HEADER SPLICING 31-DEC-69 7VPX TITLE The cryo-EM structure of the human pre-A complex COMPND MOL_ID: 2; COMPND 2 MOLECULE: Splicing factor 1; COMPND 3 CHAIN: D; EXPDTA ELECTRON MICROSCOPY REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 ASN D 120 REMARK 465 PRO D 121 REMARK 465 ASP D 122 REMARK 465 PHE D 123 REMARK 465 LYS D 124 REMARK 465 PRO D 125 REMARK 465 PRO D 126 REMARK 465 ALA D 127 REMARK 465 ASP D 128 REMARK 465 TYR D 129 REMARK 465 LYS D 130 REMARK 465 PRO D 131 REMARK 465 PRO D 132 DBREF 7VPX D 1 639 UNP Q15637 SF01_HUMAN 1 639 SEQRES 1 D 23 ARG GLU GLN GLU ARG ALA TYR ILE VAL GLN LEU GLN ILE SEQRES 2 D 23 GLU ASP LEU THR ARG LYS LEU ARG THR GLY SEQRES 1 D 37 THR ARG GLU PHE ARG THR ARG LYS LYS LEU GLU GLU GLU SEQRES 2 D 37 ARG HIS ASN LEU ILE THR GLU MET VAL ALA LEU ASN PRO SEQRES 3 D 37 ASP PHE LYS PRO PRO ALA ASP TYR LYS PRO PRO ATOM 1 N ARG D 46 241.304 304.769 220.562 1.00 90.13 ATOM 2 CA ARG D 46 240.859 305.909 221.379 1.00 90.13 ATOM 3 C ARG D 46 240.565 305.495 222.824 1.00 90.13 ATOM 4 O ARG D 46 240.819 306.262 223.748 1.00 90.13 ATOM 5 CB ARG D 46 239.636 306.536 220.707 1.00 90.13 ATOM 6 N GLU D 47 240.052 304.286 223.023 1.00 89.33 ATOM 7 CA GLU D 47 239.777 303.701 224.338 1.00 89.33 ATOM 8 C GLU D 47 241.081 303.387 225.075 1.00 89.33 ATOM 9 O GLU D 47 241.202 303.684 226.261 1.00 89.33 ATOM 10 CB GLU D 47 238.939 302.412 224.214 1.00 89.33 ATOM 11 N GLN D 48 242.083 302.855 224.370 1.00 88.94 ATOM 12 CA GLN D 48 243.406 302.576 224.930 1.00 88.94 ATOM 13 C GLN D 48 244.188 303.853 225.255 1.00 88.94 ATOM 14 O GLN D 48 244.849 303.924 226.288 1.00 88.94 ATOM 15 CB GLN D 48 244.201 301.734 223.934 1.00 88.94 ATOM 16 N GLU D 49 244.091 304.883 224.412 1.00 90.96 ATOM 17 CA GLU D 49 244.641 306.213 224.675 1.00 90.96 ATOM 18 C GLU D 49 244.019 306.810 225.942 1.00 90.96 ATOM 19 O GLU D 49 244.728 307.278 226.836 1.00 90.96 ATOM 20 CB GLU D 49 244.372 307.114 223.458 1.00 90.96 ATOM 21 N ARG D 50 242.685 306.747 226.051 1.00 92.29 ATOM 22 CA ARG D 50 241.962 307.185 227.248 1.00 92.29 ATOM 23 C ARG D 50 242.385 306.397 228.477 1.00 92.29 ATOM 24 O ARG D 50 242.713 307.021 229.479 1.00 92.29 ATOM 25 CB ARG D 50 240.446 307.074 227.029 1.00 92.29 ATOM 26 N ALA D 51 242.456 305.070 228.386 1.00 91.95 ATOM 27 CA ALA D 51 242.946 304.228 229.468 1.00 91.95 ATOM 28 C ALA D 51 244.360 304.660 229.895 1.00 91.95 ATOM 29 O ALA D 51 244.588 304.924 231.069 1.00 91.95 ATOM 30 CB ALA D 51 242.880 302.760 229.027 1.00 91.95 ATOM 31 N TYR D 52 245.288 304.863 228.959 1.00 90.27 ATOM 32 CA TYR D 52 246.647 305.313 229.275 1.00 90.27 ATOM 33 C TYR D 52 246.672 306.655 230.029 1.00 90.27 ATOM 34 O TYR D 52 247.348 306.794 231.048 1.00 90.27 ATOM 35 CB TYR D 52 247.455 305.408 227.977 