1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Clore, G.M. Grasberger, B.L. Gronenborn, A.M. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking C4 H9 N O3 119.119 y THREONINE L-peptide linking C11 H12 N2 O2 204.225 y TRYPTOPHAN L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking UK Structure STRUE6 2005 0969-2126 2 669 678 10.1016/S0969-2126(00)00067-8 7922043 High-resolution structure of Ascaris trypsin inhibitor in solution: direct evidence for a pH-induced conformational transition in the reactive site. 1994 US Biochemistry BICHAW 0033 0006-2960 29 183 Sequential Resonance Assignment and Secondary Structure Determination of the Ascaris Trypsin Inhibitor, a Member of a Novel Class of Proteinase Inhibitors 1990 10.2210/pdb1ate/pdb pdb_00001ate 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 6807.853 ASCARIS TRYPSIN INHIBITOR 1 man polymer no no EAEKCTKPNEQWTKCGGCEGTCAQKIVPCTRECKPPRCECIASAGFVRDAQGNCIKFEDCPK EAEKCTKPNEQWTKCGGCEGTCAQKIVPCTRECKPPRCECIASAGFVRDAQGNCIKFEDCPK A polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n pig roundworm Ascaris sample 6253 Ascaris suum database_2 pdbx_database_status pdbx_struct_assembly pdbx_struct_oper_list repository Initial release Version format compliance Version format compliance Database references Derived calculations Other 1 0 1994-08-31 1 1 2008-03-24 1 2 2011-07-13 1 3 2022-02-16 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site Y BNL 1994-05-20 REL 32 THE 3D STRUCTURE OF THE PH 2.4 FORM OF THE ASCARIS TRYPSIN INHIBITOR IN SOLUTION BY NMR IS BASED ON 1083 EXPERIMENTAL RESTRAINTS COMPRISING: 49 SHORT RANGE (1 < |I-J| <=5) AND 216 LONG RANGE (|I-J|>5) INTERRESIDUE INTERPROTON DISTANCE RESTRAINTS, 323 INTRARESIDUE INTERPROTON DISTANCE RESTRAINTS, 46 DISTANCE RESTRAINTS FOR 3 HYDROGEN BONDS, AND 59 PHI, 49 PSI AND 41 CHI1 TORSION ANGLE RESTRAINTS. A COMPLETE LIST OF EXPERIMENTAL RESTRAINTS HAS BEEN DEPOSITED WITH THE BROOKHAVEN DATA BANK. THE STRUCTURES ARE CALCULATED USING THE HYBRID METRIC MATRIX DISTANCE GEOMETRY-DYNAMICAL SIMULATED ANNEALING METHOD DESCRIBED BY: NILGES, M., CLORE, G.M. & GRONENBORN, A.M. (1988) FEBS LETT 29, 317-324 ALL STRUCTURAL STATISTICS ARE GIVEN IN REFERENCE 1. THE RESTRAINED MINIMIZED AVERAGE STRUCTURE (SA)R IS PRESENTED IN PROTEIN DATA BANK ENTRY 1ATB. THIS IS OBTAINED BY FIRST AVERAGING THE COORDINATES OF THE INDIVIDUAL 32 DYNAMICAL SIMULATED ANNEALING SA STRUCTURES BEST FITTED TO RESIDUES 5 - 60, AND SUBJECTING THE RESULTING COORDINATES TO RESTRAINED MINIMIZATION. THE QUANTITY PRESENTED IN COLUMNS 61 - 66 IN ENTRY 1ATB (THE B VALUE FIELD IN X-RAY STRUCTURES) GIVES THE AVERAGE RMS DIFFERENCE BETWEEN THE INDIVIDUAL SA STRUCTURES AND THE MEAN STRUCTURE. THE QUANTITIES IN THIS FIELD OF THE INDIVIDUAL STRUCTURES IN THIS ENTRY HAVE NO MEANING. GLU 1 n 1 GLU 1 A ALA 2 n 2 ALA 2 A GLU 3 n 3 GLU 3 A LYS 4 n 4 LYS 4 A CYS 5 n 5 CYS 5 A THR 6 n 6 THR 6 A LYS 7 n 7 LYS 7 A PRO 8 n 8 PRO 8 A ASN 9 n 9 ASN 9 A GLU 10 n 10 GLU 10 A GLN 11 n 11 GLN 11 A TRP 12 n 12 TRP 12 A THR 13 n 13 THR 13 A LYS 14 n 14 LYS 14 A CYS 15 n 15 CYS 15 A GLY 16 n 16 GLY 16 A GLY 17 n 17 GLY 17 A CYS 18 n 18 CYS 18 A GLU 19 n 19 GLU 19 A GLY 20 n 20 GLY 20 A THR 21 n 21 THR 21 A CYS 22 n 22 CYS 22 A ALA 23 n 23 ALA 23 A GLN 24 n 24 GLN 