Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2alx_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): PHE 5.A N THR 3.A OG1 no hydrogen 3.249 N/A SER 6.A OG PRO 22.A O no hydrogen 2.664 N/A ASN 10.A N THR 8.A O no hydrogen 2.967 N/A GLN 12.A NE2 VAL 25.A O no hydrogen 3.095 N/A LEU 13.A N ASP 11.A OD1 no hydrogen 2.641 N/A LYS 14.A N ASP 11.A O no hydrogen 3.083 N/A MET 17.A N ASP 257.A OD1 no hydrogen 2.914 N/A MET 17.A N ASP 257.A OD2 no hydrogen 2.997 N/A PHE 19.A N LEU 98.A O no hydrogen 2.906 N/A GLY 20.A N SER 100.A OG no hydrogen 3.327 N/A GLN 21.A N GLU 15.A OE1 no hydrogen 2.666 N/A GLN 21.A NE2 SER 6.A OG no hydrogen 2.614 N/A GLN 21.A NE2 THR 8.A O no hydrogen 2.979 N/A ARG 27.A NE ASP 29.A OD1 no hydrogen 2.905 N/A ARG 27.A NH2 ASP 29.A OD1 no hydrogen 3.383 N/A ARG 27.A NH2 ASP 29.A OD2 no hydrogen 2.948 N/A TYR 28.A OH THR 106.A OG1 no hydrogen 2.593 N/A LYS 32.A NZ GLU 15.A O no hydrogen 2.623 N/A LYS 32.A NZ ASP 257.A OD1 no hydrogen 3.196 N/A TYR 33.A N GLU 103.A OE2 no hydrogen 3.113 N/A TYR 33.A OH ASP 257.A OD1 no hydrogen 2.787 N/A PHE 36.A N TYR 33.A O no hydrogen 3.377 N/A LYS 38.A N ASP 34.A O no hydrogen 2.953 N/A LEU 39.A N ILE 35.A O no hydrogen 2.867 N/A ILE 40.A N PHE 36.A O no hydrogen 3.116 N/A GLU 41.A N GLU 37.A O no hydrogen 3.036 N/A LYS 42.A N LYS 38.A O no hydrogen 2.856 N/A GLN 43.A N LEU 39.A O no hydrogen 2.679 N/A GLN 43.A NE2 GLN 43.A O no hydrogen 3.196 N/A GLN 43.A NE2 ASP 237.A OD1 no hydrogen 2.765 N/A LEU 44.A N ILE 40.A O no hydrogen 2.775 N/A SER 45.A N GLU 41.A O no hydrogen 3.184 N/A SER 45.A OG LYS 42.A O no hydrogen 3.055 N/A PHE 46.A N LYS 42.A O no hydrogen 3.081 N/A PHE 46.A N GLN 43.A O no hydrogen 2.982 N/A PHE 47.A N LEU 44.A O no hydrogen 3.397 N/A TRP 48.A NE1 ASP 237.A OD2 no hydrogen 3.038 N/A GLU 52.A N ARG 49.A O no hydrogen 3.283 N/A VAL 53.A N PRO 50.A O no hydrogen 2.976 N/A SER 56.A N ASP 54.A OD1 no hydrogen 3.270 N/A SER 56.A OG ASP 54.A OD1 no hydrogen 2.799 N/A SER 56.A OG ASP 54.A OD2 no hydrogen 3.348 N/A ASP 58.A N VAL 55.A O no hydrogen 2.854 N/A ARG 59.A N SER 56.A O no hydrogen 3.471 N/A ARG 59.A NH1 ASN 131.A OD1 no hydrogen 3.284 N/A ARG 59.A NH2 VAL 130.A O no hydrogen 3.432 N/A TYR 62.A N ASP 58.A O no hydrogen 2.898 N/A GLN 63.A N ARG 59.A O no hydrogen 3.034 N/A GLN 63.A NE2 ILE 129.A O no hydrogen 3.327 N/A ALA 64.A N ILE 60.A O no hydrogen 2.824 N/A LEU 65.A N ASP 61.A O no hydrogen 3.019 N/A HIS 68.A ND1 GLY 294.A O no hydrogen 2.946 N/A GLU 69.A N PRO 66.A O no hydrogen 2.722 N/A LYS 70.A N PRO 66.A O no hydrogen 2.924 N/A