Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 4zqr_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): THR 1.A N.B THR 1.A O.B no hydrogen 2.747 N/A THR 1.A OG1.B PRO 11.A O no hydrogen 2.663 N/A THR 1.A OG1.B VAL 14.A O no hydrogen 3.268 N/A THR 1.A OG1.B ALA 15.A O no hydrogen 3.433 N/A ASP 2.A OD1.B ASP 2.A OD2.B no hydrogen 2.196 N/A ASP 2.A OD2.B ASP 2.A OD1.B no hydrogen 2.196 N/A VAL 4.A N.A GLY 8.A O no hydrogen 3.030 N/A THR 6.A OG1.A VAL 4.A O.B no hydrogen 3.363 N/A GLY 7.A N VAL 4.A O.A no hydrogen 2.822 N/A HIS 12.A N ASP 10.A OD1 no hydrogen 2.901 N/A LYS 13.A N ASP 10.A O no hydrogen 3.169 N/A LEU 19.A N THR 204.A OG1 no hydrogen 2.788 N/A THR 20.A N ASP 23.A OD2 no hydrogen 2.801 N/A PHE 21.A N THR 20.A OG1 no hydrogen 2.680 N/A ASP 23.A N THR 20.A O no hydrogen 2.949 N/A VAL 24.A N PHE 21.A O no hydrogen 3.106 N/A LEU 25.A N VAL 331.A O no hydrogen 2.972 N/A LEU 27.A N GLN 329.A O no hydrogen 2.937 N/A ALA 29.A N TYR 316.A O no hydrogen 2.850 N/A SER 31.A OG VAL 33.A O no hydrogen 3.132 N/A SER 31.A OG GLY 315.A O no hydrogen 2.675 N/A VAL 33.A N SER 31.A OG no hydrogen 3.008 N/A VAL 34.A N THR 37.A OG1 no hydrogen 3.277 N/A THR 37.A N VAL 34.A O no hydrogen 2.865 N/A THR 37.A OG1 VAL 34.A O no hydrogen 3.289 N/A ALA 38.A N VAL 34.A O no hydrogen 3.254 N/A ALA 38.A N PRO 35.A O no hydrogen 3.405 N/A ASP 39.A N PRO 320.A O no hydrogen 2.879 N/A THR 40.A OG1 LYS 51.A O no hydrogen 2.809 N/A SER 41.A N ASP 39.A OD1 no hydrogen 2.919 N/A SER 41.A OG ASP 39.A OD1 no hydrogen 2.897 N/A SER 41.A OG ASP 39.A OD2 no hydrogen 3.513 N/A SER 42.A N LEU 50.A O no hydrogen 2.990 N/A SER 42.A OG SER 241.A O no hydrogen 2.606 N/A GLN 43.A NE2 THR 45.A O no hydrogen 3.053 N/A LEU 44.A N ILE 48.A O no hydrogen 2.775 N/A THR 45.A N ILE 48.A O no hydrogen 3.227 N/A THR 45.A OG1 GLU 157.A OE1 no hydrogen 2.694 N/A LYS 46.A N ASP 178.A O no hydrogen 2.991 N/A LYS 47.A N GLU 157.A OE1 no hydrogen 2.975 N/A ILE 48.A N THR 45.A OG1 no hydrogen 3.086 N/A ARG 49.A NE SER 41.A OG no hydrogen 3.121 N/A ARG 49.A NH1 GLN 43.A OE1 no hydrogen 2.851 N/A ARG 49.A NH1 GLU 323.A OE2 no hydrogen 3.102 N/A ARG 49.A NH2 SER 41.A OG no hydrogen 3.172 N/A ARG 49.A NH2 GLU 323.A OE1 no hydrogen 3.187 N/A ARG 49.A NH2 GLU 323.A OE2 no hydrogen 3.285 N/A LEU 50.A N SER 42.A O no hydrogen 2.843 N/A VAL 52.A N GLY 75.A O no hydrogen 2.959 N/A LEU 54.A N VAL 52.A O no hydrogen 2.856 N/A VAL 55.A N.A ALA 243.A O no hydrogen 2.927 N/A VAL 55.A N.B ALA 243.A O no hydrogen 2.932 N/A SER 56.A N MET 77.A O no hydrogen 3.036 N/A