24 A LYS 25 n 25 LYS 25 A ILE 26 n 26 ILE 26 A VAL 27 n 27 VAL 27 A PRO 28 n 28 PRO 28 A CYS 29 n 29 CYS 29 A THR 30 n 30 THR 30 A ARG 31 n 31 ARG 31 A GLU 32 n 32 GLU 32 A CYS 33 n 33 CYS 33 A LYS 34 n 34 LYS 34 A PRO 35 n 35 PRO 35 A PRO 36 n 36 PRO 36 A ARG 37 n 37 ARG 37 A CYS 38 n 38 CYS 38 A GLU 39 n 39 GLU 39 A CYS 40 n 40 CYS 40 A ILE 41 n 41 ILE 41 A ALA 42 n 42 ALA 42 A SER 43 n 43 SER 43 A ALA 44 n 44 ALA 44 A GLY 45 n 45 GLY 45 A PHE 46 n 46 PHE 46 A VAL 47 n 47 VAL 47 A ARG 48 n 48 ARG 48 A ASP 49 n 49 ASP 49 A ALA 50 n 50 ALA 50 A GLN 51 n 51 GLN 51 A GLY 52 n 52 GLY 52 A ASN 53 n 53 ASN 53 A CYS 54 n 54 CYS 54 A ILE 55 n 55 ILE 55 A LYS 56 n 56 LYS 56 A PHE 57 n 57 PHE 57 A GLU 58 n 58 GLU 58 A ASP 59 n 59 ASP 59 A CYS 60 n 60 CYS 60 A PRO 61 n 61 PRO 61 A LYS 62 n 62 LYS 62 A author_defined_assembly 1 monomeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 A O THR 13 A O THR 13 A N ARG 37 A N ARG 37 A N ASP 49 A N ASP 49 A O ASN 53 A O ASN 53 9 A A HE1 HZ1 TRP LYS 12 14 1.28 21 A A H1 H GLU ALA 1 2 1.28 24 A A HG1 H THR ALA 21 23 1.31 25 A A HE1 HZ1 TRP LYS 12 14 1.32 1 A ARG 31 0.247 SIDE CHAIN 1 A ARG 37 0.280 SIDE CHAIN 1 A ARG 48 0.243 SIDE CHAIN 2 A ARG 31 0.319 SIDE CHAIN 2 A ARG 37 0.110 SIDE CHAIN 2 A ARG 48 0.319 SIDE CHAIN 3 A ARG 31 0.315 SIDE CHAIN 3 A ARG 37 0.281 SIDE CHAIN 3 A ARG 48 0.130 SIDE CHAIN 4 A ARG 31 0.306 SIDE CHAIN 4 A ARG 37 0.288 SIDE CHAIN 4 A ARG 48 0.286 SIDE CHAIN 5 A ARG 31 0.317 SIDE CHAIN 5 A ARG 37 0.241 SIDE CHAIN 5 A ARG 48 0.269 SIDE CHAIN 6 A ARG 31 0.282 SIDE CHAIN 6 A ARG 37 0.280 SIDE CHAIN 6 A ARG 48 0.287 SIDE CHAIN 7 A ARG 31 0.236 SIDE CHAIN 7 A ARG 48 0.109 SIDE CHAIN 8 A ARG 31 0.220 SIDE CHAIN 8 A ARG 37 0.253 SIDE CHAIN 8 A ARG 48 0.219 SIDE CHAIN 9 A ARG 31 0.292 SIDE CHAIN 9 A ARG 37 0.304 SIDE CHAIN 9 A ARG 48 0.214 SIDE CHAIN 10 A ARG 31 0.295 SIDE CHAIN 10 A ARG 37 0.256 SIDE CHAIN 10 A ARG 48 0.238 SIDE CHAIN 11 A ARG 31 0.309 SIDE CHAIN 11 A ARG 37 0.306 SIDE CHAIN 12 A ARG 31 0.106 SIDE CHAIN 12 A ARG 37 0.318 SIDE CHAIN 12 A ARG 48 0.319 SIDE CHAIN 13 A ARG 31 0.262 SIDE CHAIN 13 A ARG 37 0.179 SIDE CHAIN 13 A ARG 48 0.313 SIDE CHAIN 14 A ARG 31 0.139 SIDE CHAIN 14 A ARG 37 0.234 SIDE CHAIN 14 A ARG 48 0.215 SIDE CHAIN 15 A ARG 31 0.305 SIDE CHAIN 15 A ARG 37 0.128 SIDE CHAIN 15 A ARG 48 0.172 SIDE CHAIN 16 A ARG 31 0.115 SIDE CHAIN 16 A ARG 37 0.265 SIDE CHAIN 16 A ARG 48 0.300 SIDE CHAIN 17 A ARG 31 0.158 SIDE CHAIN 17 A ARG 37 0.285 SIDE CHAIN 17 A ARG 48 0.197 SIDE CHAIN 18 A ARG 31 0.316 SIDE CHAIN 18 A ARG 37 0.115 SIDE CHAIN 18 A ARG 48 0.170 SIDE CHAIN 19 A ARG 31 0.269 SIDE CHAIN 19 A ARG 37 0.313 SIDE CHAIN 19 A ARG 48 0.238 SIDE CHAIN 20 A ARG 31 0.242 SIDE CHAIN 20 A ARG 37 0.319 SIDE CHAIN 20 A ARG 48 0.192 SIDE CHAIN 21 A ARG 31 0.314 SIDE CHAIN 21 A ARG 48 0.248 SIDE CHAIN 22 A ARG 31 0.306 SIDE CHAIN 22 A ARG 37 0.279 SIDE CHAIN 22 A ARG 48 0.203 SIDE CHAIN 23 A ARG 31 0.245 SIDE CHAIN 23 A ARG 48 0.236 SIDE CHAIN 24 A ARG 31 0.166 SIDE CHAIN 24 A ARG 37 0.304 SIDE CHAIN 24 A ARG 48 0.239 SIDE CHAIN 25 A ARG 31 0.240 SIDE CHAIN 25 A ARG 37 0.196 SIDE CHAIN 25 A ARG 48 0.319 SIDE CHAIN 26 A ARG 31 0.100 SIDE CHAIN 26 A ARG 37 0.228 SIDE CHAIN 26 A ARG 48 0.216 SIDE CHAIN 27 A ARG 31 0.187 SIDE CHAIN 27 A ARG 37 0.282 