Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 4i2h_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 3.A OG GLN 8.A OE1 no hydrogen 2.782 N/A TYR 5.A N SER 3.A OG no hydrogen 2.925 N/A TYR 5.A OH GLU 297.A OE1 no hydrogen 2.657 N/A ALA 6.A N ASP 289.A OD1 no hydrogen 2.762 N/A CYS 7.A SG ASP 289.A O no hydrogen 3.711 N/A GLN 8.A N TYR 5.A O no hydrogen 3.032 N/A ARG 9.A N ALA 6.A O no hydrogen 3.099 N/A ARG 9.A NH1 SER 3.A O no hydrogen 3.037 N/A ARG 10.A NH1 TYR 332.A O no hydrogen 2.969 N/A ARG 10.A NH1 GLU 337.A OE1 no hydrogen 2.978 N/A THR 11.A N GLU 337.A O no hydrogen 2.825 N/A THR 12.A OG1 ASN 14.A OD1 no hydrogen 2.397 N/A ASN 14.A N ASN 14.A OD1 no hydrogen 2.685 N/A ASN 14.A ND2 TYR 16.A OH no hydrogen 3.226 N/A ASN 15.A ND2 THR 21.A OG1 no hydrogen 2.980 N/A ASN 17.A N ASN 15.A OD1 no hydrogen 2.894 N/A ASN 17.A ND2 LEU 50.A O no hydrogen 3.425 N/A ASN 17.A ND2 PHE 55.A O no hydrogen 3.102 N/A GLN 18.A NE2 ASP 22.A OD2 no hydrogen 3.058 N/A PHE 20.A N ASN 17.A O no hydrogen 3.030 N/A THR 21.A N ASN 17.A O no hydrogen 2.971 N/A THR 21.A OG1 ASN 17.A O no hydrogen 3.486 N/A ASP 22.A N GLN 18.A O no hydrogen 2.833 N/A LEU 24.A N PHE 20.A O no hydrogen 3.037 N/A ASP 25.A N THR 21.A O no hydrogen 2.848 N/A ILE 26.A N ASP 22.A O no hydrogen 3.210 N/A LEU 27.A N ALA 23.A O no hydrogen 3.093 N/A ALA 28.A N LEU 24.A O no hydrogen 2.939 N/A GLU 29.A N ASP 25.A O no hydrogen 3.020 N/A ASN 30.A N ILE 26.A O no hydrogen 2.974 N/A ASP 31.A N LEU 27.A O no hydrogen 3.107 N/A GLU 32.A N ALA 28.A O no hydrogen 3.040 N/A LEU 33.A N GLU 29.A O no hydrogen 3.067 N/A ARG 34.A N ASN 30.A O no hydrogen 2.867 N/A ARG 34.A NH2 ASP 95.A OD1 no hydrogen 3.266 N/A ARG 34.A NH2 ASP 95.A OD2 no hydrogen 2.970 N/A GLU 35.A N GLU 32.A O no hydrogen 3.154 N/A ASN 36.A N ASP 31.A O no hydrogen 2.682 N/A SER 39.A OG ASP 31.A OD2 no hydrogen 2.748 N/A CYS 40.A N ASN 36.A O no hydrogen 3.051 N/A CYS 40.A SG ALA 28.A O no hydrogen 3.394 N/A LEU 41.A N GLU 37.A O no hydrogen 2.973 N/A ALA 42.A N GLY 38.A O no hydrogen 3.110 N/A PHE 43.A N SER 39.A O no hydrogen 3.118 N/A MET 44.A N CYS 40.A O no hydrogen 2.947 N/A ARG 45.A N LEU 41.A O no hydrogen 2.983 N/A ALA 46.A N ALA 42.A O no hydrogen 3.243 N/A SER 47.A N PHE 43.A O no hydrogen 2.994 N/A SER 47.A OG ASP 25.A OD1 no hydrogen 2.644 N/A SER 48.A N MET 44.A O no hydrogen 2.983 N/A VAL 49.A N ARG 45.A O no hydrogen 3.024 N/A LEU 50.A N ALA 46.A O no hydrogen 3.188 N/A LYS 51.A N SER 47.A O no hydrogen 3.040 N/A LYS 51.A NZ ASP 25.A OD1 no hydrogen 3.472 N/A LYS 51.A