0.010741 0.006201 0.000000 0.000000 0.012403 0.000000 0.000000 0.000000 0.016000 0.00000 0.00000 0.00000 Perona, J.J. Fletterick, R.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 6 90.00 90.00 120.00 93.100 93.100 62.500 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 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking H2 O 18.015 WATER non-polymer C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE 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 C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking UK J.Mol.Biol. JMOBAK 0070 0022-2836 230 934 949 10.1006/jmbi.1993.1211 8478942 Relocating a negative charge in the binding pocket of trypsin. 1993 UK J.Mol.Biol. JMOBAK 0070 0022-2836 230 919 Crystal Structures of Rat Anionic Trypsin Complexed with the Protein Inhibitors Appi and Bpti 1993 US Biochemistry BICHAW 0033 0006-2960 29 10018 X-Ray Crystal Structure of the Protease Inhibitor Domain of Alzheimer'S Amyloid Beta-Protein Precursor 1990 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 1 x-ray 1 1.0 23814.838 TRYPSIN 3.4.21.4 1 man polymer 6261.992 AMYLOID BETA-PROTEIN PRECURSOR INHIBITOR DOMAIN (APPI) 1 man polymer 18.015 water 141 nat water no no IVGGYTCQENSVPYQVSLNSGYHFCGGSLINDQWVVSAAHCYKSRIQVRLGEHNINVLEGNEQFVNAAKIIKHPNFDRKT LNNDIMLIKLSSPVKLNARVATVALPSSCAPAGTQCLISGWGNTLSSGVNEPDLLQCLDAPLLPQADCEASYPGKITDNM VCVGFLEGGKGSCQGDSGGPVVCNGELQGIVSWGYGCALPDNPDVYTKVCNYVDWIQDTIAAN IVGGYTCQENSVPYQVSLNSGYHFCGGSLINDQWVVSAAHCYKSRIQVRLGEHNINVLEGNEQFVNAAKIIKHPNFDRKT LNNDIMLIKLSSPVKLNARVATVALPSSCAPAGTQCLISGWGNTLSSGVNEPDLLQCLDAPLLPQADCEASYPGKITDNM VCVGFLEGGKGSCQGDSGGPVVCNGELQGIVSWGYGCALPDNPDVYTKVCNYVDWIQDTIAAN E polypeptide(L) no no VREVCSEQAETGPCRAMISRWYFDVTEGKCAPFFYGGCGGNRNNFDTEEYCMAVCG VREVCSEQAETGPCRAMISRWYFDVTEGKCAPFFYGGCGGNRNNFDTEEYCMAVCG I 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 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 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 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 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 Norway rat Rattus sample 10116 Rattus norvegicus 32644 unidentified 2.60 52.66 pdbx_database_status struct_conf struct_conf_type repository Initial release Version format compliance Version format compliance Derived calculations Other 1 0 1994-05-31 1 1 2008-03-03 1 2 2011-07-13 1 3 2017-11-29 _pdbx_database_status.process_site Y BNL 1992-12-17 