Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 1xkn_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): THR 4.A N THR 103.A O no hydrogen 2.993 N/A PHE 6.A N ILE 101.A O no hydrogen 2.915 N/A ALA 11.A N PRO 8.A O no hydrogen 3.067 N/A HIS 13.A N ASN 284.A OD1 no hydrogen 2.777 N/A HIS 13.A ND1 GLU 49.A OE1 no hydrogen 2.981 N/A HIS 13.A NE2 GLU 9.A O no hydrogen 2.675 N/A ALA 14.A N GLU 335.A O no hydrogen 2.701 N/A SER 15.A N GLU 335.A O no hydrogen 3.455 N/A SER 15.A OG ASN 52.A OD1 no hydrogen 2.867 N/A SER 15.A OG GLU 335.A OE2 no hydrogen 2.770 N/A THR 16.A N THR 50.A O no hydrogen 3.000 N/A THR 16.A OG1 GLU 49.A OE1 no hydrogen 2.517 N/A THR 16.A OG1 TYR 281.A OH no hydrogen 2.687 N/A TRP 17.A N HIS 333.A O no hydrogen 2.759 N/A LEU 18.A N ASN 52.A O no hydrogen 2.906 N/A SER 19.A OG HIS 95.A NE2 no hydrogen 3.100 N/A TRP 20.A N ASN 54.A O no hydrogen 3.026 N/A HIS 22.A ND1 TRP 20.A O no hydrogen 3.321 N/A SER 26.A N LYS 23.A O no hydrogen 2.950 N/A TRP 27.A N LEU 24.A O no hydrogen 3.158 N/A TRP 27.A NE1 LEU 321.A O no hydrogen 2.910 N/A LYS 30.A N TRP 27.A O no hydrogen 2.998 N/A LYS 30.A NZ ASP 320.A OD1 no hydrogen 3.392 N/A VAL 34.A N PHE 31.A O no hydrogen 2.904 N/A VAL 37.A N VAL 34.A O no hydrogen 2.921 N/A PHE 38.A N VAL 34.A O no hydrogen 3.204 N/A ALA 39.A N PRO 35.A O no hydrogen 2.988 N/A GLU 40.A N ALA 36.A O no hydrogen 2.961 N/A LEU 41.A N VAL 37.A O no hydrogen 2.920 N/A ALA 42.A N PHE 38.A O no hydrogen 2.769 N/A TYR 43.A N ALA 39.A O no hydrogen 2.900 N/A GLN 44.A N GLU 40.A O no hydrogen 2.968 N/A LEU 45.A N LEU 41.A O no hydrogen 2.910 N/A SER 46.A N ALA 42.A O no hydrogen 2.822 N/A SER 46.A OG ALA 42.A O no hydrogen 3.499 N/A SER 46.A OG TYR 43.A O no hydrogen 2.650 N/A ARG 47.A N GLN 44.A O no hydrogen 3.174 N/A ARG 47.A NH1 GLN 44.A OE1 no hydrogen 2.883 N/A ARG 47.A NH1 GLU 312.A OE2 no hydrogen 3.374 N/A ARG 47.A NH2 GLU 312.A OE2 no hydrogen 3.266 N/A SER 48.A N LEU 45.A O no hydrogen 2.934 N/A SER 48.A OG GLU 49.A OE2 no hydrogen 2.756 N/A GLU 49.A N LEU 45.A O no hydrogen 2.933 N/A VAL 51.A N ARG 79.A O no hydrogen 2.756 N/A ASN 52.A N THR 16.A O no hydrogen 2.900 N/A ILE 53.A N VAL 81.A O no hydrogen 2.851 N/A ASN 54.A N LEU 18.A O no hydrogen 2.843 N/A ASN 54.A ND2 SER 19.A OG no hydrogen 3.291 N/A VAL 55.A N HIS 83.A O no hydrogen 2.918 N/A ALA 61.A N ASP 58.A O no hydrogen 3.028 N/A GLN 62.A N ALA 59.A O no hydrogen 3.102 N/A ARG 64.A N GLU 60.A O no hydrogen 2.847 N/A ARG 64.A NE GLU 60.A OE2 no hydrogen 2.890 N/A ARG 64.A NH2 GLU 60.A OE2 no