Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 7zsa_2.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 5.A OG SER 1.A O no hydrogen 3.409 N/A SER 5.A OG LEU 2.A O no hydrogen 2.943 N/A VAL 6.A N LEU 2.A O no hydrogen 3.520 N/A THR 7.A N LYS 3.A O no hydrogen 2.927 N/A THR 7.A OG1 LYS 3.A O no hydrogen 2.281 N/A GLN 8.A N HIS 4.A O no hydrogen 2.887 N/A TYR 9.A N SER 5.A O no hydrogen 2.938 N/A LEU 10.A N VAL 6.A O no hydrogen 2.909 N/A GLU 11.A N THR 7.A O no hydrogen 2.946 N/A GLU 12.A N GLN 8.A O no hydrogen 2.942 N/A ILE 13.A N TYR 9.A O no hydrogen 3.243 N/A ILE 13.A N LEU 10.A O no hydrogen 3.260 N/A GLN 18.A N PRO 14.A O no hydrogen 2.837 N/A GLN 18.A NE2 LEU 10.A O no hydrogen 2.656 N/A ASN 19.A N GLN 15.A O no hydrogen 2.900 N/A ARG 20.A N GLN 16.A O no hydrogen 2.928 N/A LEU 21.A N VAL 17.A O no hydrogen 2.840 N/A TYR 22.A N GLN 18.A O no hydrogen 2.928 N/A TYR 22.A OH LEU 80.A O no hydrogen 3.020 N/A THR 23.A OG1 ARG 20.A O no hydrogen 3.370 N/A CYS 28.A SG TYR 22.A O no hydrogen 3.237 N/A CYS 28.A SG SER 24.A O no hydrogen 3.507 N/A CYS 28.A SG SER 103.A OG no hydrogen 3.218 N/A LEU 29.A N PRO 25.A O no hydrogen 2.905 N/A ALA 30.A N ALA 26.A O no hydrogen 2.932 N/A ILE 31.A N THR 27.A O no hydrogen 2.855 N/A TYR 32.A N CYS 28.A O no hydrogen 2.903 N/A TYR 32.A OH LYS 40.A O no hydrogen 3.203 N/A ARG 33.A NE LEU 29.A O no hydrogen 3.563 N/A ILE 34.A N ILE 31.A O no hydrogen 2.976 N/A LYS 40.A N PRO 36.A O no hydrogen 2.861 N/A PHE 41.A N PRO 37.A O no hydrogen 2.910 N/A PHE 42.A N LEU 38.A O no hydrogen 2.947 N/A ILE 43.A N ALA 39.A O no hydrogen 2.912 N/A MET 44.A N LYS 40.A O no hydrogen 2.952 N/A ALA 45.A N PHE 41.A O no hydrogen 2.894 N/A MET 46.A N PHE 42.A O no hydrogen 2.941 N/A VAL 53.A N ILE 94.A O no hydrogen 2.775 N/A LEU 55.A N LEU 92.A O no hydrogen 3.301 N/A ASP 59.A N LEU 55.A O no hydrogen 2.913 N/A LYS 60.A N LEU 56.A O no hydrogen 2.877 N/A TRP 61.A N ASP 57.A O no hydrogen 2.937 N/A SER 64.A N ASN 63.A OD1 no hydrogen 2.604 N/A SER 64.A OG ASN 63.A OD1 no hydrogen 3.408 N/A PHE 70.A N GLY 66.A O no hydrogen 3.082 N/A GLN 71.A N LYS 67.A O no hydrogen 2.959 N/A ASN 72.A N LEU 68.A O no hydrogen 2.738 N/A ALA 73.A N GLN 69.A O no hydrogen 2.716 N/A ILE 74.A N PHE 70.A O no hydrogen 2.701 N/A LYS 75.A N GLN 71.A O no hydrogen 2.617 N/A SER 76.A N ASN 72.A O no hydrogen 2.877 N/A MET 77.A N ALA 73.A O no hydrogen 2.725 N/A LYS 78.A N ILE 74.A O no hydrogen 2.541 N/A SER 79.A N SER 76.A O no hydrogen 2.962 N/A SER 79.A OG LYS 75.A O no hydrogen 2.702 N/A LEU 80.A N SER 76.A O no hydrogen 3.022 N/A ILE 84.A