REL HOH water THE APPI INHIBITOR REPRESENTS A KUNITZ-TYPE (BPTI-LIKE) SERINE PROTEASE INHIBITOR WHICH POSSESSES 45 PER CENT SEQUENCE IDENTITY AND A HIGH DEGREE OF STRUCTURAL SIMILARITY WITH BPTI. THIS INHIBITOR DOMAIN IS DERIVED FROM THE AMYLOID BETA-PROTEIN PRECURSOR POLYPEPTIDE, AND IS INVOLVED IN THE ABNORMAL DEPOSITION OF CEREBRAL AMYLOID DEPOSITS IN INDIVIDUALS WITH ALZHEIMER'S DISEASE. SEQUENCE ADVISORY NOTICE DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. SWISS-PROT ENTRY NAME: TRY2_RAT SWISS-PROT RESIDUE PDB SEQRES NAME NUMBER NAME CHAIN SEQ/INSERT CODE ASP 84 ASN E 79 ILE 88 VAL E 83 THE SEQUENCE FOR TRYPSIN IN THIS STRUCTURE WAS TAKEN FROM GENEMBL WHICH DIFFERS FROM THE SWISSPROT SEQUENCE. HOH 248 3 HOH HOH 248 E HOH 249 3 HOH HOH 249 E HOH 250 3 HOH HOH 250 E HOH 251 3 HOH HOH 251 E HOH 252 3 HOH HOH 252 E HOH 253 3 HOH HOH 253 E HOH 254 3 HOH HOH 254 E HOH 255 3 HOH HOH 255 E HOH 256 3 HOH HOH 256 E HOH 258 3 HOH HOH 258 E HOH 259 3 HOH HOH 259 E HOH 261 3 HOH HOH 261 E HOH 262 3 HOH HOH 262 E HOH 263 3 HOH HOH 263 E HOH 265 3 HOH HOH 265 E HOH 266 3 HOH HOH 266 E HOH 267 3 HOH HOH 267 E HOH 268 3 HOH HOH 268 E HOH 269 3 HOH HOH 269 E HOH 271 3 HOH HOH 271 E HOH 272 3 HOH HOH 272 E HOH 273 3 HOH HOH 273 E HOH 274 3 HOH HOH 274 E HOH 275 3 HOH HOH 275 E HOH 277 3 HOH HOH 277 E HOH 278 3 HOH HOH 278 E HOH 279 3 HOH HOH 279 E HOH 282 3 HOH HOH 282 E HOH 285 3 HOH HOH 285 E HOH 287 3 HOH HOH 287 E HOH 290 3 HOH HOH 290 E HOH 291 3 HOH HOH 291 E HOH 294 3 HOH HOH 294 E HOH 298 3 HOH HOH 298 E HOH 299 3 HOH HOH 299 E HOH 301 3 HOH HOH 301 E HOH 304 3 HOH HOH 304 E HOH 306 3 HOH HOH 306 E HOH 307 3 HOH HOH 307 E HOH 308 3 HOH HOH 308 E HOH 310 3 HOH HOH 310 E HOH 311 3 HOH HOH 311 E HOH 312 3 HOH HOH 312 E HOH 315 3 HOH HOH 315 E HOH 317 3 HOH HOH 317 E HOH 318 3 HOH HOH 318 E HOH 320 3 HOH HOH 320 E HOH 323 3 HOH HOH 323 E HOH 325 3 HOH HOH 325 E HOH 328 3 HOH HOH 328 E HOH 329 3 HOH HOH 329 E HOH 332 3 HOH HOH 332 E HOH 333 3 HOH HOH 333 E HOH 334 3 HOH HOH 334 E HOH 335 3 HOH HOH 335 E HOH 336 3 HOH HOH 336 E HOH 339 3 HOH HOH 339 E HOH 340 3 HOH HOH 340 E HOH 342 3 HOH HOH 342 E HOH 344 3 HOH HOH 344 E HOH 346 3 HOH HOH 346 E HOH 348 3 HOH HOH 348 E HOH 349 3 HOH HOH 349 E HOH 350 3 HOH HOH 350 E HOH 354 3 HOH HOH 354 E HOH 355 3 HOH HOH 355 E HOH 371 3 HOH HOH 371 E HOH 387 3 HOH HOH 387 E HOH 395 3 HOH HOH 395 E HOH 403 3 HOH HOH 403 E HOH 409 3 HOH HOH 