ID code: '4MCF' CHIRALITY (03 Nov 1998) Checks the chirality and the naming of substituents of chiral and prochiral centers in nucleic acid structures. The molecular structure is read from a PDB file. Only the first model is evaluated. ---------------------------------------------------------- Center Reference for correct naming ---------------------------------------------------------- C1' alpha/beta nomenclature of anomeric sugars, base in beta position in natural nucleosids. C2' IUPAC. 1983. Eur J Biochem, 131: 9-15. C3' IUPAC. 1983. Eur J Biochem, 131: 9-15. C4' IUPAC. 1983. Eur J Biochem, 131: 9-15. C5' IUPAC. 1983. Eur J Biochem, 131: 9-15. P Brookhaven PDB entry '1BNA', O1P -> major groove, O2P -> minor groove. ---------------------------------------------------------- Author: Peter Slickers (slickers@imb-jena.de) Biocomputing, IMB Jena, Germany --------------------------------------------------------------------------------- Seq No Atom Residue H1' base O4' H1' base C2' --------------------------------------------------------------------------------- 12 C1' A C 2 beta 7 13 10 34 C1' G C 3 beta 29 35 32 57 C1' U C 4 beta 52 58 55 77 C1' G C 5 beta 72 78 75 100 C1' G C 6 beta 95 101 98 123 C1' U C 7 beta 118 124 121 143 C1' C C 8 beta 138 144 141 163 C1' U C 9 beta 158 164 161 183 C1' U C 10 beta 178 184 181 201 C1' A D 1 beta 196 202 199 223 C1' A D 2 beta 218 224 221 245 C1' G D 3 beta 240 246 243 268 C1' A D 4 beta 263 269 266 290 C1' C D 5 beta 285 291 288 310 C1' U D 6 beta 305 311 308 330 C1' G D 7 beta 325 331 328 353 C1' C D 8 beta 348 354 351 373 C1' C D 9 beta 368 374 371 393 C1' U D 10 beta 388 394 391 413 C1' G D 11 beta 408 414 411 437 C1' G A 3 beta 432 438 435 460 C1' U A 4 beta 455 461 458 480 C1' G A 5 beta 475 481 478 503 C1' G A 6 beta 498 504 501 526 C1' U A 7 beta 521 527 524 546 C1' C A 8 beta 541 547 544 566 C1' U A 9 beta 561 567 564 586 C1' U A 10 beta 581 587 584 604 C1' A B 1 beta 599 605 602 626 C1' A B 2 beta 621 627 624 648 C1' G B 3 beta 643 649 646 671 C1' A B 4 beta 666 672 669 693 C1' C B 5 beta 688 694 691 713 C1' U B 6 beta 708 714 711 733 C1' G B 7 beta 728 734 731 756 C1' C B 8 beta 751 757 754 776 C1' C B 9 beta 771 777 774 796 C1' U B 10 beta 791 797 794 818 C1' C E 1 beta 813 819 816 838 C1' A E 2 beta 833 839 836 860 C1' G E 3 beta 855 861 858 883 C1' U E 4 beta 878 884 881 903 C1' G E 5 beta 898 904 901 926 C1' G E 6 beta 921 927 924 949 C1' U E 7 beta 944 950 947 969 C1' C E 8 beta 964 970 967 989 C1' U E 9 beta 984 990 987 1009 C1' U E 10 beta 1004 1010 1007 1027 C1' A F 1 beta 1022 1028 1025 1049 C1' A F 2 beta 1044 1050 1047 1071 C1' G F 3 beta 1066 1072 1069 1094 C1' A F 4 beta 1089 1095 1092 1116 C1' C F 5 beta 1111 1117 1114 1136 C1' U F 6 beta 1131 1137 1134 1156 C1' G F 7 beta 1151 1157 1154 1179 C1' C F 8 beta 1174 1180 1177 1199 C1' C F 9 beta 1194 1200 1197 