Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 3nie_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ALA 6.A N PHE 3.A O no hydrogen 2.976 N/A ASN 10.A ND2 TYR 32.A OH no hydrogen 3.356 N/A VAL 11.A N ILE 8.A O no hydrogen 3.356 N/A LYS 12.A N TYR 95.A OH no hydrogen 3.160 N/A ASN 16.A ND2 ASP 36.A OD1 no hydrogen 2.728 N/A TYR 17.A N PRO 14.A O no hydrogen 2.997 N/A TYR 17.A OH ASP 81.A OD2 no hydrogen 2.656 N/A GLU 18.A N TYR 35.A O no hydrogen 2.851 N/A LYS 20.A N LEU 33.A O no hydrogen 2.759 N/A HIS 21.A N LEU 33.A O no hydrogen 3.356 N/A HIS 21.A ND1 LEU 22.A O no hydrogen 3.090 N/A ILE 23.A N VAL 31.A O no hydrogen 2.958 N/A GLY 24.A N VAL 31.A O no hydrogen 3.260 N/A ARG 25.A NE TYR 30.A OH no hydrogen 3.014 N/A ARG 25.A NH2 TYR 30.A OH no hydrogen 3.243 N/A GLY 26.A N GLY 29.A O no hydrogen 2.997 N/A SER 27.A OG VAL 173.A O no hydrogen 2.576 N/A TYR 30.A N LYS 47.A O no hydrogen 3.190 N/A VAL 31.A N GLY 24.A O no hydrogen 2.739 N/A TYR 32.A N ILE 45.A O no hydrogen 2.992 N/A LEU 33.A N HIS 21.A O no hydrogen 2.739 N/A ALA 34.A N VAL 43.A O no hydrogen 3.046 N/A TYR 35.A N GLU 18.A O no hydrogen 2.936 N/A ASP 36.A N LYS 41.A O no hydrogen 2.823 N/A LYS 37.A N ASN 16.A O no hydrogen 2.943 N/A LYS 37.A NZ ASP 15.A O no hydrogen 2.986 N/A ASN 38.A N ASP 36.A OD1 no hydrogen 3.124 N/A ASN 40.A N ASP 36.A O no hydrogen 2.852 N/A VAL 43.A N ALA 34.A O no hydrogen 2.797 N/A ALA 44.A N LEU 98.A O no hydrogen 2.866 N/A ILE 45.A N TYR 32.A O no hydrogen 2.907 N/A LYS 46.A N ILE 96.A O no hydrogen 2.633 N/A LYS 46.A NZ GLU 64.A OE1 no hydrogen 3.463 N/A LYS 46.A NZ GLU 64.A OE2 no hydrogen 2.503 N/A LYS 47.A N TYR 30.A O no hydrogen 2.835 N/A LYS 47.A NZ ASN 10.A O no hydrogen 2.498 N/A LYS 47.A NZ ASN 10.A OD1 no hydrogen 3.037 N/A LYS 47.A NZ TYR 95.A OH no hydrogen 3.054 N/A VAL 48.A N LEU 94.A O no hydrogen 3.025 N/A ASN 49.A ND2 GLU 93.A OE2 no hydrogen 3.029 N/A MET 51.A N ASP 92.A O no hydrogen 2.980 N/A PHE 52.A N ASP 92.A OD1 no hydrogen 2.906 N/A ILE 56.A N ASP 54.A OD1 no hydrogen 3.039 N/A CYS 58.A N ASP 54.A O no hydrogen 3.005 N/A LYS 59.A N LEU 55.A O no hydrogen 2.958 N/A LYS 59.A NZ ASP 337.A O no hydrogen 3.202 N/A LYS 59.A NZ ASP 338.A O no hydrogen 2.415 N/A LYS 59.A NZ MET 340.A O no hydrogen 2.804 N/A ARG 60.A N ILE 56.A O no hydrogen 3.073 N/A ILE 61.A N ASP 57.A O no hydrogen 3.186 N/A LEU 62.A N CYS 58.A O no hydrogen 3.124 N/A ARG 63.A N LYS 59.A O no hydrogen 2.856 N/A ARG 63.A NH1 ASP 338.A OD1 no hydrogen 3.164 N/A GLU 64.A N ARG 60.A O no hydrogen 2.980 N/A ILE 