409 E HOH 416 3 HOH HOH 416 E HOH 417 3 HOH HOH 417 E HOH 419 3 HOH HOH 419 E HOH 420 3 HOH HOH 420 E HOH 422 3 HOH HOH 422 E HOH 423 3 HOH HOH 423 E HOH 424 3 HOH HOH 424 E HOH 425 3 HOH HOH 425 E HOH 427 3 HOH HOH 427 E HOH 428 3 HOH HOH 428 E HOH 429 3 HOH HOH 429 E HOH 430 3 HOH HOH 430 E HOH 431 3 HOH HOH 431 E HOH 432 3 HOH HOH 432 E HOH 433 3 HOH HOH 433 E HOH 434 3 HOH HOH 434 E HOH 435 3 HOH HOH 435 E HOH 436 3 HOH HOH 436 E HOH 437 3 HOH HOH 437 E HOH 438 3 HOH HOH 438 E HOH 439 3 HOH HOH 439 E HOH 440 3 HOH HOH 440 E HOH 441 3 HOH HOH 441 E HOH 442 3 HOH HOH 442 E HOH 443 3 HOH HOH 443 E HOH 444 3 HOH HOH 444 E HOH 445 3 HOH HOH 445 E HOH 446 3 HOH HOH 446 E HOH 447 3 HOH HOH 447 E HOH 448 3 HOH HOH 448 E HOH 453 3 HOH HOH 453 E HOH 455 3 HOH HOH 455 E HOH 456 3 HOH HOH 456 E HOH 458 3 HOH HOH 458 E HOH 460 3 HOH HOH 460 E HOH 461 3 HOH HOH 461 E HOH 462 3 HOH HOH 462 E HOH 463 3 HOH HOH 463 E HOH 464 3 HOH HOH 464 E HOH 465 3 HOH HOH 465 E HOH 466 3 HOH HOH 466 E HOH 467 3 HOH HOH 467 E HOH 468 3 HOH HOH 468 E HOH 469 3 HOH HOH 469 E HOH 470 3 HOH HOH 470 E HOH 471 3 HOH HOH 471 E HOH 472 3 HOH HOH 472 E HOH 477 3 HOH HOH 477 E HOH 479 3 HOH HOH 479 E HOH 480 3 HOH HOH 480 E HOH 481 3 HOH HOH 481 E HOH 257 3 HOH HOH 257 I HOH 331 3 HOH HOH 331 I HOH 363 3 HOH HOH 363 I HOH 364 3 HOH HOH 364 I HOH 365 3 HOH HOH 365 I HOH 370 3 HOH HOH 370 I HOH 375 3 HOH HOH 375 I HOH 381 3 HOH HOH 381 I HOH 382 3 HOH HOH 382 I HOH 383 3 HOH HOH 383 I HOH 386 3 HOH HOH 386 I HOH 400 3 HOH HOH 400 I HOH 404 3 HOH HOH 404 I HOH 407 3 HOH HOH 407 I HOH 408 3 HOH HOH 408 I HOH 415 3 HOH HOH 415 I HOH 418 3 HOH HOH 418 I HOH 473 3 HOH HOH 473 I HOH 475 3 HOH HOH 475 I ILE 16 n 1 ILE 16 E VAL 17 n 2 VAL 17 E GLY 18 n 3 GLY 18 E GLY 19 n 4 GLY 19 E TYR 20 n 5 TYR 20 E THR 21 n 6 THR 21 E CYS 22 n 7 CYS 22 E GLN 23 n 8 GLN 23 E GLU 24 n 9 GLU 24 E ASN 25 n 10 ASN 25 E SER 26 n 11 SER 26 E VAL 27 n 12 VAL 27 E PRO 28 n 13 PRO 28 E TYR 29 n 14 TYR 29 E GLN 30 n 15 GLN 30 E VAL 31 n 16 VAL 31 E SER 32 n 17 SER 32 E LEU 33 n 18 LEU 33 E ASN 34 n 19 ASN 34 E SER 37 n 20 SER 37 E GLY 38 n 21 GLY 38 E TYR 39 n 22 TYR 39 E HIS 40 n 23 HIS 40 E PHE 41 n 24 PHE 41 E CYS 42 n 25 CYS 42 E GLY 43 n 26 GLY 43 E GLY 44 n 27 GLY 44 E SER 45 n 28 SER 45 E LEU 46 n 29 LEU 46 E ILE 47 n 30 ILE 47 E ASN 48 n 31 ASN 48 E ASP 49 n 32 ASP 49 E GLN 50 n 33 GLN 50 E TRP 51 n 34 TRP 51 E VAL 52 n 35 VAL 52 E