Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2pka_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): SER 11.A N GLU 8.A O no hydrogen 2.765 N/A SER 11.A OG GLU 8.A O no hydrogen 2.678 N/A HIS 12.A NE2 HIS 54.A ND1 no hydrogen 2.775 N/A GLN 15.A N HIS 12.A O no hydrogen 3.121 N/A VAL 16.A N GLY 28.A O no hydrogen 3.201 N/A ALA 17.A N TRP 50.A O no hydrogen 2.935 N/A ILE 18.A N CYS 26.A O no hydrogen 2.783 N/A TYR 19.A N GLU 48.A O no hydrogen 2.922 N/A HIS 20.A N SER 23.A O no hydrogen 2.813 N/A TYR 21.A OH ASP 45.A OD1 no hydrogen 2.656 N/A SER 22.A N GLU 48.A OE2 no hydrogen 2.944 N/A SER 22.A OG GLU 48.A OE2 no hydrogen 3.517 N/A SER 23.A N HIS 20.A O no hydrogen 3.140 N/A GLN 25.A N ILE 18.A O no hydrogen 3.030 N/A GLN 25.A NE2 SER 23.A OG no hydrogen 2.997 N/A CYS 26.A N ILE 18.A O no hydrogen 3.089 N/A VAL 29.A N LEU 37.A O no hydrogen 2.778 N/A LEU 30.A N TRP 14.A O no hydrogen 2.800 N/A VAL 31.A N TRP 35.A O no hydrogen 2.974 N/A TRP 35.A N ASN 32.A O no hydrogen 2.733 N/A LEU 37.A N VAL 29.A O no hydrogen 2.841 N/A THR 38.A OG1 GLY 27.A O no hydrogen 2.807 N/A CYS 42.A N ALA 39.A O no hydrogen 2.860 N/A CYS 42.A SG THR 38.A OG1 no hydrogen 3.743 N/A LYS 43.A N ALA 40.A O no hydrogen 3.145 N/A ASN 44.A N TYR 47.A OH no hydrogen 2.877 N/A ASN 44.A ND2 ASN 46.A O no hydrogen 3.047 N/A ASN 46.A ND2 GLU 48.A OE1 no hydrogen 2.773 N/A TYR 47.A OH ASP 71.A OD2 no hydrogen 2.631 N/A GLU 48.A N TYR 19.A O no hydrogen 2.812 N/A VAL 49.A N PHE 66.A O no hydrogen 2.808 N/A TRP 50.A N ALA 17.A O no hydrogen 2.955 N/A LEU 51.A N GLN 64.A O no hydrogen 2.845 N/A ARG 53.A NE GLU 60.A OE2 no hydrogen 2.845 N/A ARG 53.A NH1 LEU 56.A O no hydrogen 3.273 N/A ARG 53.A NH2 LEU 56.A O no hydrogen 2.745 N/A ARG 53.A NH2 GLU 58.A O no hydrogen 2.576 N/A HIS 54.A N GLU 60.A OE1 no hydrogen 2.970 N/A HIS 54.A ND1 HIS 12.A NE2 no hydrogen 2.775 N/A HIS 54.A NE2 GLU 6.A OE2 no hydrogen 2.698 N/A ASN 55.A N GLU 60.A OE1 no hydrogen 2.724 N/A GLU 58.A N ASN 55.A O no hydrogen 3.359 N/A THR 62.A OG1 GLY 52.A O no hydrogen 2.748 N/A ALA 63.A N GLU 60.A O no hydrogen 2.939 N/A GLN 64.A N LEU 51.A O no hydrogen 2.954 N/A PHE 66.A N VAL 49.A O no hydrogen 2.792 N/A GLY 76.A N HIS 74.A ND1 no hydrogen 2.880 N/A PHE 77.A N HIS 74.A O no hydrogen 3.058 N/A