LYS 70.A NZ GLN 63.A O no hydrogen 3.473 N/A LYS 70.A NZ GLU 67.A OE2 no hydrogen 3.209 N/A HIS 71.A NE2 TYR 289.A O no hydrogen 2.809 N/A ILE 72.A N HIS 68.A O no hydrogen 3.374 N/A PHE 73.A N GLU 69.A O no hydrogen 3.394 N/A ILE 74.A N LYS 70.A O no hydrogen 2.797 N/A SER 75.A N HIS 71.A O no hydrogen 2.780 N/A SER 75.A OG HIS 71.A O no hydrogen 2.688 N/A ASN 76.A N ILE 72.A O no hydrogen 2.894 N/A ASN 76.A ND2 SER 211.A O no hydrogen 2.648 N/A LEU 77.A N PHE 73.A O no hydrogen 2.956 N/A LYS 78.A N ILE 74.A O no hydrogen 2.842 N/A LYS 78.A NZ ASP 139.A OD2 no hydrogen 2.784 N/A TYR 79.A N SER 75.A O no hydrogen 3.063 N/A TYR 79.A OH GLU 283.A OE2 no hydrogen 2.887 N/A GLN 80.A N ASN 76.A O no hydrogen 3.135 N/A GLN 80.A NE2 SER 211.A OG no hydrogen 2.885 N/A THR 81.A N LEU 77.A O no hydrogen 2.904 N/A THR 81.A OG1 LEU 77.A O no hydrogen 3.000 N/A LEU 82.A N LYS 78.A O no hydrogen 3.062 N/A LEU 83.A N TYR 79.A O no hydrogen 3.028 N/A ASP 84.A N GLN 80.A O no hydrogen 3.039 N/A SER 85.A N THR 81.A O no hydrogen 2.916 N/A SER 85.A OG THR 81.A O no hydrogen 2.899 N/A ILE 86.A N LEU 82.A O no hydrogen 2.969 N/A GLN 87.A N LEU 83.A O no hydrogen 2.831 N/A GLN 87.A NE2 GLU 204.A OE2 no hydrogen 2.684 N/A GLY 88.A N ASP 84.A O no hydrogen 2.872 N/A SER 90.A N ILE 86.A O no hydrogen 2.822 N/A SER 90.A OG ILE 86.A O no hydrogen 2.886 N/A ASN 92.A N ARG 89.A O no hydrogen 3.183 N/A VAL 93.A N ARG 89.A O no hydrogen 3.186 N/A ALA 94.A N SER 90.A O no hydrogen 2.912 N/A LEU 95.A N PRO 91.A O no hydrogen 3.020 N/A LEU 96.A N ASN 92.A O no hydrogen 3.146 N/A LEU 98.A N LEU 95.A O no hydrogen 2.949 N/A SER 100.A N MET 17.A O no hydrogen 2.921 N/A SER 100.A OG PRO 16.A O no hydrogen 2.241 N/A GLU 103.A N GLU 103.A OE1 no hydrogen 2.667 N/A GLU 105.A N ILE 101.A O no hydrogen 3.258 N/A THR 106.A N PRO 102.A O no hydrogen 3.066 N/A THR 106.A OG1 TYR 28.A OH no hydrogen 2.593 N/A TRP 107.A N GLU 103.A O no hydrogen 2.983 N/A VAL 108.A N LEU 104.A O no hydrogen 3.054 N/A GLU 109.A N GLU 105.A O no hydrogen 3.188 N/A THR 110.A N THR 106.A O no hydrogen 2.983 N/A THR 110.A OG1 THR 106.A O no hydrogen 2.741 N/A TRP 111.A N TRP 107.A O no hydrogen 2.655 N/A TRP 111.A NE1 GLU 204.A OE2 no hydrogen 3.108 N/A ALA 112.A N VAL 108.A O no hydrogen 2.822 N/A PHE 113.A N GLU 109.A O no hydrogen 2.909 N/A SER 114.A N THR 110.A O no hydrogen 2.812 N/A SER 114.A OG GLN 43.A OE1 no hydrogen 3.484 N/A SER 114.A OG THR 110.A O no hydrogen 3.485 N/A SER 114.A OG TRP 111.A O no hydrogen 2.725 N/A SER 114.A OG HIS 241.A NE2 no hydrogen 2.885 N/A GLU 115.A N TRP 