VAL 53 n 36 VAL 53 E SER 54 n 37 SER 54 E ALA 55 n 38 ALA 55 E ALA 56 n 39 ALA 56 E HIS 57 n 40 HIS 57 E CYS 58 n 41 CYS 58 E TYR 59 n 42 TYR 59 E LYS 60 n 43 LYS 60 E SER 61 n 44 SER 61 E ARG 62 n 45 ARG 62 E ILE 63 n 46 ILE 63 E GLN 64 n 47 GLN 64 E VAL 66 n 48 VAL 66 E ARG 67 n 49 ARG 67 E LEU 68 n 50 LEU 68 E GLY 69 n 51 GLY 69 E GLU 70 n 52 GLU 70 E HIS 71 n 53 HIS 71 E ASN 72 n 54 ASN 72 E ILE 73 n 55 ILE 73 E ASN 74 n 56 ASN 74 E VAL 75 n 57 VAL 75 E LEU 76 n 58 LEU 76 E GLU 77 n 59 GLU 77 E GLY 78 n 60 GLY 78 E ASN 79 n 61 ASN 79 E GLU 80 n 62 GLU 80 E GLN 81 n 63 GLN 81 E PHE 82 n 64 PHE 82 E VAL 83 n 65 VAL 83 E ASN 84 n 66 ASN 84 E ALA 85 n 67 ALA 85 E ALA 86 n 68 ALA 86 E LYS 87 n 69 LYS 87 E ILE 88 n 70 ILE 88 E ILE 89 n 71 ILE 89 E LYS 90 n 72 LYS 90 E HIS 91 n 73 HIS 91 E PRO 92 n 74 PRO 92 E ASN 93 n 75 ASN 93 E PHE 94 n 76 PHE 94 E ASP 95 n 77 ASP 95 E ARG 96 n 78 ARG 96 E LYS 97 n 79 LYS 97 E THR 98 n 80 THR 98 E LEU 99 n 81 LEU 99 E ASN 100 n 82 ASN 100 E ASN 101 n 83 ASN 101 E ASP 102 n 84 ASP 102 E ILE 103 n 85 ILE 103 E MET 104 n 86 MET 104 E LEU 105 n 87 LEU 105 E ILE 106 n 88 ILE 106 E LYS 107 n 89 LYS 107 E LEU 108 n 90 LEU 108 E SER 109 n 91 SER 109 E SER 110 n 92 SER 110 E PRO 111 n 93 PRO 111 E VAL 112 n 94 VAL 112 E LYS 113 n 95 LYS 113 E LEU 114 n 96 LEU 114 E ASN 115 n 97 ASN 115 E ALA 116 n 98 ALA 116 E ARG 117 n 99 ARG 117 E VAL 118 n 100 VAL 118 E ALA 119 n 101 ALA 119 E THR 120 n 102 THR 120 E VAL 121 n 103 VAL 121 E ALA 122 n 104 ALA 122 E LEU 123 n 105 LEU 123 E PRO 124 n 106 PRO 124 E SER 125 n 107 SER 125 E SER 127 n 108 SER 127 E CYS 128 n 109 CYS 128 E ALA 129 n 110 ALA 129 E PRO 130 n 111 PRO 130 E ALA 132 n 112 ALA 132 E GLY 133 n 113 GLY 133 E THR 134 n 114 THR 134 E GLN 135 n 115 GLN 135 E CYS 136 n 116 CYS 136 E LEU 137 n 117 LEU 137 E ILE 138 n 118 ILE 138 E SER 139 n 119 SER 139 E GLY 140 n 120 GLY 140 E TRP 141 n 121 TRP 141 E GLY 142 n 122 GLY 142 E ASN 143 n 123 ASN 143 E THR 144 n 124 THR 144 E LEU 145 n 125 LEU 145 E SER 146 n 126 SER 146 E SER 147 n 127 SER 147 E GLY 148 n 128 GLY 148 E VAL 149 n 129 VAL 149 E ASN 150 n 130 ASN 150 E GLU 151 n 131 GLU 151 E PRO 152 n 132 PRO 152 E ASP 153 n 133 ASP 153 E LEU 154 n 134 LEU 154 E LEU 155 n 135 LEU 155 E GLN 156 n 136 GLN 156 E CYS 157 n 137 CYS 157 E LEU 158 n 138 LEU 158 E ASP 159 n 139 ASP 159 E ALA 160 n 140 ALA 160 E PRO 161 n 141 PRO 161 E LEU 162 n 142 LEU 162 E LEU 