1219 C1' U F 10 beta 1214 1220 1217 1237 C1' C G 1 beta 1232 1238 1235 1257 C1' A G 2 beta 1252 1258 1255 1279 C1' G G 3 beta 1274 1280 1277 1302 C1' U G 4 beta 1297 1303 1300 1322 C1' G G 5 beta 1317 1323 1320 1345 C1' G G 6 beta 1340 1346 1343 1368 C1' U G 7 beta 1363 1369 1366 1388 C1' C G 8 beta 1383 1389 1386 1408 C1' U G 9 beta 1403 1409 1406 1428 C1' U G 10 beta 1423 1429 1426 1446 C1' A H 1 beta 1441 1447 1444 1468 C1' A H 2 beta 1463 1469 1466 1490 C1' G H 3 beta 1485 1491 1488 1513 C1' A H 4 beta 1508 1514 1511 1535 C1' C H 5 beta 1530 1536 1533 1555 C1' U H 6 beta 1550 1556 1553 1575 C1' G H 7 beta 1570 1576 1573 1598 C1' C H 8 beta 1593 1599 1596 1618 C1' C H 9 beta 1613 1619 1616 1638 C1' U H 10 beta 1633 1639 1636 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------------- Seq No Atom Residue Deoxyribose Ribose C1' C3' H2'1 H2'2 H2' O2' H2'1 H2'2 H2' O2' --------------------------------------------------------------------------------------------------------------------- 10 C2' A C 2 OK 12 8 11 32 C2' G C 3 OK 34 30 33 55 C2' U C 4 OK 57 53 56 75 C2' G C 5 OK 77 73 76 98 C2' G C 6 OK 100 96 99 121 C2' U C 7 OK 123 119 122 141 C2' C C 8 OK 143 139 142 161 C2' U C 9 OK 163 159 162 181 C2' U C 10 OK 183 179 182 199 C2' A D 1 OK 201 197 200 221 C2' A D 2 OK 223 219 222 243 C2' G D 3 OK 245 241 244 266 C2' A D 4 OK 268 264 267 288 C2' C D 5 OK 290 286 289 308 C2' U D 6 OK 310 306 309 328 C2' G D 7 OK 330 326 329 351 C2' C D 8 OK 353 349 352 371 C2' C D 9 OK 373 369 372 391 C2' U D 10 OK 393 389 392 411 C2' G D 11 OK 413 409 412 435 C2' G A 3 OK 437 433 436 458 C2' U A 4 OK 460 456 459 478 C2' G A 5 OK 480 476 479 501 C2' G A 6 OK 503 499 502 524 C2' U A 7 OK 526 522 525 544 C2' C A 8 OK 546 542 545 564 C2' U A 9 OK 566 562 565 584 C2' U A 10 OK 586 582 585 602 C2' A B 1 OK 604 600 603 624 C2' A B 2 OK 626 622 625 646 C2' G B 3 OK 648 644 647 669 C2' A B 4 OK 671 667 670 691 C2' C B 5 OK 693 689 692 711 C2' U B 6 OK 713 709 712 731 C2' G B 7 OK 733 729 732 754 C2' C B 8 OK 756 752 755 774 C2' C B 9 OK 776 772 775 794 C2' U B 10 OK 796 792 795 816 C2' C E 1 OK 818 814 817 836 C2' A E 2 OK 838 834 837 858 C2' G E 3 OK 860 856 859 881 C2' U E 4 OK 883 879 882 901 C2' G E 5 OK 903 899 902 924 C2' G E 6 OK 926 922 925 947 C2' U E 7 OK 949 945 948 967 C2' C E 8 OK 969 965 968 987 C2' U E 9 OK 989 985 988 1007 C2' U E 10 OK 1009 1005 1008 1025 C2' A F 1 OK 1027 1023 1026 1047 C2' A F 2 OK 1049 1045 1048 1069 C2' G F 3 OK 1071 1067 1070 1092 C2' A F 4 OK 1094 1090 1093 1114 C2' C F 5 OK 1116 1112 1115 1134 C2' U F 6 OK 1136 1132 1135 1154 C2' G F 7 OK 1156 1152 1155 1177 C2' C F 8 OK 1179 1175 1178 1197 C2' C F 9 OK 1199 1195 1198 1217 C2' U F 10 OK 1219 1215 1218 1235 C2' C G 1 OK 1237 1233 1236 1255 C2' A G 2 OK 1257 1253 1256 1277 C2' G G 3 OK 1279 1275 1278 1300 C2' U G 4 OK 1302 1298 1301 1320 C2' G G 5 OK 