111.A O no hydrogen 3.243 N/A THR 116.A N ALA 112.A O no hydrogen 3.288 N/A THR 116.A N PHE 113.A O no hydrogen 2.842 N/A THR 116.A OG1 PHE 113.A O no hydrogen 2.643 N/A ILE 117.A N PHE 113.A O no hydrogen 3.367 N/A HIS 118.A N SER 114.A O no hydrogen 3.229 N/A HIS 118.A NE2 ASP 237.A OD2 no hydrogen 2.750 N/A SER 119.A N GLU 115.A O no hydrogen 2.989 N/A SER 119.A OG GLU 115.A O no hydrogen 3.099 N/A ARG 120.A N THR 116.A O no hydrogen 2.964 N/A SER 121.A N ILE 117.A O no hydrogen 2.918 N/A SER 121.A OG HIS 118.A O no hydrogen 2.678 N/A TYR 122.A N HIS 118.A O no hydrogen 2.928 N/A TYR 122.A OH ASP 84.A OD2 no hydrogen 2.781 N/A THR 123.A N SER 119.A O no hydrogen 3.034 N/A THR 123.A OG1 SER 119.A O no hydrogen 3.555 N/A HIS 124.A N ARG 120.A O no hydrogen 2.774 N/A HIS 124.A NE2 VAL 53.A O no hydrogen 2.987 N/A ILE 125.A N SER 121.A O no hydrogen 2.904 N/A ILE 126.A N TYR 122.A O no hydrogen 3.002 N/A ARG 127.A N THR 123.A O no hydrogen 3.164 N/A ASN 128.A N ILE 125.A O no hydrogen 2.915 N/A ASN 128.A ND2 HIS 124.A O no hydrogen 3.661 N/A ILE 129.A N ILE 126.A O no hydrogen 3.366 N/A VAL 135.A N ASP 132.A O no hydrogen 3.012 N/A PHE 137.A N PRO 133.A O no hydrogen 3.093 N/A ASP 138.A N SER 134.A O no hydrogen 2.966 N/A ASP 139.A N VAL 135.A O no hydrogen 3.171 N/A ILE 140.A N VAL 136.A O no hydrogen 3.199 N/A ILE 140.A N PHE 137.A O no hydrogen 3.078 N/A VAL 141.A N ASP 138.A O no hydrogen 3.009 N/A THR 142.A N ASP 138.A O no hydrogen 3.036 N/A THR 142.A OG1 ASP 138.A O no hydrogen 3.118 N/A ASN 143.A N ASP 139.A O no hydrogen 2.673 N/A ILE 146.A N ASN 143.A O no hydrogen 2.724 N/A GLN 147.A N ASN 143.A O no hydrogen 3.107 N/A LYS 148.A NZ GLN 145.A OE1 no hydrogen 2.935 N/A ARG 149.A NH1 GLN 145.A O no hydrogen 2.668 N/A ARG 149.A NH1 GLN 145.A OE1 no hydrogen 2.708 N/A ARG 149.A NH2 GLN 282.A O no hydrogen 2.623 N/A ALA 150.A N ILE 146.A O no hydrogen 3.183 N/A GLU 151.A N GLN 147.A O no hydrogen 2.859 N/A ILE 153.A N ARG 149.A O no hydrogen 3.028 N/A SER 154.A N ALA 150.A O no hydrogen 3.254 N/A SER 154.A OG ALA 150.A O no hydrogen 3.257 N/A SER 155.A OG GLY 152.A O no hydrogen 3.116 N/A TYR 157.A OH GLN 87.A OE1 no hydrogen 2.620 N/A ASP 158.A N SER 154.A O no hydrogen 2.723 N/A GLU 159.A N SER 155.A O no hydrogen 2.741 N/A LEU 160.A N TYR 156.A O no hydrogen 3.197 N/A ILE 161.A N TYR 157.A O no hydrogen 2.842 N/A GLU 162.A N ASP 158.A O no hydrogen 2.910 N/A MET 163.A N GLU 159.A O no hydrogen 3.056 N/A THR 164.A N LEU 160.A O no hydrogen 2.973 N/A THR 164.A N ILE 161.A O no hydrogen 2.916 N/A THR 164.A OG1 LEU 160.A O