163 n 143 LEU 163 E PRO 164 n 144 PRO 164 E GLN 165 n 145 GLN 165 E ALA 166 n 146 ALA 166 E ASP 167 n 147 ASP 167 E CYS 168 n 148 CYS 168 E GLU 169 n 149 GLU 169 E ALA 170 n 150 ALA 170 E SER 171 n 151 SER 171 E TYR 172 n 152 TYR 172 E PRO 173 n 153 PRO 173 E GLY 174 n 154 GLY 174 E LYS 175 n 155 LYS 175 E ILE 176 n 156 ILE 176 E THR 177 n 157 THR 177 E ASP 178 n 158 ASP 178 E ASN 179 n 159 ASN 179 E MET 180 n 160 MET 180 E VAL 181 n 161 VAL 181 E CYS 182 n 162 CYS 182 E VAL 183 n 163 VAL 183 E GLY 184 n 164 GLY 184 E PHE 184 n 165 A PHE 184 E LEU 185 n 166 LEU 185 E GLU 186 n 167 GLU 186 E GLY 187 n 168 GLY 187 E GLY 188 n 169 GLY 188 E LYS 188 n 170 A LYS 188 E GLY 189 n 171 GLY 189 E SER 190 n 172 SER 190 E CYS 191 n 173 CYS 191 E GLN 192 n 174 GLN 192 E GLY 193 n 175 GLY 193 E ASP 194 n 176 ASP 194 E SER 195 n 177 SER 195 E GLY 196 n 178 GLY 196 E GLY 197 n 179 GLY 197 E PRO 198 n 180 PRO 198 E VAL 199 n 181 VAL 199 E VAL 200 n 182 VAL 200 E CYS 201 n 183 CYS 201 E ASN 202 n 184 ASN 202 E GLY 203 n 185 GLY 203 E GLU 204 n 186 GLU 204 E LEU 209 n 187 LEU 209 E GLN 210 n 188 GLN 210 E GLY 211 n 189 GLY 211 E ILE 212 n 190 ILE 212 E VAL 213 n 191 VAL 213 E SER 214 n 192 SER 214 E TRP 215 n 193 TRP 215 E GLY 216 n 194 GLY 216 E TYR 217 n 195 TYR 217 E GLY 219 n 196 GLY 219 E CYS 220 n 197 CYS 220 E ALA 221 n 198 ALA 221 E LEU 221 n 199 A LEU 221 E PRO 222 n 200 PRO 222 E ASP 223 n 201 ASP 223 E ASN 224 n 202 ASN 224 E PRO 225 n 203 PRO 225 E ASP 226 n 204 ASP 226 E VAL 227 n 205 VAL 227 E TYR 228 n 206 TYR 228 E THR 229 n 207 THR 229 E LYS 230 n 208 LYS 230 E VAL 231 n 209 VAL 231 E CYS 232 n 210 CYS 232 E ASN 233 n 211 ASN 233 E TYR 234 n 212 TYR 234 E VAL 235 n 213 VAL 235 E ASP 236 n 214 ASP 236 E TRP 237 n 215 TRP 237 E ILE 238 n 216 ILE 238 E GLN 239 n 217 GLN 239 E ASP 240 n 218 ASP 240 E THR 241 n 219 THR 241 E ILE 242 n 220 ILE 242 E ALA 243 n 221 ALA 243 E ALA 244 n 222 ALA 244 E ASN 245 n 223 ASN 245 E VAL 1 n 1 VAL 1 I ARG 2 n 2 ARG 2 I GLU 3 n 3 GLU 3 I VAL 4 n 4 VAL 4 I CYS 5 n 5 CYS 5 I SER 6 n 6 SER 6 I GLU 7 n 7 GLU 7 I GLN 8 n 8 GLN 8 I ALA 9 n 9 ALA 9 I GLU 10 n 10 GLU 10 I THR 11 n 11 THR 11 I GLY 12 n 12 GLY 12 I PRO 13 n 13 PRO 13 I CYS 14 n 14 CYS 14 I ARG 15 n 15 ARG 15 I ALA 16 n 16 ALA 16 I MET 17 n 17 MET 17 I ILE 18 n 18 ILE 18 I SER 19 n 19 SER 19 I ARG 20 n 20 ARG 20 I TRP 21 n 21 TRP 21 I TYR 22 n 22 TYR 22 I PHE 23 n 23 PHE 23 I ASP 24 n 24 