HEADER MEMBRANE PROTEIN 31-DEC-69 7AFT TITLE Cryo-EM structure of the signal sequence-engaged post-translational TITLE 2 Sec translocon COMPND MOL_ID: 2; COMPND 2 MOLECULE: Protein transport protein SBH1; COMPND 3 CHAIN: B; EXPDTA ELECTRON MICROSCOPY DBREF 7AFT B 1 82 UNP P52870 SC6B1_YEAST 1 82 SEQRES 1 B 32 ARG VAL ASP PRO LEU VAL VAL LEU PHE LEU ALA VAL GLY SEQRES 2 B 32 PHE ILE PHE SER VAL VAL ALA LEU HIS VAL ILE SER LYS SEQRES 3 B 32 VAL ALA GLY LYS LEU PHE ATOM 1 N ARG B 51 94.029 94.652 107.102 1.00216.03 ATOM 2 CA ARG B 51 92.927 94.898 106.185 1.00216.03 ATOM 3 C ARG B 51 92.134 96.116 106.628 1.00216.03 ATOM 4 O ARG B 51 91.276 96.606 105.903 1.00216.03 ATOM 5 CB ARG B 51 92.017 93.675 106.105 1.00216.03 ATOM 6 N VAL B 52 92.440 96.603 107.830 1.00192.66 ATOM 7 CA VAL B 52 91.708 97.724 108.408 1.00192.66 ATOM 8 C VAL B 52 91.975 98.997 107.615 1.00192.66 ATOM 9 O VAL B 52 93.120 99.301 107.254 1.00192.66 ATOM 10 CB VAL B 52 92.102 97.894 109.884 1.00192.66 ATOM 11 N ASP B 53 90.915 99.759 107.352 1.00163.66 ATOM 12 CA ASP B 53 91.072 101.015 106.642 1.00163.66 ATOM 13 C ASP B 53 91.646 102.083 107.569 1.00163.66 ATOM 14 O ASP B 53 91.420 102.052 108.782 1.00163.66 ATOM 15 CB ASP B 53 89.736 101.482 106.081 1.00163.66 ATOM 16 N PRO B 54 92.397 103.033 107.014 1.00166.70 ATOM 17 CA PRO B 54 93.059 104.038 107.863 1.00166.70 ATOM 18 C PRO B 54 92.102 104.819 108.739 1.00166.70 ATOM 19 O PRO B 54 92.442 105.182 109.874 1.00166.70 ATOM 20 CB PRO B 54 93.754 104.937 106.836 1.00166.70 ATOM 21 N LEU B 55 90.916 105.121 108.224 1.00160.24 ATOM 22 CA LEU B 55 89.907 105.767 109.047 1.00160.24 ATOM 23 C LEU B 55 89.619 104.923 110.273 1.00160.24 ATOM 24 O LEU B 55 89.525 105.436 111.392 1.00160.24 ATOM 25 CB LEU B 55 88.627 105.975 108.246 1.00160.24 ATOM 26 N VAL B 56 89.480 103.616 110.072 1.00171.85 ATOM 27 CA VAL B 56 89.202 102.719 111.182 1.00171.85 ATOM 28 C VAL B 56 90.373 102.707 112.145 1.00171.85 ATOM 29 O VAL B 56 90.195 102.657 113.368 1.00171.85 ATOM 30 CB VAL B 56 88.890 101.312 110.648 1.00171.85 ATOM 31 N VAL B 57 91.588 102.737 111.603 1.00167.10 ATOM 32 CA VAL B 57 92.782 102.882 112.429 1.00167.10 ATOM 33 C VAL B 57 92.622 104.050 113.384 1.00167.10 ATOM 34 O VAL B 57 92.689 103.900 114.611 1.00167.10 ATOM 35 CB VAL B 57 94.019 103.078 111.543 1.00167.10 ATOM 36 N LEU B 58 92.431 105.237 112.819 1.00167.10 ATOM 37 CA LEU B 58 92.289 106.421 113.653 1.00167.10 ATOM 38 C LEU B 58 91.168 106.249 114.658 1.00167.10 ATOM 39 O LEU B 58 91.313 106.616 115.828 1.00167.10 ATOM 40 CB LEU B 58 92.033 107.653 112.795 1.00167.10 ATOM 41 N PHE B 59 90.026 105.735 114.208 1.00179.61 ATOM 42 CA PHE B 59 88.872 105.653 115.088 1.00179.61 ATOM 43 C PHE B 59 89.190 104.794 116.299 1.00179.61 ATOM 44 O PHE B 59 88.943 105.194 117.442 1.00179.61 ATOM 45 CB PHE B 59 87.665 105.101 114.331 1.00179.61 ATOM 46 N LEU B 60 89.772 103.621 116.071 1.00178.00 ATOM 47 CA LEU B 60 90.075 102.747 117.194 1.00178.00 ATOM 48 C LEU B 60 91.129 