Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 4yt2_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): ASN 1.A N GLY 44.A O no hydrogen 2.656 N/A MET 2.A N HIS 45.A ND1 no hydrogen 3.193 N/A LYS 3.A N GLU 84.A OE2 no hydrogen 2.808 N/A VAL 4.A N ASP 46.A O no hydrogen 2.966 N/A SER 5.A N ILE 85.A O no hydrogen 2.944 N/A SER 5.A OG ALA 79.A O no hydrogen 2.669 N/A VAL 6.A N VAL 48.A O no hydrogen 2.782 N/A TYR 7.A N VAL 87.A O no hydrogen 2.812 N/A TYR 7.A OH HIS 86.A ND1 no hydrogen 2.729 N/A GLY 8.A N ALA 50.A O no hydrogen 2.940 N/A ALA 9.A N GLU 51.A OE1 no hydrogen 2.866 N/A GLN 12.A NE2 ALA 9.A O no hydrogen 3.073 N/A GLN 12.A NE2 GLY 10.A O no hydrogen 3.149 N/A GLN 12.A NE2 TYR 31.A O no hydrogen 2.866 N/A ASN 13.A ND2 ASN 17.A OD1 no hydrogen 3.662 N/A LEU 14.A N ASN 11.A OD1 no hydrogen 3.013 N/A TYR 15.A N ASN 11.A O no hydrogen 3.132 N/A ILE 16.A N GLN 12.A O no hydrogen 2.784 N/A ASN 17.A N ASN 13.A O no hydrogen 2.840 N/A LYS 18.A N ASN 13.A O no hydrogen 2.942 N/A LEU 19.A N LEU 14.A O no hydrogen 2.840 N/A ASN 20.A ND2 GLU 23.A OE1 no hydrogen 2.929 N/A LEU 21.A N TYR 15.A O no hydrogen 2.942 N/A GLU 23.A N ASN 20.A O no hydrogen 3.158 N/A LYS 24.A N ASN 20.A O no hydrogen 2.930 N/A PHE 25.A N LEU 21.A O no hydrogen 2.851 N/A GLY 26.A N LEU 21.A O no hydrogen 2.759 N/A TYR 31.A N GLN 12.A OE1 no hydrogen 2.889 N/A TYR 31.A OH GLY 26.A O no hydrogen 2.892 N/A GLY 32.A N PRO 150.A O no hydrogen 2.874 N/A SER 34.A N ALA 9.A O no hydrogen 2.944 N/A SER 34.A OG ALA 9.A O no hydrogen 2.912 N/A SER 34.A OG TYR 31.A O no hydrogen 3.504 N/A ARG 35.A NE PRO 30.A O no hydrogen 2.778 N/A ARG 35.A NH2 PRO 30.A O no hydrogen 3.189 N/A MET 36.A N GLY 32.A O no hydrogen 2.922 N/A ALA 37.A N GLY 33.A O no hydrogen 2.959 N/A ILE 38.A N SER 34.A O no hydrogen 2.965 N/A GLU 39.A N ARG 35.A O no hydrogen 2.903 N/A PHE 40.A N MET 36.A O no hydrogen 2.928 N/A ALA 41.A N ALA 37.A O no hydrogen 2.902 N/A GLU 42.A N ILE 38.A O no hydrogen 2.814 N/A ALA 43.A N GLU 39.A O no hydrogen 3.138 N/A ALA 43.A N PHE 40.A O no hydrogen 3.304 N/A GLY 44.A N ALA 41.A O no hydrogen 3.045 N/A HIS 45.A N PHE 40.A O no hydrogen 3.221 N/A HIS 45.A NE2 SER 185.A OG no hydrogen 2.648 N/A ASP 46.A N MET 2.A O no hydrogen 2.931 N/A VAL 48.A N VAL 4.A O no hydrogen 2.904 N/A LEU 49.A N LYS 71.A O no hydrogen 2.907 N/A ALA 50.A N VAL 6.A O no hydrogen 2.811 N/A GLU 51.A N VAL 73.A O no hydrogen 2.879 N/A ASN 53.A N GLU 51.A OE2 no hydrogen 2.861 N/A ASN 55.A N ASN 53.A OD1 no hydrogen 3.106 N/A ILE 56.A N ASN 53.A O no hydrogen 3.152 N/A