Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2ab8_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): THR 1.A N PRO 76.A O no hydrogen 2.966 N/A GLY 2.A N PRO 76.A O no hydrogen 2.977 N/A ARG 5.A N SER 78.A O no hydrogen 2.802 N/A PHE 7.A N ILE 154.A O no hydrogen 2.915 N/A ALA 8.A N GLY 80.A O no hydrogen 2.959 N/A ILE 9.A N TYR 156.A O no hydrogen 3.100 N/A GLY 10.A N MET 82.A O no hydrogen 3.148 N/A ASN 11.A ND2 TYR 160.A O no hydrogen 3.142 N/A LEU 14.A N GLY 116.A O no hydrogen 2.958 N/A ASP 15.A N LEU 57.A O no hydrogen 2.826 N/A LEU 16.A N CYS 118.A O no hydrogen 2.878 N/A VAL 17.A N THR 55.A O no hydrogen 2.982 N/A ALA 18.A N VAL 120.A O no hydrogen 3.126 N/A VAL 20.A N ILE 122.A O no hydrogen 3.031 N/A SER 22.A OG ASN 123.A OD1 no hydrogen 3.494 N/A SER 22.A OG GLU 124.A OE2 no hydrogen 2.991 N/A PHE 24.A N PRO 21.A O no hydrogen 2.760 N/A ASP 26.A N SER 22.A O no hydrogen 3.122 N/A GLU 27.A N SER 23.A O no hydrogen 2.903 N/A PHE 28.A N PHE 24.A O no hydrogen 3.121 N/A PHE 29.A N ASP 26.A O no hydrogen 3.147 N/A LEU 30.A N LEU 25.A O no hydrogen 2.694 N/A GLY 33.A N THR 128.A OG1 no hydrogen 2.930 N/A ASP 34.A N LYS 31.A O no hydrogen 2.972 N/A THR 36.A N LEU 129.A O no hydrogen 2.909 N/A ALA 38.A N THR 131.A O no hydrogen 2.865 N/A GLN 42.A N THR 39.A O no hydrogen 2.896 N/A MET 43.A N PRO 40.A O no hydrogen 3.373 N/A ILE 45.A N GLN 42.A O no hydrogen 2.965 N/A TYR 46.A OH CYS 130.A O no hydrogen 2.779 N/A SER 47.A OG ARG 44.A O no hydrogen 2.920 N/A THR 48.A N ARG 44.A O no hydrogen 2.986 N/A THR 48.A OG1 ARG 44.A O no hydrogen 2.640 N/A LEU 49.A N ILE 45.A O no hydrogen 2.847 N/A ASP 50.A N SER 47.A O no hydrogen 3.328 N/A GLN 51.A N THR 48.A O no hydrogen 3.438 N/A GLN 51.A NE2 THR 48.A O no hydrogen 3.128 N/A PHE 52.A N LEU 49.A O no hydrogen 2.886 N/A ASN 53.A N ASP 50.A O no hydrogen 3.156 N/A ASN 53.A ND2 ASP 50.A O no hydrogen 3.696 N/A THR 55.A N VAL 17.A O no hydrogen 2.838 N/A LEU 57.A N ASP 15.A O no hydrogen 3.031 N/A GLY 59.A N ILE 13.A O no hydrogen 2.565 N/A SER 61.A OG ASP 309.A OD1 no hydrogen 2.548 N/A ASN 64.A N GLY 60.A O no hydrogen 2.854 N/A ASN 64.A ND2 PRO 58.A O no hydrogen 3.643 N/A SER 65.A N SER 61.A O no hydrogen 3.085 N/A SER 65.A OG SER 61.A O no hydrogen 3.481 N/A SER 65.A OG ASP 309.A O no hydrogen 2.679 N/A VAL 66.A N ALA 62.A O no hydrogen 2.998 N/A ARG 67.A N LEU 63.A O no hydrogen 2.982 N/A ARG 67.A NH1 GLU 101.A OE1 no hydrogen 2.884 N/A ARG 67.A NH2 SER 346.A OG no hydrogen 2.775 N/A VAL 68.A N ASN 64.A O no hydrogen 3.267 N/A VAL 68.A N SER 65.A O no hydrogen 