SIDE CHAIN 27 A ARG 48 0.279 SIDE CHAIN 28 A ARG 31 0.188 SIDE CHAIN 28 A ARG 37 0.317 SIDE CHAIN 28 A ARG 48 0.246 SIDE CHAIN 29 A ARG 31 0.228 SIDE CHAIN 29 A ARG 37 0.267 SIDE CHAIN 29 A ARG 48 0.275 SIDE CHAIN 30 A ARG 31 0.318 SIDE CHAIN 30 A ARG 37 0.305 SIDE CHAIN 30 A ARG 48 0.214 SIDE CHAIN 31 A ARG 31 0.289 SIDE CHAIN 31 A ARG 37 0.206 SIDE CHAIN 31 A ARG 48 0.268 SIDE CHAIN 32 A ARG 31 0.227 SIDE CHAIN 32 A ARG 37 0.317 SIDE CHAIN 32 A ARG 48 0.317 SIDE CHAIN 1 -6.62 1.00 110.10 103.48 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 1 9.21 1.10 130.40 139.61 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 1 -6.89 1.00 107.30 100.41 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 2 -6.71 1.00 110.10 103.39 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 2 9.85 1.10 130.40 140.25 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 2 -7.26 1.00 107.30 100.04 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 2 -5.61 0.90 133.90 128.29 A A A CG CD2 CE3 TRP TRP TRP 12 12 12 N 3 -6.61 1.00 110.10 103.49 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 3 9.41 1.10 130.40 139.81 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 3 -7.18 1.00 107.30 100.12 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 4 -6.73 1.00 110.10 103.37 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 4 9.63 1.10 130.40 140.03 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 4 -7.23 1.00 107.30 100.07 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 5 -6.65 1.00 110.10 103.45 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 5 9.37 1.10 130.40 139.77 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 5 -7.08 1.00 107.30 100.22 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 6 -6.63 1.00 110.10 103.47 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 6 9.12 1.10 130.40 139.52 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 6 -7.03 1.00 107.30 100.27 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 7 -6.63 1.00 110.10 103.47 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 7 9.28 1.10 130.40 139.68 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 7 -7.01 1.00 107.30 100.29 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 8 -6.66 1.00 110.10 103.44 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 8 9.61 1.10 130.40 140.01 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 8 -7.20 1.00 107.30 100.10 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 9 -6.78 1.00 110.10 103.32 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 9 9.27 1.10 130.40 139.67 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 9 -7.09 1.00 107.30 100.21 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 10 -6.65 1.00 110.10 103.45 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 10 9.32 1.10 130.40 139.72 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 10 -7.04 1.00 107.30 100.26 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 11 -6.67 1.00 110.10 103.43 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 11 8.98 1.10 130.40 139.38 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 11 -6.87 1.00 107.30 100.43 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 12 -6.67 1.00 110.10 103.43 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 