SER 58.A OG ASP 60.A OD1 no hydrogen 2.466 N/A LEU 61.A N SER 58.A O no hydrogen 3.060 N/A TRP 62.A N SER 58.A O no hydrogen 3.148 N/A TRP 62.A NE1 LYS 54.A O no hydrogen 2.811 N/A LYS 63.A N ASP 59.A O no hydrogen 2.924 N/A LYS 64.A N ASP 60.A O no hydrogen 3.244 N/A VAL 65.A N LEU 61.A O no hydrogen 3.107 N/A GLU 66.A N TRP 62.A O no hydrogen 2.978 N/A ASP 67.A N LYS 63.A O no hydrogen 2.831 N/A ALA 68.A N LYS 64.A O no hydrogen 3.205 N/A ALA 68.A N VAL 65.A O no hydrogen 3.211 N/A GLY 69.A N GLU 66.A O no hydrogen 2.921 N/A LYS 71.A N VAL 47.A O no hydrogen 2.986 N/A LYS 71.A NZ GLU 78.A OE2 no hydrogen 3.222 N/A VAL 73.A N LEU 49.A O no hydrogen 2.962 N/A VAL 77.A N ASP 75.A OD1 no hydrogen 2.902 N/A GLU 78.A N ASP 75.A O no hydrogen 2.992 N/A ALA 79.A N ASP 75.A O no hydrogen 3.421 N/A ALA 80.A N ASP 76.A O no hydrogen 2.807 N/A LYS 81.A N VAL 77.A O no hydrogen 3.136 N/A HIS 82.A N ALA 79.A O no hydrogen 3.139 N/A HIS 82.A NE2 ASP 46.A O no hydrogen 2.763 N/A GLU 84.A N LYS 3.A O no hydrogen 2.734 N/A ILE 85.A N LYS 3.A O no hydrogen 3.350 N/A HIS 86.A N VAL 112.A O no hydrogen 2.848 N/A HIS 86.A ND1 TYR 7.A OH no hydrogen 2.729 N/A HIS 86.A NE2 GLY 83.A O no hydrogen 2.708 N/A VAL 87.A N SER 5.A O no hydrogen 2.803 N/A LEU 88.A N CYS 114.A O no hydrogen 2.845 N/A PHE 89.A N TYR 7.A O no hydrogen 2.704 N/A THR 90.A OG1 THR 96.A OG1 no hydrogen 2.815 N/A GLY 93.A N PRO 91.A O no hydrogen 2.645 N/A THR 96.A OG1 THR 90.A OG1 no hydrogen 2.815 N/A ARG 98.A N LYS 94.A O no hydrogen 3.170 N/A ILE 99.A N ALA 95.A O no hydrogen 2.911 N/A ALA 100.A N THR 96.A O no hydrogen 3.038 N/A LYS 101.A N PHE 97.A O no hydrogen 2.990 N/A LYS 101.A NZ GLU 342.A OE2 no hydrogen 3.158 N/A THR 102.A N ARG 98.A O no hydrogen 2.869 N/A THR 102.A OG1 ARG 98.A O no hydrogen 2.739 N/A ILE 103.A N ILE 99.A O no hydrogen 2.950 N/A ILE 104.A N ALA 100.A O no hydrogen 2.992 N/A HIS 106.A N ILE 103.A O no hydrogen 2.804 N/A VAL 107.A N ILE 103.A O no hydrogen 3.033 N/A ASN 110.A N ASP 138.A OD2 no hydrogen 2.704 N/A ALA 111.A N PRO 108.A O no hydrogen 3.209 N/A VAL 112.A N GLU 84.A O no hydrogen 3.002 N/A ILE 113.A N GLY 140.A O no hydrogen 2.917 N/A CYS 114.A N HIS 86.A O no hydrogen 2.675 N/A ASN 115.A N SER 142.A O no hydrogen 3.229 N/A THR 116.A N LEU 88.A O no hydrogen 3.197 N/A THR 116.A OG1 LEU 88.A O no hydrogen 2.773 N/A CYS 117.A SG THR 116.A OG1 no hydrogen 3.741 N/A VAL 119.A N CYS 117.A O no hydrogen 3.113 N/A VAL 122.A N SER 120.A OG no hydrogen 3.217 N/A LEU 124.A N SER 120.A O no hydrogen 2.973 N/A TYR 125.A N PRO 121.A O no hydrogen 