hydrogen 3.122 N/A GLU 65.A N ALA 61.A O no hydrogen 2.945 N/A LEU 66.A N GLN 62.A O no hydrogen 3.165 N/A LEU 67.A N ALA 63.A O no hydrogen 2.892 N/A LYS 68.A N ARG 64.A O no hydrogen 2.972 N/A LYS 68.A N GLU 65.A O no hydrogen 3.050 N/A LYS 68.A NZ PRO 72.A O no hydrogen 3.346 N/A GLU 69.A N LEU 66.A O no hydrogen 3.146 N/A ARG 70.A N LEU 67.A O no hydrogen 3.039 N/A ARG 70.A NH2 ALA 36.A O no hydrogen 2.983 N/A ASP 71.A N LEU 67.A O no hydrogen 2.723 N/A GLY 74.A N ASP 71.A O no hydrogen 2.960 N/A LYS 75.A N ASP 71.A OD1 no hydrogen 2.881 N/A TYR 76.A N ASP 71.A OD2 no hydrogen 3.003 N/A ALA 77.A N GLY 74.A O no hydrogen 3.157 N/A ARG 79.A N TYR 76.A O no hydrogen 2.914 N/A ARG 79.A NH1 SER 46.A O no hydrogen 2.828 N/A ARG 79.A NH1 ARG 47.A O no hydrogen 3.205 N/A ILE 80.A N ALA 77.A O no hydrogen 3.119 N/A VAL 81.A N VAL 51.A O no hydrogen 2.769 N/A HIS 83.A N ILE 53.A O no hydrogen 2.806 N/A ARG 84.A NH2 ASP 58.A OD1 no hydrogen 2.858 N/A ILE 85.A N VAL 55.A O no hydrogen 3.010 N/A ASN 88.A N ASP 129.A OD1 no hydrogen 2.645 N/A ASP 89.A N ASP 129.A OD1 no hydrogen 2.998 N/A TRP 91.A N ASP 89.A OD1 no hydrogen 3.064 N/A CYS 92.A N ALA 90.A O no hydrogen 2.832 N/A ARG 93.A N CYS 330.A O no hydrogen 3.017 N/A ARG 93.A NE HIS 329.A O no hydrogen 2.906 N/A ARG 93.A NH1 THR 332.A OG1 no hydrogen 3.165 N/A ARG 93.A NH1 GLU 334.A OE1 no hydrogen 3.191 N/A ARG 93.A NH2 GLU 334.A OE1 no hydrogen 2.824 N/A ASP 94.A N TRP 91.A O no hydrogen 2.969 N/A HIS 95.A N TRP 91.A O no hydrogen 3.104 N/A HIS 95.A NE2 SER 19.A OG no hydrogen 3.100 N/A TYR 99.A OH GLN 140.A OE1 no hydrogen 2.521 N/A VAL 100.A N VAL 111.A O no hydrogen 3.045 N/A ILE 101.A N PHE 6.A O no hydrogen 2.740 N/A ARG 102.A N ASP 109.A O no hydrogen 2.821 N/A ARG 102.A NE ASP 109.A OD2 no hydrogen 3.178 N/A ARG 102.A NH2 ASP 109.A OD1 no hydrogen 2.860 N/A THR 103.A N THR 4.A O no hydrogen 2.895 N/A GLN 104.A N ARG 107.A O no hydrogen 3.022 N/A GLN 104.A NE2 SER 1.A O no hydrogen 3.167 N/A ARG 107.A N GLN 104.A O no hydrogen 2.971 N/A ARG 107.A NH1 ARG 107.A O no hydrogen 2.949 N/A ARG 108.A NH1 LEU 338.A O no hydrogen 3.538 N/A ASP 109.A N ARG 102.A O no hydrogen 3.042 N/A LYS 110.A NZ GLU 335.A OE1 no hydrogen 2.866 N/A LYS 110.A NZ PRO 336.A O no hydrogen 2.968 N/A VAL 111.A N VAL 100.A O no hydrogen 3.041 N/A ILE 112.A N PRO 143.A O no hydrogen 2.994 N/A ASN 113.A ND2 SER 145.A OG no hydrogen 3.061 N/A TRP 114.A NE1 ASN 98.A OD1 no hydrogen 2.869 N/A TYR 116.A N ASN 130.A OD1 no hydrogen 2.812 N/A TYR 116.A OH ASP 89.A OD2 no hydrogen 