65.A N ILE 61.A O no hydrogen 3.033 N/A THR 66.A N LEU 62.A O no hydrogen 2.823 N/A THR 66.A OG1 LEU 62.A O no hydrogen 2.777 N/A THR 66.A OG1 ARG 63.A O no hydrogen 3.143 N/A ILE 67.A N ARG 63.A O no hydrogen 3.058 N/A LEU 68.A N GLU 64.A O no hydrogen 3.215 N/A ASN 69.A N ILE 65.A O no hydrogen 3.061 N/A ASN 69.A ND2 GLU 354.A OE1 no hydrogen 2.986 N/A ASN 69.A ND2 SER 357.A OG no hydrogen 3.247 N/A ARG 70.A N ILE 67.A O no hydrogen 3.008 N/A ARG 70.A NH1 THR 66.A O no hydrogen 2.741 N/A ARG 70.A NH1 GLU 354.A OE1 no hydrogen 2.683 N/A ARG 70.A NH2 GLU 354.A OE1 no hydrogen 3.540 N/A ARG 70.A NH2 GLU 354.A OE2 no hydrogen 2.849 N/A LEU 71.A N LEU 68.A O no hydrogen 3.455 N/A TYR 75.A N SER 73.A OG no hydrogen 3.020 N/A ILE 76.A N SER 73.A O no hydrogen 3.251 N/A ILE 77.A N ILE 159.A O no hydrogen 2.961 N/A ARG 78.A N GLU 99.A OE1 no hydrogen 3.037 N/A HIS 80.A N VAL 97.A O no hydrogen 2.992 N/A HIS 80.A NE2 ASP 36.A OD2 no hydrogen 2.961 N/A ASP 81.A N VAL 97.A O no hydrogen 3.225 N/A ILE 83.A N TYR 95.A O no hydrogen 3.208 N/A LYS 90.A N ASP 87.A O no hydrogen 3.216 N/A LYS 90.A N ASP 87.A OD1 no hydrogen 3.366 N/A LEU 94.A N VAL 48.A O no hydrogen 3.200 N/A TYR 95.A OH ASN 10.A O no hydrogen 3.129 N/A ILE 96.A N LYS 46.A O no hydrogen 2.766 N/A VAL 97.A N ASP 81.A O no hydrogen 2.860 N/A LEU 98.A N ALA 44.A O no hydrogen 2.646 N/A GLU 99.A N ARG 78.A O no hydrogen 2.959 N/A ASP 102.A N ASN 152.A OD1 no hydrogen 2.772 N/A SER 103.A N LEU 151.A O no hydrogen 2.677 N/A SER 103.A OG ASP 104.A O no hydrogen 3.450 N/A LEU 105.A N CYS 149.A O no hydrogen 3.059 N/A LYS 106.A N PRO 146.A O no hydrogen 3.254 N/A LYS 107.A N ASP 104.A OD1 no hydrogen 2.770 N/A LYS 107.A NZ ILE 23.A O no hydrogen 3.088 N/A LEU 108.A N ASP 104.A O no hydrogen 3.054 N/A PHE 109.A N LEU 105.A O no hydrogen 3.037 N/A LYS 110.A N LYS 107.A O no hydrogen 3.020 N/A THR 111.A N LYS 107.A O no hydrogen 3.113 N/A THR 111.A N LEU 108.A O no hydrogen 3.052 N/A THR 111.A OG1 LEU 108.A O no hydrogen 2.743 N/A LEU 115.A N MET 209.A O no hydrogen 2.944 N/A THR 116.A N HIS 119.A ND1 no hydrogen 3.268 N/A THR 116.A OG1 HIS 119.A ND1 no hydrogen 3.107 N/A HIS 119.A N THR 116.A OG1 no hydrogen 3.114 N/A VAL 120.A N THR 116.A O no hydrogen 3.197 N/A LYS 121.A N GLU 117.A O no hydrogen 3.021 N/A LYS 121.A NZ TYR 315.A O no hydrogen 2.919 N/A THR 122.A N GLN 118.A O no hydrogen 2.766 N/A THR 122.A OG1 GLN 118.A O no hydrogen 2.597 N/A ILE 123.A N HIS 119.A O no hydrogen 2.962 N/A LEU 124.A N VAL 120.A O no hydrogen 3.023 N/A TYR 125.A N LYS 121.A