2.801 N/A TYR 126.A N VAL 122.A O no hydrogen 2.927 N/A SER 127.A N VAL 123.A O no hydrogen 2.866 N/A SER 127.A OG LEU 124.A O no hydrogen 2.685 N/A LEU 128.A N LEU 124.A O no hydrogen 3.225 N/A LEU 128.A N TYR 125.A O no hydrogen 3.034 N/A GLU 129.A N TYR 126.A O no hydrogen 3.332 N/A ILE 131.A N LEU 128.A O no hydrogen 2.888 N/A LEU 132.A N LEU 128.A O no hydrogen 2.945 N/A ARG 133.A N GLU 129.A O no hydrogen 2.932 N/A THR 134.A N ILE 131.A O no hydrogen 3.464 N/A THR 134.A OG1 PRO 130.A O no hydrogen 2.936 N/A THR 134.A OG1 ILE 131.A O no hydrogen 3.549 N/A LYS 135.A N THR 134.A OG1 no hydrogen 2.680 N/A LYS 135.A NZ GLU 105.A OE1 no hydrogen 2.760 N/A ARG 136.A N ILE 131.A O no hydrogen 2.955 N/A ARG 136.A NE ASP 138.A OD1 no hydrogen 3.024 N/A ARG 136.A NH1 VAL 107.A O no hydrogen 2.882 N/A ARG 136.A NH2 VAL 107.A O no hydrogen 3.063 N/A ARG 136.A NH2 PRO 108.A O no hydrogen 2.973 N/A ARG 136.A NH2 ASP 138.A OD2 no hydrogen 2.751 N/A VAL 139.A N ARG 136.A O no hydrogen 3.154 N/A GLY 140.A N ALA 111.A O no hydrogen 3.004 N/A ILE 141.A N LEU 170.A O no hydrogen 2.805 N/A SER 142.A N ILE 113.A O no hydrogen 2.874 N/A SER 142.A OG GLY 161.A O no hydrogen 2.828 N/A SER 143.A OG HIS 145.A NE2 no hydrogen 2.841 N/A MET 144.A N ASN 115.A O no hydrogen 2.912 N/A HIS 145.A N VAL 159.A O no hydrogen 2.900 N/A HIS 145.A ND1 ASP 203.A OD1 no hydrogen 2.787 N/A HIS 145.A NE2 SER 198.A OG no hydrogen 3.002 N/A THR 152.A N VAL 149.A O no hydrogen 3.031 N/A THR 152.A OG1 VAL 149.A O no hydrogen 2.675 N/A GLN 154.A NE2 PHE 25.A O no hydrogen 3.312 N/A HIS 155.A N THR 152.A O no hydrogen 3.084 N/A TYR 158.A N GLU 189.A O no hydrogen 2.854 N/A VAL 159.A N HIS 145.A O no hydrogen 2.913 N/A ILE 160.A N TYR 191.A O no hydrogen 2.782 N/A GLY 161.A N SER 143.A OG no hydrogen 2.985 N/A GLY 162.A N VAL 193.A O no hydrogen 2.784 N/A THR 164.A N LYS 168.A O no hydrogen 2.983 N/A THR 164.A OG1 ASP 166.A OD1 no hydrogen 2.514 N/A THR 165.A N ASP 196.A OD1 no hydrogen 2.809 N/A THR 165.A OG1 ASP 196.A OD2 no hydrogen 2.761 N/A GLY 167.A N THR 164.A O no hydrogen 2.878 N/A LYS 168.A N THR 164.A OG1 no hydrogen 2.843 N/A LYS 168.A NZ ASP 166.A OD1 no hydrogen 3.203 N/A LYS 168.A NZ ASP 166.A OD2 no hydrogen 2.847 N/A THR 172.A N GLN 175.A OE1 no hydrogen 2.809 N/A GLN 175.A N THR 172.A OG1 no hydrogen 2.980 N/A GLN 175.A NE2 ASN 110.A O no hydrogen 3.004 N/A GLN 175.A NE2 ASP 138.A O no hydrogen 3.051 N/A ILE 176.A N THR 172.A O no hydrogen 2.929 N/A LYS 177.A N GLU 173.A O no hydrogen 2.901 N/A LYS 178.A N GLU 174.A O no hydrogen 3.272 N/A