12 9.32 1.10 130.40 139.72 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 12 -7.06 1.00 107.30 100.24 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 13 -6.63 1.00 110.10 103.47 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 13 9.39 1.10 130.40 139.79 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 13 -7.17 1.00 107.30 100.13 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 14 -6.68 1.00 110.10 103.42 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 14 9.20 1.10 130.40 139.60 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 14 -6.99 1.00 107.30 100.31 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 15 -6.61 1.00 110.10 103.49 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 15 8.94 1.10 130.40 139.34 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 15 -6.88 1.00 107.30 100.42 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 16 -6.71 1.00 110.10 103.39 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 16 9.36 1.10 130.40 139.76 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 16 -7.06 1.00 107.30 100.24 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 17 -6.62 1.00 110.10 103.48 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 17 9.00 1.10 130.40 139.40 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 17 -6.91 1.00 107.30 100.39 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 18 -6.65 1.00 110.10 103.45 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 18 9.27 1.10 130.40 139.67 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 18 -7.00 1.00 107.30 100.30 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 19 -6.59 1.00 110.10 103.51 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 19 9.16 1.10 130.40 139.56 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 19 -6.94 1.00 107.30 100.36 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 20 -6.61 1.00 110.10 103.49 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 20 9.09 1.10 130.40 139.49 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 20 -6.99 1.00 107.30 100.31 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 21 -6.58 1.00 110.10 103.52 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 21 9.39 1.10 130.40 139.79 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 21 -7.09 1.00 107.30 100.21 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 22 -6.68 1.00 110.10 103.42 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 22 9.21 1.10 130.40 139.61 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 22 -7.01 1.00 107.30 100.29 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 23 -6.58 1.00 110.10 103.52 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 23 9.45 1.10 130.40 139.85 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 23 -7.09 1.00 107.30 100.21 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 24 -6.71 1.00 110.10 103.39 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 24 9.25 1.10 130.40 139.65 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 24 -7.02 1.00 107.30 100.28 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 25 -6.78 1.00 110.10 103.32 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 25 9.36 1.10 130.40 139.76 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 