>>7V3X:HELIX   19 AC1 GLY B   51  ASP B   68  1                                  18    
GKTLFSIQFLYNGIIEFD
Search OCA for entries with sequence similar to this one (with E=10)

HELIX 19 AC1 GLY B 51 ASP B 68 1 18 ATOM 3745 N GLY B 51 56.938 13.872 54.835 1.00 32.24 N ANISOU 3745 N GLY B 51 4795 3384 4071 267 1086 212 N ATOM 3746 CA GLY B 51 56.182 14.006 53.574 1.00 32.32 C ANISOU 3746 CA GLY B 51 4835 3413 4029 292 1114 211 C ATOM 3747 C GLY B 51 55.565 15.385 53.412 1.00 32.31 C ANISOU 3747 C GLY B 51 4853 3415 4006 302 1114 217 C ATOM 3748 O GLY B 51 54.607 15.504 52.625 1.00 32.34 O ANISOU 3748 O GLY B 51 4885 3439 3963 319 1118 213 O ATOM 3749 N LYS B 52 56.090 16.391 54.119 1.00 32.36 N ANISOU 3749 N LYS B 52 4846 3400 4048 290 1107 228 N ATOM 3750 CA LYS B 52 55.605 17.796 54.064 1.00 32.54 C ANISOU 3750 CA LYS B 52 4883 3420 4058 298 1108 235 C ATOM 3751 C LYS B 52 55.725 18.319 52.632 1.00 32.89 C ANISOU 3751 C LYS B 52 4950 3461 4086 320 1149 252 C ATOM 3752 O LYS B 52 54.687 18.705 52.057 1.00 33.05 O ANISOU 3752 O LYS B 52 4996 3497 4061 336 1145 249 O ATOM 3753 CB LYS B 52 56.414 18.701 54.995 1.00 32.56 C ANISOU 3753 CB LYS B 52 4868 3393 4108 279 1095 246 C ATOM 3754 CG LYS B 52 56.123 18.533 56.477 1.00 32.29 C ANISOU 3754 CG LYS B 52 4830 3359 4077 256 1051 230 C ATOM 3755 CD LYS B 52 56.964 19.438 57.347 1.00 32.40 C ANISOU 3755 CD LYS B 52 4835 3338 4135 236 1034 240 C ATOM 3756 CE LYS B 52 58.079 18.724 58.077 1.00 32.50 C ANISOU 3756 CE LYS B 52 4823 3326 4198 211 1009 246 C ATOM 3757 NZ LYS B 52 59.170 18.302 57.171 1.00 32.74 N ANISOU 3757 NZ LYS B 52 4824 3339 4273 218 1042 265 N ATOM 3758 N THR B 53 56.950 18.343 52.097 1.00 33.18 N ANISOU 3758 N THR B 53 4975 3471 4160 319 1186 271 N ATOM 3759 CA THR B 53 57.259 18.830 50.726 1.00 33.66 C ANISOU 3759 CA THR B 53 5061 3520 4207 337 1236 289 C ATOM 3760 C THR B 53 56.389 18.069 49.725 1.00 33.76 C ANISOU 3760 C THR B 53 5113 3557 4157 354 1242 279 C ATOM 3761 O THR B 53 55.685 18.718 48.924 1.00 33.86 O ANISOU 3761 O THR B 53 5163 3575 4125 370 1245 285 O ATOM 3762 CB THR B 53 58.736 18.643 50.359 1.00 33.97 C ANISOU 3762 CB THR B 53 5077 3524 4303 332 1283 307 C ATOM 3763 OG1 THR B 53 59.544 19.220 51.385 1.00 34.17 O ANISOU 3763 OG1 THR B 53 5062 3525 4395 312 1265 317 O ATOM 3764 CG2 THR B 53 59.077 19.265 49.023 1.00 34.29 C ANISOU 3764 CG2 THR B 53 5149 3548 4329 348 1341 328 C ATOM 3765 N LEU B 54 56.442 16.738 49.786 1.00 33.78 N ANISOU 3765 N LEU B 54 5108 3569 4155 351 1238 263 N ATOM 3766 CA LEU B 54 55.703 15.837 48.868 1.00 33.94 C ANISOU 3766 