N ASN 95.A O no hydrogen 2.855 N/A ASN 86.A N MET 93.A O no hydrogen 2.884 N/A SER 88.A N THR 91.A O no hydrogen 2.919 N/A SER 88.A OG ASN 86.A OD1 no hydrogen 2.294 N/A SER 89.A OG SER 88.A O no hydrogen 2.648 N/A SER 89.A OG THR 91.A OG1 no hydrogen 3.330 N/A THR 91.A N SER 88.A O no hydrogen 2.904 N/A THR 91.A OG1 SER 88.A O no hydrogen 2.357 N/A THR 91.A OG1 SER 89.A OG no hydrogen 3.330 N/A MET 93.A N ASN 86.A O no hydrogen 2.899 N/A ILE 94.A N VAL 53.A O no hydrogen 2.746 N/A ASN 95.A N ILE 84.A O no hydrogen 2.958 N/A ASN 97.A N LEU 82.A O no hydrogen 2.954 N/A ASN 97.A ND2 ASN 19.A OD1 no hydrogen 3.525 N/A PHE 100.A N ASN 97.A OD1 no hydrogen 2.823 N/A LYS 101.A N ASN 97.A O no hydrogen 2.767 N/A LYS 101.A NZ GLU 50.A OE1 no hydrogen 3.170 N/A LYS 101.A NZ GLU 50.A OE2 no hydrogen 3.481 N/A ILE 102.A N PRO 98.A O no hydrogen 2.927 N/A SER 103.A N THR 99.A O no hydrogen 2.901 N/A SER 103.A OG TYR 22.A O no hydrogen 3.539 N/A SER 103.A OG THR 23.A O no hydrogen 3.365 N/A SER 103.A OG SER 24.A O no hydrogen 2.865 N/A LEU 104.A N PHE 100.A O no hydrogen 2.885 N/A ARG 105.A N LYS 101.A O no hydrogen 2.923 N/A ARG 105.A NH2 VAL 47.A O no hydrogen 3.259 N/A ARG 105.A NH2 GLU 50.A OE2 no hydrogen 2.391 N/A ASN 106.A N ILE 102.A O no hydrogen 2.910 N/A ALA 107.A N SER 103.A O no hydrogen 2.909 N/A LEU 108.A N LEU 104.A O no hydrogen 2.912 N/A THR 109.A N ARG 105.A O no hydrogen 2.904 N/A THR 109.A OG1 ARG 105.A O no hydrogen 2.725 N/A THR 109.A OG1 GLY 110.A O no hydrogen 3.351 N/A GLY 110.A N ASN 106.A O no hydrogen 3.083 N/A GLU 112.A N GLU 112.A OE2 no hydrogen 2.599 N/A SER 116.A N VAL 113.A O no hydrogen 3.267 N/A SER 116.A OG VAL 113.A O no hydrogen 3.224 N/A ASN 124.A ND2 GLY 230.A O no hydrogen 3.662 N/A ASP 132.A N SER 127.A O no hydrogen 2.611 N/A GLU 133.A N GLU 133.A OE1 no hydrogen 2.987 N/A TYR 134.A N LEU 130.A O no hydrogen 2.950 N/A SER 135.A N LEU 131.A O no hydrogen 2.943 N/A SER 135.A OG LEU 131.A O no hydrogen 3.247 N/A SER 135.A OG ASP 132.A O no hydrogen 2.844 N/A ALA 136.A N ASP 132.A O no hydrogen 2.900 N/A ASN 137.A N GLU 133.A O no hydrogen 2.823 N/A LYS 138.A N TYR 134.A O no hydrogen 2.967 N/A TRP 139.A N SER 135.A O no hydrogen 2.945 N/A GLU 140.A N ALA 136.A O no hydrogen 2.830 N/A THR 141.A N ASN 137.A O no hydrogen 2.912 N/A ILE 142.A N LYS 138.A O no hydrogen 3.009 N/A LEU 143.A N TRP 139.A O no hydrogen 2.899 N/A HIS 144.A N GLU 140.A O no hydrogen 2.823 N/A PHE 145.A N THR 141.A O no hydrogen 2.977 N/A MET 146.A N ILE 142.A O no hydrogen 2.893 N/A VAL 147.A N LEU 143.A O no hydrogen 2.937 N/A GLY 148.A N