25 -7.05 1.00 107.30 100.25 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 26 -6.63 1.00 110.10 103.47 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 26 9.14 1.10 130.40 139.54 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 26 -6.99 1.00 107.30 100.31 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 27 -6.58 1.00 110.10 103.52 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 27 9.14 1.10 130.40 139.54 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 27 -7.02 1.00 107.30 100.28 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 28 -6.66 1.00 110.10 103.44 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 28 9.19 1.10 130.40 139.59 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 28 -6.93 1.00 107.30 100.37 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 29 -6.56 1.00 110.10 103.54 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 29 9.28 1.10 130.40 139.68 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 29 -7.03 1.00 107.30 100.27 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 30 -6.61 1.00 110.10 103.49 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 30 8.98 1.10 130.40 139.38 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 30 -6.83 1.00 107.30 100.47 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 31 -6.82 1.00 110.10 103.28 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 31 9.52 1.10 130.40 139.92 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 31 -7.15 1.00 107.30 100.15 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 32 -6.65 1.00 110.10 103.45 A A A CG CD1 NE1 TRP TRP TRP 12 12 12 N 32 9.00 1.10 130.40 139.40 A A A NE1 CE2 CZ2 TRP TRP TRP 12 12 12 N 32 -6.89 1.00 107.30 100.41 A A A NE1 CE2 CD2 TRP TRP TRP 12 12 12 N 1 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 2 A A CG CD2 TRP TRP 12 12 -0.123 0.017 1.432 1.309 N 3 A A CG CD2 TRP TRP 12 12 -0.123 0.017 1.432 1.309 N 4 A A CG CD2 TRP TRP 12 12 -0.124 0.017 1.432 1.308 N 5 A A CG CD2 TRP TRP 12 12 -0.123 0.017 1.432 1.309 N 6 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 7 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 8 A A CG CD2 TRP TRP 12 12 -0.123 0.017 1.432 1.309 N 9 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 10 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 11 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 12 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 13 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 14 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 15 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 16 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 17 A A CG CD2 TRP TRP 12 12 -0.118 0.017 1.432 1.314 N 18 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 19 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 20 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 21 A A CG CD2 TRP TRP 12 12 -0.123 0.017 1.432 1.309 N 22 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 23 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 24 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 25 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 26 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 27 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 