data_0PO # _chem_comp.id 0PO _chem_comp.name "N-[(1R)-1-{[(1S,2S)-1-benzyl-3-{(2R,4S)-2-(tert-butylcarbamoyl)-4-[(pyridin-3-ylmethyl)sulfanyl]piperidin-1-yl}-2-hydroxypropyl]carbamoyl}-2-methylpropyl]quinoline-2-carboxamide" _chem_comp.type peptide-like _chem_comp.pdbx_type HETAIN _chem_comp.formula "C41 H52 N6 O4 S" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2008-11-07 _chem_comp.pdbx_modified_date 2011-07-13 _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 724.954 _chem_comp.one_letter_code ? _chem_comp.three_letter_code 0PO _chem_comp.pdbx_model_coordinates_details "not provided" _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 1IDA _chem_comp.pdbx_subcomponent_list "QNC VAL P0Y NTB" _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 0PO C C10 C 0 1 N N N 50.306 25.111 9.052 -5.948 -2.214 -0.358 C QNC 1 0PO O1 O1 O 0 1 N N N 51.343 25.706 9.447 -5.755 -3.405 -0.212 O QNC 2 0PO N1 N1 N 0 1 Y N N 47.878 24.858 8.901 -7.523 -0.384 -0.501 N1 QNC 3 0PO C2 C1 C 0 1 Y N N 48.963 25.591 9.245 -7.331 -1.679 -0.341 C2 QNC 4 0PO C3 C2 C 0 1 Y N N 48.690 26.880 9.682 -8.405 -2.562 -0.155 C3 QNC 5 0PO C4 C3 C 0 1 Y N N 47.371 27.324 9.794 -9.683 -2.083 -0.137 C4 QNC 6 0PO C5 C4 C 0 1 Y N N 44.976 26.917 9.512 -11.165 -0.138 -0.302 C5 QNC 7 0PO C6 C5 C 0 1 Y N N 43.939 26.077 9.166 -11.315 1.204 -0.472 C6 QNC 8 0PO C7 C6 C 0 1 Y N N 44.240 24.815 8.726 -10.208 2.031 -0.653 C7 QNC 9 0PO C8 C7 C 0 1 Y N N 45.572 24.401 8.586 -8.946 1.523 -0.665 C8 QNC 10 0PO C9 C8 C 0 1 Y N N 46.317 26.495 9.414 -9.878 -0.700 -0.309 C4A QNC 11 0PO C10 C9 C 0 1 Y N N 46.599 25.246 8.967 -8.748 0.140 -0.493 C8A QNC 12 0PO N N2 N 0 1 N N N 50.385 23.952 8.354 -4.905 -1.379 -0.536 N VAL 13 0PO CA C11 C 0 1 N N S 51.611 23.277 7.960 -3.539 -1.907 -0.553 CA VAL 14 0PO C1 C12 C 0 1 N N N 51.549 23.162 6.461 -2.575 -0.820 -0.153 C VAL 15 0PO O O3 O 0 1 N N N 50.944 22.248 5.909 -2.944 0.335 -0.119 O VAL 16 0PO CB C13 C 0 1 N N N 51.901 21.964 8.691 -3.199 -2.397 -1.963 CB VAL 17 0PO CG1 C14 C 0 1 N N N 53.110 21.267 8.086 -4.107 -3.573 -2.327 CG1 VAL 18 0PO CG2 C15 C 0 1 N N N 52.119 22.239 10.190 -3.412 -1.259 -2.963 CG2 VAL 19 0PO N2 N3 N 0 1 N N N 52.099 24.156 5.772 -1.303 -1.131 0.167 N P0Y 20 0PO CA1 C16 C 0 1 N N S 52.077 24.124 4.310 -0.390 -0.087 0.638 CA1 P0Y 21 0PO CC C17 C 0 1 N N R 53.476 23.861 3.800 1.053 -0.501 0.343 CC P0Y 22 0PO OXT O5 O 0 1 N N N 54.314 25.013 3.961 1.382 -1.663 1.106 O1 P0Y 23 0PO CB1 C18 C 0 1 N N N 51.416 25.416 3.784 -0.568 0.103 2.146 CB1 P0Y 24 0PO CG C19 C 0 1 Y N N 50.083 25.676 4.439 -1.952 0.628 2.426 CG P0Y 25 