Finding intermodel H-bonds Finding intramodel H-bonds Constraints relaxed by 0.4 angstroms and 20 degrees Models used: #0 2em3_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 2.735 1.816 CYS 15.A SG HIS 31.A NE2 no hydrogen 3.707 N/A CYS 15.A SG HIS 35.A NE2 no hydrogen 3.641 N/A CYS 18.A SG HIS 31.A NE2 no hydrogen 3.324 N/A CYS 18.A SG HIS 35.A NE2 no hydrogen 3.718 N/A PHE 22.A N TYR 13.A O PHE 22.A H 2.972 2.021 LEU 28.A N GLN 24.A O LEU 28.A H 3.586 2.616 ALA 29.A N LYS 25.A O ALA 29.A H 2.715 1.803 GLN 30.A N ALA 26.A O GLN 30.A H 3.113 2.209 HIS 31.A N HIS 27.A O HIS 31.A H 2.785 1.875 HIS 31.A NE2 HIS 35.A NE2 no hydrogen 3.063 N/A GLN 32.A N LEU 28.A O GLN 32.A H 2.967 2.009 GLN 32.A NE2 ALA 29.A O GLN 32.A HE21 3.598 2.625 THR 34.A N HIS 31.A O THR 34.A H 2.640 1.811 THR 36.A N GLN 32.A O THR 36.A H 3.312 2.400