3.232 N/A VAL 69.A N SER 65.A O no hydrogen 3.178 N/A GLN 70.A N VAL 66.A O no hydrogen 2.775 N/A GLN 70.A NE2 LYS 75.A O no hydrogen 2.830 N/A LYS 71.A N ARG 67.A O no hydrogen 2.929 N/A LEU 72.A N VAL 68.A O no hydrogen 3.045 N/A LEU 73.A N VAL 69.A O no hydrogen 2.987 N/A ARG 74.A N GLN 70.A O no hydrogen 2.809 N/A LYS 75.A N LEU 73.A O no hydrogen 2.676 N/A GLY 77.A N GLY 102.A O no hydrogen 2.775 N/A SER 78.A N GLN 70.A OE1 no hydrogen 2.890 N/A SER 78.A OG LYS 75.A O no hydrogen 2.507 N/A ALA 79.A N GLN 70.A OE1 no hydrogen 3.165 N/A GLY 80.A N VAL 6.A O no hydrogen 2.779 N/A TYR 81.A N ALA 104.A O no hydrogen 2.786 N/A MET 82.A N ALA 8.A O no hydrogen 3.053 N/A ILE 85.A N MET 108.A O.A no hydrogen 2.824 N/A ILE 85.A N MET 108.A O.B no hydrogen 2.918 N/A GLY 86.A N THR 115.A OG1 no hydrogen 2.928 N/A ARG 90.A NH1 THR 115.A O no hydrogen 2.907 N/A GLY 91.A N ASP 88.A O no hydrogen 3.059 N/A GLY 91.A N ASP 88.A OD2 no hydrogen 3.101 N/A VAL 93.A N PRO 89.A O no hydrogen 3.003 N/A LEU 94.A N ARG 90.A O no hydrogen 3.016 N/A LYS 95.A N.A GLY 91.A O no hydrogen 2.950 N/A LYS 95.A N.B GLY 91.A O no hydrogen 2.951 N/A LYS 95.A NZ.B ASP 99.A OD1 no hydrogen 3.382 N/A LYS 95.A NZ.B THR 105.A OG1 no hydrogen 2.693 N/A GLU 96.A N GLN 92.A O no hydrogen 2.956 N/A LEU 97.A N.A VAL 93.A O no hydrogen 3.011 N/A LEU 97.A N.B VAL 93.A O no hydrogen 3.012 N/A CYS 98.A N LEU 94.A O no hydrogen 3.111 N/A CYS 98.A SG LEU 94.A O no hydrogen 3.471 N/A ASP 99.A N LYS 95.A O.A no hydrogen 2.963 N/A ASP 99.A N LYS 95.A O.B no hydrogen 2.952 N/A LYS 100.A N GLU 96.A O no hydrogen 2.981 N/A GLU 101.A N CYS 98.A O no hydrogen 3.004 N/A GLY 102.A N ASP 99.A O no hydrogen 2.918 N/A LEU 103.A N CYS 98.A O no hydrogen 3.398 N/A ALA 104.A N ALA 79.A O no hydrogen 3.038 N/A ARG 106.A N TYR 81.A O no hydrogen 3.068 N/A ARG 106.A NH1 ASP 144.A OD1 no hydrogen 2.674 N/A ARG 106.A NH1 ASP 144.A OD2 no hydrogen 3.536 N/A ARG 106.A NH2 ASP 144.A OD1 no hydrogen 3.423 N/A ARG 106.A NH2 ASP 144.A OD2 no hydrogen 3.144 N/A MET 108.A N.A GLY 83.A O no hydrogen 2.894 N/A MET 108.A N.B GLY 83.A O no hydrogen 2.915 N/A ALA 110.A N ILE 85.A O no hydrogen 2.876 N/A GLY 112.A N ASP 87.A OD1 no hydrogen 3.351 N/A GLY 112.A N ASP 87.A OD2 no hydrogen 3.253 N/A GLN 113.A N ALA 110.A O no hydrogen 3.177 N/A THR 115.A N ASP 88.A OD1 no hydrogen 2.909 N/A THR 115.A OG1 ASP 88.A OD2 no hydrogen 2.677 N/A VAL 117.A N HIS 132.A O no hydrogen 2.990 N/A CYS 118.A N LEU 14.A O no hydrogen 3.017 N/A CYS 118.A SG THR 131.A OG1 no hydrogen 3.237 N/A ALA 119.A N CYS 130.A O no