no hydrogen 2.812 N/A SER 165.A N ILE 161.A O no hydrogen 3.078 N/A SER 165.A OG ILE 161.A O no hydrogen 3.548 N/A TRP 167.A N MET 163.A O no hydrogen 3.386 N/A HIS 168.A N THR 164.A O no hydrogen 3.093 N/A LEU 169.A N SER 165.A O no hydrogen 2.873 N/A LEU 170.A N TYR 166.A O no hydrogen 2.765 N/A GLY 173.A N VAL 184.A O no hydrogen 2.891 N/A HIS 175.A N VAL 182.A O no hydrogen 2.735 N/A HIS 175.A NE2 GLY 171.A O no hydrogen 2.797 N/A VAL 177.A N LYS 180.A O no hydrogen 2.796 N/A VAL 182.A N HIS 175.A O no hydrogen 2.592 N/A VAL 184.A N GLY 173.A O no hydrogen 2.982 N/A LEU 186.A N GLU 172.A OE1 no hydrogen 3.345 N/A ARG 187.A NH2 GLU 267.A OE2 no hydrogen 2.936 N/A GLU 188.A N SER 185.A O no hydrogen 3.205 N/A GLU 188.A N SER 185.A OG no hydrogen 3.157 N/A LEU 189.A N SER 185.A O no hydrogen 3.029 N/A LYS 190.A N LEU 186.A O no hydrogen 2.869 N/A LYS 190.A NZ ASP 258.A OD1 no hydrogen 3.470 N/A LYS 190.A NZ ASP 258.A OD2 no hydrogen 2.477 N/A LYS 190.A NZ GLU 260.A OE2 no hydrogen 2.722 N/A LYS 191.A N GLU 188.A O no hydrogen 3.148 N/A LYS 191.A NZ GLU 271.A OE1 no hydrogen 2.683 N/A LYS 191.A NZ GLU 271.A OE2 no hydrogen 3.113 N/A LYS 192.A N GLU 188.A O no hydrogen 2.878 N/A LEU 193.A N LEU 189.A O no hydrogen 2.870 N/A TYR 194.A N LYS 190.A O no hydrogen 3.172 N/A LEU 195.A N LYS 191.A O no hydrogen 2.907 N/A CYS 196.A N LYS 192.A O no hydrogen 3.214 N/A LEU 197.A N LEU 193.A O no hydrogen 2.800 N/A MET 198.A N TYR 194.A O no hydrogen 3.003 N/A SER 199.A N LEU 195.A O no hydrogen 2.675 N/A VAL 200.A N CYS 196.A O no hydrogen 2.559 N/A ASN 201.A N LEU 197.A O no hydrogen 3.026 N/A ALA 202.A N MET 198.A O no hydrogen 3.165 N/A LEU 203.A N SER 199.A O no hydrogen 3.117 N/A GLU 204.A N VAL 200.A O no hydrogen 2.978 N/A ALA 205.A N ASN 201.A O no hydrogen 2.751 N/A ILE 206.A N ALA 202.A O no hydrogen 2.824 N/A ARG 207.A N ALA 202.A O no hydrogen 3.014 N/A ARG 207.A NH1 TYR 79.A OH no hydrogen 3.230 N/A PHE 208.A N LEU 203.A O no hydrogen 3.172 N/A VAL 210.A N ILE 206.A O no hydrogen 2.978 N/A SER 211.A N PHE 208.A O no hydrogen 3.058 N/A SER 211.A OG PHE 208.A O no hydrogen 2.410 N/A PHE 212.A N PHE 208.A O no hydrogen 3.170 N/A PHE 212.A N TYR 209.A O no hydrogen 3.009 N/A ALA 213.A N TYR 209.A O no hydrogen 3.181 N/A CYS 214.A N VAL 210.A O no hydrogen 3.377 N/A CYS 214.A SG VAL 210.A O no hydrogen 2.829 N/A PHE 216.A N PHE 212.A O no hydrogen 2.704 N/A ALA 217.A N ALA 213.A O no hydrogen 3.086 N/A PHE 218.A N SER 215.A O no hydrogen 3.290 N/A GLU 220.A N PHE 216.A O no hydrogen 2.673 N/A ARG 221.A N ALA 217.A O no hydrogen 