Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7roy_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): GLU 4.A N SER 1.A O no hydrogen 3.329 N/A ALA 7.A N MET 3.A O no hydrogen 2.915 N/A GLY 8.A N GLU 4.A O no hydrogen 2.921 N/A TYR 9.A N GLY 5.A O no hydrogen 2.924 N/A VAL 10.A N LEU 6.A O no hydrogen 2.886 N/A TYR 11.A N ALA 7.A O no hydrogen 2.923 N/A TYR 11.A OH SER 49.A OG no hydrogen 3.171 N/A LYS 12.A N GLY 8.A O no hydrogen 2.912 N/A LYS 12.A NZ GLU 16.A OE1 no hydrogen 3.342 N/A LYS 12.A NZ GLU 16.A OE2 no hydrogen 3.005 N/A ALA 13.A N TYR 9.A O no hydrogen 2.923 N/A ALA 14.A N VAL 10.A O no hydrogen 2.932 N/A SER 15.A N TYR 11.A O no hydrogen 2.871 N/A SER 15.A OG TYR 11.A O no hydrogen 3.062 N/A SER 15.A OG LYS 12.A O no hydrogen 2.795 N/A GLU 16.A N LYS 12.A O no hydrogen 2.956 N/A GLY 17.A N ALA 14.A O no hydrogen 3.445 N/A LYS 18.A N ALA 13.A O no hydrogen 2.919 N/A LEU 22.A N LYS 18.A O no hydrogen 2.993 N/A ALA 23.A N VAL 19.A O no hydrogen 2.906 N/A ALA 24.A N LEU 20.A O no hydrogen 2.913 N/A LEU 25.A N THR 21.A O no hydrogen 2.907 N/A LEU 26.A N LEU 22.A O no hydrogen 2.929 N/A LEU 27.A N ALA 23.A O no hydrogen 3.000 N/A ARG 29.A N LEU 26.A O no hydrogen 3.405 N/A SER 30.A OG SER 32.A OG no hydrogen 3.384 N/A SER 32.A OG SER 30.A OG no hydrogen 3.384 N/A ASP 33.A N SER 30.A OG no hydrogen 3.305 N/A ILE 34.A N SER 30.A O no hydrogen 2.738 N/A ARG 35.A N GLU 31.A O no hydrogen 2.915 N/A TYR 36.A N SER 32.A O no hydrogen 2.912 N/A LEU 37.A N ASP 33.A O no hydrogen 2.889 N/A LEU 38.A N ILE 34.A O no hydrogen 2.935 N/A GLY 39.A N ARG 35.A O no hydrogen 2.904 N/A TYR 40.A OH GLU 4.A OE1 no hydrogen 2.813 N/A SER 42.A N SER 49.A O no hydrogen 2.898 N/A GLN 44.A N GLN 47.A O no hydrogen 2.867 N/A GLN 47.A N GLN 44.A O no hydrogen 2.913 N/A ARG 48.A N THR 80.A O no hydrogen 2.657 N/A ARG 48.A NE GLN 43.A OE1 no hydrogen 3.485 N/A SER 49.A N SER 42.A O no hydrogen 2.924 N/A THR 50.A OG1 GLN 77.A OE1 no hydrogen 2.839 N/A ILE 54.A N THR 50.A O no hydrogen 2.976 N/A ALA 55.A N PRO 51.A O no hydrogen 2.925 N/A ALA 56.A N LEU 52.A O no hydrogen 2.903 N/A ARG 57.A N ILE 53.A O no hydrogen 2.891 N/A ASN 58.A N ILE 54.A O no hydrogen 3.062 N/A ASN 58.A ND2 SER 15.A O no hydrogen 2.940 N/A HIS 60.A N ALA 55.A O no hydrogen 2.874 N/A HIS 60.A NE2 SER 15.A O no hydrogen 2.722 N/A VAL 64.A N HIS 60.A O no hydrogen 2.976 N/A ARG 65.A N ALA 61.A O no hydrogen 2.860 N/A ARG 65.A NE GLU 69.A OE2 no hydrogen 3.237 N/A LEU 66.A N LYS 62.A O no hydrogen 2.921 N/A LEU 67.A N VAL 63.A O no hydrogen 2.948 N/A LEU 