CA LEU B 54 5166 3609 4118 365 1241 251 C ATOM 3767 C LEU B 54 54.233 16.268 48.831 1.00 33.70 C ANISOU 3767 C LEU B 54 5160 3605 4039 374 1199 243 C ATOM 3768 O LEU B 54 53.689 16.403 47.719 1.00 33.99 O ANISOU 3768 O LEU B 54 5242 3644 4027 390 1205 248 O ATOM 3769 CB LEU B 54 55.862 14.392 49.348 1.00 33.86 C ANISOU 3769 CB LEU B 54 5135 3608 4121 355 1228 233 C ATOM 3770 CG LEU B 54 55.162 13.325 48.509 1.00 34.07 C ANISOU 3770 CG LEU B 54 5198 3653 4094 366 1226 218 C ATOM 3771 CD1 LEU B 54 55.274 13.609 47.022 1.00 34.61 C ANISOU 3771 CD1 LEU B 54 5321 3708 4121 383 1270 230 C ATOM 3772 CD2 LEU B 54 55.727 11.954 48.834 1.00 34.13 C ANISOU 3772 CD2 LEU B 54 5183 3658 4128 357 1231 205 C ATOM 3773 N PHE B 55 53.636 16.517 50.000 1.00 33.36 N ANISOU 3773 N PHE B 55 5090 3574 4010 364 1158 232 N ATOM 3774 CA PHE B 55 52.215 16.927 50.141 1.00 33.31 C ANISOU 3774 CA PHE B 55 5094 3588 3972 371 1119 223 C ATOM 3775 C PHE B 55 51.977 18.222 49.357 1.00 33.86 C ANISOU 3775 C PHE B 55 5192 3647 4027 387 1129 242 C ATOM 3776 O PHE B 55 50.939 18.317 48.679 1.00 34.11 O ANISOU 3776 O PHE B 55 5250 3688 4019 401 1108 241 O ATOM 3777 CB PHE B 55 51.826 17.101 51.611 1.00 32.85 C ANISOU 3777 CB PHE B 55 5004 3537 3940 356 1089 210 C ATOM 3778 CG PHE B 55 50.351 17.323 51.829 1.00 32.67 C ANISOU 3778 CG PHE B 55 4984 3532 3895 364 1057 198 C ATOM 3779 CD1 PHE B 55 49.783 18.519 51.776 1.00 32.78 C ANISOU 3779 CD1 PHE B 55 5004 3539 3909 374 1051 205 C ATOM 3780 CD2 PHE B 55 49.468 16.358 52.075 1.00 32.53 C ANISOU 3780 CD2 PHE B 55 4961 3534 3863 362 1032 179 C ATOM 3781 CE1 PHE B 55 48.427 18.732 51.968 1.00 32.75 C ANISOU 3781 CE1 PHE B 55 4997 3547 3896 382 1024 195 C ATOM 3782 CE2 PHE B 55 48.111 16.580 52.262 1.00 32.49 C ANISOU 3782 CE2 PHE B 55 4953 3542 3850 369 1006 170 C ATOM 3783 CZ PHE B 55 47.574 17.768 52.211 1.00 32.65 C ANISOU 3783 CZ PHE B 55 4975 3553 3875 380 1002 178 C ATOM 3784 N SER B 56 52.904 19.183 49.449 1.00 34.36 N ANISOU 3784 N SER B 56 5246 3685 4120 383 1157 260 N ATOM 3785 CA SER B 56 52.780 20.528 48.826 1.00 35.01 C ANISOU 3785 CA SER B 56 5353 3754 4195 395 1167 280 C ATOM 3786 C SER B 56 53.025 20.435 47.314 1.00 35.88 C ANISOU 3786 C SER B 56 5512 3854 4266 409 1200 296 C ATOM 3787 O SER B 56 52.238 21.041 46.563 1.00 36.33 O ANISOU 3787 O SER B 56 5605 3911 4287 424 1185 305 O ATOM 3788 CB SER B 56 53.689 21.536 49.482 1.00 34.99 C ANISOU 3788 CB SER B 56 5325 3727 4241 385 1183 293 C ATOM 3789 OG SER B 56 55.052 21.183 49.319 1.00 35.18 O ANISOU 3789 OG SER B 56 5336 3731 4298 375 1223 304 O ATOM 