hydrogen 2.881 N/A VAL 120.A N LEU 16.A O no hydrogen 2.883 N/A LEU 121.A N THR 128.A O no hydrogen 2.808 N/A ILE 122.A N ALA 18.A O no hydrogen 2.921 N/A ASN 123.A N GLU 126.A O no hydrogen 2.766 N/A ASN 123.A ND2 SER 22.A OG no hydrogen 3.410 N/A ASN 123.A ND2 GLU 124.A OE2 no hydrogen 3.407 N/A GLU 126.A N ASN 123.A O no hydrogen 2.885 N/A THR 128.A N LEU 121.A O no hydrogen 2.782 N/A LEU 129.A N ASP 34.A O no hydrogen 3.097 N/A CYS 130.A N ALA 119.A O no hydrogen 3.085 N/A THR 131.A N THR 36.A O no hydrogen 2.811 N/A HIS 132.A N VAL 117.A O no hydrogen 2.796 N/A ALA 135.A N SER 114.A O no hydrogen 2.779 N/A CYS 136.A N LEU 133.A O no hydrogen 3.010 N/A CYS 136.A SG PRO 12.A O no hydrogen 3.241 N/A CYS 136.A SG LEU 133.A O no hydrogen 3.362 N/A GLY 137.A N GLY 134.A O no hydrogen 3.157 N/A SER 138.A N ALA 135.A O no hydrogen 2.867 N/A SER 138.A OG ALA 135.A O no hydrogen 2.667 N/A PHE 139.A N CYS 136.A O no hydrogen 3.267 N/A ARG 140.A NH1 GLY 137.A O no hydrogen 3.056 N/A ARG 140.A NH1 PHE 139.A O no hydrogen 2.822 N/A TRP 145.A N PRO 142.A O no hydrogen 3.088 N/A TRP 145.A NE1 GLU 171.A OE2 no hydrogen 2.939 N/A THR 147.A N ASP 144.A O no hydrogen 3.044 N/A PHE 148.A N ASP 144.A O no hydrogen 3.240 N/A ALA 149.A N TRP 145.A O no hydrogen 2.917 N/A SER 150.A N THR 147.A O no hydrogen 3.105 N/A SER 150.A OG THR 146.A O no hydrogen 3.479 N/A SER 150.A OG THR 147.A O no hydrogen 2.715 N/A ALA 152.A N ALA 149.A O no hydrogen 3.037 N/A PHE 155.A N ILE 183.A O no hydrogen 2.828 N/A TYR 156.A N PHE 7.A O no hydrogen 2.811 N/A ALA 157.A N THR 185.A O no hydrogen 3.118 N/A ALA 159.A N ASN 187.A O no hydrogen 2.880 N/A TYR 160.A N SER 189.A OG no hydrogen 3.280 N/A THR 161.A N THR 158.A O no hydrogen 2.942 N/A THR 161.A OG1 THR 158.A O no hydrogen 2.761 N/A LEU 162.A N ALA 159.A O no hydrogen 2.907 N/A THR 163.A N TYR 160.A O no hydrogen 3.176 N/A THR 163.A OG1 TYR 160.A O no hydrogen 2.734 N/A ALA 164.A N THR 161.A O no hydrogen 3.261 N/A LYS 167.A N THR 165.A OG1 no hydrogen 3.199 N/A ASN 168.A N THR 165.A O no hydrogen 3.358 N/A LEU 170.A N PRO 166.A O no hydrogen 2.992 N/A GLU 171.A N LYS 167.A O no hydrogen 2.919 N/A VAL 172.A N ASN 168.A O no hydrogen 3.126 N/A ALA 173.A N ALA 169.A O no hydrogen 2.884 N/A GLY 174.A N LEU 170.A O no hydrogen 2.764 N/A TYR 175.A N GLU 171.A O no hydrogen 3.083 N/A TYR 175.A N VAL 172.A O no hydrogen 3.129 N/A ALA 176.A N VAL 172.A O no hydrogen 3.306 N/A HIS 177.A N ALA 173.A O no hydrogen 2.912 N/A ILE 179.A N ALA 176.A O no hydrogen 3.198 N/A ALA 182.A N ILE 179.A O no hydrogen 3.018 