0.019467 0.000000 0.000000 0.000000 0.017179 0.000000 0.000000 0.000000 0.013364 0.00000 0.00000 0.00000 Ding, X. Rasmussen, B. Petsko, G.A. Ringe, D. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 90.00 90.00 51.370 58.210 74.830 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 Ca 2 40.078 CALCIUM ION non-polymer 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 O4 S -2 96.063 SULFATE ION non-polymer 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 US Biochemistry BICHAW 0033 0006-2960 33 9285 9293 10.1021/bi00197a032 8049229 Direct structural observation of an acyl-enzyme intermediate in the hydrolysis of an ester substrate by elastase. 1994 DK Acta Crystallogr.,Sect.B ASBSDK 0622 0108-7681 44 26 Structure of Native Procine Pancreatic Elastase at 1.65 Angstroms Resolution 1988 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 25928.031 PORCINE PANCREATIC ELASTASE 3.4.21.36 1 man polymer 40.078 CALCIUM ION 1 syn non-polymer 96.063 SULFATE ION 2 syn non-polymer 18.015 water 134 nat water no no VVGGTEAQRNSWPSQISLQYRSGSSWAHTCGGTLIRQNWVMTAAHCVDRELTFRVVVGEHNLNQNNGTEQYVGVQKIVVH PYWNTDDVAAGYDIALLRLAQSVTLNSYVQLGVLPRAGTILANNSPCYITGWGLTRTNGQLAQTLQQAYLPTVDYAICSS SSYWGSTVKNSMVCAGGDGVRSGCQGDSGGPLHCLVNGQYAVHGVTSFVSRLGCNVTRKPTVFTRVSAYISWINNVIASN VVGGTEAQRNSWPSQISLQYRSGSSWAHTCGGTLIRQNWVMTAAHCVDRELTFRVVVGEHNLNQNNGTEQYVGVQKIVVH PYWNTDDVAAGYDIALLRLAQSVTLNSYVQLGVLPRAGTILANNSPCYITGWGLTRTNGQLAQTLQQAYLPTVDYAICSS SSYWGSTVKNSMVCAGGDGVRSGCQGDSGGPLHCLVNGQYAVHGVTSFVSRLGCNVTRKPTVFTRVSAYISWINNVIASN 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 n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n 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 Sus sample 9823 Sus scrofa 2.16 42.97 repository Initial release Version format compliance Version format compliance 1 0 1994-04-30 1 1 2008-03-03 1 2 2011-07-13 SHEET THE SHEETS PRESENTED AS *S1* AND *S2* ON SHEET RECORDS BELOW ARE ACTUALLY SIX-STRANDED BETA-BARRELS. THIS IS REPRESENTED BY SEVEN-STRANDED SHEETS IN WHICH THE FIRST AND LAST STRAND OF EACH SHEET ARE IDENTICAL. Y 1994-02-04 REL CA CALCIUM ION SO4 SULFATE ION HOH water THE RESIDUE NUMBERING SCHEME FOR THE PROTEIN IS SEQUENTIAL STARTING WITH VAL 16 AND ENDING