3790 N ILE B 57 54.062 19.706 46.882 1.00 36.47 N ANISOU 3790 N ILE B 57 5590 3917 4349 405 1242 299 N ATOM 3791 CA ILE B 57 54.344 19.447 45.434 1.00 37.05 C ANISOU 3791 CA ILE B 57 5719 3977 4380 417 1283 311 C ATOM 3792 C ILE B 57 53.078 18.870 44.795 1.00 37.28 C ANISOU 3792 C ILE B 57 5790 4027 4345 428 1243 299 C ATOM 3793 O ILE B 57 52.581 19.463 43.817 1.00 37.47 O ANISOU 3793 O ILE B 57 5867 4043 4325 440 1238 313 O ATOM 3794 CB ILE B 57 55.529 18.484 45.223 1.00 37.21 C ANISOU 3794 CB ILE B 57 5730 3982 4424 411 1335 309 C ATOM 3795 CG1 ILE B 57 56.851 19.039 45.763 1.00 37.24 C ANISOU 3795 CG1 ILE B 57 5689 3959 4501 399 1373 325 C ATOM 3796 CG2 ILE B 57 55.631 18.099 43.751 1.00 37.65 C ANISOU 3796 CG2 ILE B 57 5855 4026 4424 423 1377 316 C ATOM 3797 CD1 ILE B 57 57.392 20.221 44.995 1.00 37.67 C ANISOU 3797 CD1 ILE B 57 5769 3984 4557 405 1418 353 C ATOM 3798 N GLN B 58 52.601 17.739 45.325 1.00 37.35 N ANISOU 3798 N GLN B 58 5779 4059 4353 423 1212 275 N ATOM 3799 CA GLN B 58 51.369 17.049 44.859 1.00 37.82 C ANISOU 3799 CA GLN B 58 5868 4136 4362 430 1166 261 C ATOM 3800 C GLN B 58 50.221 18.057 44.794 1.00 38.46 C ANISOU 3800 C GLN B 58 5958 4222 4430 440 1121 269 C ATOM 3801 O GLN B 58 49.573 18.146 43.732 1.00 39.10 O ANISOU 3801 O GLN B 58 6094 4298 4463 451 1101 277 O ATOM 3802 CB GLN B 58 50.971 15.904 45.791 1.00 37.30 C ANISOU 3802 CB GLN B 58 5762 4095 4315 420 1136 236 C ATOM 3803 CG GLN B 58 51.526 14.554 45.367 1.00 37.39 C ANISOU 3803 CG GLN B 58 5789 4105 4312 416 1160 224 C ATOM 3804 CD GLN B 58 50.915 13.425 46.159 1.00 37.10 C ANISOU 3804 CD GLN B 58 5720 4091 4284 407 1121 200 C ATOM 3805 OE1 GLN B 58 51.464 12.980 47.166 1.00 36.74 O ANISOU 3805 OE1 GLN B 58 5629 4050 4281 394 1127 192 O ATOM 3806 NE2 GLN B 58 49.759 12.960 45.715 1.00 37.12 N ANISOU 3806 NE2 GLN B 58 5748 4108 4248 413 1078 191 N ATOM 3807 N PHE B 59 49.982 18.776 45.893 1.00 38.78 N ANISOU 3807 N PHE B 59 5951 4269 4514 435 1103 267 N ATOM 3808 CA PHE B 59 48.897 19.782 46.003 1.00 39.58 C ANISOU 3808 CA PHE B 59 6050 4371 4617 445 1064 273 C ATOM 3809 C PHE B 59 48.877 20.622 44.722 1.00 41.61 C ANISOU 3809 C PHE B 59 6364 4607 4837 458 1070 298 C ATOM 3810 O PHE B 59 47.809 20.716 44.079 1.00 42.01 O ANISOU 3810 O PHE B 59 6443 4658 4858 469 1026 302 O ATOM 3811 CB PHE B 59 49.070 20.662 47.243 1.00 38.60 C ANISOU 3811 CB PHE B 59 5878 4244 4544 437 1067 271 C ATOM 3812 CG PHE B 59 48.052 21.769 47.333 1.00 38.11 C ANISOU 3812 CG PHE B 59 5811 4176 4489 448 1036 278 C ATOM 3813 CD1 PHE B 59 46.697 21.480 47.296 1.00 37.84 C