SER 56.A OG THR 63.A OG1 no hydrogen 2.744 N/A SER 57.A N LEU 245.A O no hydrogen 2.998 N/A VAL 62.A N MET 59.A O.A no hydrogen 2.995 N/A VAL 62.A N MET 59.A O.B no hydrogen 3.006 N/A THR 63.A N MET 59.A O.A no hydrogen 3.044 N/A THR 63.A N MET 59.A O.B no hydrogen 3.044 N/A THR 63.A OG1 SER 56.A OG no hydrogen 2.744 N/A THR 63.A OG1 SER 57.A O no hydrogen 2.657 N/A ALA 68.A N GLU 64.A O no hydrogen 2.979 N/A ILE 69.A N SER 65.A O no hydrogen 2.794 N/A ALA 70.A N ARG 66.A O.A no hydrogen 3.050 N/A ALA 70.A N ARG 66.A O.B no hydrogen 3.024 N/A MET 71.A N MET 67.A O no hydrogen 2.800 N/A ALA 72.A N ALA 68.A O no hydrogen 3.070 N/A ARG 73.A N ILE 69.A O no hydrogen 3.024 N/A ALA 74.A N ALA 70.A O no hydrogen 3.033 N/A ALA 74.A N MET 71.A O no hydrogen 3.108 N/A GLY 75.A N ALA 72.A O no hydrogen 3.042 N/A GLY 76.A N MET 71.A O no hydrogen 2.869 N/A MET 77.A N LEU 54.A O no hydrogen 3.265 N/A VAL 79.A N SER 56.A O no hydrogen 3.328 N/A LEU 80.A N GLY 105.A O no hydrogen 2.906 N/A HIS 81.A N THR 63.A O no hydrogen 3.369 N/A HIS 81.A NE2 GLU 64.A OE2 no hydrogen 2.735 N/A ARG 82.A NE ASP 132.A OD2 no hydrogen 2.974 N/A ARG 82.A NH2 ASP 132.A O no hydrogen 3.048 N/A ASN 83.A N HIS 81.A ND1 no hydrogen 2.964 N/A ASN 83.A ND2 ASP 60.A OD2 no hydrogen 2.882 N/A ASN 83.A ND2 ALA 278.A O no hydrogen 3.122 N/A GLU 88.A N PRO 85.A O no hydrogen 3.077 N/A GLN 89.A N PRO 85.A O no hydrogen 3.127 N/A GLN 89.A NE2 LEU 80.A O no hydrogen 3.316 N/A GLN 89.A NE2 ALA 107.A O no hydrogen 3.006 N/A ALA 90.A N VAL 86.A O no hydrogen 2.990 N/A GLY 91.A N ALA 87.A O no hydrogen 3.025 N/A GLN 92.A N GLU 88.A O no hydrogen 2.975 N/A VAL 93.A N GLN 89.A O no hydrogen 3.107 N/A GLU 94.A N ALA 90.A O no hydrogen 3.059 N/A MET 95.A N GLY 91.A O no hydrogen 2.936 N/A VAL 96.A N GLN 92.A O no hydrogen 3.057 N/A LYS 97.A N VAL 93.A O no hydrogen 2.923 N/A LYS 97.A NZ LEU 102.A O no hydrogen 2.839 N/A LYS 97.A NZ ASP 127.A OD1 no hydrogen 3.406 N/A LYS 97.A NZ ASP 127.A OD2 no hydrogen 2.618 N/A ARG 98.A N GLU 94.A O no hydrogen 3.093 N/A SER 99.A N VAL 96.A O no hydrogen 3.055 N/A SER 99.A OG MET 95.A O no hydrogen 2.935 N/A GLY 101.A N LYS 97.A O no hydrogen 3.015 N/A VAL 104.A N ASP 127.A OD2 no hydrogen 3.003 N/A GLY 105.A N GLY 78.A O no hydrogen 3.073 N/A ALA 106.A N VAL 128.A O no hydrogen 2.986 N/A ALA 107.A N LEU 80.A O no hydrogen 2.992 N/A VAL 108.A N VAL 130.A O no hydrogen 2.896 N/A TRP 115.A N GLY 111.A O no hydrogen 2.899 N/A VAL 116.A N GLY 112.A O no hydrogen 3.067 N/A ARG 117.A N ASP 113.A O no hydrogen 2.994 N/A ARG 117.A NH1 