WITH ASN 255. THE CATALYTIC TRIAD IS COMPOSED OF SER 203, HIS 60, AND ASP 108 (DENOTED BY *SITE* BELOW). SEQUENCE ADVISORY NOTICE: DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. SWISS-PROT ENTRY NAME: EL1_PIG SWISS-PROT PDB ATOM RECORDS NAME SEQ NAME CHAIN SEQ ASP 93 ASN 81 THE IDENTITY OF ASN 81 AGREES WITH THE SEQUENCE OF PDB ENTRY 3EST. CA 280 2 CA CA 280 A SO4 290 3 SO4 SO4 290 A SO4 295 3 SO4 SO4 295 A HOH 301 4 HOH HOH 301 A HOH 302 4 HOH HOH 302 A HOH 303 4 HOH HOH 303 A HOH 304 4 HOH HOH 304 A HOH 305 4 HOH HOH 305 A HOH 306 4 HOH HOH 306 A HOH 307 4 HOH HOH 307 A HOH 308 4 HOH HOH 308 A HOH 309 4 HOH HOH 309 A HOH 310 4 HOH HOH 310 A HOH 311 4 HOH HOH 311 A HOH 312 4 HOH HOH 312 A HOH 313 4 HOH HOH 313 A HOH 314 4 HOH HOH 314 A HOH 315 4 HOH HOH 315 A HOH 316 4 HOH HOH 316 A HOH 317 4 HOH HOH 317 A HOH 318 4 HOH HOH 318 A HOH 319 4 HOH HOH 319 A HOH 320 4 HOH HOH 320 A HOH 321 4 HOH HOH 321 A HOH 322 4 HOH HOH 322 A HOH 323 4 HOH HOH 323 A HOH 324 4 HOH HOH 324 A HOH 325 4 HOH HOH 325 A HOH 326 4 HOH HOH 326 A HOH 327 4 HOH HOH 327 A HOH 328 4 HOH HOH 328 A HOH 329 4 HOH HOH 329 A HOH 330 4 HOH HOH 330 A HOH 331 4 HOH HOH 331 A HOH 332 4 HOH HOH 332 A HOH 333 4 HOH HOH 333 A HOH 334 4 HOH HOH 334 A HOH 335 4 HOH HOH 335 A HOH 336 4 HOH HOH 336 A HOH 337 4 HOH HOH 337 A HOH 338 4 HOH HOH 338 A HOH 339 4 HOH HOH 339 A HOH 340 4 HOH HOH 340 A HOH 341 4 HOH HOH 341 A HOH 342 4 HOH HOH 342 A HOH 343 4 HOH HOH 343 A HOH 344 4 HOH HOH 344 A HOH 345 4 HOH HOH 345 A HOH 346 4 HOH HOH 346 A HOH 347 4 HOH HOH 347 A HOH 348 4 HOH HOH 348 A HOH 349 4 HOH HOH 349 A HOH 350 4 HOH HOH 350 A HOH 351 4 HOH HOH 351 A HOH 352 4 HOH HOH 352 A HOH 353 4 HOH HOH 353 A HOH 354 4 HOH HOH 354 A HOH 355 4 HOH HOH 355 A HOH 356 4 HOH HOH 356 A HOH 357 4 HOH HOH 357 A HOH 358 4 HOH HOH 358 A HOH 359 4 HOH HOH 359 A HOH 360 4 HOH HOH 360 A HOH 361 4 HOH HOH 361 A HOH 362 4 HOH HOH 362 A HOH 363 4 HOH HOH 363 A HOH 364 4 HOH HOH 364 A HOH 365 4 HOH HOH 365 A HOH 366 4 HOH HOH 366 A HOH 367 4 HOH HOH 367 A HOH 368 4 HOH HOH 368 A HOH 369 4 HOH HOH 369 A HOH 370 4 HOH HOH 370 A HOH 371 4 HOH HOH 371 A HOH 372 4 HOH HOH 372 A HOH 373 4 HOH HOH 373 A HOH 374 4 HOH HOH 374 A HOH 375 