O no hydrogen 2.995 N/A TYR 125.A OH GLU 325.A OE2 no hydrogen 2.766 N/A ASN 126.A N THR 122.A O no hydrogen 3.099 N/A ASN 126.A ND2 CYS 155.A O no hydrogen 2.775 N/A LEU 127.A N ILE 123.A O no hydrogen 3.006 N/A LEU 128.A N LEU 124.A O no hydrogen 2.956 N/A LEU 129.A N TYR 125.A O no hydrogen 2.932 N/A GLY 130.A N ASN 126.A O no hydrogen 3.347 N/A GLU 131.A N LEU 127.A O no hydrogen 3.031 N/A LYS 132.A N LEU 128.A O no hydrogen 2.889 N/A PHE 133.A N LEU 129.A O no hydrogen 3.203 N/A ILE 134.A N GLY 130.A O no hydrogen 3.058 N/A HIS 135.A N GLU 131.A O no hydrogen 2.859 N/A GLU 136.A N LYS 132.A O no hydrogen 2.801 N/A SER 137.A N PHE 133.A O no hydrogen 3.080 N/A SER 137.A OG PHE 133.A O no hydrogen 2.570 N/A GLY 138.A N HIS 135.A O no hydrogen 2.609 N/A ILE 139.A N ILE 134.A O no hydrogen 3.011 N/A ILE 140.A N ARG 166.A O no hydrogen 2.856 N/A HIS 141.A N ASP 195.A OD2 no hydrogen 3.120 N/A HIS 141.A NE2 CYS 160.A O no hydrogen 2.785 N/A ARG 142.A N ASP 195.A OD1 no hydrogen 2.941 N/A ARG 142.A NH2 LEU 164.A O no hydrogen 2.497 N/A ASP 143.A N HIS 141.A ND1 no hydrogen 3.127 N/A LYS 145.A N ASN 148.A OD1 no hydrogen 2.949 N/A LYS 145.A NZ ASP 143.A OD2 no hydrogen 2.975 N/A ASN 148.A N LYS 145.A O no hydrogen 3.017 N/A ASN 148.A ND2 ASP 143.A O no hydrogen 2.637 N/A ASN 148.A ND2 ASP 161.A OD2 no hydrogen 3.446 N/A CYS 149.A SG LYS 145.A O no hydrogen 3.512 N/A LEU 150.A N LYS 158.A O no hydrogen 2.942 N/A LEU 151.A N SER 103.A O no hydrogen 2.668 N/A ASN 152.A N SER 156.A O no hydrogen 3.059 N/A GLN 153.A N ASP 102.A OD2 no hydrogen 2.826 N/A CYS 155.A N ASN 152.A O no hydrogen 2.745 N/A SER 156.A N ASP 154.A OD1 no hydrogen 2.728 N/A SER 156.A OG ASP 154.A OD1 no hydrogen 2.924 N/A LYS 158.A N LEU 150.A O no hydrogen 3.013 N/A LYS 158.A NZ ASP 74.A O no hydrogen 2.532 N/A LYS 158.A NZ GLU 99.A OE2 no hydrogen 2.848 N/A ILE 159.A N TYR 75.A O no hydrogen 3.087 N/A CYS 160.A N ASN 148.A O no hydrogen 3.113 N/A CYS 160.A SG ASN 148.A O no hydrogen 3.708 N/A ALA 165.A N PHE 162.A O no hydrogen 2.985 N/A ARG 166.A N ILE 140.A O no hydrogen 2.878 N/A ILE 168.A N GLY 138.A O no hydrogen 2.870 N/A HIS 172.A NE2 ASP 57.A OD2 no hydrogen 2.796 N/A VAL 174.A N CYS 229.A O no hydrogen 2.874 N/A ARG 176.A NH1 SER 228.A O no hydrogen 3.011 N/A TRP 177.A NE1 SER 227.A O no hydrogen 2.997 N/A TYR 178.A OH GLU 205.A OE2 no hydrogen 2.468 N/A ARG 179.A N ARG 176.A O no hydrogen 3.297 N/A GLU 182.A N GLU 182.A OE1 no hydrogen 2.834 N/A ILE 184.A N ALA 180.A O no hydrogen 2.907 N/A LEU 185.A N PRO 181.A O no