LEU 84.A O no hydrogen 3.047 N/A ARG 117.A NH1 GLN 89.A OE1 no hydrogen 2.829 N/A ARG 117.A NH2 LEU 84.A O no hydrogen 3.020 N/A ALA 118.A N ALA 114.A O no hydrogen 2.858 N/A MET 119.A N TRP 115.A O no hydrogen 2.969 N/A MET 120.A N.A VAL 116.A O no hydrogen 3.049 N/A MET 120.A N.B VAL 116.A O no hydrogen 3.065 N/A LEU 121.A N ARG 117.A O no hydrogen 2.911 N/A VAL 122.A N ALA 118.A O no hydrogen 2.908 N/A ASP 123.A N MET 119.A O no hydrogen 2.970 N/A ALA 124.A N MET 120.A O.A no hydrogen 2.909 N/A ALA 124.A N MET 120.A O.B no hydrogen 3.073 N/A GLY 125.A N VAL 122.A O no hydrogen 2.917 N/A VAL 126.A N LEU 121.A O no hydrogen 3.082 N/A ASP 127.A N VAL 104.A O no hydrogen 2.949 N/A VAL 128.A N VAL 104.A O no hydrogen 3.323 N/A LEU 129.A N GLU 157.A O no hydrogen 2.821 N/A VAL 130.A N ALA 106.A O no hydrogen 2.860 N/A VAL 131.A N VAL 159.A O no hydrogen 2.763 N/A ASP 132.A N VAL 108.A O no hydrogen 2.896 N/A THR 133.A N GLY 161.A O no hydrogen 3.068 N/A THR 133.A OG1 GLY 161.A O no hydrogen 2.843 N/A ALA 136.A N ASN 162.A O no hydrogen 3.071 N/A ASN 138.A N HIS 135.A O no hydrogen 3.121 N/A LEU 140.A N ASN 138.A OD1 no hydrogen 2.975 N/A VAL 141.A N ASN 138.A O no hydrogen 2.975 N/A LEU 142.A N ASN 138.A O no hydrogen 3.390 N/A ASP 143.A N ARG 139.A O no hydrogen 3.147 N/A MET 144.A N LEU 140.A O no hydrogen 3.154 N/A VAL 145.A N VAL 141.A O no hydrogen 3.010 N/A GLY 146.A N LEU 142.A O no hydrogen 2.954 N/A LYS 147.A N.A ASP 143.A O no hydrogen 2.911 N/A LYS 147.A N.B ASP 143.A O no hydrogen 2.911 N/A LYS 147.A NZ.A GLU 151.A OE2 no hydrogen 3.225 N/A LEU 148.A N MET 144.A O no hydrogen 2.978 N/A LYS 149.A N VAL 145.A O no hydrogen 2.963 N/A LYS 149.A NZ GLY 153.A O no hydrogen 2.994 N/A LYS 149.A NZ VAL 156.A O.A no hydrogen 3.469 N/A LYS 149.A NZ ASP 178.A OD1 no hydrogen 3.394 N/A LYS 149.A NZ ASP 178.A OD2 no hydrogen 2.607 N/A SER 150.A N GLY 146.A O no hydrogen 2.981 N/A SER 150.A OG GLY 146.A O no hydrogen 3.186 N/A GLU 151.A N LYS 147.A O.A no hydrogen 2.947 N/A GLU 151.A N LYS 147.A O.B no hydrogen 2.993 N/A GLU 151.A N LEU 148.A O no hydrogen 3.231 N/A VAL 152.A N LEU 148.A O no hydrogen 2.887 N/A GLY 153.A N LYS 149.A O no hydrogen 3.130 N/A ASP 154.A N ASP 154.A OD1 no hydrogen 2.593 N/A ARG 155.A N VAL 152.A O no hydrogen 3.045 N/A ARG 155.A NH1 GLU 151.A O no hydrogen 3.503 N/A VAL 156.A N.A VAL 152.A O no hydrogen 2.954 N/A VAL 156.A N.B VAL 152.A O no hydrogen 2.960 N/A GLU 157.A N ASP 127.A O no hydrogen 3.144 N/A VAL 158.A N ASP 178.A OD2 no hydrogen 2.858 N/A VAL 159.A N LEU 129.A O no