68.A N VAL 64.A O no hydrogen 2.917 N/A GLU 69.A N ARG 65.A O no hydrogen 2.877 N/A HIS 70.A N LEU 66.A O no hydrogen 2.962 N/A GLY 79.A N ALA 91.A O no hydrogen 2.986 N/A THR 80.A N ARG 48.A O no hydrogen 2.551 N/A THR 80.A OG1 ASP 89.A OD1 no hydrogen 2.592 N/A VAL 81.A N ILE 88.A O no hydrogen 3.076 N/A ARG 82.A N GLN 47.A OE1 no hydrogen 2.754 N/A PHE 83.A N TYR 86.A O no hydrogen 2.842 N/A ILE 88.A N VAL 81.A O no hydrogen 2.812 N/A ALA 91.A N GLY 79.A O no hydrogen 2.997 N/A TRP 95.A N THR 92.A OG1 no hydrogen 3.392 N/A TRP 95.A NE1 SER 124.A OG no hydrogen 3.006 N/A CYS 96.A N THR 92.A O no hydrogen 2.937 N/A CYS 96.A SG THR 92.A O no hydrogen 3.289 N/A ALA 97.A N ALA 93.A O no hydrogen 2.911 N/A ALA 98.A N LEU 94.A O no hydrogen 2.896 N/A GLY 99.A N TRP 95.A O no hydrogen 2.914 N/A ALA 100.A N CYS 96.A O no hydrogen 2.905 N/A GLY 101.A N ALA 98.A O no hydrogen 3.379 N/A HIS 102.A N ALA 97.A O no hydrogen 2.930 N/A VAL 106.A N HIS 102.A O no hydrogen 2.937 N/A LYS 107.A N PHE 103.A O no hydrogen 2.912 N/A LEU 108.A N GLU 104.A O no hydrogen 2.904 N/A LEU 109.A N VAL 105.A O no hydrogen 2.915 N/A VAL 110.A N VAL 106.A O no hydrogen 2.912 N/A SER 111.A N LYS 107.A O no hydrogen 2.827 N/A SER 111.A OG LYS 107.A O no hydrogen 3.096 N/A SER 111.A OG LEU 108.A O no hydrogen 2.924 N/A SER 111.A OG HIS 112.A ND1 no hydrogen 3.199 N/A HIS 112.A N LEU 109.A O no hydrogen 3.139 N/A HIS 112.A ND1 LEU 108.A O no hydrogen 2.963 N/A HIS 112.A ND1 SER 111.A OG no hydrogen 3.199 N/A GLY 113.A N VAL 110.A O no hydrogen 2.935 N/A ALA 114.A N LEU 109.A O no hydrogen 3.093 N/A ASN 117.A N ASN 115.A OD1 no hydrogen 3.335 N/A ASN 117.A ND2 ASN 146.A O no hydrogen 2.955 N/A HIS 118.A N ASN 115.A O no hydrogen 3.378 N/A HIS 118.A NE2 GLY 90.A O no hydrogen 3.118 N/A THR 119.A OG1 ASN 123.A OD1 no hydrogen 3.355 N/A THR 120.A N SER 124.A O no hydrogen 3.017 N/A THR 120.A OG1 THR 122.A OG1 no hydrogen 3.287 N/A VAL 121.A N ASP 89.A O no hydrogen 2.979 N/A THR 122.A OG1 THR 120.A OG1 no hydrogen 3.287 N/A ASN 123.A N THR 120.A O no hydrogen 3.152 N/A ASN 123.A ND2 ALA 152.A O no hydrogen 3.612 N/A SER 124.A N THR 120.A OG1 no hydrogen 3.099 N/A SER 124.A OG THR 125.A O no hydrogen 3.531 N/A ARG 128.A N THR 125.A OG1 no hydrogen 3.003 N/A ALA 129.A N THR 125.A O no hydrogen 2.920 N/A ALA 130.A N PRO 126.A O no hydrogen 2.914 N/A CYS 131.A N LEU 127.A O no hydrogen 2.882 N/A CYS 131.A SG LEU 127.A O no hydrogen 3.220 N/A PHE 132.A N ARG 128.A O no hydrogen 2.929 N/A GLY 134.A N ALA 130.A O no hydrogen 2.977 N/A ARG 135.A N ALA 130.A O