28 A A CG CD2 TRP TRP 12 12 -0.122 0.017 1.432 1.310 N 29 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 30 A A CG CD2 TRP TRP 12 12 -0.120 0.017 1.432 1.312 N 31 A A CG CD2 TRP TRP 12 12 -0.124 0.017 1.432 1.308 N 32 A A CG CD2 TRP TRP 12 12 -0.121 0.017 1.432 1.311 N 1 A ALA 2 -149.54 48.89 1 A THR 6 -108.17 -66.04 1 A LYS 7 -45.87 153.09 1 A ASN 9 55.98 -78.18 1 A GLU 10 -42.06 95.99 1 A GLU 19 -165.30 -144.71 1 A THR 30 -56.54 -157.34 1 A ARG 31 -74.46 41.46 1 A LYS 56 -44.07 162.12 1 A PRO 61 -55.01 -172.27 2 A ALA 2 -90.63 50.43 2 A THR 6 -73.35 -99.08 2 A ASN 9 60.71 -17.09 2 A GLU 19 -165.30 -144.52 2 A ALA 23 -140.98 -10.27 2 A THR 30 -56.75 -160.14 2 A ARG 31 -74.95 41.28 2 A ARG 37 179.94 159.82 2 A GLU 39 -175.29 -168.15 2 A SER 43 -55.61 -8.16 3 A THR 6 -101.50 -79.78 3 A ASN 9 54.69 -80.64 3 A GLU 10 -42.60 100.20 3 A GLU 19 -160.15 -144.74 3 A THR 30 -137.65 -150.26 3 A ARG 31 -74.07 39.05 3 A GLU 32 -117.70 62.31 4 A ASN 9 56.84 -4.43 4 A GLU 19 -165.04 -155.94 4 A ALA 23 -143.13 -8.31 4 A THR 30 -75.35 -152.99 4 A ARG 31 -74.58 39.11 4 A LYS 34 -45.16 152.74 4 A GLU 39 -172.07 -167.54 4 A SER 43 -58.71 -5.33 4 A PRO 61 -55.74 -176.25 5 A GLU 3 -46.31 92.65 5 A THR 6 -93.30 -72.12 5 A PRO 8 -60.42 -176.05 5 A ASN 9 57.92 -77.27 5 A GLU 10 -49.84 103.24 5 A GLU 19 -150.85 -144.02 5 A THR 30 -130.85 -151.71 5 A ARG 31 -74.31 39.06 5 A LYS 34 -45.59 157.50 5 A SER 43 -60.17 0.08 5 A GLN 51 -78.75 22.94 5 A LYS 56 -47.93 159.50 5 A PRO 61 -56.16 179.29 6 A ALA 2 -170.61 84.70 6 A THR 6 -108.26 -84.29 6 A PRO 8 -60.35 -174.80 6 A ASN 9 56.31 -79.04 6 A GLU 10 -44.03 103.74 6 A GLU 19 -165.09 -144.43 6 A THR 30 -58.56 -152.21 6 A ARG 31 -73.77 37.93 6 A GLU 39 -175.39 -168.25 6 A SER 43 -54.66 -8.25 7 A ALA 2 -167.28 96.82 7 A ASN 9 57.52 -4.34 7 A GLU 19 -161.79 -150.71 7 A THR 30 -57.38 -158.64 7 A ARG 31 -75.98 43.81 7 A GLU 32 -117.03 58.96 7 A GLU 39 -174.07 -168.51 7 A PRO 61 -55.43 -173.32 8 A GLU 3 -53.24 95.37 8 A THR 6 -74.08 -97.07 8 A PRO 8 -56.66 -174.63 8 A ASN 9 57.38 -79.84 8 A GLU 10 -51.72 96.98 8 A GLU 19 -165.35 -144.11 8 A THR 30 -138.15 -153.19 8 A ARG 31 -75.01 40.11 8 A LYS 34 -47.95 153.57 8 A GLU 39 -162.26 -168.66 8 A LYS 56 -49.31 156.31 9 A ALA 2 -90.97 57.24 9 A GLU 3 -46.37 -79.67 9 A ASN 9 56.08 -77.82 9 A GLU 10 -43.19 105.84 9 A GLU 19 -165.33 -144.42 9 A CYS 29 -162.44 117.47 9 A THR 30 -55.73 -163.08 9 A ARG 31 -75.51 40.64 9 A GLU 32 -107.93 71.54 9 A SER 43 -57.01 -7.86 10 A THR 6 -110.26 -73.14 10 A LYS 7 -41.47 152.58 10 A ASN 9 54.36 -81.49 10 A GLU 10 -44.22 99.39 10 A GLU 19 -165.28 -151.17 10 A ALA 23 -141.68 -11.76 10 A THR 30 -80.23 -150.34 10 A ARG 31 -74.60 38.32 10 A LYS 34 -44.41 156.55 10 A GLU 39 -171.58 -159.01 10 A SER 43 -54.57 -9.86 11 A ALA 2 -170.19 108.30 11 A GLU 3 -56.55 99.81 11 A ASN 9 59.91 -75.98 11 A GLU 10 -43.60 105.19 11 A GLU 19 -165.15 -145.52 11 A GLN 24 -150.34 86.15 11 A THR 30 -56.74 -155.81 11 A ARG 31 -73.64 39.08 11 A GLU 32 -92.46 49.98 11 A GLU 39 -171.61 -177.57 11 A LYS 56 -43.83 158.86 11 A PRO 61 -56.48 178.23 12 A ALA 2 -166.36 50.50 12 A THR 6 -110.06 -89.28 12 A LYS 7 -45.99 152.83 12 A PRO 8 -62.61 -174.90 12 A ASN 9 55.06 -82.45 12 A GLU 10 -45.86 102.98 12 A GLU 19 -165.19 -151.00 12 A