2.817 N/A TRP 119.A NE1 ASP 94.A OD1 no hydrogen 2.716 N/A GLY 121.A N ASN 117.A O no hydrogen 2.604 N/A LYS 122.A N ALA 118.A O no hydrogen 2.988 N/A LYS 122.A NZ TRP 119.A O no hydrogen 2.858 N/A LYS 122.A NZ ASP 207.A O no hydrogen 3.322 N/A LYS 122.A NZ ASP 209.A OD1 no hydrogen 3.476 N/A LYS 122.A NZ ASP 209.A OD2 no hydrogen 2.727 N/A TYR 123.A OH ASP 207.A OD1 no hydrogen 3.424 N/A ASP 129.A N ASN 88.A OD1 no hydrogen 2.964 N/A ASN 130.A N TYR 126.A O no hydrogen 3.012 N/A ASN 130.A ND2 GLU 115.A OE1 no hydrogen 3.019 N/A ALA 131.A N ASP 127.A O no hydrogen 3.117 N/A ALA 131.A N ASP 128.A O no hydrogen 2.960 N/A VAL 132.A N ASP 129.A O no hydrogen 3.117 N/A ARG 135.A N ALA 131.A O no hydrogen 3.099 N/A ARG 135.A NH2 ASP 128.A OD1 no hydrogen 3.311 N/A VAL 136.A N VAL 132.A O no hydrogen 2.872 N/A ALA 137.A N PRO 133.A O no hydrogen 2.918 N/A LYS 138.A N GLU 134.A O no hydrogen 2.950 N/A ALA 139.A N ARG 135.A O no hydrogen 2.916 N/A GLN 140.A N VAL 136.A O no hydrogen 2.917 N/A GLN 140.A NE2 GLU 335.A OE1 no hydrogen 3.420 N/A GLN 140.A NE2 GLU 335.A OE2 no hydrogen 2.989 N/A GLY 141.A N LYS 138.A O no hydrogen 3.198 N/A LEU 142.A N ALA 137.A O no hydrogen 2.817 N/A THR 146.A N ASN 113.A O no hydrogen 3.049 N/A LEU 149.A N GLU 115.A O no hydrogen 3.023 N/A GLY 152.A N ASP 94.A OD2 no hydrogen 2.952 N/A ALA 153.A N GLU 150.A O no hydrogen 2.989 N/A ILE 154.A N GLY 151.A O no hydrogen 3.391 N/A ASP 155.A N LEU 163.A O no hydrogen 2.954 N/A ASN 157.A N LEU 161.A O no hydrogen 3.146 N/A ASN 157.A ND2 GLU 220.A O no hydrogen 2.828 N/A ALA 159.A N ASN 157.A OD1 no hydrogen 2.928 N/A LEU 161.A N ASN 157.A OD1 no hydrogen 2.796 N/A LEU 162.A N LYS 195.A O no hydrogen 3.049 N/A LEU 163.A N ASP 155.A O no hydrogen 2.668 N/A THR 164.A N LEU 197.A O no hydrogen 3.046 N/A THR 164.A OG1 ALA 153.A O no hydrogen 2.744 N/A THR 165.A N THR 164.A OG1 no hydrogen 2.736 N/A THR 165.A OG1 GLY 210.A O no hydrogen 2.697 N/A THR 166.A N LEU 199.A O no hydrogen 2.887 N/A THR 166.A OG1 LEU 199.A O no hydrogen 3.331 N/A ALA 167.A N GLY 200.A O no hydrogen 3.325 N/A CYS 168.A N THR 165.A OG1 no hydrogen 3.238 N/A CYS 168.A SG GLU 150.A OE2 no hydrogen 3.761 N/A CYS 168.A SG THR 208.A O no hydrogen 3.747 N/A LEU 169.A N THR 165.A O no hydrogen 3.111 N/A LEU 170.A N THR 166.A O no hydrogen 3.012 N/A ASN 171.A N CYS 168.A O no hydrogen 3.027 N/A ASN 173.A N ASN 171.A OD1 no hydrogen 2.848 N/A ASN 173.A ND2 ASP 209.A OD2 no hydrogen 3.062 N/A ARG 174.A N ASN 171.A O no hydrogen 3.072 N/A ARG 174.A NE GLU 150.A OE1 no