1.00 90.27 ATOM 36 N ILE D 53 245.898 307.642 229.567 1.00 92.06 ATOM 37 CA ILE D 53 245.801 308.955 230.222 1.00 92.06 ATOM 38 C ILE D 53 245.218 308.815 231.631 1.00 92.06 ATOM 39 O ILE D 53 245.754 309.378 232.585 1.00 92.06 ATOM 40 CB ILE D 53 244.954 309.921 229.363 1.00 92.06 ATOM 41 N VAL D 54 244.135 308.050 231.768 1.00 93.04 ATOM 42 CA VAL D 54 243.458 307.823 233.046 1.00 93.04 ATOM 43 C VAL D 54 244.387 307.094 234.023 1.00 93.04 ATOM 44 O VAL D 54 244.451 307.471 235.190 1.00 93.04 ATOM 45 CB VAL D 54 242.136 307.070 232.801 1.00 93.04 ATOM 46 N GLN D 55 245.182 306.121 233.565 1.00 90.62 ATOM 47 CA GLN D 55 246.186 305.448 234.396 1.00 90.62 ATOM 48 C GLN D 55 247.228 306.430 234.931 1.00 90.62 ATOM 49 O GLN D 55 247.481 306.453 236.135 1.00 90.62 ATOM 50 CB GLN D 55 246.875 304.327 233.604 1.00 90.62 ATOM 51 N LEU D 56 247.774 307.286 234.061 1.00 90.05 ATOM 52 CA LEU D 56 248.744 308.309 234.450 1.00 90.05 ATOM 53 C LEU D 56 248.156 309.250 235.515 1.00 90.05 ATOM 54 O LEU D 56 248.819 309.598 236.492 1.00 90.05 ATOM 55 CB LEU D 56 249.155 309.080 233.181 1.00 90.05 ATOM 56 N GLN D 57 246.889 309.636 235.363 1.00 90.87 ATOM 57 CA GLN D 57 246.188 310.471 236.338 1.00 90.87 ATOM 58 C GLN D 57 245.927 309.738 237.665 1.00 90.87 ATOM 59 O GLN D 57 246.104 310.332 238.730 1.00 90.87 ATOM 60 CB GLN D 57 244.873 310.967 235.731 1.00 90.87 ATOM 61 N ILE D 58 245.561 308.451 237.639 1.00 91.98 ATOM 62 CA ILE D 58 245.390 307.629 238.850 1.00 91.98 ATOM 63 C ILE D 58 246.709 307.523 239.615 1.00 91.98 ATOM 64 O ILE D 58 246.721 307.674 240.839 1.00 91.98 ATOM 65 CB ILE D 58 244.847 306.220 238.500 1.00 91.98 ATOM 66 N GLU D 59 247.819 307.278 238.918 1.00 89.56 ATOM 67 CA GLU D 59 249.151 307.222 239.518 1.00 89.56 ATOM 68 C GLU D 59 249.558 308.586 240.097 1.00 89.56 ATOM 69 O GLU D 59 250.111 308.647 241.200 1.00 89.56 ATOM 70 CB GLU D 59 250.172 306.719 238.484 1.00 89.56 ATOM 71 N ASP D 60 249.202 309.689 239.427 1.00 88.76 ATOM 72 CA ASP D 60 249.440 311.041 239.934 1.00 88.76 ATOM 73 C ASP D 60 248.675 311.323 241.233 1.00 88.76 ATOM 74 O ASP D 60 249.261 311.726 242.243 1.00 88.76 ATOM 75 CB ASP D 60 249.122 312.115 238.872 1.00 88.76 ATOM 76 N LEU D 61 247.370 311.054 241.242 1.00 89.52 ATOM 77 CA LEU D 61 246.527 311.228 242.425 1.00 89.52 ATOM 78 C LEU D 61 246.957 310.306 243.566 1.00 89.52 ATOM 79 O LEU D 61 247.005 310.729 244.720 1.00 89.52 ATOM 80 CB LEU D 61 245.065 310.961 242.051 1.00 89.52 ATOM 81 N THR D 62 247.331 309.065 243.257 1.00 89.69 ATOM 82 CA THR D 62 247.840 308.114 244.254 1.00 89.69 ATOM 83 C THR D 62 249.156 308.607 244.853 1.00 89.69 ATOM 84 O THR D 62 249.338 308.529 246.070 1.00 89.69 ATOM 85 CB THR D 62 247.998 306.713 243.650 1.00 89.69 ATOM 86 