0PO CD1 C20 C 0 1 Y N N 49.893 26.702 5.364 -2.994 -0.253 2.648 CD1 P0Y 26 0PO CD2 C21 C 0 1 Y N N 48.984 24.875 4.135 -2.179 1.991 2.466 CD2 P0Y 27 0PO CE1 C22 C 0 1 Y N N 48.647 26.911 5.971 -4.264 0.229 2.906 CE1 P0Y 28 0PO CE2 C23 C 0 1 Y N N 47.728 25.078 4.725 -3.449 2.473 2.723 CE2 P0Y 29 0PO CZ C24 C 0 1 Y N N 47.573 26.064 5.697 -4.492 1.592 2.941 CZ P0Y 30 0PO CM C25 C 0 1 N N N 53.585 23.442 2.356 1.998 0.641 0.720 CM P0Y 31 0PO N11 N4 N 0 1 N N N 53.434 22.009 2.287 3.356 0.329 0.254 N11 P0Y 32 0PO C21 C26 C 0 1 N N S 52.969 21.589 0.934 4.182 1.541 0.187 C21 P0Y 33 0PO C31 C27 C 0 1 N N N 52.812 20.088 0.910 5.537 1.203 -0.439 C31 P0Y 34 0PO C41 C28 C 0 1 N N R 53.830 19.219 1.650 6.233 0.134 0.410 C41 P0Y 35 0PO C51 C29 C 0 1 N N N 54.089 19.760 3.015 5.330 -1.099 0.503 C51 P0Y 36 0PO C61 C30 C 0 1 N N N 54.556 21.193 2.813 3.981 -0.694 1.101 C61 P0Y 37 0PO CD C31 C 0 1 N N N 51.699 22.285 0.486 3.485 2.578 -0.656 C P0Y 38 0PO O2 O6 O 0 1 N N N 50.762 22.369 1.324 2.792 2.234 -1.590 O P0Y 39 0PO N12 N6 N 0 1 Y N N 54.803 15.285 -1.579 12.204 -1.656 0.202 N12 P0Y 40 0PO C22 C36 C 0 1 Y N N 54.166 16.348 -1.032 11.031 -1.244 0.642 C22 P0Y 41 0PO C32 C37 C 0 1 Y N N 52.785 16.289 -0.747 9.877 -1.940 0.336 C32 P0Y 42 0PO C42 C38 C 0 1 Y N N 52.064 15.129 -0.997 9.964 -3.083 -0.443 C42 P0Y 43 0PO C52 C39 C 0 1 Y N N 52.749 14.046 -1.565 11.215 -3.486 -0.887 C52 P0Y 44 0PO C62 C40 C 0 1 Y N N 54.121 14.172 -1.859 12.325 -2.739 -0.540 C62 P0Y 45 0PO CE C41 C 0 1 N N N 52.196 17.437 -0.023 8.540 -1.462 0.842 CE P0Y 46 0PO S S1 S 0 1 N N N 53.165 17.535 1.534 7.807 -0.324 -0.365 S P0Y 47 0PO N3 N5 N 0 1 N N N 51.794 22.703 -0.847 3.630 3.887 -0.371 N NTB 48 0PO "C1'" C32 C 0 1 N N N 50.768 23.370 -1.561 2.953 4.895 -1.190 C NTB 49 0PO "C2'" C33 C 0 1 N N N 51.296 23.725 -2.943 1.441 4.669 -1.128 C1 NTB 50 0PO "C3'" C34 C 0 1 N N N 50.378 24.628 -0.837 3.282 6.291 -0.657 C2 NTB 51 0PO "C4'" C35 C 0 1 N N N 49.539 22.476 -1.771 3.428 4.777 -2.639 C3 NTB 52 0PO H3 H1 H 0 1 N N N 49.503 27.544 9.937 -8.221 -3.619 -0.026 H3 QNC 53 0PO H4 H2 H 0 1 N N N 47.167 28.313 10.176 -10.522 -2.748 0.004 H4 QNC 54 0PO H5 H3 H 0 1 N N N 44.757 27.914 9.864 -12.031 -0.768 -0.163 H5 QNC 55 0PO H6 H4 H 0 1 N N N 42.913 26.406 9.240 -12.306 1.634 -0.467 H6 QNC 56 0PO H7 H5 H 0 1 N N N 43.441 24.130 8.484 -10.354 3.093 -0.786 H7 QNC 57 0PO H8 H6 H 0 1 N N N 45.796 23.425 8.182 -8.099 2.179 -0.807 H8 QNC 58 0PO H H8 H 0 1 N N N 49.523 23.523 8.086 -5.059 -0.429 -0.653 H VAL 59 0PO HA H10 H 0 1 N N N 52.485 23.868 8.271 -3.462 -2.738 0.148 HA VAL 60 0PO HB H11 H 0 1 