4 HOH HOH 375 A HOH 376 4 HOH HOH 376 A HOH 377 4 HOH HOH 377 A HOH 378 4 HOH HOH 378 A HOH 379 4 HOH HOH 379 A HOH 380 4 HOH HOH 380 A HOH 381 4 HOH HOH 381 A HOH 382 4 HOH HOH 382 A HOH 383 4 HOH HOH 383 A HOH 384 4 HOH HOH 384 A HOH 385 4 HOH HOH 385 A HOH 386 4 HOH HOH 386 A HOH 387 4 HOH HOH 387 A HOH 388 4 HOH HOH 388 A HOH 389 4 HOH HOH 389 A HOH 390 4 HOH HOH 390 A HOH 391 4 HOH HOH 391 A HOH 392 4 HOH HOH 392 A HOH 393 4 HOH HOH 393 A HOH 394 4 HOH HOH 394 A HOH 395 4 HOH HOH 395 A HOH 396 4 HOH HOH 396 A HOH 397 4 HOH HOH 397 A HOH 398 4 HOH HOH 398 A HOH 399 4 HOH HOH 399 A HOH 400 4 HOH HOH 400 A HOH 401 4 HOH HOH 401 A HOH 402 4 HOH HOH 402 A HOH 403 4 HOH HOH 403 A HOH 404 4 HOH HOH 404 A HOH 405 4 HOH HOH 405 A HOH 406 4 HOH HOH 406 A HOH 407 4 HOH HOH 407 A HOH 408 4 HOH HOH 408 A HOH 409 4 HOH HOH 409 A HOH 410 4 HOH HOH 410 A HOH 411 4 HOH HOH 411 A HOH 412 4 HOH HOH 412 A HOH 413 4 HOH HOH 413 A HOH 414 4 HOH HOH 414 A HOH 415 4 HOH HOH 415 A HOH 416 4 HOH HOH 416 A HOH 417 4 HOH HOH 417 A HOH 418 4 HOH HOH 418 A HOH 419 4 HOH HOH 419 A HOH 420 4 HOH HOH 420 A HOH 421 4 HOH HOH 421 A HOH 422 4 HOH HOH 422 A HOH 423 4 HOH HOH 423 A HOH 424 4 HOH HOH 424 A HOH 425 4 HOH HOH 425 A HOH 426 4 HOH HOH 426 A HOH 427 4 HOH HOH 427 A HOH 428 4 HOH HOH 428 A HOH 429 4 HOH HOH 429 A HOH 430 4 HOH HOH 430 A HOH 431 4 HOH HOH 431 A HOH 432 4 HOH HOH 432 A HOH 433 4 HOH HOH 433 A HOH 434 4 HOH HOH 434 A VAL 16 n 1 VAL 16 A VAL 17 n 2 VAL 17 A GLY 18 n 3 GLY 18 A GLY 19 n 4 GLY 19 A THR 20 n 5 THR 20 A GLU 21 n 6 GLU 21 A ALA 22 n 7 ALA 22 A GLN 23 n 8 GLN 23 A ARG 24 n 9 ARG 24 A ASN 25 n 10 ASN 25 A SER 26 n 11 SER 26 A TRP 27 n 12 TRP 27 A PRO 28 n 13 PRO 28 A SER 29 n 14 SER 29 A GLN 30 n 15 GLN 30 A ILE 31 n 16 ILE 31 A SER 32 n 17 SER 32 A LEU 33 n 18 LEU 33 A GLN 34 n 19 GLN 34 A TYR 35 n 20 TYR 35 A ARG 36 n 21 ARG 36 A SER 37 n 22 SER 37 A GLY 38 n 23 GLY 38 A SER 39 n 24 SER 39 A SER 40 n 25 SER 40 A TRP 41 n 26 TRP 41 A ALA 42 n 27 ALA 42 A HIS 43 n 28 HIS 43 A THR 44 n 29 THR 44 A CYS 45 n 30 CYS 45 A GLY 46 n 31 GLY 46 A GLY 47 n 32 GLY 47 A THR 48 n 33 THR 48 A LEU 49 n 34 LEU 49 A ILE 50 n 35 ILE 50 A ARG 51 n 36 ARG 51 A GLN 52 n 37 GLN 52 A ASN 53 