Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2epx_A.cif H-bonds (donor, acceptor, hydrogen, D..A dist, D-H..A dist): CYS 15.A SG HIS 36.A NE2 no hydrogen 3.622 N/A CYS 18.A SG HIS 31.A NE2 no hydrogen 3.312 N/A CYS 18.A SG HIS 36.A NE2 no hydrogen 3.722 N/A PHE 22.A N TYR 13.A O PHE 22.A H 2.906 2.038 LEU 28.A N ASN 25.A O LEU 28.A H 2.749 1.913 ILE 29.A N ASN 25.A O ILE 29.A H 3.169 2.224 ARG 30.A N THR 26.A O ARG 30.A H 3.075 2.162 HIS 31.A NE2 HIS 36.A NE2 no hydrogen 2.996 N/A TRP 32.A N LEU 28.A O TRP 32.A H 3.226 2.313 ARG 33.A N ILE 29.A O ARG 33.A H 2.983 2.182 ARG 33.A N ARG 30.A O ARG 33.A H 2.748 2.005 TYR 34.A N HIS 31.A O TYR 34.A H 3.355 2.433 TYR 35.A N HIS 31.A O TYR 35.A H 3.467 2.489 THR 37.A N TRP 32.A O THR 37.A H 3.254 2.306