N/A ILE 183.A N LEU 153.A O no hydrogen 2.725 N/A PHE 184.A N ASN 209.A OD1 no hydrogen 2.769 N/A THR 185.A N PHE 155.A O no hydrogen 2.740 N/A THR 185.A OG1 PHE 155.A O no hydrogen 2.771 N/A LEU 186.A N ILE 210.A O no hydrogen 2.879 N/A ASN 187.A N ALA 157.A O no hydrogen 3.141 N/A ASN 187.A ND2 TYR 156.A OH no hydrogen 3.030 N/A LEU 188.A N PHE 212.A O no hydrogen 2.952 N/A SER 189.A N ASN 187.A OD1 no hydrogen 2.845 N/A SER 189.A OG ASN 187.A O no hydrogen 3.410 N/A ALA 190.A N LEU 188.A O no hydrogen 2.713 N/A CYS 193.A N ALA 190.A O no hydrogen 3.026 N/A VAL 194.A N PRO 191.A O no hydrogen 3.203 N/A LEU 196.A N PHE 192.A O no hydrogen 2.827 N/A TYR 197.A N CYS 193.A O no hydrogen 3.128 N/A LYS 198.A N GLU 195.A O no hydrogen 3.227 N/A MET 201.A N TYR 197.A O no hydrogen 2.763 N/A GLN 202.A N LYS 198.A O no hydrogen 2.981 N/A SER 203.A N ASP 199.A O no hydrogen 3.127 N/A LEU 204.A N ALA 200.A O no hydrogen 2.861 N/A LEU 205.A N MET 201.A O no hydrogen 2.739 N/A LEU 206.A N SER 203.A O no hydrogen 3.160 N/A HIS 207.A N LEU 204.A O no hydrogen 2.889 N/A HIS 207.A ND1 SER 203.A O no hydrogen 2.781 N/A THR 208.A N LEU 205.A O no hydrogen 3.006 N/A THR 208.A OG1 LEU 204.A O no hydrogen 2.927 N/A ASN 209.A N PHE 184.A O no hydrogen 2.863 N/A ASN 209.A ND2 THR 263.A O no hydrogen 2.897 N/A ILE 210.A N PHE 184.A O no hydrogen 3.210 N/A LEU 211.A N LEU 265.A O no hydrogen 2.911 N/A PHE 212.A N LEU 186.A O no hydrogen 2.745 N/A GLY 213.A N VAL 267.A O no hydrogen 3.141 N/A ASN 214.A N GLU 217.A OE2 no hydrogen 2.911 N/A GLU 217.A N ASN 214.A OD1 no hydrogen 2.933 N/A PHE 218.A N ASN 214.A O no hydrogen 3.093 N/A ALA 219.A N GLU 215.A O no hydrogen 2.965 N/A HIS 220.A N GLU 216.A O no hydrogen 3.049 N/A LEU 221.A N GLU 217.A O no hydrogen 2.937 N/A ALA 222.A N PHE 218.A O no hydrogen 2.877 N/A LYS 223.A N ALA 219.A O no hydrogen 3.054 N/A VAL 224.A N HIS 220.A O no hydrogen 2.844 N/A HIS 225.A N LEU 221.A O no hydrogen 2.938 N/A ASN 226.A N LYS 223.A O no hydrogen 3.343 N/A LEU 227.A N ALA 222.A O no hydrogen 2.782 N/A LYS 232.A N ALA 229.A O no hydrogen 2.654 N/A LYS 232.A NZ GLU 245.A OE1 no hydrogen 2.873 N/A LYS 232.A NZ GLU 245.A OE2 no hydrogen 3.059 N/A THR 233.A N ALA 229.A O no hydrogen 3.061 N/A THR 233.A OG1 ALA 229.A O no hydrogen 3.456 N/A LEU 235.A N LYS 232.A O no hydrogen 2.952 N/A THR 237.A OG1 GLU 215.A OE2 no hydrogen 2.706 N/A ALA 238.A N SER 236.A OG no hydrogen 3.097 N/A ASN 239.A N SER 236.A O no hydrogen 3.041 N/A LYS 240.A NZ GLU 290.A OE1 no hydrogen 2.960 N/A ALA 243.A N ASN 239.A O no hydrogen 2.988 