n 38 ASN 53 A TRP 54 n 39 TRP 54 A VAL 55 n 40 VAL 55 A MET 56 n 41 MET 56 A THR 57 n 42 THR 57 A ALA 58 n 43 ALA 58 A ALA 59 n 44 ALA 59 A HIS 60 n 45 HIS 60 A CYS 61 n 46 CYS 61 A VAL 62 n 47 VAL 62 A ASP 63 n 48 ASP 63 A ARG 64 n 49 ARG 64 A GLU 65 n 50 GLU 65 A LEU 66 n 51 LEU 66 A THR 67 n 52 THR 67 A PHE 68 n 53 PHE 68 A ARG 69 n 54 ARG 69 A VAL 70 n 55 VAL 70 A VAL 71 n 56 VAL 71 A VAL 72 n 57 VAL 72 A GLY 73 n 58 GLY 73 A GLU 74 n 59 GLU 74 A HIS 75 n 60 HIS 75 A ASN 76 n 61 ASN 76 A LEU 77 n 62 LEU 77 A ASN 78 n 63 ASN 78 A GLN 79 n 64 GLN 79 A ASN 80 n 65 ASN 80 A ASN 81 n 66 ASN 81 A GLY 82 n 67 GLY 82 A THR 83 n 68 THR 83 A GLU 84 n 69 GLU 84 A GLN 85 n 70 GLN 85 A TYR 86 n 71 TYR 86 A VAL 87 n 72 VAL 87 A GLY 88 n 73 GLY 88 A VAL 89 n 74 VAL 89 A GLN 90 n 75 GLN 90 A LYS 91 n 76 LYS 91 A ILE 92 n 77 ILE 92 A VAL 93 n 78 VAL 93 A VAL 94 n 79 VAL 94 A HIS 95 n 80 HIS 95 A PRO 96 n 81 PRO 96 A TYR 97 n 82 TYR 97 A TRP 98 n 83 TRP 98 A ASN 99 n 84 ASN 99 A THR 100 n 85 THR 100 A ASP 101 n 86 ASP 101 A ASP 102 n 87 ASP 102 A VAL 103 n 88 VAL 103 A ALA 104 n 89 ALA 104 A ALA 105 n 90 ALA 105 A GLY 106 n 91 GLY 106 A TYR 107 n 92 TYR 107 A ASP 108 n 93 ASP 108 A ILE 109 n 94 ILE 109 A ALA 110 n 95 ALA 110 A LEU 111 n 96 LEU 111 A LEU 112 n 97 LEU 112 A ARG 113 n 98 ARG 113 A LEU 114 n 99 LEU 114 A ALA 115 n 100 ALA 115 A GLN 116 n 101 GLN 116 A SER 117 n 102 SER 117 A VAL 118 n 103 VAL 118 A THR 119 n 104 THR 119 A LEU 120 n 105 LEU 120 A ASN 121 n 106 ASN 121 A SER 122 n 107 SER 122 A TYR 123 n 108 TYR 123 A VAL 124 n 109 VAL 124 A GLN 125 n 110 GLN 125 A LEU 126 n 111 LEU 126 A GLY 127 n 112 GLY 127 A VAL 128 n 113 VAL 128 A LEU 129 n 114 LEU 129 A PRO 130 n 115 PRO 130 A ARG 131 n 116 ARG 131 A ALA 132 n 117 ALA 132 A GLY 133 n 118 GLY 133 A THR 134 n 119 THR 134 A ILE 135 n 120 ILE 135 A LEU 136 n 121 LEU 136 A ALA 137 n 122 ALA 137 A ASN 138 n 123 ASN 138 A ASN 139 n 124 ASN 139 A SER 140 n 125 SER 140 A PRO 141 n 126 PRO 141 A CYS 142 n 127 CYS 142 A TYR 143 n 128 TYR 143 A ILE 144 n 129 ILE 144 A THR 145 n 130 THR 145 A GLY 146 n 131 GLY 146 A TRP 147 n 132 TRP 147 A GLY 148 n 133 GLY 148 A LEU 149 n 134 LEU 149 A THR 150 n 135 THR 150 A ARG 151 n 136 ARG 