no hydrogen 3.181 N/A ARG 135.A NE ASP 137.A OD1 no hydrogen 3.294 N/A ARG 135.A NH1 GLY 101.A O no hydrogen 3.556 N/A ARG 135.A NH1 ASP 137.A OD2 no hydrogen 3.099 N/A ARG 135.A NH2 GLY 101.A O no hydrogen 2.829 N/A ILE 138.A N ASP 137.A OD1 no hydrogen 2.601 N/A VAL 139.A N ARG 135.A O no hydrogen 2.944 N/A LYS 140.A N LEU 136.A O no hydrogen 2.870 N/A TYR 141.A N ASP 137.A O no hydrogen 2.935 N/A LEU 142.A N ILE 138.A O no hydrogen 2.917 N/A VAL 143.A N VAL 139.A O no hydrogen 2.912 N/A GLU 144.A N LYS 140.A O no hydrogen 2.902 N/A ASN 145.A N TYR 141.A O no hydrogen 3.163 N/A ASN 145.A ND2 TYR 141.A O no hydrogen 3.000 N/A ASN 146.A N VAL 143.A O no hydrogen 3.351 N/A ALA 147.A N LEU 142.A O no hydrogen 3.105 N/A ASN 148.A N ASN 117.A OD1 no hydrogen 2.485 N/A SER 150.A N ASN 148.A OD1 no hydrogen 2.927 N/A ASN 153.A N ASN 157.A O no hydrogen 3.288 N/A LYS 154.A N THR 122.A O no hydrogen 2.775 N/A TYR 155.A N ASN 153.A OD1 no hydrogen 3.212 N/A ASP 156.A N ASN 153.A O no hydrogen 3.240 N/A ASN 157.A N ASN 153.A OD1 no hydrogen 2.784 N/A ASN 157.A ND2 TYR 155.A O no hydrogen 3.498 N/A MET 161.A N THR 158.A OG1 no hydrogen 2.805 N/A ILE 162.A N THR 158.A O no hydrogen 2.943 N/A ALA 163.A N CYS 159.A O no hydrogen 2.924 N/A ALA 164.A N LEU 160.A O no hydrogen 2.888 N/A TYR 165.A N MET 161.A O no hydrogen 2.924 N/A LYS 166.A N ILE 162.A O no hydrogen 3.163 N/A HIS 168.A N ALA 163.A O no hydrogen 3.113 N/A HIS 168.A NE2 PHE 132.A O no hydrogen 2.897 N/A VAL 172.A N HIS 168.A O no hydrogen 2.912 N/A ARG 173.A N THR 169.A O no hydrogen 2.907 N/A ARG 173.A NH1 GLU 207.A OE1 no hydrogen 3.185 N/A TYR 174.A N ASP 170.A O no hydrogen 2.908 N/A LEU 175.A N VAL 171.A O no hydrogen 2.897 N/A LEU 176.A N VAL 172.A O no hydrogen 2.931 N/A GLU 177.A N ARG 173.A O no hydrogen 2.896 N/A GLN 178.A N TYR 174.A O no hydrogen 2.928 N/A ARG 179.A N LEU 176.A O no hydrogen 3.347 N/A ALA 180.A N LEU 175.A O no hydrogen 3.171 N/A ASN 183.A N ASP 181.A OD1 no hydrogen 3.069 N/A ALA 186.A N ALA 190.A O no hydrogen 2.753 N/A HIS 187.A N TYR 155.A O no hydrogen 3.163 N/A GLY 189.A N ALA 186.A O no hydrogen 2.999 N/A THR 191.A N HIS 194.A ND1 no hydrogen 3.100 N/A THR 191.A OG1 HIS 194.A ND1 no hydrogen 2.608 N/A HIS 194.A N THR 191.A OG1 no hydrogen 3.362 N/A HIS 194.A ND1 THR 191.A OG1 no hydrogen 2.608 N/A HIS 194.A NE2 MET 222.A O no hydrogen 2.848 N/A PHE 195.A N THR 191.A O no hydrogen 2.943 N/A ALA 196.A N ALA 192.A O no hydrogen 2.888 N/A ALA 197.A N LEU 193.A O no hydrogen 2.913 N/A GLU 198.A N HIS 194.A O no hydrogen 3.297 N/A ALA 