NZ ASP 25.A OD2 no hydrogen 3.241 N/A SER 52.A N VAL 49.A O no hydrogen 3.089 N/A SER 52.A OG VAL 49.A O no hydrogen 2.686 N/A LEU 53.A N LEU 50.A O no hydrogen 3.140 N/A ILE 57.A N ASN 17.A OD1 no hydrogen 2.780 N/A THR 58.A N ASP 62.A OD1 no hydrogen 2.892 N/A THR 58.A OG1 ASP 62.A OD1 no hydrogen 3.201 N/A SER 59.A N ASP 62.A OD1 no hydrogen 3.200 N/A ASP 62.A N SER 59.A O no hydrogen 3.131 N/A THR 63.A N MET 60.A O no hydrogen 2.955 N/A THR 63.A OG1 MET 60.A O no hydrogen 2.739 N/A GLU 64.A N LYS 61.A O no hydrogen 3.160 N/A ILE 66.A N THR 63.A O no hydrogen 3.167 N/A CYS 68.A SG GLN 4.A O no hydrogen 3.997 N/A LYS 74.A N GLY 70.A O no hydrogen 2.941 N/A LYS 74.A NZ LEU 69.A O no hydrogen 3.562 N/A SER 75.A N ASP 71.A O no hydrogen 3.073 N/A SER 75.A OG ASP 71.A O no hydrogen 3.257 N/A ILE 76.A N LYS 72.A O no hydrogen 3.303 N/A ILE 77.A N VAL 73.A O no hydrogen 2.982 N/A GLU 78.A N LYS 74.A O no hydrogen 2.913 N/A GLY 79.A N SER 75.A O no hydrogen 3.052 N/A ILE 80.A N ILE 76.A O no hydrogen 3.149 N/A ILE 81.A N ILE 77.A O no hydrogen 2.980 N/A GLU 82.A N GLU 78.A O no hydrogen 2.988 N/A ASP 83.A N GLY 79.A O no hydrogen 3.428 N/A GLY 84.A N ILE 80.A O no hydrogen 2.761 N/A GLU 85.A N ASP 83.A OD1 no hydrogen 3.234 N/A SER 86.A OG GLU 88.A OE2 no hydrogen 2.983 N/A GLU 88.A N GLU 88.A OE2 no hydrogen 2.980 N/A ALA 89.A N SER 86.A OG no hydrogen 3.157 N/A LYS 90.A N SER 86.A O no hydrogen 3.070 N/A ALA 91.A N SER 87.A O no hydrogen 3.029 N/A VAL 92.A N GLU 88.A O no hydrogen 3.254 N/A LEU 93.A N ALA 89.A O no hydrogen 3.006 N/A ASN 94.A N LYS 90.A O no hydrogen 3.224 N/A ASP 95.A N VAL 92.A O no hydrogen 3.074 N/A ARG 97.A NH2 LEU 33.A O no hydrogen 3.554 N/A TYR 98.A N ASP 95.A OD2 no hydrogen 2.863 N/A TYR 98.A OH GLU 29.A OE2 no hydrogen 2.902 N/A LYS 99.A N ASP 95.A O no hydrogen 3.004 N/A LYS 99.A NZ GLU 96.A OE2 no hydrogen 2.823 N/A SER 100.A N GLU 96.A O no hydrogen 3.050 N/A SER 100.A OG GLU 96.A O no hydrogen 3.077 N/A PHE 101.A N ARG 97.A O no hydrogen 2.915 N/A LYS 102.A N TYR 98.A O no hydrogen 2.993 N/A LYS 102.A NZ GLU 29.A OE1 no hydrogen 2.771 N/A LYS 102.A NZ GLU 29.A OE2 no hydrogen 3.372 N/A LEU 103.A N LYS 99.A O no hydrogen 3.050 N/A PHE 104.A N SER 100.A O no hydrogen 2.837 N/A THR 105.A N PHE 101.A O no hydrogen 3.024 N/A THR 105.A OG1 PHE 101.A O no hydrogen 2.606 N/A THR 105.A OG1 LYS 102.A O no hydrogen 3.467 N/A SER 106.A N LEU 103.A O no hydrogen 3.348 N/A SER 106.A OG LEU 103.A O no hydrogen 2.683 N/A SER 106.A OG TYR 148.A OH no hydrogen 2.585 N/A VAL 107.A N PHE 104.A