HIS 144.A O no hydrogen 3.066 N/A THR 149.A OG1 PRO 150.A O no hydrogen 3.547 N/A LYS 153.A NZ ILE 154.A O no hydrogen 2.666 N/A ASN 161.A N GLU 157.A O no hydrogen 2.931 N/A ASN 161.A ND2 GLU 157.A OE2 no hydrogen 2.826 N/A LEU 162.A N LYS 158.A O no hydrogen 2.914 N/A LEU 163.A N VAL 159.A O no hydrogen 2.970 N/A LYS 164.A N LEU 160.A O no hydrogen 2.860 N/A LYS 164.A NZ LEU 160.A O no hydrogen 3.542 N/A HIS 165.A N ASN 161.A O no hydrogen 2.934 N/A SER 166.A N LEU 163.A O no hydrogen 3.221 N/A SER 166.A OG LEU 163.A O no hydrogen 2.441 N/A SER 166.A OG LEU 168.A O no hydrogen 2.437 N/A LYS 179.A N GLU 170.A O no hydrogen 2.918 N/A GLY 184.A N THR 181.A O no hydrogen 3.141 N/A GLY 184.A N THR 181.A OG1 no hydrogen 3.263 N/A PHE 185.A N THR 181.A O no hydrogen 3.397 N/A GLN 186.A N ASN 182.A O no hydrogen 2.966 N/A GLN 186.A NE2 GLN 340.A OE1 no hydrogen 2.450 N/A PHE 187.A N GLU 183.A O no hydrogen 2.841 N/A LEU 188.A N GLY 184.A O no hydrogen 2.933 N/A LEU 189.A N PHE 185.A O no hydrogen 2.907 N/A LEU 189.A N GLN 186.A O no hydrogen 3.189 N/A GLN 190.A N GLN 186.A O no hydrogen 3.415 N/A GLN 190.A NE2 GLN 186.A O no hydrogen 3.554 N/A SER 194.A N ASN 193.A OD1 no hydrogen 2.642 N/A SER 194.A OG GLU 191.A O no hydrogen 2.579 N/A GLN 195.A N GLU 191.A O no hydrogen 2.927 N/A GLN 195.A NE2 PHE 187.A O no hydrogen 2.676 N/A LEU 196.A N ILE 192.A O no hydrogen 2.877 N/A TRP 197.A N ASN 193.A O no hydrogen 2.966 N/A THR 198.A N SER 194.A O no hydrogen 2.890 N/A THR 198.A OG1 SER 194.A O no hydrogen 3.182 N/A THR 198.A OG1 GLN 195.A O no hydrogen 2.800 N/A LEU 199.A N GLN 195.A O no hydrogen 2.991 N/A LEU 200.A N LEU 196.A O no hydrogen 2.895 N/A LEU 201.A N TRP 197.A O no hydrogen 2.878 N/A GLN 202.A N THR 198.A O no hydrogen 2.968 N/A GLN 202.A NE2 HIS 165.A ND1 no hydrogen 3.142 N/A TYR 203.A N LEU 199.A O no hydrogen 2.956 N/A LEU 204.A N LEU 200.A O no hydrogen 2.851 N/A LYS 205.A N LEU 201.A O no hydrogen 2.932 N/A MET 206.A N GLN 202.A O no hydrogen 2.920 N/A LEU 214.A N ASP 213.A OD1 no hydrogen 2.836 N/A VAL 217.A N ASP 213.A O no hydrogen 3.037 N/A LEU 218.A N LEU 214.A O no hydrogen 2.988 N/A HIS 219.A N VAL 215.A O no hydrogen 2.899 N/A HIS 219.A NE2 LEU 21.A O no hydrogen 2.754 N/A PHE 220.A N ASP 216.A O no hydrogen 2.897 N/A ILE 221.A N VAL 217.A O no hydrogen 2.935 N/A PHE 222.A N LEU 218.A O no hydrogen 3.017 N/A MET 223.A N HIS 219.A O no hydrogen 2.857 N/A LEU 224.A N PHE 220.A O no hydrogen 2.874 N/A GLY 225.A N ILE 221.A O no hydrogen 2.970 N/A ALA 226.A N PHE 222.A O no hydrogen 2.926 N/A TYR 233.A N PHE 265.A O no hydrogen 