1322 1318 1321 1343 C2' G G 6 OK 1345 1341 1344 1366 C2' U G 7 OK 1368 1364 1367 1386 C2' C G 8 OK 1388 1384 1387 1406 C2' U G 9 OK 1408 1404 1407 1426 C2' U G 10 OK 1428 1424 1427 1444 C2' A H 1 OK 1446 1442 1445 1466 C2' A H 2 OK 1468 1464 1467 1488 C2' G H 3 OK 1490 1486 1489 1511 C2' A H 4 OK 1513 1509 1512 1533 C2' C H 5 OK 1535 1531 1534 1553 C2' U H 6 OK 1555 1551 1554 1573 C2' G H 7 OK 1575 1571 1574 1596 C2' C H 8 OK 1598 1594 1597 1616 C2' C H 9 OK 1618 1614 1617 1636 C2' U H 10 OK 1638 1634 1637 --------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Seq No Atom Residue H3' O3' C4' H3' O3' C2' --------------------------------------------------------------------------------- 8 C3' A C 2 OK 6 9 10 30 C3' G C 3 OK 28 31 32 53 C3' U C 4 OK 51 54 55 73 C3' G C 5 OK 71 74 75 96 C3' G C 6 OK 94 97 98 119 C3' U C 7 OK 117 120 121 139 C3' C C 8 OK 137 140 141 159 C3' U C 9 OK 157 160 161 179 C3' U C 10 OK 177 180 181 197 C3' A D 1 OK 195 198 199 219 C3' A D 2 OK 217 220 221 241 C3' G D 3 OK 239 242 243 264 C3' A D 4 OK 262 265 266 286 C3' C D 5 OK 284 287 288 306 C3' U D 6 OK 304 307 308 326 C3' G D 7 OK 324 327 328 349 C3' C D 8 OK 347 350 351 369 C3' C D 9 OK 367 370 371 389 C3' U D 10 OK 387 390 391 409 C3' G D 11 OK 407 410 411 433 C3' G A 3 OK 431 434 435 456 C3' U A 4 OK 454 457 458 476 C3' G A 5 OK 474 477 478 499 C3' G A 6 OK 497 500 501 522 C3' U A 7 OK 520 523 524 542 C3' C A 8 OK 540 543 544 562 C3' U A 9 OK 560 563 564 582 C3' U A 10 OK 580 583 584 600 C3' A B 1 OK 598 601 602 622 C3' A B 2 OK 620 623 624 644 C3' G B 3 OK 642 645 646 667 C3' A B 4 OK 665 668 669 689 C3' C B 5 OK 687 690 691 709 C3' U B 6 OK 707 710 711 729 C3' G B 7 OK 727 730 731 752 C3' C B 8 OK 750 753 754 772 C3' C B 9 OK 770 773 774 792 C3' U B 10 OK 790 793 794 814 C3' C E 1 OK 812 815 816 834 C3' A E 2 OK 832 835 836 856 C3' G E 3 OK 854 857 858 879 C3' U E 4 OK 877 880 881 899 C3' G E 5 OK 897 900 901 922 C3' G E 6 OK 920 923 924 945 C3' U E 7 OK 943 946 947 965 C3' C E 8 OK 963 966 967 985 C3' U E 9 OK 983 986 987 1005 C3' U E 10 OK 1003 1006 1007 1023 C3' A F 1 OK 1021 1024 1025 1045 C3' A F 2 OK 1043 1046 1047 1067 C3' G F 3 OK 1065 1068 1069 1090 C3' A F 4 OK 1088 1091 1092 1112 C3' C F 5 OK 1110 1113 1114 1132 C3' U F 6 OK 1130 1133 1134 1152 C3' G F 7 OK 1150 1153 1154 1175 C3' C F 8 OK 1173 1176 1177 1195 C3' C F 9 OK 1193 1196 1197 1215 C3' U F 10 OK 1213 1216 1217 1233 C3' C G 1 OK 1231 1234 1235 1253 C3' A G 2 OK 1251 1254 1255 1275 C3' G G 3 OK 1273 1276 1277 1298 C3' U G 4 OK 1296 1299 1300 1318 C3' G G 5 OK 1316 1319 1320 1341 C3' G G 6 OK 1339 1342 1343 1364 C3' U G 7 OK 1362 1365 1366 1384 C3' C G 8 OK 1382 1385 1386 1404 C3' U G 9 OK 1402 1405 1406 1424 C3' U G 10 OK 1422 1425 1426 1442 C3' A H 1 OK 1440 1443 1444 1464 C3' A H 2 OK 1462 1465 1466 1486 C3' G H 3 OK 1484 1487 1488 1509 C3' A H 4 OK 1507 1510 