LYS 178.A NZ GLU 84.A OE1 no hydrogen 2.601 N/A ALA 179.A N GLN 175.A O no hydrogen 3.268 N/A VAL 180.A N ILE 176.A O no hydrogen 2.969 N/A GLU 181.A N LYS 177.A O no hydrogen 2.924 N/A LEU 182.A N LYS 178.A O no hydrogen 2.870 N/A ALA 183.A N ALA 179.A O no hydrogen 2.981 N/A LYS 184.A N VAL 180.A O no hydrogen 2.823 N/A SER 185.A N GLU 181.A O no hydrogen 2.748 N/A SER 185.A OG HIS 45.A NE2 no hydrogen 2.648 N/A SER 185.A OG GLU 181.A O no hydrogen 2.979 N/A SER 185.A OG LEU 182.A O no hydrogen 3.134 N/A ALA 186.A N ALA 183.A O no hydrogen 3.196 N/A GLY 187.A N LYS 184.A O no hydrogen 3.045 N/A LYS 188.A N ALA 183.A O no hydrogen 3.318 N/A LYS 188.A NZ HIS 155.A O no hydrogen 3.034 N/A GLU 189.A N GLY 156.A O no hydrogen 2.985 N/A TYR 191.A N TYR 158.A O no hydrogen 2.946 N/A VAL 193.A N ILE 160.A O no hydrogen 2.920 N/A ALA 195.A N GLY 162.A O no hydrogen 2.934 N/A VAL 197.A N PRO 194.A O no hydrogen 2.898 N/A SER 198.A N PRO 194.A O no hydrogen 3.023 N/A SER 198.A OG HIS 145.A NE2 no hydrogen 3.002 N/A SER 198.A OG ALA 195.A O no hydrogen 3.410 N/A VAL 200.A N VAL 197.A O no hydrogen 3.008 N/A VAL 201.A N VAL 197.A O no hydrogen 3.315 N/A VAL 201.A N SER 198.A O no hydrogen 3.252 N/A ALA 202.A N SER 198.A O no hydrogen 3.067 N/A ASP 203.A N SER 199.A O no hydrogen 3.002 N/A SER 206.A N ASP 203.A O no hydrogen 2.830 N/A SER 206.A OG ASP 203.A O no hydrogen 2.925 N/A LEU 207.A N MET 204.A O no hydrogen 3.178 N/A THR 209.A N GLY 205.A O no hydrogen 3.004 N/A THR 209.A OG1 VAL 200.A O no hydrogen 2.771 N/A THR 209.A OG1 GLY 205.A O no hydrogen 3.248 N/A ALA 210.A N SER 206.A O no hydrogen 2.839 N/A VAL 211.A N LEU 207.A O no hydrogen 3.144 N/A ALA 212.A N VAL 208.A O no hydrogen 2.869 N/A LEU 213.A N THR 209.A O no hydrogen 2.874 N/A SER 214.A N ALA 210.A O no hydrogen 3.042 N/A SER 214.A OG VAL 211.A O no hydrogen 2.691 N/A GLY 215.A N VAL 211.A O no hydrogen 3.145 N/A VAL 216.A N ALA 212.A O no hydrogen 2.965 N/A LEU 217.A N LEU 213.A O no hydrogen 2.938 N/A ASP 218.A N SER 214.A O no hydrogen 2.949 N/A TYR 219.A N GLY 215.A O no hydrogen 3.058 N/A TYR 219.A OH GLN 237.A OE1 no hydrogen 2.472 N/A TYR 220.A N VAL 216.A O no hydrogen 2.952 N/A THR 221.A N LEU 217.A O no hydrogen 2.969 N/A THR 221.A OG1 LEU 217.A O no hydrogen 2.987 N/A VAL 222.A N ASP 218.A O no hydrogen 2.973 N/A GLY 223.A N TYR 219.A O no hydrogen 2.613 N/A ARG 224.A N TYR 220.A O no hydrogen 2.992 N/A ARG 224.A NH1 ALA 229.A O no hydrogen 2.783 N/A LYS 225.A N THR 221.A O no hydrogen 2.819 N/A ILE 226.A N VAL 222.A O no hydrogen 2.882 N/A ILE 227.A