hydrogen 2.570 N/A LEU 186.A N LEU 183.A O no hydrogen 2.765 N/A GLN 187.A N GLU 182.A O no hydrogen 3.085 N/A THR 191.A OG1 SER 193.A OG no hydrogen 2.581 N/A ASN 192.A ND2 ILE 139.A O no hydrogen 2.959 N/A SER 193.A N THR 191.A OG1 no hydrogen 3.194 N/A SER 193.A OG THR 191.A OG1 no hydrogen 2.581 N/A ILE 194.A N THR 191.A O no hydrogen 3.439 N/A ASP 195.A N ASN 192.A O no hydrogen 2.810 N/A ILE 196.A N ASN 192.A O no hydrogen 3.339 N/A TRP 197.A N SER 193.A O no hydrogen 2.955 N/A SER 198.A N ILE 194.A O no hydrogen 3.383 N/A SER 198.A OG TYR 178.A O no hydrogen 2.740 N/A SER 198.A OG ILE 194.A O no hydrogen 3.258 N/A THR 199.A N ASP 195.A O no hydrogen 2.958 N/A THR 199.A OG1 GLU 131.A OE1 no hydrogen 2.972 N/A THR 199.A OG1 GLU 131.A OE2 no hydrogen 2.289 N/A THR 199.A OG1 ASP 195.A O no hydrogen 2.437 N/A GLY 200.A N ILE 196.A O no hydrogen 2.917 N/A CYS 201.A N TRP 197.A O no hydrogen 3.139 N/A CYS 201.A SG TRP 177.A O no hydrogen 3.870 N/A CYS 201.A SG TRP 197.A O no hydrogen 3.641 N/A ILE 202.A N SER 198.A O no hydrogen 3.062 N/A PHE 203.A N THR 199.A O no hydrogen 2.891 N/A ALA 204.A N GLY 200.A O no hydrogen 2.966 N/A GLU 205.A N CYS 201.A O no hydrogen 3.330 N/A LEU 206.A N ILE 202.A O no hydrogen 2.827 N/A LEU 207.A N PHE 203.A O no hydrogen 2.761 N/A ASN 208.A N ALA 204.A O no hydrogen 3.033 N/A ASN 208.A ND2 PHE 221.A O no hydrogen 2.681 N/A MET 209.A N LEU 206.A O no hydrogen 3.215 N/A MET 210.A N LEU 207.A O no hydrogen 3.294 N/A LYS 211.A NZ.A ASN 215.A O no hydrogen 3.261 N/A SER 212.A OG SER 284.A OG no hydrogen 2.878 N/A HIS 213.A N MET 210.A O no hydrogen 3.027 N/A HIS 213.A ND1 LEU 207.A O no hydrogen 2.946 N/A ILE 214.A N MET 210.A O no hydrogen 3.121 N/A ASN 219.A N ASN 216.A O no hydrogen 2.827 N/A ARG 220.A N PRO 217.A O no hydrogen 3.454 N/A ARG 220.A NH1 PHE 109.A O no hydrogen 3.415 N/A ARG 220.A NH1 THR 111.A O no hydrogen 2.707 N/A ARG 220.A NH1 ILE 113.A O no hydrogen 3.309 N/A ARG 220.A NH2 ILE 113.A O no hydrogen 2.559 N/A GLY 226.A N PHE 224.A O no hydrogen 2.886 N/A GLY 226.A N GLN 239.A OE1 no hydrogen 3.219 N/A SER 227.A N GLN 239.A OE1 no hydrogen 2.759 N/A SER 235.A OG ASN 236.A OD1 no hydrogen 3.092 N/A ARG 237.A N GLU 233.A O no hydrogen 2.892 N/A ASP 238.A N LYS 234.A O no hydrogen 3.051 N/A GLN 239.A N SER 235.A O no hydrogen 3.130 N/A GLN 239.A NE2 PHE 224.A O no hydrogen 2.935 N/A LEU 240.A N ASN 236.A O no hydrogen 2.890 N/A ASN 241.A N ARG 237.A O no hydrogen 2.726 N/A ILE 242.A N ASP 238.A O no hydrogen 3.045 N/A ILE 243.A N GLN 239.A O no hydrogen 3.227 