N N N 51.036 21.294 8.577 -2.158 -2.718 -1.994 HB VAL 61 0PO HG11 H12 H 0 0 N N N 53.300 20.327 8.625 -5.146 -3.242 -2.332 HG11 VAL 62 0PO HG12 H13 H 0 0 N N N 52.914 21.048 7.026 -3.840 -3.946 -3.316 HG12 VAL 63 0PO HG13 H14 H 0 0 N N N 53.990 21.922 8.169 -3.983 -4.369 -1.592 HG13 VAL 64 0PO HG21 H15 H 0 0 N N N 52.327 21.293 10.711 -2.766 -0.421 -2.704 HG21 VAL 65 0PO HG22 H16 H 0 0 N N N 52.972 22.922 10.317 -3.170 -1.607 -3.967 HG22 VAL 66 0PO HG23 H17 H 0 0 N N N 51.214 22.699 10.614 -4.453 -0.938 -2.931 HG23 VAL 67 0PO H1 H19 H 0 1 N N N 52.526 24.923 6.251 -0.993 -2.047 0.085 H P0Y 68 0PO HA1 H21 H 0 1 N N N 51.461 23.299 3.923 -0.612 0.848 0.125 HA1 P0Y 69 0PO HC H22 H 0 1 N N N 53.802 23.011 4.418 1.158 -0.723 -0.719 HC P0Y 70 0PO HOR H23 H 0 1 N N N 55.185 24.820 3.633 1.310 -1.538 2.063 HOR P0Y 71 0PO HB2 H24 H 0 1 N N N 52.084 26.264 3.997 -0.432 -0.853 2.651 HB2 P0Y 72 0PO HB3 H25 H 0 1 N N N 51.261 25.315 2.700 0.172 0.815 2.511 HB3 P0Y 73 0PO HD1 H26 H 0 1 N N N 50.721 27.347 5.617 -2.815 -1.318 2.621 HD1 P0Y 74 0PO HD2 H27 H 0 1 N N N 49.103 24.072 3.422 -1.365 2.680 2.297 HD2 P0Y 75 0PO HE1 H28 H 0 1 N N N 48.517 27.735 6.657 -5.077 -0.460 3.079 HE1 P0Y 76 0PO HE2 H29 H 0 1 N N N 46.885 24.473 4.427 -3.627 3.538 2.755 HE2 P0Y 77 0PO HZ H30 H 0 1 N N N 46.639 26.171 6.228 -5.484 1.968 3.141 HZ P0Y 78 0PO HM1 H31 H 0 1 N N N 52.796 23.930 1.765 1.657 1.565 0.253 HM1 P0Y 79 0PO HM2 H32 H 0 1 N N N 54.567 23.734 1.955 2.006 0.764 1.804 HM2 P0Y 80 0PO H2 H35 H 0 1 N N N 53.736 21.898 0.208 4.334 1.933 1.193 H1 P0Y 81 0PO H31 H36 H 0 1 N N N 51.833 19.872 1.363 5.387 0.824 -1.450 H31 P0Y 82 0PO H32 H37 H 0 1 N N N 52.860 19.789 -0.147 6.155 2.099 -0.474 H32 P0Y 83 0PO H41 H38 H 0 1 N N N 54.841 19.216 1.217 6.418 0.527 1.409 H41 P0Y 84 0PO H51 H40 H 0 1 N N N 53.174 19.732 3.624 5.177 -1.514 -0.493 H51 P0Y 85 0PO H52 H41 H 0 1 N N N 54.862 19.168 3.527 5.801 -1.847 1.141 H52 P0Y 86 0PO H61 H42 H 0 1 N N N 55.389 21.209 2.095 4.134 -0.292 2.103 H61 P0Y 87 0PO H62 H43 H 0 1 N N N 54.892 21.608 3.775 3.331 -1.568 1.156 H62 P0Y 88 0PO H21 H54 H 0 1 N N N 54.720 17.249 -0.812 10.971 -0.352 1.248 H21 P0Y 89 0PO H42 H55 H 0 1 N N N 51.012 15.063 -0.762 9.079 -3.648 -0.698 H42 P0Y 90 0PO H53 H56 H 0 1 N N N 52.229 13.123 -1.775 11.320 -4.372 -1.495 H53 P0Y 91 0PO H63 H57 H 0 1 N N N 54.636 13.344 -2.324 13.302 -3.046 -0.882 H63 P0Y 92 0PO H11 H58 H 0 1 N N N 52.285 18.365 -0.607 7.879 -2.317 0.984 H11 P0Y 93 0PO H2A H59 H 0 1 N N N 51.128 17.273 0.182 8.675 -0.946 1.793 H2A P0Y 94 0PO HN H44 H 0 1 N N N 52.649 22.517 -1.331 4.184 4.162 0.377 