N VAL 222.A O no hydrogen 3.004 N/A ASN 228.A ND2 ARG 224.A O no hydrogen 2.855 N/A ALA 229.A N GLY 223.A O no hydrogen 2.794 N/A ILE 234.A N PRO 230.A O no hydrogen 3.151 N/A GLU 235.A N LYS 231.A O no hydrogen 2.928 N/A GLN 236.A N LYS 232.A O no hydrogen 2.781 N/A GLN 237.A N MET 233.A O no hydrogen 2.885 N/A VAL 238.A N ILE 234.A O no hydrogen 2.998 N/A ILE 239.A N GLU 235.A O no hydrogen 2.904 N/A MET 240.A N GLN 236.A O no hydrogen 2.966 N/A THR 241.A N GLN 237.A O no hydrogen 2.974 N/A THR 241.A OG1 GLN 237.A O no hydrogen 3.477 N/A LEU 242.A N VAL 238.A O no hydrogen 2.968 N/A GLN 243.A N ILE 239.A O no hydrogen 2.867 N/A GLN 243.A NE2 GLN 243.A O no hydrogen 3.176 N/A GLN 243.A NE2 SER 247.A OG no hydrogen 3.018 N/A THR 244.A N MET 240.A O no hydrogen 2.891 N/A THR 244.A OG1 MET 240.A O no hydrogen 2.832 N/A MET 245.A N THR 241.A O no hydrogen 3.043 N/A ALA 246.A N LEU 242.A O no hydrogen 2.998 N/A SER 247.A N GLN 243.A O no hydrogen 2.850 N/A SER 247.A OG GLN 243.A O no hydrogen 3.049 N/A LEU 248.A N THR 244.A O no hydrogen 2.889 N/A VAL 249.A N MET 245.A O no hydrogen 3.057 N/A GLU 250.A N ALA 246.A O no hydrogen 2.959 N/A THR 251.A N SER 247.A O no hydrogen 2.983 N/A THR 251.A OG1 SER 247.A O no hydrogen 3.420 N/A THR 251.A OG1 LEU 248.A O no hydrogen 3.449 N/A THR 251.A OG1 SER 252.A OG no hydrogen 2.869 N/A THR 251.A OG1 THR 308.A OG1 no hydrogen 2.666 N/A SER 252.A N LEU 248.A O no hydrogen 2.804 N/A SER 252.A OG THR 251.A OG1 no hydrogen 2.869 N/A GLY 253.A N VAL 249.A O no hydrogen 2.844 N/A GLU 255.A N GLU 255.A OE1 no hydrogen 2.734 N/A MET 257.A N GLY 253.A O no hydrogen 3.034 N/A VAL 258.A N ILE 254.A O no hydrogen 2.959 N/A LYS 259.A N GLU 255.A O no hydrogen 2.960 N/A LYS 259.A NZ GLU 301.A O no hydrogen 3.080 N/A LYS 259.A NZ ALA 303.A O no hydrogen 2.518 N/A ALA 260.A N GLY 256.A O no hydrogen 2.938 N/A LEU 261.A N MET 257.A O no hydrogen 3.014 N/A ASN 262.A N VAL 258.A O no hydrogen 2.917 N/A LEU 265.A N ASN 262.A OD1 no hydrogen 3.384 N/A LEU 266.A N ASN 262.A O no hydrogen 2.959 N/A ILE 267.A N PRO 263.A O no hydrogen 2.777 N/A ARG 268.A N GLU 264.A O no hydrogen 3.145 N/A ARG 268.A NE GLU 264.A OE2 no hydrogen 2.877 N/A SER 269.A N LEU 265.A O no hydrogen 3.168 N/A ALA 270.A N LEU 266.A O no hydrogen 2.895 N/A SER 271.A N ILE 267.A O no hydrogen 2.999 N/A SER 271.A OG ILE 267.A O no hydrogen 2.602 N/A SER 272.A N SER 269.A O no hydrogen 3.197 N/A SER 272.A OG ARG 268.A O no hydrogen 3.285 N/A MET 273.A N ALA 270.A O no hydrogen 2.956 N/A LYS 274.A N SER 271.A O no hydrogen 3.236 N/A LEU 