THR 30 -57.77 -158.41 12 A ARG 31 -76.27 44.44 12 A LYS 56 -42.89 163.04 13 A THR 6 -92.36 -80.09 13 A PRO 8 -62.32 -175.23 13 A ASN 9 55.96 -80.34 13 A GLU 10 -49.87 98.30 13 A GLU 19 -162.38 -151.38 13 A GLN 24 -150.68 89.17 13 A THR 30 -120.45 -150.48 13 A ARG 31 -74.30 38.08 13 A CYS 33 -175.11 96.79 13 A LYS 34 -45.59 157.30 13 A GLU 39 -172.16 -173.22 13 A SER 43 -52.65 -8.66 13 A PRO 61 -55.35 178.40 14 A CYS 5 -127.93 -166.01 14 A THR 6 -95.45 -85.59 14 A PRO 8 -59.23 -174.91 14 A ASN 9 58.79 -78.27 14 A GLU 10 -52.44 100.15 14 A GLU 19 -146.22 -156.45 14 A ALA 23 -140.05 -8.10 14 A THR 30 -54.54 -162.64 14 A ARG 31 -73.78 38.36 14 A GLU 39 -170.93 -170.65 14 A SER 43 -57.26 -3.93 14 A PRO 61 -55.82 -169.27 15 A CYS 5 -103.05 -160.91 15 A THR 6 -85.80 -85.60 15 A PRO 8 -58.10 -174.23 15 A ASN 9 59.69 -76.76 15 A GLU 10 -44.82 102.54 15 A GLU 19 -165.34 -148.04 15 A GLN 24 -151.26 87.70 15 A THR 30 -58.82 -153.41 15 A ARG 31 -74.27 39.01 15 A GLU 32 -99.71 45.44 15 A LYS 34 -44.97 158.25 15 A GLU 39 -173.87 -164.47 15 A GLN 51 -79.42 23.75 16 A ALA 2 -171.34 138.08 16 A ASN 9 62.00 -21.55 16 A GLU 19 -165.05 -144.00 16 A THR 30 -61.73 -149.15 16 A ARG 31 -74.13 38.19 16 A CYS 33 -175.38 104.65 16 A LYS 34 -49.01 157.72 16 A GLU 39 -172.25 -169.63 17 A THR 6 -100.09 -72.97 17 A PRO 8 -62.57 -179.70 17 A ASN 9 56.44 -79.21 17 A GLU 10 -57.61 97.88 17 A GLU 19 -165.30 -144.41 17 A THR 30 -57.68 -153.95 17 A ARG 31 -73.53 38.86 17 A LYS 56 -49.20 154.98 18 A ALA 2 -153.52 86.70 18 A THR 6 -104.11 -86.98 18 A ASN 9 66.39 -26.87 18 A GLU 19 -165.33 -142.62 18 A ALA 23 -140.57 -5.66 18 A THR 30 -133.29 -148.64 18 A ARG 31 -73.98 37.60 18 A CYS 33 -161.95 112.16 18 A LYS 34 -46.11 157.89 18 A GLU 39 -170.07 -166.55 18 A SER 43 -58.93 -9.53 18 A LYS 56 -49.22 155.15 18 A CYS 60 -48.50 159.38 18 A PRO 61 -56.43 -168.58 19 A GLU 3 -62.10 93.10 19 A THR 6 -99.15 -90.52 19 A PRO 8 -60.84 -174.03 19 A ASN 9 55.99 -81.01 19 A GLU 10 -44.97 105.58 19 A GLU 19 -158.29 -144.87 19 A THR 30 -60.48 -144.13 19 A ARG 31 -71.61 35.46 19 A LYS 34 -47.03 157.16 19 A GLU 39 -175.42 -168.40 19 A LYS 56 -48.24 161.92 20 A ALA 2 -45.41 156.33 20 A GLU 3 -66.50 90.20 20 A THR 6 -78.69 -79.94 20 A PRO 8 -60.41 -174.08 20 A ASN 9 53.09 -87.67 20 A GLU 10 -46.63 101.89 20 A GLU 19 -165.15 -146.16 20 A THR 30 -62.11 -153.19 20 A ARG 31 -74.77 39.74 20 A LYS 56 -48.71 159.91 21 A ASN 9 57.23 -78.20 21 A GLU 10 -43.61 102.85 21 A GLU 19 -165.14 -144.66 21 A THR 30 -58.95 -151.35 21 A ARG 31 -74.00 38.25 21 A GLU 32 -98.10 46.61 21 A LYS 34 -45.51 151.48 21 A ARG 37 179.98 161.92 21 A GLU 39 -175.56 -176.06 21 A SER 43 -57.39 -7.38 21 A GLN 51 -79.23 22.85 21 A PRO 61 -54.92 175.96 22 A ALA 2 -168.20 105.33 22 A ASN 9 56.14 -79.55 22 A GLU 10 -43.69 107.23 22 A THR 30 -92.51 -156.41 22 A ARG 31 -75.96 43.34 22 A LYS 56 -45.72 158.84 23 A ALA 2 -173.76 70.62 23 A THR 6 -98.85 -80.38 23 A ASN 9 66.08 -25.31 23 A GLU 19 -165.45 -147.88 23 A THR 30 -86.37 -153.16 23 A ARG 31 -74.90 39.11 23 A LYS 34 -47.49 157.57 23 A GLU 39 -170.52 -171.09 24 A GLU 3 -63.15 92.63 24 A THR 6 -101.95 -66.81 24 A ASN 9 54.83 -81.62 24 A GLU 10 -44.46 104.61 24 A GLU 19 -165.15 -153.46 24 A THR 30 -134.81 -146.31 24 A ARG 31 -72.53 35.86 24 A GLU 32 -107.84 47.01 24 