hydrogen 2.790 N/A GLY 160.A N ALA 179.A O no hydrogen 3.191 N/A GLY 161.A N VAL 131.A O no hydrogen 3.180 N/A ASN 162.A N THR 133.A O no hydrogen 2.883 N/A ASN 162.A ND2 GLY 183.A O no hydrogen 2.873 N/A ASN 162.A ND2 ASP 223.A OD2 no hydrogen 2.993 N/A VAL 163.A N LYS 181.A O no hydrogen 3.074 N/A THR 165.A OG1 SER 167.A OG no hydrogen 3.284 N/A ARG 166.A NE GLU 208.A OE1 no hydrogen 3.097 N/A ARG 166.A NH2 GLU 208.A OE1 no hydrogen 3.526 N/A ARG 166.A NH2 GLU 208.A OE2 no hydrogen 2.935 N/A SER 167.A OG THR 165.A OG1 no hydrogen 3.284 N/A ALA 168.A N THR 165.A OG1 no hydrogen 3.032 N/A ALA 169.A N THR 165.A O no hydrogen 3.108 N/A ALA 170.A N ARG 166.A O no hydrogen 2.874 N/A ALA 171.A N SER 167.A O no hydrogen 2.980 N/A LEU 172.A N ALA 168.A O no hydrogen 3.105 N/A VAL 173.A N ALA 169.A O no hydrogen 2.931 N/A ASP 174.A N ALA 170.A O no hydrogen 2.932 N/A ALA 175.A N ALA 171.A O no hydrogen 2.989 N/A GLY 176.A N VAL 173.A O no hydrogen 3.064 N/A ALA 177.A N LEU 172.A O no hydrogen 3.028 N/A ASP 178.A N VAL 158.A O no hydrogen 2.767 N/A VAL 180.A N PRO 219.A O no hydrogen 3.043 N/A LYS 181.A N GLY 160.A O no hydrogen 2.878 N/A LYS 181.A NZ ASN 162.A OD1 no hydrogen 2.670 N/A LYS 181.A NZ ASP 223.A OD2 no hydrogen 2.880 N/A VAL 182.A N ILE 221.A O no hydrogen 2.834 N/A GLY 183.A N VAL 163.A O no hydrogen 2.913 N/A CYS 190.A N GLY 187.A O no hydrogen 3.009 N/A CYS 190.A SG THR 192.A OG1 no hydrogen 3.298 N/A CYS 190.A SG GLU 287.A O no hydrogen 3.662 N/A THR 191.A N GLU 287.A O no hydrogen 2.889 N/A THR 192.A OG1 GLU 287.A OE1 no hydrogen 2.626 N/A ARG 193.A NE.A VAL 184.A O no hydrogen 2.985 N/A ARG 193.A NH2.A VAL 184.A O no hydrogen 3.354 N/A VAL 194.A N THR 191.A O no hydrogen 2.863 N/A VAL 195.A N THR 191.A O no hydrogen 2.783 N/A ALA 196.A N THR 192.A O no hydrogen 2.906 N/A GLN 202.A NE2 VAL 182.A O no hydrogen 2.985 N/A THR 204.A N LEU 19.A O no hydrogen 3.091 N/A ALA 205.A N PRO 201.A O no hydrogen 2.962 N/A ILE 206.A N GLN 202.A O no hydrogen 2.995 N/A LEU 207.A N ILE 203.A O no hydrogen 2.915 N/A GLU 208.A N THR 204.A O no hydrogen 2.904 N/A ALA 209.A N ALA 205.A O no hydrogen 2.947 N/A VAL 210.A N ILE 206.A O no hydrogen 2.794 N/A ALA 211.A N LEU 207.A O no hydrogen 3.096 N/A ALA 212.A N ALA 209.A O no hydrogen 3.060 N/A CYS 213.A N ALA 209.A O no hydrogen 2.921 N/A CYS 213.A SG ALA 209.A O no hydrogen 3.394 N/A ARG 214.A N VAL 210.A O no hydrogen 2.858 N/A ARG 214.A NH1 GLN 326.A OE1 no hydrogen 3.537 N/A ALA 216.A N CYS 213.A O no hydrogen 2.967 N/A GLY 217.A N ARG 214.A O no hydrogen 2.993 N/A