1511 1531 C3' C H 5 OK 1529 1532 1533 1551 C3' U H 6 OK 1549 1552 1553 1571 C3' G H 7 OK 1569 1572 1573 1594 C3' C H 8 OK 1592 1595 1596 1614 C3' C H 9 OK 1612 1615 1616 1634 C3' U H 10 OK 1632 1635 1636 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Seq No Atom Residue H4' C5' C3' H4' C5' O4' --------------------------------------------------------------------------------- 6 C4' A C 2 OK 8 5 7 28 C4' G C 3 OK 30 27 29 51 C4' U C 4 OK 53 50 52 71 C4' G C 5 OK 73 70 72 94 C4' G C 6 OK 96 93 95 117 C4' U C 7 OK 119 116 118 137 C4' C C 8 OK 139 136 138 157 C4' U C 9 OK 159 156 158 177 C4' U C 10 OK 179 176 178 195 C4' A D 1 OK 197 194 196 217 C4' A D 2 OK 219 216 218 239 C4' G D 3 OK 241 238 240 262 C4' A D 4 OK 264 261 263 284 C4' C D 5 OK 286 283 285 304 C4' U D 6 OK 306 303 305 324 C4' G D 7 OK 326 323 325 347 C4' C D 8 OK 349 346 348 367 C4' C D 9 OK 369 366 368 387 C4' U D 10 OK 389 386 388 407 C4' G D 11 OK 409 406 408 431 C4' G A 3 OK 433 430 432 454 C4' U A 4 OK 456 453 455 474 C4' G A 5 OK 476 473 475 497 C4' G A 6 OK 499 496 498 520 C4' U A 7 OK 522 519 521 540 C4' C A 8 OK 542 539 541 560 C4' U A 9 OK 562 559 561 580 C4' U A 10 OK 582 579 581 598 C4' A B 1 OK 600 597 599 620 C4' A B 2 OK 622 619 621 642 C4' G B 3 OK 644 641 643 665 C4' A B 4 OK 667 664 666 687 C4' C B 5 OK 689 686 688 707 C4' U B 6 OK 709 706 708 727 C4' G B 7 OK 729 726 728 750 C4' C B 8 OK 752 749 751 770 C4' C B 9 OK 772 769 771 790 C4' U B 10 OK 792 789 791 812 C4' C E 1 OK 814 811 813 832 C4' A E 2 OK 834 831 833 854 C4' G E 3 OK 856 853 855 877 C4' U E 4 OK 879 876 878 897 C4' G E 5 OK 899 896 898 920 C4' G E 6 OK 922 919 921 943 C4' U E 7 OK 945 942 944 963 C4' C E 8 OK 965 962 964 983 C4' U E 9 OK 985 982 984 1003 C4' U E 10 OK 1005 1002 1004 1021 C4' A F 1 OK 1023 1020 1022 1043 C4' A F 2 OK 1045 1042 1044 1065 C4' G F 3 OK 1067 1064 1066 1088 C4' A F 4 OK 1090 1087 1089 1110 C4' C F 5 OK 1112 1109 1111 1130 C4' U F 6 OK 1132 1129 1131 1150 C4' G F 7 OK 1152 1149 1151 1173 C4' C F 8 OK 1175 1172 1174 1193 C4' C F 9 OK 1195 1192 1194 1213 C4' U F 10 OK 1215 1212 1214 1231 C4' C G 1 OK 1233 1230 1232 1251 C4' A G 2 OK 1253 1250 1252 1273 C4' G G 3 OK 1275 1272 1274 1296 C4' U G 4 OK 1298 1295 1297 1316 C4' G G 5 OK 1318 1315 1317 1339 C4' G G 6 OK 1341 1338 1340 1362 C4' U G 7 OK 1364 1361 1363 1382 C4' C G 8 OK 1384 1381 1383 1402 C4' U G 9 OK 1404 1401 1403 1422 C4' U G 10 OK 1424 1421 1423 1440 C4' A H 1 OK 1442 1439 1441 1462 C4' A H 2 OK 1464 1461 1463 1484 C4' G H 3 OK 1486 1483 1485 1507 C4' A H 4 OK 1509 1506 1508 1529 C4' C H 5 OK 1531 1528 1530 1549 C4' U H 6 OK 1551 1548 1550 1569 C4' G H 7 OK 1571 1568 1570 1592 C4' C H 8 OK 1594 1591 1593 1612 C4' C H 9 OK 1614 1611 1613 1632 C4' U H 10 OK 1634 1631 1633 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Seq No Atom Residue H5'1 H5'2 O5' H5'1 H5'2 