ANISOU 3813 CD1 PHE B 59 5773 4155 4449 457 990 268 C ATOM 3814 CD2 PHE B 59 48.443 23.096 47.428 1.00 38.03 C ANISOU 3814 CD2 PHE B 59 5801 4146 4500 451 1052 295 C ATOM 3815 CE1 PHE B 59 45.753 22.492 47.366 1.00 37.93 C ANISOU 3815 CE1 PHE B 59 5776 4157 4477 469 962 275 C ATOM 3816 CE2 PHE B 59 47.498 24.108 47.502 1.00 38.05 C ANISOU 3816 CE2 PHE B 59 5799 4142 4514 463 1025 301 C ATOM 3817 CZ PHE B 59 46.155 23.804 47.473 1.00 38.09 C ANISOU 3817 CZ PHE B 59 5796 4158 4515 473 980 291 C ATOM 3818 N LEU B 60 50.032 21.188 44.355 1.00 43.64 N ANISOU 3818 N LEU B 60 6637 4843 5099 457 1122 316 N ATOM 3819 CA LEU B 60 50.201 22.007 43.125 1.00 45.44 C ANISOU 3819 CA LEU B 60 6927 5047 5290 467 1140 343 C ATOM 3820 C LEU B 60 50.018 21.104 41.899 1.00 47.40 C ANISOU 3820 C LEU B 60 7243 5293 5474 472 1140 342 C ATOM 3821 O LEU B 60 49.110 21.394 41.090 1.00 48.05 O ANISOU 3821 O LEU B 60 7374 5369 5514 482 1098 352 O ATOM 3822 CB LEU B 60 51.581 22.674 43.109 1.00 45.37 C ANISOU 3822 CB LEU B 60 6913 5015 5309 461 1205 361 C ATOM 3823 CG LEU B 60 51.912 23.619 44.267 1.00 45.04 C ANISOU 3823 CG LEU B 60 6813 4969 5329 454 1206 363 C ATOM 3824 CD1 LEU B 60 53.298 24.212 44.076 1.00 45.18 C ANISOU 3824 CD1 LEU B 60 6830 4958 5375 447 1268 384 C ATOM 3825 CD2 LEU B 60 50.884 24.733 44.407 1.00 45.21 C ANISOU 3825 CD2 LEU B 60 6835 4990 5353 464 1162 371 C ATOM 3826 N TYR B 61 50.828 20.045 41.775 1.00 49.20 N ANISOU 3826 N TYR B 61 7475 5521 5696 465 1181 331 N ATOM 3827 CA TYR B 61 50.876 19.166 40.575 1.00 51.34 C ANISOU 3827 CA TYR B 61 7818 5783 5903 468 1196 329 C ATOM 3828 C TYR B 61 49.461 18.690 40.225 1.00 52.45 C ANISOU 3828 C TYR B 61 7987 5937 6002 474 1119 319 C ATOM 3829 O TYR B 61 48.991 18.975 39.104 1.00 53.19 O ANISOU 3829 O TYR B 61 8155 6014 6038 481 1098 334 O ATOM 3830 CB TYR B 61 51.802 17.961 40.771 1.00 51.90 C ANISOU 3830 CB TYR B 61 7872 5856 5988 460 1244 313 C ATOM 3831 CG TYR B 61 51.806 17.014 39.596 1.00 52.81 C ANISOU 3831 CG TYR B 61 8066 5960 6038 463 1260 307 C ATOM 3832 CD1 TYR B 61 52.566 17.281 38.468 1.00 53.54 C ANISOU 3832 CD1 TYR B 61 8230 6021 6092 467 1324 324 C ATOM 3833 CD2 TYR B 61 51.022 15.870 39.591 1.00 53.01 C ANISOU 3833 CD2 TYR B 61 8099 6004 6038 462 1213 284 C ATOM 3834 CE1 TYR B 61 52.563 16.429 37.374 1.00 54.13 C ANISOU 3834 CE1 TYR B 61 8386 6081 6098 469 1342 317 C ATOM 3835 CE2 TYR B 61 51.008 15.007 38.506 1.00 53.47 C ANISOU 3835 CE2 TYR B 61 8234 6049 6032 464 1225 277 C ATOM 3836 CZ TYR B 61 51.782 15.286 37.394 1.00 54.06 C ANISOU 3836 CZ TYR B 61 8385 6090 6063 468 