151 A THR 152 n 137 THR 152 A ASN 153 n 138 ASN 153 A GLY 154 n 139 GLY 154 A GLN 155 n 140 GLN 155 A LEU 156 n 141 LEU 156 A ALA 157 n 142 ALA 157 A GLN 158 n 143 GLN 158 A THR 159 n 144 THR 159 A LEU 160 n 145 LEU 160 A GLN 161 n 146 GLN 161 A GLN 162 n 147 GLN 162 A ALA 163 n 148 ALA 163 A TYR 164 n 149 TYR 164 A LEU 165 n 150 LEU 165 A PRO 166 n 151 PRO 166 A THR 167 n 152 THR 167 A VAL 168 n 153 VAL 168 A ASP 169 n 154 ASP 169 A TYR 170 n 155 TYR 170 A ALA 171 n 156 ALA 171 A ILE 172 n 157 ILE 172 A CYS 173 n 158 CYS 173 A SER 174 n 159 SER 174 A SER 175 n 160 SER 175 A SER 176 n 161 SER 176 A SER 177 n 162 SER 177 A TYR 178 n 163 TYR 178 A TRP 179 n 164 TRP 179 A GLY 180 n 165 GLY 180 A SER 181 n 166 SER 181 A THR 182 n 167 THR 182 A VAL 183 n 168 VAL 183 A LYS 184 n 169 LYS 184 A ASN 185 n 170 ASN 185 A SER 186 n 171 SER 186 A MET 187 n 172 MET 187 A VAL 188 n 173 VAL 188 A CYS 189 n 174 CYS 189 A ALA 190 n 175 ALA 190 A GLY 191 n 176 GLY 191 A GLY 192 n 177 GLY 192 A ASP 193 n 178 ASP 193 A GLY 194 n 179 GLY 194 A VAL 195 n 180 VAL 195 A ARG 196 n 181 ARG 196 A SER 197 n 182 SER 197 A GLY 198 n 183 GLY 198 A CYS 199 n 184 CYS 199 A GLN 200 n 185 GLN 200 A GLY 201 n 186 GLY 201 A ASP 202 n 187 ASP 202 A SER 203 n 188 SER 203 A GLY 204 n 189 GLY 204 A GLY 205 n 190 GLY 205 A PRO 206 n 191 PRO 206 A LEU 207 n 192 LEU 207 A HIS 208 n 193 HIS 208 A CYS 209 n 194 CYS 209 A LEU 210 n 195 LEU 210 A VAL 211 n 196 VAL 211 A ASN 212 n 197 ASN 212 A GLY 213 n 198 GLY 213 A GLN 214 n 199 GLN 214 A TYR 215 n 200 TYR 215 A ALA 216 n 201 ALA 216 A VAL 217 n 202 VAL 217 A HIS 218 n 203 HIS 218 A GLY 219 n 204 GLY 219 A VAL 220 n 205 VAL 220 A THR 221 n 206 THR 221 A SER 222 n 207 SER 222 A PHE 223 n 208 PHE 223 A VAL 224 n 209 VAL 224 A SER 225 n 210 SER 225 A ARG 226 n 211 ARG 226 A LEU 227 n 212 LEU 227 A GLY 228 n 213 GLY 228 A CYS 229 n 214 CYS 229 A ASN 230 n 215 ASN 230 A VAL 231 n 216 VAL 231 A THR 232 n 217 THR 232 A ARG 233 n 218 ARG 233 A LYS 234 n 219 LYS 234 A PRO 235 n 220 PRO 235 A THR 236 n 221 THR 236 A VAL 237 n 222 VAL 237 A PHE 238 n 223 PHE 238 A THR 239 n 224 THR 239 A ARG 240 n 225 ARG 240 A VAL 241 n 226 VAL 241 A SER 242 n 227 SER 242 A ALA 243 n 228 ALA 