N/A VAL 244.A N LYS 240.A O no hydrogen 2.896 N/A GLU 245.A N GLU 241.A O no hydrogen 3.124 N/A VAL 246.A N HIS 242.A O no hydrogen 2.922 N/A CYS 247.A N ALA 243.A O no hydrogen 2.885 N/A CYS 247.A SG ALA 243.A O no hydrogen 3.406 N/A CYS 247.A SG ILE 276.A O no hydrogen 3.840 N/A THR 248.A N VAL 244.A O no hydrogen 2.903 N/A THR 248.A OG1 VAL 244.A O no hydrogen 2.694 N/A GLY 249.A N GLU 245.A O no hydrogen 2.933 N/A ALA 250.A N VAL 246.A O no hydrogen 2.917 N/A LEU 251.A N CYS 247.A O no hydrogen 2.947 N/A ARG 252.A N GLY 249.A O no hydrogen 3.110 N/A LEU 253.A N ALA 250.A O no hydrogen 2.844 N/A LEU 254.A N LEU 251.A O no hydrogen 2.919 N/A THR 255.A N LEU 251.A O no hydrogen 2.965 N/A THR 255.A OG1 LEU 251.A O no hydrogen 3.262 N/A ALA 256.A N ARG 252.A O no hydrogen 2.882 N/A GLN 258.A N THR 255.A O no hydrogen 2.990 N/A ASN 259.A ND2 ALA 282.A O no hydrogen 2.959 N/A ALA 262.A N THR 260.A OG1 no hydrogen 3.103 N/A LYS 264.A NZ LEU 206.A O no hydrogen 3.380 N/A LYS 264.A NZ THR 208.A O no hydrogen 2.758 N/A LYS 264.A NZ LEU 254.A O no hydrogen 2.882 N/A LEU 265.A N ASN 209.A O no hydrogen 2.721 N/A VAL 266.A N.A ALA 278.A O no hydrogen 2.968 N/A VAL 266.A N.B ALA 278.A O no hydrogen 2.961 N/A VAL 267.A N LEU 211.A O no hydrogen 2.773 N/A MET 268.A N ILE 276.A O no hydrogen 2.803 N/A THR 269.A N GLY 213.A O no hydrogen 2.901 N/A THR 269.A OG1 GLY 213.A O no hydrogen 3.471 N/A ARG 270.A NE THR 237.A O no hydrogen 2.991 N/A ARG 270.A NH1 PRO 274.A O no hydrogen 2.814 N/A ARG 270.A NH2 THR 237.A O no hydrogen 2.782 N/A ASN 273.A N ARG 270.A O no hydrogen 2.924 N/A VAL 275.A N VAL 291.A O no hydrogen 2.899 N/A ILE 276.A N MET 268.A O no hydrogen 3.160 N/A ALA 277.A N HIS 289.A O no hydrogen 2.957 N/A ALA 278.A N VAL 266.A O.A no hydrogen 2.975 N/A ALA 278.A N VAL 266.A O.B no hydrogen 2.968 N/A GLU 279.A N VAL 287.A O.A no hydrogen 2.812 N/A GLU 279.A N VAL 287.A O.B no hydrogen 2.812 N/A GLN 280.A N LYS 264.A O no hydrogen 2.964 N/A THR 281.A N THR 285.A O.A no hydrogen 2.898 N/A THR 281.A N THR 285.A O.B no hydrogen 2.882 N/A THR 281.A OG1 ASP 283.A OD1 no hydrogen 3.320 N/A THR 281.A OG1 THR 285.A O.A no hydrogen 2.710 N/A THR 281.A OG1 THR 285.A O.B no hydrogen 2.722 N/A THR 281.A OG1 THR 285.A OG1.A no hydrogen 2.655 N/A GLY 284.A N THR 281.A O no hydrogen 2.916 N/A THR 285.A N.A ASP 283.A OD1 no hydrogen 2.970 N/A THR 285.A N.B ASP 283.A OD1 no hydrogen 2.974 N/A THR 285.A OG1.A THR 281.A OG1 no hydrogen 2.655 N/A THR 285.A OG1.A ASP 283.A OD1 no hydrogen 2.735 N/A VAL 287.A N.A GLU 279.A O no hydrogen 2.840 N/A