1290 293 C ATOM 3837 OH TYR B 61 51.776 14.442 36.321 1.00 54.62 O ANISOU 3837 OH TYR B 61 8542 6144 6065 469 1306 285 O ATOM 3838 N ASN B 62 48.811 17.990 41.159 1.00 53.02 N ANISOU 3838 N ASN B 62 8002 6036 6105 469 1078 296 N ATOM 3839 CA ASN B 62 47.446 17.427 40.985 1.00 53.72 C ANISOU 3839 CA ASN B 62 8101 6138 6171 473 1003 285 C ATOM 3840 C ASN B 62 46.472 18.559 40.634 1.00 54.21 C ANISOU 3840 C ASN B 62 8179 6190 6229 483 951 304 C ATOM 3841 O ASN B 62 45.534 18.303 39.855 1.00 54.19 O ANISOU 3841 O ASN B 62 8220 6180 6186 488 895 307 O ATOM 3842 CB ASN B 62 47.008 16.639 42.219 1.00 53.83 C ANISOU 3842 CB ASN B 62 8040 6179 6231 464 978 260 C ATOM 3843 CG ASN B 62 47.856 15.409 42.460 1.00 54.42 C ANISOU 3843 CG ASN B 62 8105 6262 6308 454 1018 242 C ATOM 3844 OD1 ASN B 62 48.310 14.763 41.519 1.00 56.01 O ANISOU 3844 OD1 ASN B 62 8364 6451 6465 455 1043 241 O ATOM 3845 ND2 ASN B 62 48.068 15.069 43.721 1.00 54.65 N ANISOU 3845 ND2 ASN B 62 8066 6308 6388 444 1024 227 N ATOM 3846 N GLY B 63 46.694 19.759 41.182 1.00 54.50 N ANISOU 3846 N GLY B 63 8180 6221 6304 486 967 317 N ATOM 3847 CA GLY B 63 45.929 20.970 40.840 1.00 55.39 C ANISOU 3847 CA GLY B 63 8307 6318 6418 497 927 338 C ATOM 3848 C GLY B 63 46.088 21.333 39.375 1.00 56.77 C ANISOU 3848 C GLY B 63 8577 6465 6527 503 929 363 C ATOM 3849 O GLY B 63 45.050 21.532 38.711 1.00 57.69 O ANISOU 3849 O GLY B 63 8730 6571 6619 511 863 373 O ATOM 3850 N ILE B 64 47.335 21.400 38.888 1.00 57.47 N ANISOU 3850 N ILE B 64 8705 6540 6591 499 1001 373 N ATOM 3851 CA ILE B 64 47.676 21.808 37.491 1.00 58.52 C ANISOU 3851 CA ILE B 64 8937 6641 6656 503 1021 398 C ATOM 3852 C ILE B 64 47.081 20.784 36.518 1.00 59.81 C ANISOU 3852 C ILE B 64 9175 6798 6750 502 981 390 C ATOM 3853 O ILE B 64 46.301 21.192 35.638 1.00 60.72 O ANISOU 3853 O ILE B 64 9355 6894 6821 508 925 408 O ATOM 3854 CB ILE B 64 49.200 21.957 37.297 1.00 57.69 C ANISOU 3854 CB ILE B 64 8848 6519 6550 497 1120 407 C ATOM 3855 N ILE B 65 47.395 19.500 36.709 1.00 60.74 N ANISOU 3855 N ILE B 65 9282 6931 6862 495 1002 365 N ATOM 3856 CA ILE B 65 47.173 18.416 35.705 1.00 62.26 C ANISOU 3856 CA ILE B 65 9559 7114 6983 493 986 355 C ATOM 3857 C ILE B 65 45.676 18.115 35.550 1.00 63.90 C ANISOU 3857 C ILE B 65 9772 7327 7178 495 880 351 C ATOM 3858 O ILE B 65 45.298 17.633 34.465 1.00 64.99 O ANISOU 3858 O ILE B 65 10002 7445 7245 493 846 353 O ATOM 3859 CB ILE B 65 47.955 17.143 36.085 1.00 61.53 C ANISOU 3859 CB ILE B 65 9441 7035 6900 485 1041 329 C ATOM 3860 N GLU B 66 44.843 18.395 36.560 1.00 65.13 N ANISOU 3860 