hydrogen 2.762 N/A ARG 174.A NE GLU 150.A OE2 no hydrogen 3.380 N/A ARG 174.A NH1 GLU 150.A OE2 no hydrogen 2.949 N/A ARG 174.A NH1 THR 208.A O no hydrogen 2.787 N/A ARG 174.A NH2 ASN 173.A OD1 no hydrogen 2.817 N/A ARG 174.A NH2 ASP 209.A OD2 no hydrogen 2.898 N/A LEU 178.A N ASN 175.A O no hydrogen 2.965 N/A GLY 179.A N GLU 182.A OE1 no hydrogen 2.874 N/A ILE 183.A N GLY 179.A O no hydrogen 3.002 N/A GLU 184.A N LYS 180.A O no hydrogen 2.954 N/A ALA 185.A N ALA 181.A O no hydrogen 2.919 N/A GLN 186.A N GLU 182.A O no hydrogen 3.014 N/A LEU 187.A N ILE 183.A O no hydrogen 3.032 N/A ARG 188.A N GLU 184.A O no hydrogen 2.878 N/A ARG 188.A NE GLU 194.A O no hydrogen 3.321 N/A ARG 188.A NH1 GLU 184.A OE1 no hydrogen 2.955 N/A ARG 188.A NH2 GLU 194.A O no hydrogen 2.821 N/A ARG 189.A N ALA 185.A O no hydrogen 2.849 N/A TYR 190.A N GLN 186.A O no hydrogen 2.874 N/A LEU 191.A N LEU 187.A O no hydrogen 2.976 N/A GLY 192.A N ARG 188.A O no hydrogen 2.917 N/A GLU 194.A N GLY 160.A O no hydrogen 2.798 N/A LYS 195.A N GLY 160.A O no hydrogen 2.987 N/A LYS 195.A NZ THR 249.A O no hydrogen 2.954 N/A LEU 197.A N LEU 162.A O no hydrogen 2.774 N/A TRP 198.A NE1 GLU 184.A OE2 no hydrogen 2.848 N/A LEU 199.A N THR 164.A O no hydrogen 2.855 N/A GLY 200.A N ASN 242.A OD1 no hydrogen 2.676 N/A ALA 204.A N ASN 235.A OD1 no hydrogen 2.723 N/A THR 208.A N ASP 206.A OD1 no hydrogen 3.020 N/A THR 208.A OG1 ASP 206.A OD1 no hydrogen 2.638 N/A THR 208.A OG1 ASP 206.A OD2 no hydrogen 2.936 N/A GLY 210.A N ASP 206.A OD2 no hydrogen 2.739 N/A HIS 211.A N ASP 206.A OD2 no hydrogen 3.298 N/A HIS 211.A N THR 208.A OG1 no hydrogen 3.022 N/A HIS 211.A NE2 GLU 150.A OE2 no hydrogen 2.718 N/A ASP 213.A N GLY 152.A O no hydrogen 3.161 N/A ASP 214.A N HIS 211.A O no hydrogen 3.275 N/A ARG 216.A N VAL 224.A O no hydrogen 2.891 N/A ARG 216.A NE ASP 155.A OD2 no hydrogen 2.761 N/A ARG 216.A NH1 GLU 9.A OE2 no hydrogen 2.813 N/A ARG 216.A NH2 ALA 278.A O no hydrogen 2.997 N/A ARG 216.A NH2 PHE 280.A O no hydrogen 2.808 N/A PHE 217.A N ASP 155.A OD1 no hydrogen 2.717 N/A VAL 218.A N THR 222.A O no hydrogen 2.910 N/A ASN 219.A ND2 THR 222.A OG1 no hydrogen 2.985 N/A ASN 221.A N ASN 219.A OD1 no hydrogen 2.945 N/A ASN 221.A ND2 ASN 219.A OD1 no hydrogen 2.858 N/A THR 222.A N ASN 219.A O no hydrogen 3.276 N/A THR 222.A OG1 ASN 219.A OD1 no hydrogen 2.872 N/A THR 222.A OG1 ASN 257.A OD1 no hydrogen 3.515 N/A VAL 223.A N ASN 257.A O no hydrogen 2.858 N/A VAL 224.A N ARG 216.A O no hydrogen 2.801 N/A ILE 225.A N VAL 259.A O no hydrogen 2.922 