2.912 N/A LYS 234.A NZ ASP 236.A OD1 no hydrogen 2.227 N/A LEU 238.A N ILE 235.A O no hydrogen 3.065 N/A SER 239.A OG THR 241.A OG1 no hydrogen 2.348 N/A THR 241.A OG1 ASP 216.A OD2 no hydrogen 3.204 N/A THR 241.A OG1 SER 239.A OG no hydrogen 2.348 N/A GLN 242.A N SER 239.A OG no hydrogen 3.025 N/A GLN 242.A NE2 ASP 216.A O no hydrogen 3.155 N/A ARG 243.A N SER 239.A O no hydrogen 2.632 N/A ILE 244.A N GLU 240.A O no hydrogen 3.002 N/A MET 245.A N THR 241.A O no hydrogen 2.885 N/A LEU 246.A N GLN 242.A O no hydrogen 2.864 N/A GLN 247.A N ARG 243.A O no hydrogen 2.994 N/A ASP 248.A N ILE 244.A O no hydrogen 2.931 N/A MET 249.A N MET 245.A O no hydrogen 2.896 N/A ARG 250.A N LEU 246.A O no hydrogen 2.891 N/A ASP 251.A N GLN 247.A O no hydrogen 2.974 N/A TYR 252.A N ASP 248.A O no hydrogen 2.906 N/A GLY 253.A N MET 249.A O no hydrogen 2.839 N/A LEU 254.A N MET 249.A O no hydrogen 2.804 N/A PHE 256.A N TYR 266.A O no hydrogen 2.634 N/A HIS 259.A N ASP 262.A OD2 no hydrogen 3.106 N/A HIS 259.A ND1 SER 260.A O no hydrogen 3.297 N/A PHE 265.A N TYR 233.A O no hydrogen 2.906 N/A TYR 266.A N PHE 256.A O no hydrogen 2.650 N/A THR 268.A N LEU 254.A O no hydrogen 3.237 N/A THR 268.A OG1 GLY 253.A O no hydrogen 3.339 N/A THR 268.A OG1 LEU 254.A O no hydrogen 2.465 N/A MET 273.A N LYS 269.A O no hydrogen 2.896 N/A LEU 274.A N ALA 271.A O no hydrogen 3.314 N/A THR 275.A OG1 LEU 272.A O no hydrogen 3.196 N/A THR 278.A OG1 ASP 277.A OD1 no hydrogen 3.518 N/A GLY 282.A N TYR 295.A O no hydrogen 2.776 N/A SER 283.A N PRO 280.A O no hydrogen 3.462 N/A SER 283.A OG ALA 349.A O no hydrogen 3.237 N/A LEU 284.A N HIS 348.A O no hydrogen 3.086 N/A ILE 285.A N TYR 293.A O no hydrogen 2.874 N/A PHE 290.A N GLU 287.A O no hydrogen 3.135 N/A ILE 292.A N GLY 321.A O no hydrogen 2.859 N/A TYR 293.A N ILE 285.A O no hydrogen 2.931 N/A SER 294.A N VAL 319.A O no hydrogen 2.982 N/A SER 294.A OG VAL 319.A O no hydrogen 3.161 N/A TYR 295.A N SER 283.A O no hydrogen 2.867 N/A SER 296.A OG SER 298.A O no hydrogen 3.376 N/A SER 296.A OG GLN 301.A OE1 no hydrogen 3.015 N/A SER 298.A OG GLN 301.A OE1 no hydrogen 3.142 N/A GLN 301.A NE2 ASP 281.A O no hydrogen 2.932 N/A ALA 303.A N PRO 299.A O no hydrogen 2.905 N/A VAL 304.A N LEU 300.A O no hydrogen 2.885 N/A LEU 305.A N GLN 301.A O no hydrogen 2.897 N/A SER 306.A N ILE 302.A O no hydrogen 2.927 N/A PHE 308.A N LEU 305.A O no hydrogen 3.370 N/A VAL 309.A N LEU 305.A O no hydrogen 2.946 N/A HIS 310.A N GLN 322.A O no hydrogen 3.067 N/A LYS 312.A N LEU 320.A O no hydrogen 2.502 N/A ALA 313.A N LEU 320.A O no hydrogen 2.923 N/A PHE 