ASP 24 I VAL 25 n 25 VAL 25 I THR 26 n 26 THR 26 I GLU 27 n 27 GLU 27 I GLY 28 n 28 GLY 28 I LYS 29 n 29 LYS 29 I CYS 30 n 30 CYS 30 I ALA 31 n 31 ALA 31 I PRO 32 n 32 PRO 32 I PHE 33 n 33 PHE 33 I PHE 34 n 34 PHE 34 I TYR 35 n 35 TYR 35 I GLY 36 n 36 GLY 36 I GLY 37 n 37 GLY 37 I CYS 38 n 38 CYS 38 I GLY 39 n 39 GLY 39 I GLY 40 n 40 GLY 40 I ASN 41 n 41 ASN 41 I ARG 42 n 42 ARG 42 I ASN 43 n 43 ASN 43 I ASN 44 n 44 ASN 44 I PHE 45 n 45 PHE 45 I ASP 46 n 46 ASP 46 I THR 47 n 47 THR 47 I GLU 48 n 48 GLU 48 I GLU 49 n 49 GLU 49 I TYR 50 n 50 TYR 50 I CYS 51 n 51 CYS 51 I MET 52 n 52 MET 52 I ALA 53 n 53 ALA 53 I VAL 54 n 54 VAL 54 I CYS 55 n 55 CYS 55 I GLY 56 n 56 GLY 56 I author_and_software_defined_assembly PISA 2 dimeric 1320 -9 11660 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 E N TYR 20 A N TYR 5 E O CYS 157 A O CYS 137 E N ALA 160 A N ALA 140 E O CYS 136 A O CYS 116 E O LEU 137 A O LEU 117 E N VAL 200 A N VAL 182 E O GLY 197 A O GLY 179 E N VAL 213 A N VAL 191 E O TRP 215 A O TRP 193 E N VAL 227 A N VAL 205 E O ASP 226 A O ASP 204 E N VAL 183 A N VAL 163 E O SER 45 A O SER 28 E N VAL 53 A N VAL 36 E N SER 54 A N SER 37 E O MET 104 A O MET 86 E O ILE 103 A O ILE 85 E N HIS 91 A N HIS 73 E O VAL 66 A O VAL 48 E N GLN 81 A N GLN 63 I O TYR 35 B O TYR 35 I N ILE 18 B N ILE 18 I O TRP 21 B O TRP 21 I N PHE 45 B N PHE 45 1 E CG ARG 96 A CG ARG 78 1 Y 1 E CD ARG 96 A CD ARG 78 1 Y 1 E NE ARG 96 A NE ARG 78 1 Y 1 E CZ ARG 96 A CZ ARG 78 1 Y 1 E NH1 ARG 96 A NH1 ARG 78 1 Y 1 E NH2 ARG 96 A NH2 ARG 78 1 Y 1 E CG LYS 97 A CG LYS 79 1 Y 1 E CD LYS 97 A CD LYS 79 1 Y 1 E CE LYS 97 A CE LYS 79 1 Y 1 E NZ LYS 97 A NZ LYS 79 1 Y 1 E CG GLU 151 A CG GLU 131 1 Y 1 E CD GLU 151 A CD GLU 131 1 Y 1 E OE1 GLU 151 A OE1 GLU 131 1 Y 1 E OE2 GLU 151 A OE2 GLU 131 1 Y 1 E CG GLN 165 A CG GLN 145 1 Y 1 E CD GLN 165 A CD GLN 145 1 Y 1 E OE1 GLN 165 A OE1 GLN 145 1 Y 1 E NE2 GLN 165 A NE2 GLN 145 1 Y 1 E CG GLN 239 A CG GLN 217 1 Y 1 E CD GLN 239 A CD GLN 217 1 Y 1 E OE1 GLN 239 A OE1 GLN 217 1 Y 1 E NE2 GLN 239 A NE2 GLN 217 1 Y 1 I CG GLN 8 B CG GLN 8 1 Y 1 I CD GLN 8 B CD GLN 8 1 Y 1 I OE1 GLN 8 B OE1 GLN 8 1 Y 1 I NE2 GLN 8 B NE2 GLN 8 1 Y 1 I CG GLU 10 B CG GLU 10 1 Y 1 I CD GLU 10 B CD GLU 10 1 Y 1 I OE1 GLU 10 B OE1 GLU 10 1 Y 1 I OE2 GLU 10 B OE2 GLU 10 1 Y 1 I CG GLU 27 B CG GLU 27 1 Y 1 I CD GLU 27 B CD GLU 27 1 Y 1 I OE1 GLU 27 B OE1 GLU 27 1 Y 1 I OE2 GLU 27 B OE2 GLU 27 