A SER 43 -53.30 -8.27 24 A GLN 51 -79.82 22.38 25 A ASN 9 61.37 -12.61 25 A GLU 19 -153.85 -144.74 25 A THR 30 -137.18 -159.90 25 A ARG 31 -76.80 46.79 25 A GLU 39 -170.15 -167.69 26 A THR 6 -88.92 -95.99 26 A PRO 8 -62.14 -174.64 26 A ASN 9 60.00 -77.46 26 A GLU 10 -58.68 84.68 26 A GLU 19 -164.43 -144.71 26 A CYS 22 -69.80 6.29 26 A THR 30 -95.91 -155.70 26 A ARG 31 -75.62 42.62 26 A GLU 32 -114.40 53.53 26 A GLU 39 -160.66 -168.78 26 A ASN 53 -110.32 -163.13 26 A LYS 56 -46.46 163.50 26 A PRO 61 -55.76 -170.47 27 A THR 6 -77.99 -71.41 27 A PRO 8 -59.46 -177.65 27 A ASN 9 57.48 -78.17 27 A GLU 10 -45.18 97.45 27 A GLU 19 -165.29 -144.71 27 A GLN 24 -150.31 81.38 27 A THR 30 -135.17 -152.52 27 A ARG 31 -74.29 39.22 27 A GLU 32 -103.49 67.00 27 A GLU 39 -167.90 -168.24 27 A SER 43 -56.21 -7.84 27 A ASN 53 -107.32 -166.21 28 A ALA 2 -97.24 50.98 28 A THR 6 -110.39 -81.76 28 A PRO 8 -62.18 -173.83 28 A ASN 9 56.60 -81.66 28 A GLU 10 -56.66 96.26 28 A GLU 19 -165.33 -144.90 28 A ALA 23 -140.30 -14.86 28 A THR 30 -58.94 -150.29 28 A ARG 31 -73.51 38.05 28 A LYS 34 -44.51 157.13 28 A GLU 39 -175.24 -168.19 28 A LYS 56 -48.18 155.39 28 A PRO 61 -56.98 -174.36 29 A LYS 4 -47.49 158.60 29 A THR 6 -68.72 -87.99 29 A PRO 8 -55.32 -174.53 29 A ASN 9 61.21 -76.02 29 A GLU 10 -47.29 102.88 29 A THR 30 -133.60 -145.87 29 A ARG 31 -73.40 36.25 29 A CYS 33 -172.52 104.22 29 A LYS 34 -46.69 157.76 29 A SER 43 -56.83 -4.38 29 A LYS 56 -49.20 164.00 30 A THR 6 -110.35 -86.10 30 A LYS 7 -43.14 151.21 30 A PRO 8 -60.78 -174.67 30 A ASN 9 52.47 -86.03 30 A GLU 10 -45.81 106.01 30 A GLU 19 -165.32 -146.89 30 A ALA 23 -142.42 -7.47 30 A CYS 29 -165.32 113.48 30 A THR 30 -57.97 -157.65 30 A ARG 31 -75.50 42.08 30 A GLU 32 -107.85 46.17 30 A LYS 34 -46.05 153.11 30 A GLU 39 -172.82 -163.69 30 A ASN 53 -110.01 -163.26 30 A LYS 56 -43.50 160.88 30 A PRO 61 -57.16 -166.62 31 A THR 6 -103.86 -74.41 31 A ASN 9 61.22 -16.18 31 A GLU 19 -165.23 -144.39 31 A GLN 24 -151.24 86.52 31 A THR 30 -58.12 -153.41 31 A ARG 31 -73.63 38.36 31 A GLU 32 -99.05 48.53 31 A LYS 34 -46.85 151.94 31 A GLU 39 -175.31 -172.05 31 A SER 43 -59.67 -5.87 31 A LYS 56 -47.90 166.94 32 A ALA 2 -98.34 50.54 32 A THR 6 -110.32 -73.54 32 A ASN 9 55.69 -80.07 32 A GLU 10 -44.24 109.88 32 A GLU 19 -164.64 -144.92 32 A THR 30 -136.13 -150.12 32 A ARG 31 -74.74 39.30 32 A LYS 34 -47.03 157.30 32 A GLU 39 -175.06 -168.12 32 A PRO 61 -56.76 174.73 HIGH-RESOLUTION STRUCTURE OF ASCARIS TRYPSIN INHIBITOR IN SOLUTION: DIRECT EVIDENCE FOR A PH INDUCED CONFORMATIONAL TRANSITION IN THE REACTIVE SITE 1 Y N disulf 2.019 A CYS 5 A SG CYS 5 1_555 A CYS 38 A SG CYS 38 1_555 disulf 2.021 A CYS 15 A SG CYS 15 1_555 A CYS 33 A SG CYS 33 1_555 disulf 2.017 A CYS 18 A SG CYS 18 1_555 A CYS 29 A SG CYS 29 1_555 disulf 2.017 A CYS 22 A SG CYS 22 1_555 A CYS 60 A SG CYS 60 1_555 disulf 2.021 A CYS 40 A SG CYS 40 1_555 A CYS 54 A SG CYS 54 1_555 PROTEINASE INHIBITOR(TRYPSIN) PROTEINASE INHIBITOR(TRYPSIN) ITR1_ASCSU UNP 1 1 P19398 EAEKCTKPNEQWTKCGGCEGTCAQKIVPCTRECKPPRCECIASAGFVRDAQGNCIKFEDCPK 1 62 1ATE 1 62 P19398 A 1 1 62 2 2 anti-parallel anti-parallel A GLN 11 A GLN 11 A THR 13 A THR 13 A ARG 37 A ARG 37 A GLU 39 A GLU 39 A PHE 46 A PHE 46 A ASP 49 A ASP 49 A ASN 53 A ASN 53 A LYS 56 A LYS 56 1 P 1