O no hydrogen 3.193 N/A VAL 110.A N VAL 107.A O no hydrogen 3.128 N/A ALA 115.A N GLY 111.A O no hydrogen 3.036 N/A GLU 116.A N LEU 112.A O no hydrogen 2.997 N/A LYS 117.A N LYS 113.A O no hydrogen 3.047 N/A TRP 118.A N THR 114.A O no hydrogen 2.980 N/A PHE 119.A N ALA 115.A O no hydrogen 3.012 N/A ARG 120.A N GLU 116.A O no hydrogen 3.002 N/A MET 121.A N LYS 117.A O no hydrogen 3.099 N/A MET 121.A N TRP 118.A O no hydrogen 3.147 N/A GLY 122.A N PHE 119.A O no hydrogen 2.991 N/A PHE 123.A N TRP 118.A O no hydrogen 3.075 N/A ARG 124.A NH2 PHE 119.A O no hydrogen 2.991 N/A ARG 124.A NH2 PHE 123.A O no hydrogen 2.836 N/A LYS 128.A N THR 125.A OG1 no hydrogen 3.338 N/A ILE 129.A N THR 125.A O no hydrogen 3.288 N/A GLN 130.A N LEU 126.A O no hydrogen 2.924 N/A GLN 130.A NE2 LEU 126.A O no hydrogen 3.410 N/A SER 131.A N SER 127.A O no hydrogen 3.180 N/A SER 131.A OG SER 127.A O no hydrogen 2.690 N/A ASP 132.A N ILE 129.A O no hydrogen 3.258 N/A SER 134.A N ASP 132.A OD1 no hydrogen 2.940 N/A LEU 135.A N ASP 132.A OD1 no hydrogen 3.126 N/A THR 138.A N GLN 141.A OE1 no hydrogen 2.967 N/A GLN 141.A N THR 138.A OG1 no hydrogen 3.271 N/A GLN 141.A NE2 GLY 109.A O no hydrogen 3.189 N/A LYS 142.A N THR 138.A O no hydrogen 3.028 N/A ALA 143.A N GLN 139.A O no hydrogen 3.191 N/A GLY 144.A N MET 140.A O no hydrogen 2.884 N/A PHE 145.A N GLN 141.A O no hydrogen 2.823 N/A LEU 146.A N LYS 142.A O no hydrogen 2.905 N/A TYR 147.A N ALA 143.A O no hydrogen 3.050 N/A TYR 148.A N PHE 145.A O no hydrogen 3.507 N/A TYR 148.A OH SER 106.A OG no hydrogen 2.585 N/A LEU 151.A N TYR 147.A O no hydrogen 3.024 N/A VAL 152.A N TYR 148.A O no hydrogen 2.875 N/A SER 153.A N GLU 149.A O no hydrogen 3.269 N/A SER 153.A N ASP 150.A O no hydrogen 3.279 N/A SER 153.A OG ASP 150.A O no hydrogen 2.741 N/A CYS 154.A SG HIS 194.A ND1 no hydrogen 3.979 N/A VAL 155.A N GLY 193.A O no hydrogen 2.843 N/A ASN 156.A N GLU 159.A OE1 no hydrogen 3.112 N/A GLU 159.A N ASN 156.A OD1 no hydrogen 3.028 N/A ALA 160.A N ASN 156.A O no hydrogen 2.935 N/A GLU 161.A N ARG 157.A O no hydrogen 2.869 N/A ALA 162.A N PRO 158.A O no hydrogen 2.999 N/A VAL 163.A N GLU 159.A O no hydrogen 2.936 N/A SER 164.A N ALA 160.A O no hydrogen 2.897 N/A MET 165.A N GLU 161.A O no hydrogen 3.087 N/A LEU 166.A N ALA 162.A O no hydrogen 3.289 N/A VAL 167.A N VAL 163.A O no hydrogen 2.912 N/A LYS 168.A N SER 164.A O no hydrogen 2.910 N/A GLU 169.A N MET 165.A O no hydrogen 2.902 N/A ALA 170.A N LEU 166.A O no hydrogen 3.103 N/A VAL 171.A N VAL 167.A O no hydrogen 2.928 N/A VAL 172.A N