243 A TYR 244 n 229 TYR 244 A ILE 245 n 230 ILE 245 A SER 246 n 231 SER 246 A TRP 247 n 232 TRP 247 A ILE 248 n 233 ILE 248 A ASN 249 n 234 ASN 249 A ASN 250 n 235 ASN 250 A VAL 251 n 236 VAL 251 A ILE 252 n 237 ILE 252 A ALA 253 n 238 ALA 253 A SER 254 n 239 SER 254 A ASN 255 n 240 ASN 255 A author_defined_assembly 1 monomeric A ASN 76 A O ASN 61 1_555 A CA 280 B CA CA 1_555 A GLU 74 A OE1 GLU 59 1_555 75.0 A ASN 76 A O ASN 61 1_555 A CA 280 B CA CA 1_555 A GLU 74 A OE2 GLU 59 1_555 85.4 A GLU 74 A OE1 GLU 59 1_555 A CA 280 B CA CA 1_555 A GLU 74 A OE2 GLU 59 1_555 40.7 A ASN 76 A O ASN 61 1_555 A CA 280 B CA CA 1_555 A GLN 79 A O GLN 64 1_555 82.0 A GLU 74 A OE1 GLU 59 1_555 A CA 280 B CA CA 1_555 A GLN 79 A O GLN 64 1_555 150.9 A GLU 74 A OE2 GLU 59 1_555 A CA 280 B CA CA 1_555 A GLN 79 A O GLN 64 1_555 154.6 A ASN 76 A O ASN 61 1_555 A CA 280 B CA CA 1_555 A ASN 81 A OD1 ASN 66 1_555 84.0 A GLU 74 A OE1 GLU 59 1_555 A CA 280 B CA CA 1_555 A ASN 81 A OD1 ASN 66 1_555 73.3 A GLU 74 A OE2 GLU 59 1_555 A CA 280 B CA CA 1_555 A ASN 81 A OD1 ASN 66 1_555 113.6 A GLN 79 A O GLN 64 1_555 A CA 280 B CA CA 1_555 A ASN 81 A OD1 ASN 66 1_555 86.9 A ASN 76 A O ASN 61 1_555 A CA 280 B CA CA 1_555 A GLU 84 A OE2 GLU 69 1_555 166.6 A GLU 74 A OE1 GLU 59 1_555 A CA 280 B CA CA 1_555 A GLU 84 A OE2 GLU 69 1_555 101.3 A GLU 74 A OE2 GLU 59 1_555 A CA 280 B CA CA 1_555 A GLU 84 A OE2 GLU 69 1_555 100.3 A GLN 79 A O GLN 64 1_555 A CA 280 B CA CA 1_555 A GLU 84 A OE2 GLU 69 1_555 97.0 A ASN 81 A OD1 ASN 66 1_555 A CA 280 B CA CA 1_555 A GLU 84 A OE2 GLU 69 1_555 82.7 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 1 A TYR 97 0.070 SIDE CHAIN 1 5.41 0.50 120.30 125.71 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 1 -4.21 0.50 120.30 116.09 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 1 6.45 0.80 106.30 112.75 A A A CD1 CG CD2 TRP TRP TRP 27 27 27 N 1 -7.96 1.30 127.00 119.04 A A A CB CG CD1 TRP TRP TRP 27 27 27 N 1 -6.09 0.80 107.30 101.21 A A A CE2 CD2 CG TRP TRP TRP 27 27 27 N 1 5.68 0.50 120.30 125.98 A A A NE CZ NH1 ARG ARG ARG 36 36 36 N 1 6.97 0.80 106.30 113.27 A A A CD1 CG CD2 TRP TRP TRP 41 41 41 N 1 -6.29 1.00 110.10 103.81 A A A CG CD1 NE1 TRP TRP TRP 