3.344 N/A ARG 221.A NH1 GLU 69.A OE2 no hydrogen 3.251 N/A ARG 221.A NH2 GLU 69.A OE1 no hydrogen 3.521 N/A ARG 221.A NH2 GLU 69.A OE2 no hydrogen 2.834 N/A GLU 222.A N ALA 219.A O no hydrogen 3.058 N/A LEU 223.A N PHE 218.A O no hydrogen 2.883 N/A GLY 226.A N ASP 58.A OD1 no hydrogen 3.066 N/A GLY 226.A N ASP 58.A OD2 no hydrogen 2.975 N/A ASN 227.A N ASP 58.A OD2 no hydrogen 2.963 N/A ALA 228.A N MET 224.A O no hydrogen 3.121 N/A LYS 229.A N GLU 225.A O no hydrogen 3.307 N/A ILE 230.A N GLY 226.A O no hydrogen 3.130 N/A ILE 231.A N ASN 227.A O no hydrogen 2.795 N/A ILE 234.A N ILE 230.A O no hydrogen 3.091 N/A ALA 235.A N ILE 231.A O no hydrogen 3.039 N/A ARG 236.A N ARG 232.A O no hydrogen 3.168 N/A ASP 237.A N LEU 233.A O no hydrogen 3.329 N/A GLU 238.A N ILE 234.A O no hydrogen 2.825 N/A ALA 239.A N ALA 235.A O no hydrogen 2.996 N/A LEU 240.A N ARG 236.A O no hydrogen 3.439 N/A HIS 241.A N ASP 237.A O no hydrogen 2.931 N/A HIS 241.A ND1 GLU 238.A OE1 no hydrogen 3.056 N/A HIS 241.A NE2 SER 114.A OG no hydrogen 2.885 N/A LEU 242.A N GLU 238.A O no hydrogen 2.929 N/A THR 243.A N ALA 239.A O no hydrogen 3.063 N/A THR 243.A OG1 ALA 239.A O no hydrogen 2.908 N/A GLY 244.A N LEU 240.A O no hydrogen 2.969 N/A THR 245.A N HIS 241.A O no hydrogen 3.033 N/A THR 245.A OG1 ASN 201.A OD1 no hydrogen 2.802 N/A THR 245.A OG1 HIS 241.A O no hydrogen 3.446 N/A THR 245.A OG1 LEU 242.A O no hydrogen 3.127 N/A GLN 246.A N LEU 242.A O no hydrogen 2.899 N/A HIS 247.A N THR 243.A O no hydrogen 3.083 N/A MET 248.A N GLY 244.A O no hydrogen 3.002 N/A LEU 249.A N THR 245.A O no hydrogen 2.969 N/A ASN 250.A N GLN 246.A O no hydrogen 3.021 N/A ASN 250.A ND2 ALA 318.A O no hydrogen 2.914 N/A LEU 251.A N MET 248.A O no hydrogen 2.987 N/A LEU 252.A N MET 248.A O no hydrogen 2.952 N/A ARG 253.A N LEU 249.A O no hydrogen 2.953 N/A ARG 253.A NH1 ASN 250.A OD1 no hydrogen 2.825 N/A SER 254.A OG LEU 251.A O no hydrogen 3.259 N/A GLY 255.A N LEU 252.A O no hydrogen 3.194 N/A ALA 256.A N SER 254.A OG no hydrogen 3.147 N/A ASP 257.A N LEU 251.A O no hydrogen 3.424 N/A MET 261.A N ASP 258.A O no hydrogen 2.745 N/A ALA 262.A N ASP 258.A O no hydrogen 3.285 N/A GLU 263.A N PRO 259.A O no hydrogen 2.867 N/A ILE 264.A N GLU 260.A O no hydrogen 3.058 N/A ALA 265.A N MET 261.A O no hydrogen 2.670 N/A ALA 265.A N ALA 262.A O no hydrogen 3.080 N/A GLU 266.A N ALA 262.A O no hydrogen 3.026 N/A GLU 267.A N GLU 263.A O no hydrogen 2.998 N/A CYS 268.A N ILE 264.A O no hydrogen 3.048 N/A CYS 268.A SG ILE 264.A O no hydrogen 3.122 N/A LYS 269.A NZ GLU 266.A OE1 no hydrogen 