1 Y 1 I CG ARG 42 B CG ARG 42 1 Y 1 I CD ARG 42 B CD ARG 42 1 Y 1 I NE ARG 42 B NE ARG 42 1 Y 1 I CZ ARG 42 B CZ ARG 42 1 Y 1 I NH1 ARG 42 B NH1 ARG 42 1 Y 1 I NH2 ARG 42 B NH2 ARG 42 1 Y 1 I CG GLU 49 B CG GLU 49 1 Y 1 I CD GLU 49 B CD GLU 49 1 Y 1 I OE1 GLU 49 B OE1 GLU 49 1 Y 1 I OE2 GLU 49 B OE2 GLU 49 1 Y 1 6.34 0.80 106.30 112.64 E E E CD1 CG CD2 TRP TRP TRP 51 51 51 N 1 -7.89 1.30 127.00 119.11 E E E CB CG CD1 TRP TRP TRP 51 51 51 N 1 -6.13 0.80 107.30 101.17 E E E CE2 CD2 CG TRP TRP TRP 51 51 51 N 1 6.17 0.90 133.90 140.07 E E E CG CD2 CE3 TRP TRP TRP 51 51 51 N 1 -10.62 1.60 110.90 100.28 E E E CG1 CB CG2 VAL VAL VAL 183 183 183 N 1 6.88 0.80 106.30 113.18 E E E CD1 CG CD2 TRP TRP TRP 215 215 215 N 1 -6.29 1.00 110.10 103.81 E E E CG CD1 NE1 TRP TRP TRP 215 215 215 N 1 -5.79 0.80 107.30 101.51 E E E CE2 CD2 CG TRP TRP TRP 215 215 215 N 1 5.98 0.80 106.30 112.28 E E E CD1 CG CD2 TRP TRP TRP 237 237 237 N 1 -5.39 0.80 107.30 101.91 E E E CE2 CD2 CG TRP TRP TRP 237 237 237 N 1 6.80 0.80 106.30 113.10 I I I CD1 CG CD2 TRP TRP TRP 21 21 21 N 1 -6.05 0.80 107.30 101.25 I I I CE2 CD2 CG TRP TRP TRP 21 21 21 N 1 7.12 1.10 114.20 121.32 I I I CA CB SG CYS CYS CYS 38 38 38 N 1 E E NE2 CD2 HIS HIS 91 91 -0.068 0.011 1.373 1.305 N 1 E VAL 27 -111.51 69.41 1 E ASP 49 -32.04 -29.90 1 E HIS 71 -125.51 -56.80 1 E ASN 115 -170.15 -166.73 1 E SER 214 -127.56 -71.15 1 I ARG 2 41.95 -65.05 0.168 0.168 2.5 1 2.5 141 2195 0 0 2054 0.011 2.8 model building X-PLOR refinement X-PLOR phasing X-PLOR TRYPSIN (E.C.3.4.21.4) VARIANT (D189G,G226D) COMPLEXED WITH AMYLOID BETA-PROTEIN PRECURSOR INHIBITOR DOMAIN (APPI) RELOCATING A NEGATIVE CHARGE IN THE BINDING POCKET OF TRYPSIN 1 N N 2 N N 3 N N 3 N N E PRO 164 A PRO 144 HELX_P IRREGULAR AFTER CYS 168 E TYR 172 A TYR 152 1 SHA 9 E LYS 230 A LYS 208 HELX_P LEADS INTO TERMINAL ALPHA-HLX E VAL 235 A VAL 213 5 31A 6 E TYR 234 A TYR 212 HELX_P C-TERMINAL HELIX E ASN 245 A ASN 223 1 TEA 12 I THR 47 B THR 47 HELX_P I GLY 56 B GLY 56 1 H2 10 disulf 2.019 E CYS 22 A SG CYS 7 1_555 E CYS 157 A SG CYS 137 1_555 disulf 2.024 E CYS 42 A SG CYS 25 1_555 E CYS 58 A SG CYS 41 1_555 disulf 2.020 E CYS 128 A SG CYS 109 1_555 E CYS 232 A SG CYS 210 1_555 disulf 2.009 E CYS 136 A SG CYS 116 1_555 E CYS 201 A SG CYS 183 1_555 disulf 2.004 E CYS 168 A SG CYS 148 1_555 E CYS 182 A SG CYS 162 1_555 disulf 2.022 E CYS 191 A SG CYS 173 1_555 E CYS 220 A SG CYS 197 1_555 