Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2el4_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): CYS 15.A N LYS 20.A O CYS 15.A H 3.132 2.184 CYS 15.A SG HIS 31.A NE2 no hydrogen 3.505 N/A CYS 15.A SG HIS 35.A NE2 no hydrogen 3.583 N/A CYS 18.A SG HIS 31.A NE2 no hydrogen 3.515 N/A CYS 18.A SG HIS 35.A NE2 no hydrogen 3.700 N/A PHE 22.A N TYR 13.A O PHE 22.A H 2.724 1.809 GLN 27.A N LEU 24.A O GLN 27.A H 3.047 2.296 LEU 28.A N LEU 24.A O LEU 28.A H 3.511 2.605 ILE 29.A N LYS 25.A O ILE 29.A H 2.763 1.840 VAL 30.A N SER 26.A O VAL 30.A H 3.330 2.454 HIS 31.A N GLN 27.A O HIS 31.A H 2.889 1.978 GLN 32.A N LEU 28.A O GLN 32.A H 2.780 1.815 ARG 33.A N VAL 30.A O ARG 33.A H 2.884 2.035