N/A PHE 244.A N LEU 240.A O no hydrogen 3.118 N/A ASN 245.A N ASN 241.A O no hydrogen 2.947 N/A VAL 246.A N ILE 242.A O no hydrogen 3.236 N/A VAL 246.A N ILE 243.A O no hydrogen 3.075 N/A ILE 247.A N ILE 243.A O no hydrogen 2.964 N/A GLY 248.A N PHE 244.A O no hydrogen 2.792 N/A THR 249.A N ARG 273.A O no hydrogen 3.104 N/A THR 249.A OG1 PRO 271.A O no hydrogen 3.307 N/A ASP 254.A N PRO 251.A O no hydrogen 2.984 N/A LEU 255.A N GLU 252.A O no hydrogen 3.099 N/A GLU 262.A N GLU 262.A OE2 no hydrogen 3.076 N/A VAL 263.A N LYS 260.A O no hydrogen 3.238 N/A ILE 264.A N LYS 260.A O no hydrogen 3.409 N/A LYS 265.A N GLN 261.A O no hydrogen 3.025 N/A TYR 266.A N GLU 262.A O no hydrogen 2.876 N/A ILE 267.A N VAL 263.A O no hydrogen 2.842 N/A LYS 268.A N ILE 264.A O no hydrogen 2.756 N/A LYS 268.A NZ GLU 252.A OE2 no hydrogen 2.366 N/A LEU 269.A N TYR 266.A O no hydrogen 3.124 N/A PHE 270.A N ILE 267.A O no hydrogen 2.677 N/A ARG 273.A N THR 249.A OG1 no hydrogen 3.294 N/A ARG 273.A NE PRO 271.A O no hydrogen 2.970 N/A ARG 273.A NH1 ASN 241.A OD1 no hydrogen 3.155 N/A ARG 273.A NH1 ASN 245.A OD1 no hydrogen 2.845 N/A ARG 273.A NH2 PRO 271.A O no hydrogen 2.869 N/A ILE 276.A N VAL 246.A O no hydrogen 2.765 N/A SER 279.A N ASP 277.A OD1 no hydrogen 2.939 N/A LYS 280.A N ASP 277.A O no hydrogen 3.173 N/A LYS 280.A N ASP 277.A OD1 no hydrogen 3.403 N/A LYS 281.A N ASP 277.A O no hydrogen 3.202 N/A TYR 282.A N LEU 278.A O no hydrogen 2.726 N/A TYR 282.A OH ASN 208.A OD1 no hydrogen 2.758 N/A SER 284.A N HIS 213.A NE2 no hydrogen 3.368 N/A SER 284.A OG SER 212.A OG no hydrogen 2.878 N/A GLY 289.A N SER 286.A OG no hydrogen 3.060 N/A ILE 290.A N SER 286.A O no hydrogen 3.269 N/A ASP 291.A N LYS 287.A O no hydrogen 2.828 N/A LEU 292.A N GLU 288.A O no hydrogen 2.955 N/A LEU 293.A N GLY 289.A O no hydrogen 2.970 N/A GLU 294.A N ILE 290.A O no hydrogen 2.732 N/A SER 295.A N ASP 291.A O no hydrogen 2.794 N/A SER 295.A OG ASP 291.A O no hydrogen 2.835 N/A MET 296.A N LEU 292.A O no hydrogen 3.072 N/A LEU 297.A N LEU 293.A O no hydrogen 3.322 N/A LEU 297.A N GLU 294.A O no hydrogen 3.259 N/A ASN 300.A ND2 ASP 254.A OD2 no hydrogen 3.181 N/A LYS 303.A N ASN 300.A O no hydrogen 3.092 N/A LYS 303.A N ASN 300.A OD1 no hydrogen 2.891 N/A ARG 304.A N ASN 300.A O no hydrogen 3.013 N/A ARG 304.A NE ARG 298.A O no hydrogen 2.715 N/A ARG 304.A NH1 GLU 182.A OE2 no hydrogen 2.743 N/A ARG 304.A NH1 SER 193.A O no hydrogen 3.019 N/A ARG 304.A NH2 GLU 182.A OE1 no hydrogen 2.711 N/A ARG 304.A NH2 GLU 182.A OE2 no hydrogen 3.377 N/A