199.A N PHE 195.A O no hydrogen 3.395 N/A GLY 200.A N ALA 197.A O no hydrogen 3.250 N/A HIS 201.A N ALA 196.A O no hydrogen 3.129 N/A HIS 201.A NE2 TYR 165.A O no hydrogen 2.889 N/A VAL 205.A N HIS 201.A O no hydrogen 2.949 N/A LYS 206.A N ILE 202.A O no hydrogen 2.928 N/A GLU 207.A N ASP 203.A O no hydrogen 2.888 N/A LEU 208.A N ILE 204.A O no hydrogen 2.906 N/A ILE 209.A N VAL 205.A O no hydrogen 2.940 N/A LYS 210.A N LYS 206.A O no hydrogen 2.898 N/A LYS 210.A NZ GLU 207.A OE2 no hydrogen 3.112 N/A TRP 211.A N GLU 207.A O no hydrogen 3.133 N/A ARG 212.A N ILE 209.A O no hydrogen 2.860 N/A ALA 213.A N LEU 208.A O no hydrogen 3.082 N/A ALA 214.A N ASN 183.A OD1 no hydrogen 2.760 N/A ASN 218.A N MET 222.A O no hydrogen 3.196 N/A GLY 219.A N CYS 188.A O no hydrogen 2.675 N/A HIS 220.A N ASN 218.A OD1 no hydrogen 3.106 N/A GLY 221.A N ASN 218.A O no hydrogen 2.932 N/A MET 222.A N ASN 218.A OD1 no hydrogen 2.928 N/A LYS 226.A N THR 223.A OG1 no hydrogen 2.993 N/A LYS 226.A NZ GLY 221.A O no hydrogen 3.368 N/A VAL 227.A N THR 223.A O no hydrogen 2.888 N/A ALA 228.A N PRO 224.A O no hydrogen 2.912 N/A ALA 229.A N LEU 225.A O no hydrogen 2.911 N/A GLU 230.A N LYS 226.A O no hydrogen 3.015 N/A SER 231.A N VAL 227.A O no hydrogen 3.148 N/A SER 231.A OG VAL 227.A O no hydrogen 3.111 N/A SER 231.A OG GLU 230.A OE1 no hydrogen 3.355 N/A CYS 232.A N ALA 229.A O no hydrogen 3.395 N/A CYS 232.A SG ASP 265.A OD2 no hydrogen 3.689 N/A LYS 233.A N ALA 228.A O no hydrogen 3.021 N/A VAL 237.A N LYS 233.A O no hydrogen 2.928 N/A GLU 238.A N ALA 234.A O no hydrogen 2.883 N/A LEU 239.A N ASP 235.A O no hydrogen 2.912 N/A LEU 240.A N VAL 236.A O no hydrogen 2.896 N/A LEU 241.A N VAL 237.A O no hydrogen 2.853 N/A SER 242.A N LEU 239.A O no hydrogen 3.133 N/A HIS 243.A N LEU 240.A O no hydrogen 3.202 N/A CYS 246.A SG HIS 243.A O no hydrogen 3.247 N/A ASP 247.A N ASP 247.A OD1 no hydrogen 2.428 N/A ARG 248.A NH2 GLU 284.A O no hydrogen 2.571 N/A SER 250.A OG ASP 247.A OD1 no hydrogen 2.555 N/A SER 250.A OG ASP 247.A OD2 no hydrogen 3.174 N/A ARG 251.A N ASP 247.A O no hydrogen 2.934 N/A ARG 251.A NE GLU 284.A OE1 no hydrogen 2.855 N/A ARG 251.A NE GLU 284.A OE2 no hydrogen 3.331 N/A ARG 251.A NH2 GLU 284.A OE2 no hydrogen 3.168 N/A ILE 252.A N ARG 248.A O no hydrogen 2.945 N/A GLU 253.A N ARG 249.A O no hydrogen 2.871 N/A ALA 254.A N SER 250.A O no hydrogen 2.900 N/A LEU 255.A N ARG 251.A O no hydrogen 2.949 N/A GLU 256.A N ILE 252.A O no hydrogen 2.911 N/A LEU 257.A N GLU 253.A O no hydrogen 2.885 N/A LEU 258.A N ALA 254.A O no hydrogen 