275.A N GLN 279.A OE1 no hydrogen 2.969 N/A LEU 276.A N GLN 279.A OE1 no hydrogen 2.963 N/A GLN 279.A NE2 ASP 218.A OD1 no hydrogen 2.994 N/A GLN 279.A NE2 ASP 218.A OD2 no hydrogen 3.546 N/A GLN 279.A NE2 MET 273.A O no hydrogen 3.117 N/A ASP 283.A N GLN 279.A O no hydrogen 3.005 N/A ALA 284.A N LYS 280.A O no hydrogen 2.878 N/A ALA 285.A N ASP 281.A O no hydrogen 3.058 N/A LEU 286.A N LEU 282.A O no hydrogen 2.914 N/A GLU 287.A N ASP 283.A O no hydrogen 3.153 N/A ILE 288.A N ALA 284.A O no hydrogen 2.890 N/A LEU 289.A N ALA 285.A O no hydrogen 2.895 N/A GLN 290.A N LEU 286.A O no hydrogen 2.990 N/A ASN 291.A N ILE 288.A O no hydrogen 3.313 N/A ASN 291.A ND2 GLU 287.A O no hydrogen 3.189 N/A THR 295.A N ASP 293.A OD1 no hydrogen 2.787 N/A LEU 296.A N ASP 293.A OD2 no hydrogen 3.097 N/A LYS 297.A N ASP 293.A O no hydrogen 2.414 N/A ALA 298.A N GLU 294.A O no hydrogen 2.901 N/A GLU 299.A N THR 295.A O no hydrogen 3.111 N/A VAL 300.A N LEU 296.A O no hydrogen 3.344 N/A ALA 303.A N VAL 300.A O no hydrogen 2.993 N/A LYS 306.A N SER 252.A OG no hydrogen 2.903 N/A THR 308.A OG1 THR 251.A OG1 no hydrogen 2.666 N/A THR 308.A OG1 LYS 306.A O no hydrogen 2.819 N/A LEU 316.A N ALA 312.A O no hydrogen 2.743 N/A VAL 317.A N ALA 313.A O no hydrogen 2.851 N/A LYS 318.A N GLN 314.A O no hydrogen 3.034 N/A GLU 319.A N SER 315.A O no hydrogen 2.853 N/A ILE 320.A N LEU 316.A O no hydrogen 2.758 N/A LYS 321.A N VAL 317.A O no hydrogen 2.932 N/A THR 322.A N LYS 318.A O no hydrogen 3.065 N/A THR 322.A OG1 LYS 318.A O no hydrogen 3.491 N/A THR 322.A OG1 GLU 319.A O no hydrogen 2.845 N/A LEU 323.A N GLU 319.A O no hydrogen 2.957 N/A ILE 324.A N ILE 320.A O no hydrogen 2.874 N/A ALA 329.A N GLY 325.A O no hydrogen 2.967 N/A GLU 330.A N GLY 326.A O no hydrogen 2.908 N/A GLY 331.A N ALA 327.A O no hydrogen 3.056 N/A ALA 332.A N ALA 328.A O no hydrogen 2.993 N/A ILE 333.A N ALA 329.A O no hydrogen 2.906 N/A LYS 334.A N GLU 330.A O no hydrogen 2.802 N/A LYS 334.A NZ GLU 129.A OE1 no hydrogen 3.200 N/A ARG 335.A N GLY 331.A O no hydrogen 2.921 N/A SER 336.A N ALA 332.A O no hydrogen 3.095 N/A SER 336.A OG ALA 332.A O no hydrogen 2.673 N/A SER 336.A OG ILE 333.A O no hydrogen 3.244 N/A ALA 337.A N ILE 333.A O no hydrogen 2.945 N/A ARG 338.A N LYS 334.A O no hydrogen 2.908 N/A ARG 338.A NH1 TYR 126.A O no hydrogen 3.030 N/A LYS 339.A N ARG 335.A O no hydrogen 2.976 N/A LEU 340.A N SER 336.A O no hydrogen 3.285 N/A PHE 341.A N ALA 337.A O no hydrogen 2.899 N/A GLU 342.A N ARG 338.A O no hydrogen 2.814 N/A HIS 343.A N ARG 338.A O no hydrogen 2.979 N/A