C4' --------------------------------------------------------------------------------- 5 C5' A C 2 4 6 27 C5' G C 3 26 28 50 C5' U C 4 49 51 70 C5' G C 5 69 71 93 C5' G C 6 92 94 116 C5' U C 7 115 117 136 C5' C C 8 135 137 156 C5' U C 9 155 157 176 C5' U C 10 175 177 194 C5' A D 1 193 195 216 C5' A D 2 215 217 238 C5' G D 3 237 239 261 C5' A D 4 260 262 283 C5' C D 5 282 284 303 C5' U D 6 302 304 323 C5' G D 7 322 324 346 C5' C D 8 345 347 366 C5' C D 9 365 367 386 C5' U D 10 385 387 406 C5' G D 11 405 407 430 C5' G A 3 429 431 453 C5' U A 4 452 454 473 C5' G A 5 472 474 496 C5' G A 6 495 497 519 C5' U A 7 518 520 539 C5' C A 8 538 540 559 C5' U A 9 558 560 579 C5' U A 10 578 580 597 C5' A B 1 596 598 619 C5' A B 2 618 620 641 C5' G B 3 640 642 664 C5' A B 4 663 665 686 C5' C B 5 685 687 706 C5' U B 6 705 707 726 C5' G B 7 725 727 749 C5' C B 8 748 750 769 C5' C B 9 768 770 789 C5' U B 10 788 790 811 C5' C E 1 810 812 831 C5' A E 2 830 832 853 C5' G E 3 852 854 876 C5' U E 4 875 877 896 C5' G E 5 895 897 919 C5' G E 6 918 920 942 C5' U E 7 941 943 962 C5' C E 8 961 963 982 C5' U E 9 981 983 1002 C5' U E 10 1001 1003 1020 C5' A F 1 1019 1021 1042 C5' A F 2 1041 1043 1064 C5' G F 3 1063 1065 1087 C5' A F 4 1086 1088 1109 C5' C F 5 1108 1110 1129 C5' U F 6 1128 1130 1149 C5' G F 7 1148 1150 1172 C5' C F 8 1171 1173 1192 C5' C F 9 1191 1193 1212 C5' U F 10 1211 1213 1230 C5' C G 1 1229 1231 1250 C5' A G 2 1249 1251 1272 C5' G G 3 1271 1273 1295 C5' U G 4 1294 1296 1315 C5' G G 5 1314 1316 1338 C5' G G 6 1337 1339 1361 C5' U G 7 1360 1362 1381 C5' C G 8 1380 1382 1401 C5' U G 9 1400 1402 1421 C5' U G 10 1420 1422 1439 C5' A H 1 1438 1440 1461 C5' A H 2 1460 1462 1483 C5' G H 3 1482 1484 1506 C5' A H 4 1505 1507 1528 C5' C H 5 1527 1529 1548 C5' U H 6 1547 1549 1568 C5' G H 7 1567 1569 1591 C5' C H 8 1590 1592 1611 C5' C H 9 1610 1612 1631 C5' U H 10 1630 1632 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Seq No Atom Residue O1P O2P O3' O1P O2P O5' --------------------------------------------------------------------------------- 1 P A C 2 distorted distorted 2 3 4 23 P G C 3 distorted distorted 9 24 25 26 46 P U C 4 distorted distorted 31 47 48 49 66 P G C 5 distorted distorted 54 67 68 69 89 P G C 6 distorted distorted 74 90 91 92 112 P U C 7 distorted distorted 97 113 114 115 132 P C C 8 distorted distorted 120 133 134 135 152 P U C 9 distorted distorted 140 153 154 155 172 P U C 10 distorted distorted 160 173 174 175 212 P A D 2 distorted distorted 198 213 214 215 234 P G D 3 distorted distorted 220 235 236 237 257 P A D 4 distorted distorted 242 258 259 260 279 P C D 5 distorted distorted 265 280 281 282 299 P U D 6 distorted distorted 287 300 301 302 319 P G D 7 distorted distorted 307 320 321 322 342 P C D 8 distorted distorted 327 343 344 345 362 P C D 9 distorted distorted 350 363 364 365 382 P U D 10 distorted distorted 370 383 