3.245 N/A LYS 269.A NZ GLU 266.A OE2 no hydrogen 2.582 N/A CYS 272.A SG CYS 268.A O no hydrogen 2.724 N/A TYR 273.A N LYS 269.A O no hydrogen 3.140 N/A ASP 274.A N GLN 270.A O no hydrogen 2.713 N/A LEU 275.A N GLU 271.A O no hydrogen 2.589 N/A VAL 277.A N TYR 273.A O no hydrogen 3.361 N/A GLN 278.A N ASP 274.A O no hydrogen 3.184 N/A ALA 279.A N LEU 275.A O no hydrogen 3.178 N/A ALA 280.A N PHE 276.A O no hydrogen 2.817 N/A GLN 281.A N VAL 277.A O no hydrogen 3.053 N/A GLN 282.A N GLN 278.A O no hydrogen 2.994 N/A GLU 283.A N ALA 279.A O no hydrogen 2.955 N/A GLU 283.A N ALA 280.A O no hydrogen 3.022 N/A LYS 284.A N ALA 280.A O no hydrogen 3.055 N/A LYS 284.A NZ GLU 309.A OE2 no hydrogen 2.940 N/A ASP 285.A N GLN 281.A O no hydrogen 3.079 N/A TRP 286.A N GLN 282.A O no hydrogen 3.167 N/A ALA 287.A N GLU 283.A O no hydrogen 3.355 N/A ALA 287.A N LYS 284.A O no hydrogen 2.790 N/A ASP 288.A N ASP 285.A O no hydrogen 3.021 N/A TYR 289.A N TRP 286.A O no hydrogen 3.027 N/A LEU 290.A N TRP 286.A O no hydrogen 3.201 N/A PHE 291.A N ALA 287.A O no hydrogen 3.186 N/A MET 296.A N LEU 299.A O no hydrogen 3.208 N/A LEU 299.A N MET 296.A O no hydrogen 3.355 N/A ILE 303.A N ASN 300.A OD1 no hydrogen 2.896 N/A LEU 304.A N ASN 300.A O no hydrogen 3.136 N/A CYS 305.A N LYS 301.A O no hydrogen 2.665 N/A GLN 306.A N ASP 302.A O no hydrogen 3.144 N/A GLN 306.A NE2 ASP 302.A O no hydrogen 3.392 N/A TYR 307.A N ILE 303.A O no hydrogen 3.020 N/A VAL 308.A N LEU 304.A O no hydrogen 2.871 N/A GLU 309.A N CYS 305.A O no hydrogen 3.315 N/A TYR 310.A N GLN 306.A O no hydrogen 3.030 N/A ILE 311.A N TYR 307.A O no hydrogen 2.671 N/A THR 312.A N VAL 308.A O no hydrogen 2.818 N/A THR 312.A OG1 VAL 308.A O no hydrogen 2.587 N/A ASN 313.A N GLU 309.A O no hydrogen 2.960 N/A ASN 313.A ND2 PHE 325.A O no hydrogen 3.109 N/A ILE 314.A N TYR 310.A O no hydrogen 3.245 N/A ARG 315.A N ILE 311.A O no hydrogen 3.077 N/A ARG 315.A NE ALA 205.A O no hydrogen 2.708 N/A MET 316.A N THR 312.A O no hydrogen 3.119 N/A GLN 317.A N ASN 313.A O no hydrogen 3.290 N/A ALA 318.A N ILE 314.A O no hydrogen 3.224 N/A VAL 319.A N MET 316.A O no hydrogen 3.157 N/A GLY 320.A N GLN 317.A O no hydrogen 2.850 N/A PHE 325.A N ASN 313.A OD1 no hydrogen 3.039 N/A ARG 328.A NE GLN 326.A O no hydrogen 2.585 N/A ILE 332.A N ASN 330.A OD1 no hydrogen 2.717 N/A ILE 335.A N ILE 332.A O no hydrogen 2.913 N/A ASN 336.A N PRO 333.A O no hydrogen 3.220 N/A THR 337.A N TRP 334.A O no hydrogen 2.818 N/A THR 337.A OG1 TRP 334.A O no hydrogen 2.797 N/A TRP 338.A NE1 GLU 220.A OE2 no hydrogen 3.160 N/A