315.A N MET 318.A O no hydrogen 2.485 N/A VAL 319.A N SER 294.A O no hydrogen 2.913 N/A LEU 320.A N ALA 313.A O no hydrogen 2.859 N/A GLY 321.A N ILE 292.A O no hydrogen 2.921 N/A GLN 322.A N HIS 310.A O no hydrogen 2.942 N/A ILE 323.A N PHE 290.A O no hydrogen 2.771 N/A THR 324.A OG1 SER 327.A OG no hydrogen 3.212 N/A GLU 326.A N GLU 326.A OE1 no hydrogen 2.739 N/A SER 327.A N THR 324.A OG1 no hydrogen 3.322 N/A SER 327.A OG PHE 308.A O no hydrogen 2.972 N/A SER 327.A OG THR 324.A O no hydrogen 3.083 N/A SER 327.A OG THR 324.A OG1 no hydrogen 3.212 N/A ARG 329.A N ARG 325.A O no hydrogen 2.925 N/A ARG 330.A N GLU 326.A O no hydrogen 2.885 N/A ARG 330.A NH1 SER 306.A O no hydrogen 3.542 N/A ALA 331.A N SER 327.A O no hydrogen 2.921 N/A LEU 332.A N ILE 328.A O no hydrogen 2.899 N/A THR 333.A N ARG 329.A O no hydrogen 2.892 N/A THR 333.A OG1 ARG 329.A O no hydrogen 3.143 N/A THR 333.A OG1 ARG 330.A O no hydrogen 2.823 N/A ASN 334.A N ARG 330.A O no hydrogen 2.912 N/A GLY 335.A N LEU 332.A O no hydrogen 2.982 N/A ILE 336.A N ALA 331.A O no hydrogen 2.976 N/A ALA 338.A N GLN 390.A OE1 no hydrogen 2.764 N/A GLN 340.A NE2 ASN 182.A O no hydrogen 3.540 N/A ILE 341.A N THR 337.A O no hydrogen 3.419 N/A ILE 342.A N ALA 338.A O no hydrogen 2.905 N/A ALA 343.A N ASP 339.A O no hydrogen 2.900 N/A TYR 344.A N GLN 340.A O no hydrogen 2.901 N/A LEU 345.A N ILE 341.A O no hydrogen 2.933 N/A GLU 346.A N ILE 342.A O no hydrogen 2.907 N/A THR 347.A N ALA 343.A O no hydrogen 2.953 N/A THR 347.A OG1 ALA 343.A O no hydrogen 3.157 N/A THR 347.A OG1 HIS 348.A ND1 no hydrogen 2.973 N/A HIS 348.A N TYR 344.A O no hydrogen 3.312 N/A HIS 348.A ND1 THR 347.A OG1 no hydrogen 2.973 N/A GLN 352.A N HIS 350.A ND1 no hydrogen 3.375 N/A ARG 354.A N HIS 350.A O no hydrogen 3.303 N/A ARG 354.A NH2 GLU 346.A O no hydrogen 3.108 N/A ARG 355.A N PRO 351.A O no hydrogen 2.924 N/A LEU 356.A N GLN 352.A O no hydrogen 2.952 N/A ALA 357.A N MET 353.A O no hydrogen 2.841 N/A GLU 358.A N ARG 354.A O no hydrogen 2.981 N/A GLU 359.A N ARG 355.A O no hydrogen 2.981 N/A GLU 359.A N GLU 359.A OE1 no hydrogen 3.174 N/A LYS 360.A N LEU 356.A O no hydrogen 2.886 N/A LEU 361.A N ALA 357.A O no hydrogen 2.872 N/A GLU 362.A N GLU 358.A O no hydrogen 2.891 N/A LYS 363.A N GLU 359.A O no hydrogen 2.912 N/A LYS 364.A N LYS 360.A O no hydrogen 2.900 N/A LEU 365.A N LEU 361.A O no hydrogen 2.887 N/A GLU 366.A N GLU 362.A O no hydrogen 2.929 N/A LEU 367.A N LYS 364.A O no hydrogen 3.089 N/A ASP 368.A N LYS 364.A O no hydrogen 2.578 N/A ASN 370.A ND2 ASP 368.A OD1 no hydrogen 3.365 N/A CYS 371.A SG ASP 368.A