N/A VAL 227.A N LEU 261.A O no hydrogen 2.728 N/A ASP 230.A N GLU 228.A OE2 no hydrogen 2.902 N/A GLU 232.A N ASP 230.A OD1 no hydrogen 2.858 N/A ASP 233.A N ASP 230.A O no hydrogen 2.985 N/A ASN 235.A N ASP 233.A OD2 no hydrogen 2.910 N/A TYR 236.A N ASP 233.A O no hydrogen 3.054 N/A LYS 237.A NZ GLU 241.A OE1 no hydrogen 3.561 N/A LYS 237.A NZ GLU 241.A OE2 no hydrogen 2.882 N/A LEU 239.A N ASN 235.A O no hydrogen 3.054 N/A ARG 240.A N TYR 236.A O no hydrogen 2.988 N/A ARG 240.A NH1 GLU 244.A OE2 no hydrogen 2.956 N/A GLU 241.A N LYS 237.A O no hydrogen 2.945 N/A ASN 242.A N PRO 238.A O no hydrogen 3.180 N/A ASN 242.A ND2 ASP 201.A O no hydrogen 2.914 N/A TYR 243.A N LEU 239.A O no hydrogen 2.906 N/A GLU 244.A N ARG 240.A O no hydrogen 2.979 N/A LEU 245.A N GLU 241.A O no hydrogen 2.984 N/A LEU 246.A N ASN 242.A O no hydrogen 2.893 N/A LYS 247.A N TYR 243.A O no hydrogen 3.070 N/A LYS 247.A NZ TYR 243.A OH no hydrogen 3.040 N/A THR 248.A N LEU 245.A O no hydrogen 2.922 N/A THR 248.A OG1 LEU 245.A O no hydrogen 2.740 N/A THR 249.A OG1 GLY 250.A O no hydrogen 3.547 N/A GLY 250.A N LYS 254.A O no hydrogen 2.994 N/A GLY 253.A N GLY 250.A O no hydrogen 2.935 N/A LYS 254.A N ASP 252.A OD1 no hydrogen 2.800 N/A LYS 254.A NZ ASN 221.A OD1 no hydrogen 3.498 N/A ASN 257.A N ASN 221.A O no hydrogen 2.815 N/A VAL 259.A N VAL 223.A O no hydrogen 2.891 N/A LYS 260.A NZ TYR 243.A OH no hydrogen 2.714 N/A LEU 261.A N ILE 225.A O no hydrogen 2.858 N/A TYR 268.A N GLU 271.A O no hydrogen 3.118 N/A GLU 271.A N TYR 268.A O no hydrogen 2.885 N/A ARG 272.A NH1 GLU 234.A OE1 no hydrogen 3.191 N/A ARG 272.A NH2 ASP 233.A OD1 no hydrogen 2.953 N/A LEU 273.A N VAL 266.A O no hydrogen 2.863 N/A ALA 275.A N LEU 273.A O no hydrogen 2.891 N/A SER 276.A OG ASP 214.A O no hydrogen 2.750 N/A TYR 277.A OH ASP 297.A OD1 no hydrogen 2.648 N/A ALA 278.A N SER 276.A OG no hydrogen 3.167 N/A ASN 279.A N SER 276.A O no hydrogen 3.226 N/A TYR 281.A N LEU 288.A O no hydrogen 2.942 N/A TYR 281.A OH THR 16.A OG1 no hydrogen 2.687 N/A ILE 282.A N GLU 9.A OE2 no hydrogen 2.985 N/A ALA 283.A N VAL 286.A O no hydrogen 2.789 N/A ASN 284.A N GLU 49.A OE2 no hydrogen 2.871 N/A ASN 284.A ND2 HIS 13.A O no hydrogen 3.016 N/A THR 285.A N SER 48.A OG no hydrogen 2.896 N/A VAL 287.A N GLU 312.A O no hydrogen 3.028 N/A LEU 288.A N TYR 281.A O no hydrogen 2.926 N/A VAL 289.A N VAL 314.A O no hydrogen 2.901 N/A THR 291.A N ILE 316.A O no hydrogen 2.936 N/A TYR 292.A N ASP 297.A OD1 no hydrogen 2.952 N/A ARG 293.A NE ASP 317.A OD2 no hydrogen 3.073 N/A