(~{E})-2-[3,5-bis(oxidanyl)phenyl]-1-oxidanyl-ethenyl]sulfanylethylamino]-3-oxidanylidene-propyl]amino]-2,2-dimethyl-3-oxidanyl-4-oxidanylidene-butyl] hydrogen phosphate ; # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site YE2 "Create component" 2016-06-02 RCSB YE2 "Initial release" 2017-06-21 RCSB #