LYS 168.A O no hydrogen 3.016 N/A THR 173.A N ALA 170.A O no hydrogen 3.315 N/A THR 173.A OG1 GLU 169.A O no hydrogen 2.668 N/A PHE 174.A N VAL 171.A O no hydrogen 3.107 N/A LEU 175.A N VAL 171.A O no hydrogen 2.852 N/A ALA 178.A N LEU 175.A O no hydrogen 3.144 N/A LEU 179.A N THR 201.A O no hydrogen 2.768 N/A THR 181.A N LEU 199.A O no hydrogen 2.885 N/A THR 183.A N ASP 197.A O no hydrogen 2.883 N/A GLY 184.A N TRP 280.A O no hydrogen 2.942 N/A ARG 187.A N GLY 184.A O no hydrogen 3.080 N/A ARG 187.A NH1 THR 281.A OG1 no hydrogen 2.900 N/A ARG 187.A NH1 GLU 321.A OE1 no hydrogen 3.141 N/A ARG 187.A NH1 GLU 321.A OE2 no hydrogen 3.208 N/A ARG 187.A NH2 GLU 321.A OE1 no hydrogen 3.298 N/A ARG 188.A N GLY 185.A O no hydrogen 2.990 N/A ARG 188.A NE ASN 339.A OD1 no hydrogen 2.956 N/A ARG 188.A NH2 THR 281.A O no hydrogen 2.746 N/A GLY 189.A N PHE 186.A O no hydrogen 3.201 N/A LYS 190.A N GLY 185.A O no hydrogen 3.097 N/A GLY 193.A N VAL 155.A O no hydrogen 3.027 N/A VAL 196.A N ARG 262.A O no hydrogen 3.044 N/A PHE 198.A N ASP 264.A O no hydrogen 2.919 N/A LEU 199.A N THR 181.A O no hydrogen 2.793 N/A ILE 200.A N VAL 266.A O no hydrogen 2.745 N/A THR 201.A N LEU 179.A O no hydrogen 3.024 N/A THR 201.A OG1 CYS 268.A O no hydrogen 2.953 N/A SER 202.A OG ASP 177.A OD1 no hydrogen 3.269 N/A SER 202.A OG ASP 177.A OD2 no hydrogen 2.534 N/A GLU 204.A N ASP 177.A OD1 no hydrogen 2.953 N/A ALA 205.A N SER 202.A OG no hydrogen 3.144 N/A THR 206.A N GLU 209.A OE1 no hydrogen 3.197 N/A GLU 209.A N THR 206.A OG1 no hydrogen 3.084 N/A GLU 210.A N THR 206.A O no hydrogen 2.960 N/A GLN 211.A N GLU 207.A O no hydrogen 3.155 N/A GLN 212.A N ASP 208.A O no hydrogen 2.977 N/A LEU 213.A N GLU 209.A O no hydrogen 3.159 N/A LYS 216.A N GLN 212.A O no hydrogen 2.974 N/A VAL 217.A N LEU 213.A O no hydrogen 2.905 N/A THR 218.A N LEU 214.A O no hydrogen 3.093 N/A THR 218.A OG1 LEU 214.A O no hydrogen 2.714 N/A THR 218.A OG1 HIS 215.A O no hydrogen 3.221 N/A ASP 219.A N HIS 215.A O no hydrogen 2.992 N/A PHE 220.A N LYS 216.A O no hydrogen 2.981 N/A TRP 221.A N VAL 217.A O no hydrogen 3.137 N/A LYS 222.A N THR 218.A O no hydrogen 2.854 N/A GLN 223.A N ASP 219.A O no hydrogen 2.911 N/A GLN 224.A N PHE 220.A O no hydrogen 3.082 N/A GLY 225.A N LYS 222.A O no hydrogen 3.305 N/A LEU 226.A N TRP 221.A O no hydrogen 2.878 N/A LEU 228.A N ILE 243.A O no hydrogen 2.894 N/A TYR 229.A N ILE 243.A O no hydrogen 3.266 N/A ASP 231.A N PHE 241.A O no hydrogen 3.194 N/A HIS 236.A N HIS 305.A NE2 no hydrogen 2.865 N/A PHE 237.A N ASP 235.A OD2 no