ARG 293.A NH2 ASP 317.A OD2 no hydrogen 2.820 N/A CYS 294.A N ASP 297.A OD2 no hydrogen 3.056 N/A CYS 294.A SG TYR 277.A OH no hydrogen 3.213 N/A CYS 294.A SG ASP 297.A OD1 no hydrogen 3.656 N/A ARG 296.A NH1 GLU 228.A OE1 no hydrogen 3.538 N/A ASP 297.A N CYS 294.A O no hydrogen 3.101 N/A GLN 298.A NE2 ASP 302.A OD1 no hydrogen 2.911 N/A ALA 300.A N ARG 296.A O no hydrogen 3.033 N/A ILE 301.A N ASP 297.A O no hydrogen 3.033 N/A ASP 302.A N GLN 298.A O no hydrogen 2.921 N/A ILE 303.A N GLN 299.A O no hydrogen 3.114 N/A LEU 304.A N ALA 300.A O no hydrogen 2.978 N/A GLN 305.A N ILE 301.A O no hydrogen 2.793 N/A GLN 305.A NE2 GLN 305.A O no hydrogen 2.997 N/A GLN 305.A NE2 ARG 311.A O no hydrogen 2.839 N/A GLN 306.A N ASP 302.A O no hydrogen 3.059 N/A CYS 307.A N ILE 303.A O no hydrogen 3.122 N/A CYS 307.A SG ILE 303.A O no hydrogen 3.512 N/A PHE 308.A N LEU 304.A O no hydrogen 2.950 N/A ARG 311.A N PHE 308.A O no hydrogen 3.151 N/A ARG 311.A NE ALA 283.A O no hydrogen 2.669 N/A ARG 311.A NH1 TRP 10.A O no hydrogen 2.909 N/A ARG 311.A NH1 ALA 283.A O no hydrogen 3.555 N/A GLU 312.A N THR 285.A O no hydrogen 2.985 N/A VAL 313.A N GLN 305.A OE1 no hydrogen 3.146 N/A VAL 314.A N VAL 287.A O no hydrogen 2.799 N/A ILE 316.A N VAL 289.A O no hydrogen 2.904 N/A CYS 318.A N THR 291.A O no hydrogen 2.917 N/A CYS 318.A SG ILE 316.A O no hydrogen 3.401 N/A SER 319.A N ASP 317.A OD1 no hydrogen 3.171 N/A SER 319.A OG ASP 317.A OD1 no hydrogen 2.628 N/A ILE 322.A N CYS 318.A O no hydrogen 2.901 N/A TRP 323.A N ASP 320.A O no hydrogen 3.171 N/A TRP 323.A NE1 PRO 28.A O no hydrogen 2.907 N/A GLY 324.A N LEU 321.A O no hydrogen 2.825 N/A LEU 325.A N ILE 322.A O no hydrogen 2.773 N/A HIS 329.A N ASN 279.A O no hydrogen 2.989 N/A HIS 329.A ND1 ASP 213.A OD2 no hydrogen 2.711 N/A HIS 329.A NE2 GLU 9.A OE1 no hydrogen 2.638 N/A CYS 330.A SG ASN 279.A OD1 no hydrogen 3.411 N/A VAL 331.A N ALA 327.A O no hydrogen 3.122 N/A VAL 331.A N ILE 328.A O no hydrogen 3.281 N/A THR 332.A N HIS 329.A O no hydrogen 3.406 N/A THR 332.A OG1 ILE 328.A O no hydrogen 3.028 N/A THR 332.A OG1 HIS 329.A O no hydrogen 3.203 N/A HIS 333.A N TRP 17.A O no hydrogen 3.191 N/A HIS 333.A ND1 GLU 334.A O no hydrogen 2.974 N/A GLU 334.A N GLU 334.A OE1 no hydrogen 2.637 N/A GLU 335.A N SER 15.A O no hydrogen 2.907 N/A ALA 337.A N PRO 12.A O no hydrogen 2.952 N/A HIS 343.A N HIS 340.A O no hydrogen 3.098 N/A HIS 344.A N HIS 340.A O no hydrogen 3.205 N/A HIS 344.A N HIS 341.A O no hydrogen 3.191 N/A HIS 344.A ND1 HIS 340.A O no hydrogen 2.923 N/A