41 41 41 N 1 -5.87 0.80 107.30 101.43 A A A CE2 CD2 CG TRP TRP TRP 41 41 41 N 1 5.83 0.80 106.30 112.13 A A A CD1 CG CD2 TRP TRP TRP 54 54 54 N 1 -5.26 0.80 107.30 102.04 A A A CE2 CD2 CG TRP TRP TRP 54 54 54 N 1 4.07 0.50 120.30 124.37 A A A NE CZ NH1 ARG ARG ARG 64 64 64 N 1 6.69 0.80 106.30 112.99 A A A CD1 CG CD2 TRP TRP TRP 98 98 98 N 1 -5.58 0.80 107.30 101.72 A A A CE2 CD2 CG TRP TRP TRP 98 98 98 N 1 13.64 2.20 113.40 127.04 A A A CA CB CG ARG ARG ARG 131 131 131 N 1 -3.59 0.50 120.30 116.71 A A A NE CZ NH2 ARG ARG ARG 131 131 131 N 1 -3.80 0.60 121.00 117.20 A A A CB CG CD2 TYR TYR TYR 143 143 143 N 1 6.63 0.80 106.30 112.93 A A A CD1 CG CD2 TRP TRP TRP 147 147 147 N 1 -6.09 0.80 107.30 101.21 A A A CE2 CD2 CG TRP TRP TRP 147 147 147 N 1 7.18 0.80 106.30 113.48 A A A CD1 CG CD2 TRP TRP TRP 179 179 179 N 1 -5.87 0.80 107.30 101.43 A A A CE2 CD2 CG TRP TRP TRP 179 179 179 N 1 -17.41 2.10 111.80 94.39 A A A CG CD NE ARG ARG ARG 240 240 240 N 1 9.39 0.50 120.30 129.69 A A A NE CZ NH1 ARG ARG ARG 240 240 240 N 1 -11.57 0.50 120.30 108.73 A A A NE CZ NH2 ARG ARG ARG 240 240 240 N 1 6.08 0.80 106.30 112.38 A A A CD1 CG CD2 TRP TRP TRP 247 247 247 N 1 -5.70 0.80 107.30 101.60 A A A CE2 CD2 CG TRP TRP TRP 247 247 247 N 1 A A NE2 CD2 HIS HIS 60 60 -0.079 0.011 1.373 1.294 N 1 A A NE2 CD2 HIS HIS 95 95 -0.075 0.011 1.373 1.298 N 1 A A NE2 CD2 HIS HIS 218 218 -0.079 0.011 1.373 1.294 N 1 A HIS 75 -132.73 -56.53 1 A TYR 178 -105.81 -109.40 0.19 1.65 10. 1 1. 1.65 10. 134 1967 11 0 1822 model building X-PLOR refinement PROLSQ refinement X-PLOR phasing X-PLOR ELASTASE (E.C.3.4.21.36) LOW TEMPERATURE FORM (-45 C) DIRECT STRUCTURE OBSERVATION OF AN ACYL-ENZYME INTERMEDIATE IN THE HYDROLYSIS OF AN ESTER SUBSTRATE BY ELASTASE 1 N N 2 N N 3 N N 3 N N 4 N N A ASP 169 A ASP 154 HELX_P A SER 175 A SER 160 1 H1 7 A TYR 244 A TYR 229 HELX_P A ASN 255 A ASN 240 1 H1 12 disulf 2.012 A CYS 45 A SG CYS 30 1_555 A CYS 61 A SG CYS 46 1_555 disulf 1.990 A CYS 142 A SG CYS 127 1_555 A CYS 209 A SG CYS 194 1_555 disulf 2.012 A CYS 173 A SG CYS 158 1_555 A CYS 189 A SG CYS 174 1_555 disulf 2.024 A CYS 199 A SG CYS 184 1_555 A CYS 229 A SG CYS 214 1_555 metalc 2.455 A CA 280 B CA CA 1_555 A ASN 