N ARG D 63 250.049 309.192 244.045 1.00 85.94 ATOM 87 CA ARG D 63 251.271 309.830 244.543 1.00 85.94 ATOM 88 C ARG D 63 250.941 311.006 245.464 1.00 85.94 ATOM 89 O ARG D 63 251.451 311.010 246.577 1.00 85.94 ATOM 90 CB ARG D 63 252.171 310.241 243.372 1.00 85.94 ATOM 91 N LYS D 64 250.050 311.925 245.067 1.00 85.65 ATOM 92 CA LYS D 64 249.606 313.066 245.903 1.00 85.65 ATOM 93 C LYS D 64 249.016 312.616 247.244 1.00 85.65 ATOM 94 O LYS D 64 249.334 313.180 248.290 1.00 85.65 ATOM 95 CB LYS D 64 248.579 313.921 245.138 1.00 85.65 ATOM 96 N LEU D 65 248.203 311.556 247.236 1.00 87.06 ATOM 97 CA LEU D 65 247.608 310.976 248.446 1.00 87.06 ATOM 98 C LEU D 65 248.648 310.330 249.379 1.00 87.06 ATOM 99 O LEU D 65 248.497 310.408 250.602 1.00 87.06 ATOM 100 CB LEU D 65 246.540 309.943 248.035 1.00 87.06 ATOM 101 N ARG D 66 249.692 309.704 248.817 1.00 85.97 ATOM 102 CA ARG D 66 250.783 309.061 249.571 1.00 85.97 ATOM 103 C ARG D 66 251.813 310.060 250.101 1.00 85.97 ATOM 104 O ARG D 66 252.238 309.918 251.241 1.00 85.97 ATOM 105 CB ARG D 66 251.473 307.995 248.704 1.00 85.97 ATOM 106 N THR D 67 252.210 311.057 249.306 1.00 84.07 ATOM 107 CA THR D 67 253.200 312.072 249.709 1.00 84.07 ATOM 108 C THR D 67 252.615 313.129 250.642 1.00 84.07 ATOM 109 O THR D 67 253.364 313.794 251.349 1.00 84.07 ATOM 110 CB THR D 67 253.830 312.784 248.500 1.00 84.07 ATOM 111 N GLY D 68 251.288 313.296 250.657 1.00 78.91 ATOM 112 CA GLY D 68 250.636 314.383 251.393 1.00 78.91 ATOM 113 C GLY D 68 250.772 315.745 250.707 1.00 78.91 ATOM 114 O GLY D 68 250.404 316.757 251.302 1.00 78.91 TER ATOM 1 N THR D 96 242.589 313.617 259.174 1.00 81.16 ATOM 2 CA THR D 96 243.992 314.035 259.028 1.00 81.16 ATOM 3 C THR D 96 244.181 314.798 257.716 1.00 81.16 ATOM 4 O THR D 96 243.429 314.619 256.754 1.00 81.16 ATOM 5 CB THR D 96 244.974 312.858 259.135 1.00 81.16 ATOM 6 N ARG D 97 245.196 315.665 257.645 1.00 79.76 ATOM 7 CA ARG D 97 245.533 316.379 256.403 1.00 79.76 ATOM 8 C ARG D 97 245.860 315.386 255.289 1.00 79.76 ATOM 9 O ARG D 97 245.423 315.573 254.163 1.00 79.76 ATOM 10 CB ARG D 97 246.715 317.309 256.681 1.00 79.76 ATOM 11 N GLU D 98 246.573 314.323 255.635 1.00 81.53 ATOM 12 CA GLU D 98 246.947 313.232 254.743 1.00 81.53 ATOM 13 C GLU D 98 245.697 312.541 254.178 1.00 81.53 ATOM 14 O GLU D 98 245.619 312.315 252.971 1.00 81.53 ATOM 15 CB GLU D 98 247.831 312.230 255.513 1.00 81.53 ATOM 16 N PHE D 99 244.686 312.285 255.018 1.00 81.70 ATOM 17 CA PHE D 99 243.405 311.736 254.571 1.00 81.70 ATOM 18 C PHE D 99 242.658 312.703 253.649 1.00 81.70 ATOM 19 O PHE D 99 242.164 312.280 252.608 1.00 81.70 ATOM 20 CB PHE D 99 242.546 311.348 255.782 1.00 81.70 ATOM 21 N ARG D 100 242.614 314.006 253.966 1.00 82.02 ATOM 22 CA ARG D 100 