VAL 218.A N CYS 213.A O no hydrogen 2.947 N/A ILE 221.A N VAL 180.A O no hydrogen 2.853 N/A ALA 222.A N THR 242.A O no hydrogen 2.839 N/A ASP 223.A N VAL 182.A O no hydrogen 2.836 N/A GLN 227.A N ASP 231.A OD2 no hydrogen 2.868 N/A GLN 227.A NE2 SER 247.A OG no hydrogen 3.053 N/A TYR 228.A N ASP 231.A OD2 no hydrogen 3.149 N/A ASP 231.A N TYR 228.A O no hydrogen 2.870 N/A ILE 232.A N SER 229.A O no hydrogen 3.131 N/A ALA 233.A N SER 229.A O no hydrogen 3.424 N/A LYS 234.A N GLY 230.A O no hydrogen 3.046 N/A LYS 234.A NZ PHE 21.A O no hydrogen 2.941 N/A LYS 234.A NZ VAL 24.A O no hydrogen 2.812 N/A ALA 235.A N ASP 231.A O no hydrogen 2.853 N/A LEU 236.A N ILE 232.A O no hydrogen 3.061 N/A ALA 237.A N ALA 233.A O no hydrogen 2.894 N/A ALA 238.A N LYS 234.A O no hydrogen 2.896 N/A GLY 239.A N LEU 236.A O no hydrogen 2.834 N/A ALA 240.A N ALA 235.A O no hydrogen 3.186 N/A SER 241.A N VAL 220.A O no hydrogen 2.806 N/A THR 242.A N VAL 220.A O no hydrogen 3.387 N/A ALA 243.A N PRO 53.A O no hydrogen 3.018 N/A MET 244.A N ALA 222.A O no hydrogen 2.796 N/A LEU 245.A N VAL 55.A O.A no hydrogen 2.908 N/A LEU 245.A N VAL 55.A O.B no hydrogen 2.945 N/A LEU 249.A N GLY 246.A O no hydrogen 2.967 N/A ALA 250.A N GLY 246.A O no hydrogen 2.847 N/A THR 252.A N LEU 249.A O no hydrogen 3.052 N/A THR 252.A OG1 LEU 249.A O no hydrogen 2.736 N/A ALA 253.A N GLY 297.A O no hydrogen 2.889 N/A ALA 255.A N THR 252.A O no hydrogen 3.171 N/A ILE 260.A N TYR 267.A O no hydrogen 2.644 N/A VAL 262.A N LYS 265.A O no hydrogen 3.153 N/A LYS 265.A N VAL 262.A O no hydrogen 2.975 N/A TYR 267.A N ILE 260.A O no hydrogen 2.784 N/A LYS 268.A N VAL 293.A O no hydrogen 2.896 N/A LYS 268.A NZ THR 252.A O no hydrogen 3.124 N/A LYS 268.A NZ ALA 255.A O no hydrogen 2.863 N/A TYR 270.A N GLY 291.A O no hydrogen 2.873 N/A ARG 271.A N THR 61.A OG1 no hydrogen 3.301 N/A ARG 271.A NE ASP 60.A OD1 no hydrogen 3.046 N/A ARG 271.A NH1 ASP 60.A OD2 no hydrogen 2.660 N/A GLY 272.A N ILE 289.A O no hydrogen 2.996 N/A SER 275.A N GLY 272.A O no hydrogen 3.102 N/A SER 275.A OG GLY 272.A O no hydrogen 2.529 N/A GLY 277.A N GLU 290.A OE2 no hydrogen 3.013 N/A MET 279.A N SER 275.A O no hydrogen 2.924 N/A GLU 287.A N GLY 274.A O no hydrogen 2.883 N/A ILE 289.A N ILE 189.A O no hydrogen 3.003 N/A GLY 291.A N TYR 270.A O no hydrogen 2.786 N/A VAL 293.A N LYS 268.A O no hydrogen 3.007 N/A PHE 295.A N GLN 266.A O.A no hydrogen 2.982 N/A PHE 295.A N GLN 266.A O.B no hydrogen 3.005 N/A ARG 296.A N GLY 251.A O no hydrogen 2.740 N/A LEU 299.A N GLU 254.A OE1 no hydrogen 2.862 