hydrogen 3.006 N/A GLN 238.A NE2 GLN 211.A O no hydrogen 2.740 N/A LYS 239.A NZ ASP 235.A O no hydrogen 2.947 N/A LYS 239.A NZ ASP 235.A OD2 no hydrogen 3.006 N/A LYS 239.A NZ PHE 237.A O no hydrogen 2.937 N/A CYS 240.A N LEU 265.A O no hydrogen 2.934 N/A PHE 241.A N ASP 231.A O no hydrogen 2.990 N/A LEU 242.A N VAL 263.A O no hydrogen 2.836 N/A ILE 243.A N TYR 229.A O no hydrogen 3.084 N/A LEU 244.A N ILE 261.A O no hydrogen 2.890 N/A LYS 245.A N LEU 226.A O no hydrogen 2.801 N/A LEU 246.A N LYS 259.A O no hydrogen 2.891 N/A HIS 248.A N GLY 257.A O no hydrogen 2.928 N/A ARG 250.A N ASP 247.A O no hydrogen 3.168 N/A VAL 251.A N HIS 248.A O no hydrogen 3.081 N/A LYS 259.A N LEU 246.A O no hydrogen 2.919 N/A LYS 259.A NZ SER 153.A OG no hydrogen 3.265 N/A LYS 259.A NZ CYS 154.A O no hydrogen 3.124 N/A LYS 259.A NZ GLU 159.A OE1 no hydrogen 3.136 N/A LYS 259.A NZ GLU 159.A OE2 no hydrogen 3.414 N/A ALA 260.A N ASP 150.A OD2 no hydrogen 2.801 N/A ILE 261.A N LEU 244.A O no hydrogen 2.977 N/A ARG 262.A NH1 LEU 242.A O no hydrogen 2.964 N/A ARG 262.A NH1 VAL 263.A O no hydrogen 3.329 N/A ARG 262.A NH1 ASP 264.A OD1 no hydrogen 2.797 N/A ARG 262.A NH2 ASP 264.A OD1 no hydrogen 2.804 N/A ARG 262.A NH2 ASP 264.A OD2 no hydrogen 3.402 N/A VAL 263.A N LEU 242.A O no hydrogen 2.900 N/A ASP 264.A N VAL 196.A O no hydrogen 2.963 N/A LEU 265.A N CYS 240.A O no hydrogen 3.047 N/A VAL 266.A N PHE 198.A O no hydrogen 2.990 N/A MET 267.A N GLN 238.A O no hydrogen 2.980 N/A CYS 268.A N ILE 200.A O no hydrogen 3.109 N/A CYS 268.A SG PRO 269.A O no hydrogen 3.554 N/A ARG 272.A N PRO 269.A O no hydrogen 3.017 N/A ARG 273.A N TYR 270.A O no hydrogen 3.291 N/A ARG 273.A NH1 TYR 270.A O no hydrogen 2.864 N/A ALA 276.A N ARG 272.A O no hydrogen 3.101 N/A LEU 277.A N ARG 273.A O no hydrogen 2.998 N/A LEU 278.A N ALA 274.A O no hydrogen 3.076 N/A GLY 279.A N PHE 275.A O no hydrogen 3.085 N/A TRP 280.A N ALA 276.A O no hydrogen 2.829 N/A TRP 280.A NE1 ASP 235.A OD1 no hydrogen 3.078 N/A THR 281.A N LEU 277.A O no hydrogen 2.971 N/A THR 281.A OG1 LEU 277.A O no hydrogen 2.642 N/A SER 283.A N ARG 338.A O no hydrogen 3.164 N/A SER 283.A OG ARG 338.A O no hydrogen 3.161 N/A SER 283.A OG ALA 340.A O no hydrogen 2.876 N/A PHE 286.A N SER 283.A OG no hydrogen 3.281 N/A GLU 287.A N SER 283.A O no hydrogen 3.008 N/A ARG 288.A N ARG 284.A O no hydrogen 3.017 N/A ARG 288.A NE GLN 285.A OE1 no hydrogen 2.903 N/A ARG 288.A NH2 GLN 285.A OE1 no hydrogen 2.765 N/A ASP 289.A N GLN 285.A O no hydrogen 3.106 N/A LEU 290.A N PHE 286.A O no hydrogen 2.966 