241.967 315.002 253.094 1.00 82.02 ATOM 23 C ARG D 100 242.634 315.106 251.730 1.00 82.02 ATOM 24 O ARG D 100 241.936 315.130 250.722 1.00 82.02 ATOM 25 CB ARG D 100 241.960 316.389 253.732 1.00 82.02 ATOM 26 N THR D 101 243.964 315.159 251.690 1.00 85.41 ATOM 27 CA THR D 101 244.689 315.258 250.422 1.00 85.41 ATOM 28 C THR D 101 244.546 313.974 249.608 1.00 85.41 ATOM 29 O THR D 101 244.265 314.048 248.417 1.00 85.41 ATOM 30 CB THR D 101 246.166 315.603 250.634 1.00 85.41 ATOM 31 N ARG D 102 244.633 312.800 250.248 1.00 86.17 ATOM 32 CA ARG D 102 244.370 311.513 249.591 1.00 86.17 ATOM 33 C ARG D 102 242.946 311.446 249.033 1.00 86.17 ATOM 34 O ARG D 102 242.787 311.142 247.859 1.00 86.17 ATOM 35 CB ARG D 102 244.650 310.373 250.577 1.00 86.17 ATOM 36 N LYS D 103 241.934 311.798 249.833 1.00 85.62 ATOM 37 CA LYS D 103 240.526 311.819 249.409 1.00 85.62 ATOM 38 C LYS D 103 240.311 312.757 248.218 1.00 85.62 ATOM 39 O LYS D 103 239.646 312.378 247.264 1.00 85.62 ATOM 40 CB LYS D 103 239.635 312.195 250.604 1.00 85.62 ATOM 41 N LYS D 104 240.929 313.943 248.234 1.00 87.01 ATOM 42 CA LYS D 104 240.877 314.891 247.113 1.00 87.01 ATOM 43 C LYS D 104 241.478 314.303 245.828 1.00 87.01 ATOM 44 O LYS D 104 240.871 314.428 244.772 1.00 87.01 ATOM 45 CB LYS D 104 241.565 316.202 247.524 1.00 87.01 ATOM 46 N LEU D 105 242.633 313.636 245.915 1.00 89.55 ATOM 47 CA LEU D 105 243.258 312.968 244.765 1.00 89.55 ATOM 48 C LEU D 105 242.435 311.765 244.269 1.00 89.55 ATOM 49 O LEU D 105 242.384 311.512 243.069 1.00 89.55 ATOM 50 CB LEU D 105 244.682 312.518 245.145 1.00 89.55 ATOM 51 N GLU D 106 241.780 311.024 245.168 1.00 88.47 ATOM 52 CA GLU D 106 240.861 309.934 244.811 1.00 88.47 ATOM 53 C GLU D 106 239.608 310.445 244.087 1.00 88.47 ATOM 54 O GLU D 106 239.199 309.834 243.099 1.00 88.47 ATOM 55 CB GLU D 106 240.453 309.137 246.064 1.00 88.47 ATOM 56 N GLU D 107 239.031 311.563 244.537 1.00 88.08 ATOM 57 CA GLU D 107 237.907 312.246 243.880 1.00 88.08 ATOM 58 C GLU D 107 238.305 312.788 242.500 1.00 88.08 ATOM 59 O GLU D 107 237.593 312.570 241.521 1.00 88.08 ATOM 60 CB GLU D 107 237.384 313.390 244.774 1.00 88.08 ATOM 61 N GLU D 108 239.473 313.422 242.382 1.00 90.53 ATOM 62 CA GLU D 108 239.995 313.905 241.098 1.00 90.53 ATOM 63 C GLU D 108 240.229 312.746 240.119 1.00 90.53 ATOM 64 O GLU D 108 239.793 312.793 238.967 1.00 90.53 ATOM 65 CB GLU D 108 241.274 314.712 241.361 1.00 90.53 ATOM 66 N ARG D 109 240.819 311.644 240.601 1.00 91.92 ATOM 67 CA ARG D 109 240.989 310.417 239.817 1.00 91.92 ATOM 68 C ARG D 109 239.643 309.834 239.388 1.00 91.92 ATOM 69 O ARG D 109 239.518 309.372 238.257 1.00 91.92 ATOM 70 CB ARG D 109 241.806 309.414 240.640 1.00 91.92 ATOM 71 N HIS D 110 238.646 309.829 240.270 1.00 