2.910 N/A GLY 259.A N LEU 255.A O no hydrogen 2.946 N/A ALA 260.A N GLU 256.A O no hydrogen 2.895 N/A SER 261.A N LEU 257.A O no hydrogen 2.879 N/A SER 261.A OG GLU 230.A O no hydrogen 3.499 N/A SER 261.A OG LEU 257.A O no hydrogen 2.744 N/A PHE 262.A N LEU 258.A O no hydrogen 2.974 N/A ALA 263.A N ALA 260.A O no hydrogen 3.244 N/A ASN 264.A ND2 HIS 327.A O no hydrogen 3.388 N/A ARG 266.A NH1 ARG 266.A O no hydrogen 3.515 N/A GLU 267.A N ASP 265.A OD1 no hydrogen 3.016 N/A ASN 268.A N ASP 265.A OD1 no hydrogen 3.249 N/A TYR 269.A OH HIS 327.A NE2 no hydrogen 2.881 N/A ASP 270.A N PHE 262.A O no hydrogen 2.927 N/A LYS 273.A N ASP 270.A OD1 no hydrogen 3.183 N/A THR 274.A N ASP 270.A O no hydrogen 2.934 N/A THR 274.A OG1 GLY 259.A O no hydrogen 3.145 N/A THR 274.A OG1 ASP 270.A O no hydrogen 2.938 N/A TYR 275.A N ILE 271.A O no hydrogen 2.994 N/A HIS 276.A N MET 272.A O no hydrogen 2.872 N/A TYR 277.A N LYS 273.A O no hydrogen 2.946 N/A LEU 278.A N THR 274.A O no hydrogen 3.010 N/A TYR 279.A N TYR 275.A O no hydrogen 2.860 N/A TYR 279.A OH GLU 317.A OE2 no hydrogen 2.691 N/A LEU 280.A N HIS 276.A O no hydrogen 2.931 N/A ALA 281.A N TYR 277.A O no hydrogen 2.959 N/A MET 282.A N LEU 278.A O no hydrogen 2.945 N/A LEU 283.A N TYR 279.A O no hydrogen 2.865 N/A GLU 284.A N LEU 280.A O no hydrogen 2.951 N/A ARG 285.A N ALA 281.A O no hydrogen 2.924 N/A ARG 285.A NE LEU 293.A O no hydrogen 2.915 N/A ARG 285.A NH2 GLU 256.A OE2 no hydrogen 2.407 N/A PHE 286.A N MET 282.A O no hydrogen 3.232 N/A PHE 286.A N LEU 283.A O no hydrogen 3.052 N/A LEU 293.A N ARG 285.A O no hydrogen 3.155 N/A LYS 295.A NZ GLU 309.A OE2 no hydrogen 2.418 N/A LYS 295.A NZ CYS 310.A O no hydrogen 3.348 N/A TYR 304.A OH GLU 335.A OE1 no hydrogen 2.671 N/A GLY 305.A N HIS 302.A O no hydrogen 3.177 N/A ASN 306.A N ILE 301.A O no hydrogen 3.162 N/A ARG 307.A N TYR 304.A O no hydrogen 3.421 N/A CYS 310.A N GLU 329.A OE2 no hydrogen 2.847 N/A CYS 310.A SG GLU 315.A O no hydrogen 3.425 N/A CYS 310.A SG GLU 329.A OE2 no hydrogen 3.278 N/A ARG 311.A N GLU 315.A OE1 no hydrogen 2.893 N/A GLU 315.A N ASN 312.A OD1 no hydrogen 2.623 N/A LEU 316.A N ASN 312.A O no hydrogen 2.991 N/A GLU 317.A N PRO 313.A O no hydrogen 2.838 N/A ALA 318.A N GLN 314.A O no hydrogen 2.942 N/A ILE 319.A N LEU 316.A O no hydrogen 3.356 N/A ARG 320.A N GLU 317.A O no hydrogen 3.235 N/A ASP 322.A N ILE 319.A O no hydrogen 3.145 N/A ARG 323.A NE TYR 269.A OH no hydrogen 3.024 N/A ALA 325.A N ASP 322.A OD1 no hydrogen 3.325 N/A LEU 326.A N ASP 322.A O no hydrogen 2.922 N/A HIS 327.A N ARG 