N/A VAL 302.A N PRO 298.A O no hydrogen 3.439 N/A ILE 303.A N LEU 299.A O no hydrogen 2.889 N/A HIS 304.A N.A SER 300.A O no hydrogen 2.996 N/A HIS 304.A N.B SER 300.A O no hydrogen 3.008 N/A GLN 305.A N SER 301.A O no hydrogen 3.126 N/A LEU 306.A N VAL 302.A O no hydrogen 2.978 N/A THR 307.A N ILE 303.A O no hydrogen 2.807 N/A THR 307.A OG1 ILE 303.A O no hydrogen 3.277 N/A THR 307.A OG1 HIS 304.A O.A no hydrogen 3.363 N/A THR 307.A OG1 HIS 304.A O.B no hydrogen 3.446 N/A GLY 308.A N HIS 304.A O.A no hydrogen 2.902 N/A GLY 308.A N HIS 304.A O.B no hydrogen 2.965 N/A GLY 309.A N GLN 305.A O no hydrogen 3.069 N/A LEU 310.A N LEU 306.A O no hydrogen 3.013 N/A ARG 311.A N THR 307.A O no hydrogen 2.735 N/A ARG 311.A NH1 PRO 35.A O no hydrogen 2.893 N/A ALA 312.A N GLY 308.A O no hydrogen 3.004 N/A ALA 313.A N GLY 309.A O no hydrogen 3.057 N/A MET 314.A N LEU 310.A O no hydrogen 2.899 N/A GLY 315.A N ARG 311.A O no hydrogen 2.912 N/A TYR 316.A N ALA 312.A O no hydrogen 2.900 N/A THR 317.A N ALA 313.A O no hydrogen 2.989 N/A THR 317.A OG1 ALA 313.A O no hydrogen 2.809 N/A THR 317.A OG1 MET 314.A O no hydrogen 3.413 N/A THR 317.A OG1 SER 319.A OG no hydrogen 2.789 N/A GLY 318.A N GLY 315.A O no hydrogen 3.411 N/A SER 319.A N MET 314.A O no hydrogen 2.896 N/A SER 319.A OG THR 317.A OG1 no hydrogen 2.789 N/A VAL 324.A N THR 321.A OG1 no hydrogen 3.234 N/A LEU 325.A N THR 321.A O no hydrogen 3.072 N/A GLN 326.A N ILE 322.A O no hydrogen 2.966 N/A GLN 326.A NE2 ALA 240.A O no hydrogen 2.991 N/A GLN 326.A NE2 SER 241.A OG no hydrogen 3.202 N/A GLN 327.A N VAL 324.A O no hydrogen 2.851 N/A GLN 327.A NE2 GLU 323.A O no hydrogen 3.372 N/A ALA 328.A N LEU 325.A O no hydrogen 2.966 N/A VAL 331.A N LEU 25.A O no hydrogen 2.870 N/A ILE 333.A N ASP 23.A O no hydrogen 2.885 N/A GLY 337.A N THR 334.A OG1 no hydrogen 3.269 N/A LEU 338.A N THR 334.A O no hydrogen 3.031 N/A LYS 339.A N PRO 335.A O no hydrogen 2.987 N/A GLU 340.A N ALA 336.A O no hydrogen 2.916 N/A SER 341.A N GLY 337.A O no hydrogen 3.007 N/A SER 341.A N LEU 338.A O no hydrogen 3.069 N/A SER 341.A OG GLY 337.A O no hydrogen 2.894 N/A HIS 342.A N LEU 338.A O no hydrogen 3.307 N/A HIS 342.A ND1 TYR 355.A OH no hydrogen 2.609 N/A HIS 344.A ND1 ASP 345.A OD2 no hydrogen 2.696 N/A TYR 355.A N ALA 352.A O no hydrogen 3.457 N/A TYR 355.A OH HIS 342.A ND1 no hydrogen 2.609 N/A ALA 357.A N GLU 351.A OE1.A no hydrogen 3.133 N/A ALA 357.A N GLU 351.A OE1.B no hydrogen 3.425 N/A ALA 357.A N GLU 351.A OE2.A no hydrogen 3.297 N/A ALA 357.A N GLU 351.A OE2.B no hydrogen 3.207 N/A