89.89 ATOM 72 CA HIS D 110 237.303 309.341 239.958 1.00 89.89 ATOM 73 C HIS D 110 236.634 310.161 238.847 1.00 89.89 ATOM 74 O HIS D 110 236.053 309.575 237.932 1.00 89.89 ATOM 75 CB HIS D 110 236.448 309.348 241.231 1.00 89.89 ATOM 76 N ASN D 111 236.755 311.490 238.893 1.00 90.71 ATOM 77 CA ASN D 111 236.203 312.370 237.865 1.00 90.71 ATOM 78 C ASN D 111 236.815 312.060 236.492 1.00 90.71 ATOM 79 O ASN D 111 236.083 311.856 235.527 1.00 90.71 ATOM 80 CB ASN D 111 236.438 313.832 238.273 1.00 90.71 ATOM 81 N LEU D 112 238.141 311.914 236.433 1.00 92.08 ATOM 82 CA LEU D 112 238.849 311.559 235.203 1.00 92.08 ATOM 83 C LEU D 112 238.494 310.160 234.694 1.00 92.08 ATOM 84 O LEU D 112 238.315 309.972 233.496 1.00 92.08 ATOM 85 CB LEU D 112 240.355 311.662 235.461 1.00 92.08 ATOM 86 N ILE D 113 238.346 309.168 235.576 1.00 91.20 ATOM 87 CA ILE D 113 237.900 307.825 235.167 1.00 91.20 ATOM 88 C ILE D 113 236.479 307.876 234.597 1.00 91.20 ATOM 89 O ILE D 113 236.194 307.197 233.616 1.00 91.20 ATOM 90 CB ILE D 113 238.021 306.827 236.339 1.00 91.20 ATOM 91 N THR D 114 235.595 308.677 235.187 1.00 88.47 ATOM 92 CA THR D 114 234.219 308.840 234.702 1.00 88.47 ATOM 93 C THR D 114 234.199 309.485 233.316 1.00 88.47 ATOM 94 O THR D 114 233.503 308.997 232.428 1.00 88.47 ATOM 95 CB THR D 114 233.387 309.654 235.700 1.00 88.47 ATOM 96 N GLU D 115 235.013 310.523 233.103 1.00 90.75 ATOM 97 CA GLU D 115 235.211 311.146 231.789 1.00 90.75 ATOM 98 C GLU D 115 235.800 310.151 230.778 1.00 90.75 ATOM 99 O GLU D 115 235.285 310.007 229.673 1.00 90.75 ATOM 100 CB GLU D 115 236.102 312.389 231.957 1.00 90.75 ATOM 101 N MET D 116 236.819 309.389 231.175 1.00 91.24 ATOM 102 CA MET D 116 237.457 308.387 230.326 1.00 91.24 ATOM 103 C MET D 116 236.487 307.295 229.872 1.00 91.24 ATOM 104 O MET D 116 236.465 306.957 228.695 1.00 91.24 ATOM 105 CB MET D 116 238.634 307.766 231.085 1.00 91.24 ATOM 106 N VAL D 117 235.678 306.740 230.780 1.00 90.51 ATOM 107 CA VAL D 117 234.699 305.692 230.445 1.00 90.51 ATOM 108 C VAL D 117 233.626 306.224 229.489 1.00 90.51 ATOM 109 O VAL D 117 233.138 305.477 228.643 1.00 90.51 ATOM 110 CB VAL D 117 234.072 305.113 231.730 1.00 90.51 ATOM 111 N ALA D 118 233.273 307.510 229.592 1.00 89.47 ATOM 112 CA ALA D 118 232.351 308.152 228.659 1.00 89.47 ATOM 113 C ALA D 118 232.972 308.375 227.267 1.00 89.47 ATOM 114 O ALA D 118 232.270 308.260 226.267 1.00 89.47 ATOM 115 CB ALA D 118 231.866 309.466 229.283 1.00 89.47 ATOM 116 N LEU D 119 234.275 308.678 227.196 1.00 89.79 ATOM 117 CA LEU D 119 235.004 308.867 225.936 1.00 89.79 ATOM 118 C LEU D 119 235.365 307.541 225.250 1.00 89.79 ATOM 119 O LEU D 119 235.308 307.450 224.025 1.00 89.79 ATOM 120 CB LEU D 119 236.285 309.679 226.205 1.00 89.79 TER