ARG 304.A NH2 ARG 298.A O no hydrogen 3.118 N/A ARG 304.A NH2 PHE 299.A O no hydrogen 3.380 N/A ILE 305.A N SER 295.A O no hydrogen 3.340 N/A LYS 309.A N THR 306.A OG1 no hydrogen 3.132 N/A ALA 310.A N THR 306.A O no hydrogen 3.008 N/A LEU 311.A N ILE 307.A O no hydrogen 2.936 N/A SER 312.A N ASP 308.A O no hydrogen 3.112 N/A SER 312.A OG ASP 308.A O no hydrogen 3.190 N/A SER 312.A OG LYS 309.A O no hydrogen 3.391 N/A HIS 313.A N ALA 310.A O no hydrogen 3.285 N/A HIS 313.A NE2 ASP 291.A OD2 no hydrogen 2.625 N/A TYR 315.A N HIS 313.A ND1 no hydrogen 3.206 N/A TYR 315.A OH GLU 117.A OE2 no hydrogen 2.680 N/A LEU 316.A N HIS 313.A O no hydrogen 2.948 N/A LYS 317.A N PRO 314.A O no hydrogen 3.082 N/A ASP 318.A N.A ASP 318.A OD2.A no hydrogen 2.359 N/A VAL 319.A N LEU 316.A O no hydrogen 2.921 N/A ARG 320.A N LEU 316.A O no hydrogen 2.781 N/A ARG 320.A NE GLU 325.A OE2 no hydrogen 2.657 N/A ARG 320.A NH2 GLU 325.A OE1 no hydrogen 2.891 N/A ARG 320.A NH2 GLU 325.A OE2 no hydrogen 3.277 N/A LYS 321.A N TYR 125.A OH no hydrogen 2.989 N/A LEU 324.A N LYS 321.A O no hydrogen 2.761 N/A GLU 325.A N GLU 322.A O no hydrogen 3.153 N/A ILE 332.A N SER 137.A O no hydrogen 3.361 N/A MET 340.A N ASP 337.A O no hydrogen 3.194 N/A SER 343.A N GLN 346.A OE1 no hydrogen 2.659 N/A SER 343.A OG GLN 346.A OE1 no hydrogen 3.276 N/A GLN 346.A N SER 343.A OG no hydrogen 2.866 N/A LEU 347.A N SER 343.A O no hydrogen 2.743 N/A ARG 348.A N GLU 344.A O no hydrogen 2.785 N/A ARG 348.A NE GLU 344.A OE2 no hydrogen 3.389 N/A ARG 348.A NH1 PHE 91.A O no hydrogen 3.043 N/A ARG 348.A NH2 PHE 91.A O no hydrogen 3.401 N/A ARG 348.A NH2 GLU 344.A OE2 no hydrogen 3.182 N/A TYR 349.A N THR 345.A O no hydrogen 3.068 N/A ILE 350.A N GLN 346.A O no hydrogen 3.207 N/A PHE 351.A N LEU 347.A O no hydrogen 3.117 N/A LEU 352.A N ARG 348.A O no hydrogen 3.114 N/A LYS 353.A N TYR 349.A O no hydrogen 2.968 N/A LYS 353.A NZ GLN 356.A OE1 no hydrogen 2.644 N/A GLU 354.A N ILE 350.A O no hydrogen 3.130 N/A ILE 355.A N PHE 351.A O no hydrogen 2.859 N/A GLN 356.A N LEU 352.A O no hydrogen 2.649 N/A GLN 356.A NE2 LEU 362.A O no hydrogen 3.143 N/A SER 357.A N LYS 353.A O no hydrogen 2.892 N/A SER 357.A N GLU 354.A O no hydrogen 3.060 N/A SER 357.A OG GLU 354.A O no hydrogen 2.765 N/A PHE 358.A N ILE 355.A O no hydrogen 3.241 N/A HIS 359.A N ILE 355.A O no hydrogen 2.990 N/A HIS 359.A NE2 LEU 82.A O no hydrogen 2.917 N/A LEU 362.A N HIS 359.A O no hydrogen 3.099 N/A LEU 368.A N PRO 365.A O no hydrogen 3.103 N/A ASN 369.A ND2 ALA 366.A O no hydrogen 3.574 N/A