OD2 no hydrogen 3.310 N/A CYS 371.A SG GLU 373.A OE2 no hydrogen 3.728 N/A LYS 372.A NZ PRO 369.A O no hydrogen 3.132 N/A ASP 384.A N PRO 380.A O no hydrogen 2.896 N/A GLN 385.A N THR 381.A O no hydrogen 2.921 N/A ILE 386.A N VAL 382.A O no hydrogen 2.905 N/A ARG 387.A N VAL 383.A O no hydrogen 2.945 N/A LEU 388.A N ASP 384.A O no hydrogen 2.878 N/A TRP 389.A N GLN 385.A O no hydrogen 2.939 N/A GLN 390.A N ILE 386.A O no hydrogen 2.880 N/A LEU 391.A N ARG 387.A O no hydrogen 2.886 N/A GLU 392.A N LEU 388.A O no hydrogen 2.890 N/A SER 402.A N ILE 438.A O no hydrogen 2.926 N/A SER 402.A OG ASN 443.A OD1 no hydrogen 2.349 N/A TYR 404.A N PHE 436.A O no hydrogen 2.889 N/A GLU 408.A N GLU 408.A OE1 no hydrogen 2.941 N/A SER 410.A OG ASP 431.A OD1 no hydrogen 3.156 N/A SER 410.A OG ASP 431.A OD2 no hydrogen 3.080 N/A TYR 413.A N THR 409.A O no hydrogen 3.491 N/A TYR 413.A OH LYS 435.A O no hydrogen 2.492 N/A ASN 414.A N SER 410.A O no hydrogen 2.899 N/A LEU 415.A N GLN 411.A O no hydrogen 2.905 N/A LEU 416.A N GLU 412.A O no hydrogen 2.928 N/A SER 417.A N TYR 413.A O no hydrogen 2.888 N/A SER 417.A OG TYR 413.A O no hydrogen 3.287 N/A SER 417.A OG ASN 414.A O no hydrogen 2.747 N/A LYS 418.A N ASN 414.A O no hydrogen 2.907 N/A LYS 418.A NZ ASN 414.A O no hydrogen 2.889 N/A TYR 419.A N LEU 415.A O no hydrogen 2.908 N/A TYR 419.A OH GLN 445.A O no hydrogen 3.231 N/A ALA 420.A N LEU 416.A O no hydrogen 2.923 N/A GLN 421.A N SER 417.A O no hydrogen 2.892 N/A ASP 422.A N LYS 418.A O no hydrogen 2.907 N/A ILE 423.A N TYR 419.A O no hydrogen 3.359 N/A GLY 424.A N GLN 421.A O no hydrogen 3.236 N/A VAL 425.A N ALA 420.A O no hydrogen 3.160 N/A LEU 427.A N PHE 437.A O no hydrogen 3.124 N/A LYS 429.A NZ SER 417.A OG no hydrogen 3.114 N/A ASP 430.A N TYR 413.A OH no hydrogen 2.491 N/A ASP 430.A N LYS 435.A O no hydrogen 2.910 N/A LYS 434.A NZ ASP 431.A O no hydrogen 3.256 N/A LYS 434.A NZ ASP 431.A OD1 no hydrogen 2.658 N/A LYS 435.A N ASP 430.A O no hydrogen 2.979 N/A PHE 436.A N TYR 404.A O no hydrogen 2.959 N/A PHE 437.A N TRP 428.A O no hydrogen 2.896 N/A ILE 438.A N SER 402.A O no hydrogen 2.889 N/A SER 439.A N VAL 425.A O no hydrogen 3.032 N/A SER 439.A OG GLU 441.A OE2 no hydrogen 2.807 N/A ASN 443.A N LYS 440.A O no hydrogen 3.345 N/A VAL 446.A N GLY 442.A O no hydrogen 3.526 N/A LEU 447.A N ASN 443.A O no hydrogen 2.902 N/A ASP 448.A N SER 444.A O no hydrogen 2.912 N/A PHE 449.A N GLN 445.A O no hydrogen 2.930 N/A ALA 450.A N VAL 446.A O no hydrogen 2.911 N/A LYS 451.A N LEU 447.A O no hydrogen 2.905 N/A ARG 452.A N ASP 448.A O no hydrogen 3.363 N/A