323.A O no hydrogen 2.934 N/A HIS 327.A NE2 TYR 269.A OH no hydrogen 2.881 N/A MET 328.A N ASP 324.A O no hydrogen 2.937 N/A GLU 329.A N ALA 325.A O no hydrogen 2.844 N/A GLY 330.A N LEU 326.A O no hydrogen 2.899 N/A LEU 331.A N HIS 327.A O no hydrogen 3.031 N/A ILE 332.A N MET 328.A O no hydrogen 2.881 N/A VAL 333.A N GLU 329.A O no hydrogen 2.896 N/A ARG 334.A N GLY 330.A O no hydrogen 2.948 N/A ARG 334.A NE SER 261.A OG no hydrogen 3.142 N/A GLU 335.A N LEU 331.A O no hydrogen 2.954 N/A ARG 336.A N ILE 332.A O no hydrogen 2.896 N/A ARG 336.A NH1 GLU 309.A OE1 no hydrogen 3.048 N/A ARG 336.A NH2 GLU 256.A OE1 no hydrogen 2.638 N/A ILE 337.A N VAL 333.A O no hydrogen 2.931 N/A LEU 338.A N ARG 334.A O no hydrogen 2.990 N/A GLY 339.A N GLU 335.A O no hydrogen 2.823 N/A ASP 341.A N LEU 338.A O no hydrogen 3.177 N/A ASN 342.A N ASN 342.A OD1 no hydrogen 2.608 N/A ILE 343.A N ASP 341.A O no hydrogen 3.061 N/A SER 346.A OG ASP 344.A OD1 no hydrogen 2.488 N/A ILE 350.A N SER 346.A O no hydrogen 2.914 N/A TYR 351.A N HIS 347.A O no hydrogen 2.936 N/A ARG 352.A N PRO 348.A O no hydrogen 2.906 N/A ARG 352.A NH1 ALA 263.A O no hydrogen 3.104 N/A ARG 352.A NH1 ASN 264.A OD1 no hydrogen 3.160 N/A GLY 353.A N ILE 349.A O no hydrogen 2.924 N/A ALA 354.A N ILE 350.A O no hydrogen 2.908 N/A VAL 355.A N TYR 351.A O no hydrogen 2.908 N/A TYR 356.A N ARG 352.A O no hydrogen 2.933 N/A TYR 356.A OH ASP 324.A OD1 no hydrogen 2.806 N/A ALA 357.A N GLY 353.A O no hydrogen 2.888 N/A ASP 358.A N ALA 354.A O no hydrogen 2.969 N/A ASN 359.A N TYR 356.A O no hydrogen 3.148 N/A ASN 359.A ND2 ASN 359.A O no hydrogen 2.536 N/A MET 360.A N ALA 357.A O no hydrogen 3.034 N/A GLU 361.A N TYR 356.A O no hydrogen 2.832 N/A GLN 364.A NE2 ALA 303.A O no hydrogen 3.180 N/A CYS 365.A N GLU 361.A O no hydrogen 2.935 N/A CYS 365.A SG GLY 353.A O no hydrogen 3.120 N/A ILE 366.A N PHE 362.A O no hydrogen 2.870 N/A LYS 367.A N GLU 363.A O no hydrogen 2.937 N/A LYS 367.A NZ GLN 364.A OE1 no hydrogen 3.216 N/A LEU 368.A N GLN 364.A O no hydrogen 2.930 N/A TRP 369.A N CYS 365.A O no hydrogen 2.934 N/A TRP 369.A NE1 ILE 350.A O no hydrogen 3.272 N/A LEU 370.A N ILE 366.A O no hydrogen 2.856 N/A HIS 371.A N LYS 367.A O no hydrogen 2.983 N/A HIS 371.A NE2 GLU 335.A OE1 no hydrogen 3.038 N/A ALA 372.A N LEU 368.A O no hydrogen 2.898 N/A LEU 373.A N TRP 369.A O no hydrogen 2.926 N/A HIS 374.A N LEU 370.A O no hydrogen 2.894 N/A LEU 375.A N HIS 371.A O no hydrogen 2.927 N/A ARG 376.A N LEU 373.A O no hydrogen 3.392 N/A ARG 376.A NH2 SER 346.A OG no hydrogen 3.221 N/A