N GLU B 66 9839 7504 7401 498 829 345 N ATOM 3861 CA GLU B 66 43.426 17.932 36.595 1.00 66.48 C ANISOU 3861 CA GLU B 66 9994 7681 7582 499 732 337 C ATOM 3862 C GLU B 66 42.459 19.077 36.247 1.00 67.47 C ANISOU 3862 C GLU B 66 10130 7787 7718 509 662 363 C ATOM 3863 O GLU B 66 41.575 18.851 35.396 1.00 68.57 O ANISOU 3863 O GLU B 66 10325 7906 7819 509 586 371 O ATOM 3864 CB GLU B 66 43.107 17.318 37.961 1.00 66.55 C ANISOU 3864 CB GLU B 66 9898 7724 7663 495 727 311 C ATOM 3865 CG GLU B 66 41.742 16.647 38.032 1.00 67.08 C ANISOU 3865 CG GLU B 66 9943 7797 7747 494 639 300 C ATOM 3866 CD GLU B 66 41.667 15.214 37.536 1.00 67.47 C ANISOU 3866 CD GLU B 66 10035 7849 7752 485 622 281 C ATOM 3867 OE1 GLU B 66 40.663 14.872 36.875 1.00 68.29 O ANISOU 3867 OE1 GLU B 66 10175 7938 7834 485 542 284 O ATOM 3868 OE2 GLU B 66 42.590 14.431 37.842 1.00 67.00 O ANISOU 3868 OE2 GLU B 66 9969 7803 7685 478 685 263 O ATOM 3869 N PHE B 67 42.588 20.240 36.899 1.00 67.62 N ANISOU 3869 N PHE B 67 10094 7807 7789 516 683 375 N ATOM 3870 CA PHE B 67 41.629 21.377 36.801 1.00 68.28 C ANISOU 3870 CA PHE B 67 10165 7873 7903 527 619 397 C ATOM 3871 C PHE B 67 42.253 22.541 36.018 1.00 68.02 C ANISOU 3871 C PHE B 67 10200 7812 7833 531 648 429 C ATOM 3872 O PHE B 67 41.578 23.582 35.886 1.00 68.35 O ANISOU 3872 O PHE B 67 10237 7835 7899 541 600 450 O ATOM 3873 CB PHE B 67 41.192 21.856 38.192 1.00 68.93 C ANISOU 3873 CB PHE B 67 10135 7975 8078 531 619 386 C ATOM 3874 CG PHE B 67 40.507 20.815 39.046 1.00 69.59 C ANISOU 3874 CG PHE B 67 10150 8085 8206 526 594 358 C ATOM 3875 CD1 PHE B 67 39.349 21.031 39.764 1.00 70.10 C ANISOU 3875 CD1 PHE B 67 10141 8152 8341 532 544 353 C ATOM 3876 CD2 PHE B 67 41.047 19.572 39.156 1.00 69.91 C ANISOU 3876 CD2 PHE B 67 10197 8144 8219 515 625 335 C ATOM 3877 CE1 PHE B 67 38.765 20.038 40.542 1.00 70.20 C ANISOU 3877 CE1 PHE B 67 10093 8186 8393 526 529 327 C ATOM 3878 CE2 PHE B 67 40.460 18.587 39.929 1.00 69.99 C ANISOU 3878 CE2 PHE B 67 10148 8177 8268 509 604 310 C ATOM 3879 CZ PHE B 67 39.321 18.811 40.627 1.00 70.11 C ANISOU 3879 CZ PHE B 67 10093 8194 8349 513 557 306 C ATOM 3880 N ASP B 68 43.486 22.380 35.520 1.00 67.07 N ATOM 3881 CA ASP B 68 44.266 23.458 34.850 1.00 66.30 C ATOM 3882 C ASP B 68 44.361 24.658 35.800 1.00 64.24 C ATOM 3883 O ASP B 68 44.315 25.806 35.314 1.00 64.81 O ATOM 3884 CB ASP B 68 43.644 23.839 33.501 1.00 67.61 C ATOM 3885 CG ASP B 68 44.617 24.488 32.527 1.00 68.26 C ATOM 3886 OD1 ASP B 68 44.963 23.835 31.522 1.00 68.75 O ATOM 3887 OD2 ASP B 68 45.016 25.643 32.773 1.00 68.49 O