N/A ARG 291.A N GLU 287.A O no hydrogen 3.103 N/A ARG 292.A N ARG 288.A O no hydrogen 3.002 N/A ARG 292.A NE ASP 289.A OD2 no hydrogen 3.159 N/A ARG 292.A NH2 GLN 4.A O no hydrogen 3.355 N/A ARG 292.A NH2 ASP 289.A OD2 no hydrogen 2.845 N/A TYR 293.A N ASP 289.A O no hydrogen 2.773 N/A ALA 294.A N LEU 290.A O no hydrogen 2.967 N/A THR 295.A N ARG 291.A O no hydrogen 3.094 N/A THR 295.A OG1 ARG 291.A O no hydrogen 3.076 N/A THR 295.A OG1 MET 300.A O no hydrogen 3.524 N/A HIS 296.A N ARG 292.A O no hydrogen 2.918 N/A HIS 296.A ND1 ARG 292.A O no hydrogen 3.098 N/A GLU 297.A N TYR 293.A O no hydrogen 2.833 N/A ARG 298.A N ALA 294.A O no hydrogen 3.220 N/A ARG 298.A NE LEU 328.A O no hydrogen 2.800 N/A LYS 299.A N THR 295.A O no hydrogen 3.244 N/A MET 300.A N ALA 294.A O no hydrogen 2.871 N/A MET 301.A N TYR 308.A O no hydrogen 2.799 N/A ASP 303.A N ALA 306.A O no hydrogen 3.183 N/A ASN 304.A ND2 ASP 235.A OD1 no hydrogen 3.475 N/A HIS 305.A N ASP 303.A OD1 no hydrogen 2.946 N/A HIS 305.A ND1 ASP 303.A OD1 no hydrogen 3.182 N/A HIS 305.A ND1 ASP 303.A OD2 no hydrogen 3.017 N/A ALA 306.A N ASP 303.A OD1 no hydrogen 3.069 N/A TYR 308.A N MET 301.A O no hydrogen 2.902 N/A ASP 309.A N VAL 314.A O no hydrogen 2.879 N/A ARG 310.A N LYS 299.A O no hydrogen 3.244 N/A THR 311.A N ASP 309.A OD1 no hydrogen 3.033 N/A LYS 312.A N ASP 309.A OD1 no hydrogen 3.034 N/A VAL 314.A N ASP 309.A O no hydrogen 3.241 N/A LEU 316.A N LEU 307.A O no hydrogen 2.733 N/A GLU 319.A N GLU 323.A OE2 no hydrogen 2.810 N/A GLU 322.A N GLU 322.A OE1 no hydrogen 2.873 N/A GLU 323.A N SER 320.A OG no hydrogen 3.367 N/A PHE 325.A N GLU 321.A O no hydrogen 3.020 N/A ALA 326.A N GLU 322.A O no hydrogen 2.966 N/A HIS 327.A N GLU 323.A O no hydrogen 2.987 N/A HIS 327.A NE2 GLU 317.A O no hydrogen 2.739 N/A LEU 328.A N ILE 324.A O no hydrogen 3.149 N/A LEU 328.A N PHE 325.A O no hydrogen 3.140 N/A GLY 329.A N ALA 326.A O no hydrogen 3.178 N/A LEU 330.A N PHE 325.A O no hydrogen 2.983 N/A TYR 332.A OH GLU 321.A OE1 no hydrogen 3.354 N/A GLU 334.A N GLU 337.A OE1 no hydrogen 2.893 N/A GLU 337.A N GLU 334.A O no hydrogen 2.828 N/A ARG 338.A N PRO 335.A O no hydrogen 3.078 N/A ARG 338.A NE ILE 333.A O no hydrogen 2.985 N/A ARG 338.A NH1 GLU 321.A OE2 no hydrogen 2.809 N/A ARG 338.A NH2 GLU 321.A OE1 no hydrogen 3.108 N/A ARG 338.A NH2 ILE 333.A O no hydrogen 3.103 N/A ASN 339.A N THR 11.A O no hydrogen 3.045 N/A ASN 339.A ND2 THR 11.A O no hydrogen 3.666 N/A ASN 339.A ND2 ARG 188.A O no hydrogen 3.123 N/A ASN 339.A ND2 TRP 336.A O no hydrogen 2.891 N/A