76 A O ASN 61 1_555 metalc 2.598 A CA 280 B CA CA 1_555 A GLU 74 A OE1 GLU 59 1_555 metalc 3.262 A CA 280 B CA CA 1_555 A GLU 74 A OE2 GLU 59 1_555 metalc 2.405 A CA 280 B CA CA 1_555 A GLN 79 A O GLN 64 1_555 metalc 2.652 A CA 280 B CA CA 1_555 A ASN 81 A OD1 ASN 66 1_555 metalc 2.481 A CA 280 B CA CA 1_555 A GLU 84 A OE2 GLU 69 1_555 HYDROLASE(SERINE PROTEINASE) HYDROLASE(SERINE PROTEINASE) ELA1_PIG UNP 1 1 P00772 MLRLLVVASLVLYGHSTQDFPETNARVVGGTEAQRNSWPSQISLQYRSGSSWAHTCGGTLIRQNWVMTAAHCVDRELTFR VVVGEHNLNQNDGTEQYVGVQKIVVHPYWNTDDVAAGYDIALLRLAQSVTLNSYVQLGVLPRAGTILANNSPCYITGWGL TRTNGQLAQTLQQAYLPTVDYAICSSSSYWGSTVKNSMVCAGGDGVRSGCQGDSGGPLHCLVNGQYAVHGVTSFVSRLGC NVTRKPTVFTRVSAYISWINNVIASN 27 266 1ESA 16 255 P00772 A 1 1 240 1 ASP CONFLICT ASN 81 1ESA A P00772 UNP 92 66 7 7 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 anti-parallel anti-parallel A SER 29 A SER 14 A SER 37 A SER 22 A SER 40 A SER 25 A ILE 50 A ILE 35 A ASN 53 A ASN 38 A ALA 59 A ALA 44 A ASP 108 A ASP 93 A GLN 116 A GLN 101 A GLU 84 A GLU 69 A HIS 95 A HIS 80 A PHE 68 A PHE 53 A GLY 73 A GLY 58 A SER 29 A SER 14 A SER 37 A SER 22 A ASN 139 A ASN 124 A THR 150 A THR 135 A GLY 154 A GLY 139 A VAL 168 A VAL 153 A SER 186 A SER 171 A VAL 195 A VAL 180 A ASN 230 A ASN 215 A VAL 241 A VAL 226 A HIS 218 A HIS 203 A VAL 224 A VAL 209 A SER 203 A SER 188 A CYS 209 A CYS 194 A SER 140 A SER 125 A THR 150 A THR 135 A GLY 154 A GLY 139 A ALA 157 A ALA 142 A TRP 147 A TRP 132 A LEU 149 A LEU 134 A GLN 200 A GLN 185 A ASP 202 A ASP 187 Unknown 3 BINDING SITE FOR RESIDUE CA A 280 Software 5 BINDING SITE FOR RESIDUE SO4 A 290 Software 6 BINDING SITE FOR RESIDUE SO4 A 295 Software 6 A ASP 108 A ASP 93 3 1_555 A HIS 60 A HIS 45 3 1_555 A SER 203 A SER 188 3 1_555 A GLU 74 A GLU 59 5 1_555 A ASN 76 A ASN 61 5 1_555 A GLN 79 A GLN 64 5 1_555 A ASN 81 A ASN 66 5 1_555 A GLU 84 A GLU 69 5 1_555 A GLY 133 A GLY 118 6 1_555 A ARG 151 A ARG 136 6 2_665 A ARG 240 A ARG 225 6 1_555 A SER 242 A SER 227 6 1_555 A ALA 243 A ALA 228 6 1_555 A HOH 347 E HOH 6 2_665 A CYS 45 A CYS 30 6 1_555 A HIS 60 A HIS 45 6 1_555 A GLN 200 A GLN 185 6 1_555 A GLY 201 A GLY 186 6 1_555 A SER 203 A SER 188 6 1_555 A HOH 369 E HOH 6 1_555 19 P 21 21 21