VAL 287.A N.B GLU 279.A O no hydrogen 2.842 N/A HIS 289.A N ALA 277.A O no hydrogen 2.723 N/A VAL 291.A N VAL 275.A O no hydrogen 2.932 N/A LYS 300.A N ALA 297.A O no hydrogen 2.758 N/A ILE 301.A N ALA 298.A O no hydrogen 3.277 N/A VAL 302.A N ILE 340.A O no hydrogen 2.867 N/A ASP 303.A N ILE 340.A O no hydrogen 3.411 N/A ASN 305.A N ASP 303.A OD2 no hydrogen 2.837 N/A ASN 305.A ND2 ASP 303.A OD1 no hydrogen 2.743 N/A ALA 307.A N THR 304.A O no hydrogen 3.232 N/A ALA 310.A N GLY 306.A O no hydrogen 3.005 N/A PHE 311.A N ALA 307.A O no hydrogen 2.882 N/A VAL 312.A N GLY 308.A O no hydrogen 3.080 N/A GLY 313.A N ASP 309.A O no hydrogen 3.027 N/A GLY 314.A N ALA 310.A O no hydrogen 2.931 N/A PHE 315.A N PHE 311.A O no hydrogen 2.860 N/A LEU 316.A N VAL 312.A O no hydrogen 2.843 N/A TYR 317.A N GLY 313.A O no hydrogen 2.997 N/A ALA 318.A N GLY 314.A O no hydrogen 2.956 N/A LEU 319.A N PHE 315.A O no hydrogen 2.838 N/A SER 320.A N LEU 316.A O no hydrogen 2.977 N/A SER 320.A OG TYR 317.A O no hydrogen 2.631 N/A SER 320.A OG GLN 321.A OE1 no hydrogen 3.087 N/A GLN 321.A N TYR 317.A O no hydrogen 3.262 N/A GLN 321.A N ALA 318.A O no hydrogen 2.975 N/A GLY 322.A N LEU 319.A O no hydrogen 2.949 N/A LYS 323.A N ALA 318.A O no hydrogen 3.149 N/A GLN 327.A N THR 324.A OG1 no hydrogen 3.164 N/A CYS 328.A N THR 324.A O no hydrogen 2.808 N/A CYS 328.A SG PHE 315.A O no hydrogen 3.850 N/A CYS 328.A SG LYS 323.A O no hydrogen 3.715 N/A CYS 328.A SG THR 324.A O no hydrogen 3.240 N/A ILE 329.A N VAL 325.A O no hydrogen 3.039 N/A MET 330.A N LYS 326.A O no hydrogen 2.970 N/A CYS 331.A N GLN 327.A O no hydrogen 3.020 N/A CYS 331.A SG GLY 314.A O no hydrogen 3.204 N/A GLY 332.A N CYS 328.A O no hydrogen 2.998 N/A ASN 333.A N ILE 329.A O no hydrogen 2.823 N/A ALA 334.A N MET 330.A O no hydrogen 2.945 N/A CYS 335.A N CYS 331.A O no hydrogen 3.045 N/A CYS 335.A SG CYS 331.A O no hydrogen 3.453 N/A ALA 336.A N GLY 332.A O no hydrogen 2.959 N/A GLN 337.A N ASN 333.A O no hydrogen 2.893 N/A GLN 337.A NE2 PRO 294.A O no hydrogen 2.567 N/A ASP 338.A N ALA 334.A O no hydrogen 3.158 N/A VAL 339.A N CYS 335.A O no hydrogen 3.190 N/A ILE 340.A N ALA 336.A O no hydrogen 3.095 N/A GLN 341.A N ASP 338.A O no hydrogen 3.164 N/A GLN 341.A NE2 GLN 337.A O no hydrogen 2.963 N/A HIS 342.A ND1 ASP 338.A O no hydrogen 2.805 N/A HIS 342.A NE2 SER 346.A O no hydrogen 2.975 N/A SER 348.A N ASP 338.A OD2 no hydrogen 2.819 N/A SER 348.A OG ASP 338.A OD1 no hydrogen 2.658 N/A SER 348.A OG ASP 338.A OD2 no hydrogen 3.455 N/A PHE 351.A N SER 348.A OG no hydrogen 3.281 N/A