103.369 118.099 1.00178.00 ATOM 49 O LEU B 60 91.043 103.260 119.328 1.00178.00 ATOM 50 CB LEU B 60 90.517 101.373 116.691 1.00178.00 ATOM 51 N ALA B 61 92.115 104.052 117.515 1.00175.60 ATOM 52 CA ALA B 61 93.175 104.636 118.329 1.00175.60 ATOM 53 C ALA B 61 92.624 105.721 119.237 1.00175.60 ATOM 54 O ALA B 61 92.933 105.774 120.436 1.00175.60 ATOM 55 CB ALA B 61 94.271 105.201 117.432 1.00175.60 ATOM 56 N VAL B 62 91.807 106.607 118.675 1.00205.75 ATOM 57 CA VAL B 62 91.278 107.690 119.482 1.00205.75 ATOM 58 C VAL B 62 90.283 107.159 120.492 1.00205.75 ATOM 59 O VAL B 62 90.198 107.677 121.606 1.00205.75 ATOM 60 CB VAL B 62 90.666 108.784 118.597 1.00205.75 ATOM 61 N GLY B 63 89.531 106.114 120.147 1.00213.31 ATOM 62 CA GLY B 63 88.679 105.490 121.142 1.00213.31 ATOM 63 C GLY B 63 89.480 104.956 122.309 1.00213.31 ATOM 64 O GLY B 63 89.110 105.142 123.472 1.00213.31 ATOM 65 N PHE B 64 90.602 104.304 122.014 1.00220.43 ATOM 66 CA PHE B 64 91.478 103.823 123.071 1.00220.43 ATOM 67 C PHE B 64 91.929 104.965 123.965 1.00220.43 ATOM 68 O PHE B 64 91.747 104.925 125.185 1.00220.43 ATOM 69 CB PHE B 64 92.688 103.121 122.469 1.00220.43 ATOM 70 N ILE B 65 92.544 105.986 123.371 1.00201.39 ATOM 71 CA ILE B 65 93.139 107.029 124.199 1.00201.39 ATOM 72 C ILE B 65 92.059 107.788 124.952 1.00201.39 ATOM 73 O ILE B 65 92.274 108.236 126.086 1.00201.39 ATOM 74 CB ILE B 65 94.010 107.964 123.346 1.00201.39 ATOM 75 N PHE B 66 90.882 107.928 124.346 1.00209.90 ATOM 76 CA PHE B 66 89.748 108.536 125.020 1.00209.90 ATOM 77 C PHE B 66 89.353 107.733 126.245 1.00209.90 ATOM 78 O PHE B 66 89.157 108.296 127.328 1.00209.90 ATOM 79 CB PHE B 66 88.586 108.638 124.036 1.00209.90 ATOM 80 N SER B 67 89.224 106.416 126.087 1.00231.69 ATOM 81 CA SER B 67 88.974 105.557 127.235 1.00231.69 ATOM 82 C SER B 67 90.045 105.745 128.296 1.00231.69 ATOM 83 O SER B 67 89.744 105.792 129.491 1.00231.69 ATOM 84 CB SER B 67 88.922 104.101 126.789 1.00231.69 ATOM 85 N VAL B 68 91.300 105.868 127.873 1.00236.97 ATOM 86 CA VAL B 68 92.399 105.980 128.827 1.00236.97 ATOM 87 C VAL B 68 92.256 107.237 129.665 1.00236.97 ATOM 88 O VAL B 68 92.312 107.194 130.899 1.00236.97 ATOM 89 CB VAL B 68 93.750 105.958 128.101 1.00236.97 ATOM 90 N VAL B 69 92.097 108.380 129.007 1.00237.68 ATOM 91 CA VAL B 69 92.037 109.631 129.752 1.00237.68 ATOM 92 C VAL B 69 90.769 109.690 130.593 1.00237.68 ATOM 93 O VAL B 69 90.777 110.204 131.722 1.00237.68 ATOM 94 CB VAL B 69 92.145 110.830 128.800 1.00237.68 ATOM 95 N ALA B 70 89.658 109.175 130.060 1.00240.24 ATOM 96 CA ALA B 70 88.434 109.113 130.843 1.00240.24 ATOM 97 C ALA B 70 88.646 108.298 132.105 1.00240.24 ATOM 98 O ALA B 70 88.233 108.709 133.191 1.00240.24 ATOM 99 CB ALA B 70 87.301 108.525 130.007 1.00240.24 ATOM 100 N LEU B 71 89.300 107.144 131.983 1.00253.38 ATOM 101 CA LEU B 71 89.544 106.303 133.146 1.00253.38 ATOM 102 C LEU B 71 90.475 106.993 134.133 1.00253.38 ATOM 103 O LEU B 71 90.270 106.916 135.348 1.00253.38 ATOM 104 CB