disulf 2.022 I CYS 5 B SG CYS 5 1_555 I CYS 55 B SG CYS 55 1_555 disulf 2.016 I CYS 14 B SG CYS 14 1_555 I CYS 38 B SG CYS 38 1_555 disulf 2.008 I CYS 30 B SG CYS 30 1_555 I CYS 51 B SG CYS 51 1_555 HYDROLASE/HYDROLASE INHIBITOR PROTEINASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX TRY2_RAT UNP 1 1 P00763 MRALLFLALVGAAVAFPVDDDDKIVGGYTCQENSVPYQVSLNSGYHFCGGSLINDQWVVSAAHCYKSRIQVRLGEHNINV LEGNEQFVNAAKIIKHPNFDRKTLNNDIMLIKLSSPVKLNARVATVALPSSCAPAGTQCLISGWGNTLSSGVNEPDLLQC LDAPLLPQADCEASYPGKITDNMVCVGFLEGGKDSCQGDSGGPVVCNGELQGIVSWGYGCALPDNPGVYTKVCNYVDWIQ DTIAAN A4_HUMAN UNP 2 1 P05067 MLPSLALLLLAAWTVRALEVPTDGNAGLLAEPQIAMFCGKLNMHMNVQNGKWESDPSGTKTCIGTKEGILQYCQEVYPEL QITNVVEANQPVTIQNWCKRGRKQCKTHTHIVIPYRCLVGEFVSDALLVPDKCKFLHQERMDVCETHLHWHTVAKETCSE KSTNLHDYGMLLPCGIDKFRGVEFVCCPLAEESDSIDSADAEEDDSDVWWGGADTDYADGGEDKVVEVAEEEEVADVEEE EAEDDEDVEDGDEVEEEAEEPYEEATERTTSIATTTTTTTESVEEVVREVCSEQAETGPCRAMISRWYFDVTEGKCAPFF YGGCGGNRNNFDTEEYCMAVCGSVSSQSLLKTTSEPLPQDPVKLPTTAASTPDAVDKYLETPGDENEHAHFQKAKERLEA KHRERMSQVMREWEEAERQAKNLPKADKKAVIQHFQEKVESLEQEAANERQQLVETHMARVEAMLNDRRRLALENYITAL QAVPPRPHHVFNMLKKYVRAEQKDRQHTLKHFEHVRMVDPKKAAQIRSQVMTHLRVIYERMNQSLSLLYNVPAVAEEIQD EVDELLQKEQNYSDDVLANMISEPRISYGNDALMPSLTETKTTVELLPVNGEFSLDDLQPWHPFGVDSVPANTENEVEPV DARPAADRGLTTRPGSGLTNIKTEEISEVKMDAEFGHDSGFEVRHQKLVFFAEDVGSNKGAIIGLMVGGVVIATVIVITL VMLKKKQYTSIHHGVVEVDAAVTPEERHLSKMQQNGYENPTYKFFEQMQN 24 246 1BRC 16 245 P00763 E 1 1 223 287 342 1BRC 1 56 P05067 I 2 1 56 1 ASP CONFLICT GLY 189 1BRC E P00763 UNP 194 171 1 GLY CONFLICT ASP 226 1BRC E P00763 UNP 227 204 7 4 2 3 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel E TYR 20 A TYR 5 E TYR 20 A TYR 5 E GLN 156 A GLN 136 E PRO 161 A PRO 141 E CYS 136 A CYS 116 E GLY 140 A GLY 120 E GLY 197 A GLY 179 E CYS 201 A CYS 183 E GLU 204 A GLU 186 E TRP 215 A TRP 193 E ASP 226 A ASP 204 E VAL 231 A VAL 209 E ASN 179 A ASN 159 E VAL 183 A VAL 163 E GLY 43 A GLY 26 E SER 45 A SER 28 E VAL 52 A VAL 35 E ALA 55 A ALA 38 E ILE 103 A ILE 85 E LYS 107 A LYS 89 E LYS 87 A LYS 69 E HIS 91 A HIS 73 E ILE 63 A ILE 46 E VAL 66 A VAL 48 E GLN 81 A GLN 63 E ALA 85 A ALA 67 I LYS 29 B LYS 29 I TYR 35 B TYR 35 I ILE 18 B ILE 18 I ASP 24 B ASP 24 I PHE 45 B PHE 45 I PHE 45 B PHE 45 CATALYTIC TRIAD RESIDUES, CONSERVED IN ALL SERINE PROTEASES OF THE TRYPSIN AND SUBTILISIN STRUCTURAL CLASSES Author 3 E HIS 57 A HIS 40 3 1_555 E ASP 102 A ASP 84 3 1_555 E SER 195 A SER 177 3 1_555 154 P 32 2 1