HN1 NTB 95 0PO "H2'1" H45 H 0 0 N N N 50.512 24.245 -3.513 1.102 4.753 -0.095 H11 NTB 96 0PO "H2'2" H46 H 0 0 N N N 52.173 24.382 -2.843 0.936 5.419 -1.738 H12 NTB 97 0PO "H2'3" H47 H 0 0 N N N 51.585 22.805 -3.472 1.206 3.675 -1.508 H13 NTB 98 0PO "H3'1" H48 H 0 0 N N N 49.582 25.141 -1.396 4.359 6.451 -0.700 H21 NTB 99 0PO "H3'2" H49 H 0 0 N N N 50.014 24.374 0.170 2.778 7.041 -1.266 H22 NTB 100 0PO "H3'3" H50 H 0 0 N N N 51.253 25.290 -0.755 2.944 6.374 0.376 H23 NTB 101 0PO "H4'1" H51 H 0 0 N N N 48.771 23.033 -2.328 3.193 3.783 -3.019 H31 NTB 102 0PO "H4'2" H52 H 0 0 N N N 49.829 21.582 -2.342 2.923 5.527 -3.249 H32 NTB 103 0PO "H4'3" H53 H 0 0 N N N 49.136 22.172 -0.794 4.505 4.938 -2.683 H33 NTB 104 # 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 0PO N1 C2 DOUB Y N 1 0PO N1 C10 SING Y N 2 0PO C2 C3 SING Y N 3 0PO C2 C SING N N 4 0PO C3 C4 DOUB Y N 5 0PO C3 H3 SING N N 6 0PO C4 C9 SING Y N 7 0PO C4 H4 SING N N 8 0PO C5 C6 DOUB Y N 9 0PO C5 C9 SING Y N 10 0PO C5 H5 SING N N 11 0PO C6 C7 SING Y N 12 0PO C6 H6 SING N N 13 0PO C7 C8 DOUB Y N 14 0PO C7 H7 SING N N 15 0PO C8 C10 SING Y N 16 0PO C8 H8 SING N N 17 0PO C9 C10 DOUB Y N 18 0PO C O1 DOUB N N 19 0PO N CA SING N N 20 0PO N H SING N N 21 0PO CA C1 SING N N 22 0PO CA CB SING N N 23 0PO CA HA SING N N 24 0PO C1 O DOUB N N 25 0PO CB CG1 SING N N 26 0PO CB CG2 SING N N 27 0PO CB HB SING N N 28 0PO CG1 HG11 SING N N 29 0PO CG1 HG12 SING N N 30 0PO CG1 HG13 SING N N 31 0PO CG2 HG21 SING N N 32 0PO CG2 HG22 SING N N 33 0PO CG2 HG23 SING N N 34 0PO N2 CA1 SING N N 35 0PO N2 H1 SING N N 36 0PO CA1 CC SING N N 37 0PO CA1 CB1 SING N N 38 0PO CA1 HA1 SING N N 39 0PO CC OXT SING N N 40 0PO CC CM SING N N 41 0PO CC HC SING N N 42 0PO OXT HOR SING N N 43 0PO CB1 CG SING N N 44 0PO CB1 HB2 SING N N 45 0PO CB1 HB3 SING N N 46 0PO CG CD1 DOUB Y N 47 0PO CG CD2 SING Y N 48 0PO CD1 CE1 SING Y N 49 0PO CD1 HD1 SING N N 50 0PO CD2 CE2 DOUB Y N 51 0PO CD2 HD2 SING N N 52 0PO CE1 CZ DOUB Y N 53 0PO CE1 HE1 SING N N 54 0PO CE2 CZ SING Y N 55 0PO CE2 HE2 SING N N 56 0PO CZ HZ SING N N 57 0PO CM HM1 SING N N 58 0PO CM HM2 SING N N 59 0PO N11 C21 SING N N 60 0PO N11 C61 SING N N 61 0PO C21 C31 SING N N 62 0PO C21 CD SING N N 63 0PO C21 H2 SING N N 64 0PO C31 C41 SING N N 65 0PO C31 H31 SING N N 66 0PO C31 H32 SING N N 67 0PO C41 C51 SING N N 68 0PO C41 H41 SING N N 69 0PO C51 C61 SING N N 70 0PO C51 H51 SING N N 71 0PO C51 H52 SING N N 72 0PO C61 H61 SING N N 73 0PO C61 H62 SING N N 74 0PO CD O2 DOUB N N 75 0PO CD N3 SING N N 76 0PO N3 "C1'" SING N N 77 0PO N3 HN SING N N 78 0PO "C1'" "C2'" SING N N 79 0PO "C1'" "C3'" SING N N 80 0PO "C1'" "C4'" SING N N 81 0PO "C2'" "H2'1" SING N N 82 0PO "C2'" "H2'2" SING N N 83 0PO "C2'" "H2'3" SING N N 84 0PO "C3'" "H3'1" SING N N 85 0PO "C3'" "H3'2" SING N N 86 0PO "C3'" "H3'3" SING N N 87 0PO "C4'" "H4'1" SING N N 88 0PO "C4'" "H4'2" SING N N 89 0PO "C4'" "H4'3" SING N N 90 0PO N12 C22 DOUB Y N 91 0PO N12 C62 SING Y N 92 0PO C22 C32 SING Y N 93 0PO C22 H21 SING N N 94 0PO C32 C42 DOUB Y N 95 0PO C32 CE SING N N 96 0PO C42 C52 SING Y N 97 0PO C42 H42 SING N N 98 0PO C52 C62 DOUB Y N 99 0PO C52 H53 SING N N 100 0PO C62 H63 SING N N 101 0PO CE S SING N N 102 0PO CE H11 SING N N 103 0PO CE H2A SING N N 104 0PO C N SING N N 105 0PO C1 N2 SING N N 106 0PO CM N11 SING N N 107 0PO C41 S SING N N 108 # 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 0PO SMILES ACDLabs 12.01 "O=C(c1nc2c(cc1)cccc2)NC(C(=O)NC(C(O)CN4C(C(=O)NC(C)(C)C)CC(SCc3cccnc3)CC4)Cc5ccccc5)C(C)C" 0PO SMILES_CANONICAL CACTVS 3.370 "CC(C)[C@H](NC(=O)c1ccc2ccccc2n1)C(=O)N[C@@H](Cc3ccccc3)[C@H](O)CN4CC[C@H](C[C@H]4C(=O)NC(C)(C)C)SCc5cccnc5" 0PO SMILES CACTVS 3.370 "CC(C)[CH](NC(=O)c1ccc2ccccc2n1)C(=O)N[CH](Cc3ccccc3)[CH](O)CN4CC[CH](C[CH]4C(=O)NC(C)(C)C)SCc5cccnc5" 0PO SMILES_CANONICAL "OpenEye OEToolkits" 1.7.0 "CC(C)[C@@H](C(=O)N[C@@H](Cc1ccccc1)[C@@H](C[N@@]2CC[C@H](C[C@H]2C(=O)NC(C)(C)C)SCc3cccnc3)O)NC(=O)c4ccc5ccccc5n4" 0PO SMILES "OpenEye OEToolkits" 1.7.0 "CC(C)C(C(=O)NC(Cc1ccccc1)C(CN2CCC(CC2C(=O)NC(C)(C)C)SCc3cccnc3)O)NC(=O)c4ccc5ccccc5n4" 0PO InChI InChI 1.03 ;InChI=1S/C41H52N6O4S/c1-27(2)37(45-38(49)33-18-17-30-15-9-10-16-32(30)43-33)40(51)44-34(22-28-12-7-6-8-13-28)36(48)25-47-21-19-31(52-26-29-14-11-20-42-24-29)23-35(47)39(50)46-41(3,4)5/h6-18,20,24,27,31,34-37,48H,19,21-23,25-26H2,1-5H3,(H,44,51)(H,45,49)(H,46,50)/t31-,34+,35+,36-,37+/m1/s1 ; 0PO InChIKey InChI 1.03 IMPWGYVYFQPDFN-SZNOJMITSA-N # 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 0PO "SYSTEMATIC NAME" ACDLabs 12.01 "N-[(2S)-1-{[(2S,3R)-4-{(2S,4R)-2-(tert-butylcarbamoyl)-4-[(pyridin-3-ylmethyl)sulfanyl]piperidin-1-yl}-3-hydroxy-1-phenylbutan-2-yl]amino}-3-methyl-1-oxobutan-2-yl]quinoline-2-carboxamide" 0PO "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.7.0 "N-[(2S)-1-[[(2S,3R)-4-[(1S,2S,4R)-2-(tert-butylcarbamoyl)-4-(pyridin-3-ylmethylsulfanyl)piperidin-1-yl]-3-hydroxy-1-phenyl-butan-2-yl]amino]-3-methyl-1-oxo-butan-2-yl]quinoline-2-carboxamide" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site 0PO "Create component" 2008-11-07 ? 0PO "Other modification" 2010-11-03 RCSB 0PO "Modify aromatic_flag" 2011-06-04 RCSB 0PO "Modify descriptor" 2011-06-04 RCSB #