LEU B 71 90.106 104.954 132.700 1.00253.38 ATOM 105 N HIS B 72 91.490 107.696 133.628 1.00251.61 ATOM 106 CA HIS B 72 92.356 108.482 134.504 1.00251.61 ATOM 107 C HIS B 72 91.554 109.465 135.341 1.00251.61 ATOM 108 O HIS B 72 91.604 109.438 136.577 1.00251.61 ATOM 109 CB HIS B 72 93.405 109.240 133.694 1.00251.61 ATOM 110 N VAL B 73 90.821 110.360 134.683 1.00247.29 ATOM 111 CA VAL B 73 90.146 111.405 135.441 1.00247.29 ATOM 112 C VAL B 73 89.026 110.820 136.288 1.00247.29 ATOM 113 O VAL B 73 88.738 111.321 137.381 1.00247.29 ATOM 114 CB VAL B 73 89.629 112.506 134.502 1.00247.29 ATOM 115 N ILE B 74 88.403 109.732 135.837 1.00273.30 ATOM 116 CA ILE B 74 87.288 109.191 136.594 1.00273.30 ATOM 117 C ILE B 74 87.793 108.410 137.792 1.00273.30 ATOM 118 O ILE B 74 87.087 108.283 138.790 1.00273.30 ATOM 119 CB ILE B 74 86.386 108.332 135.696 1.00273.30 ATOM 120 N SER B 75 89.028 107.908 137.740 1.00286.65 ATOM 121 CA SER B 75 89.635 107.344 138.937 1.00286.65 ATOM 122 C SER B 75 90.082 108.451 139.881 1.00286.65 ATOM 123 O SER B 75 89.973 108.314 141.105 1.00286.65 ATOM 124 CB SER B 75 90.811 106.448 138.555 1.00286.65 ATOM 125 N LYS B 76 90.594 109.553 139.327 1.00257.37 ATOM 126 CA LYS B 76 90.817 110.750 140.131 1.00257.37 ATOM 127 C LYS B 76 89.560 111.122 140.906 1.00257.37 ATOM 128 O LYS B 76 89.619 111.443 142.098 1.00257.37 ATOM 129 CB LYS B 76 91.254 111.904 139.230 1.00257.37 ATOM 130 N VAL B 77 88.406 111.050 140.246 1.00296.88 ATOM 131 CA VAL B 77 87.141 111.340 140.914 1.00296.88 ATOM 132 C VAL B 77 86.802 110.246 141.920 1.00296.88 ATOM 133 O VAL B 77 86.467 110.530 143.073 1.00296.88 ATOM 134 CB VAL B 77 86.018 111.520 139.880 1.00296.88 ATOM 135 N ALA B 78 86.878 108.980 141.499 1.00306.05 ATOM 136 CA ALA B 78 86.610 107.855 142.386 1.00306.05 ATOM 137 C ALA B 78 87.464 107.892 143.643 1.00306.05 ATOM 138 O ALA B 78 87.124 107.240 144.635 1.00306.05 ATOM 139 CB ALA B 78 86.839 106.538 141.644 1.00306.05 ATOM 140 N GLY B 79 88.571 108.623 143.613 1.00327.83 ATOM 141 CA GLY B 79 89.382 108.816 144.795 1.00327.83 ATOM 142 C GLY B 79 89.040 110.079 145.561 1.00327.83 ATOM 143 O GLY B 79 89.054 110.078 146.794 1.00327.83 ATOM 144 N LYS B 80 88.728 111.164 144.851 1.00323.98 ATOM 145 CA LYS B 80 88.489 112.446 145.508 1.00323.98 ATOM 146 C LYS B 80 87.037 112.607 145.955 1.00323.98 ATOM 147 O LYS B 80 86.761 112.758 147.148 1.00323.98 ATOM 148 CB LYS B 80 88.889 113.590 144.570 1.00323.98 ATOM 149 N LEU B 81 86.104 112.578 145.006 1.00329.39 ATOM 150 CA LEU B 81 84.691 112.780 145.301 1.00329.39 ATOM 151 C LEU B 81 83.908 111.479 145.424 1.00329.39 ATOM 152 O LEU B 81 82.681 111.520 145.575 1.00329.39 ATOM 153 CB LEU B 81 84.050 113.657 144.222 1.00329.39 ATOM 154 N PHE B 82 84.573 110.329 145.350 1.00321.23 ATOM 155 CA PHE B 82 83.888 109.046 145.501 1.00321.23 ATOM 156 C PHE B 82 84.748 108.029 146.243 1.00321.23 ATOM 157 O PHE B 82 84.653 106.826 145.998 1.00321.23 ATOM 158 CB PHE B 82 83.488 108.487 144.135 1.00321.23 TER