384 385 402 P G D 11 distorted distorted 390 403 404 405 426 P G A 3 distorted distorted 427 428 429 449 P U A 4 distorted distorted 434 450 451 452 469 P G A 5 distorted distorted 457 470 471 472 492 P G A 6 distorted distorted 477 493 494 495 515 P U A 7 distorted distorted 500 516 517 518 535 P C A 8 distorted distorted 523 536 537 538 555 P U A 9 distorted distorted 543 556 557 558 575 P U A 10 distorted distorted 563 576 577 578 615 P A B 2 distorted distorted 601 616 617 618 637 P G B 3 distorted distorted 623 638 639 640 660 P A B 4 distorted distorted 645 661 662 663 682 P C B 5 distorted distorted 668 683 684 685 702 P U B 6 distorted distorted 690 703 704 705 722 P G B 7 distorted distorted 710 723 724 725 745 P C B 8 distorted distorted 730 746 747 748 765 P C B 9 distorted distorted 753 766 767 768 785 P U B 10 distorted distorted 773 786 787 788 805 P G B 11 distorted distorted 793 806 807 808 827 P A E 2 distorted distorted 815 828 829 830 849 P G E 3 distorted distorted 835 850 851 852 872 P U E 4 distorted distorted 857 873 874 875 892 P G E 5 distorted distorted 880 893 894 895 915 P G E 6 distorted distorted 900 916 917 918 938 P U E 7 distorted distorted 923 939 940 941 958 P C E 8 distorted distorted 946 959 960 961 978 P U E 9 distorted distorted 966 979 980 981 998 P U E 10 distorted distorted 986 999 1000 1001 1038 P A F 2 distorted distorted 1024 1039 1040 1041 1060 P G F 3 distorted distorted 1046 1061 1062 1063 1083 P A F 4 distorted distorted 1068 1084 1085 1086 1105 P C F 5 distorted distorted 1091 1106 1107 1108 1125 P U F 6 distorted distorted 1113 1126 1127 1128 1145 P G F 7 distorted distorted 1133 1146 1147 1148 1168 P C F 8 distorted distorted 1153 1169 1170 1171 1188 P C F 9 distorted distorted 1176 1189 1190 1191 1208 P U F 10 distorted distorted 1196 1209 1210 1211 1246 P A G 2 distorted distorted 1234 1247 1248 1249 1268 P G G 3 distorted distorted 1254 1269 1270 1271 1291 P U G 4 distorted distorted 1276 1292 1293 1294 1311 P G G 5 distorted distorted 1299 1312 1313 1314 1334 P G G 6 distorted distorted 1319 1335 1336 1337 1357 P U G 7 distorted distorted 1342 1358 1359 1360 1377 P C G 8 distorted distorted 1365 1378 1379 1380 1397 P U G 9 distorted distorted 1385 1398 1399 1400 1417 P U G 10 distorted distorted 1405 1418 1419 1420 1457 P A H 2 distorted distorted 1443 1458 1459 1460 1479 P G H 3 distorted distorted 1465 1480 1481 1482 1502 P A H 4 distorted distorted 1487 1503 1504 1505 1524 P C H 5 distorted distorted 1510 1525 1526 1527 1544 P U H 6 distorted distorted 1532 1545 1546 1547 1564 P G H 7 distorted distorted 1552 1565 1566 1567 1587 P C H 8 distorted distorted 1572 1588 1589 1590 1607 P C H 9 distorted distorted 1595 1608 1609 1610 1627 P U H 10 distorted distorted 1615 1628 1629 1630 ---------------------------------------------------------------------------------