0.011250 0.000000 -0.000029 0.000000 0.013673 0.000000 0.000000 0.000000 0.019548 0.00000 0.00000 0.00000 Cha, S.S. Oh, B.H. Nam, G.H. Jang, D.S. Lee, T.H. Choi, K.Y. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 8 90.00 89.85 90.00 88.889 73.135 51.156 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 US Biochemistry BICHAW 0033 0006-2960 40 13529 13537 10.1021/bi015547k 11695900 Maintenance of alpha-helical structures by phenyl rings in the active-site tyrosine triad contributes to catalysis and stability of ketosteroid isomerase from Pseudomonas putida biotype B 2001 10.2210/pdb1k41/pdb pdb_00001k41 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 100 1 monochromator IMAGE PLATE 1997-07-18 MACSCIENCE Graphite SINGLE WAVELENGTH M x-ray 1 1.5418 1.0 1.5418 ROTATING ANODE MACSCIENCE 14472.403 Ketosteroid Isomerase 5.3.3.1 Y57S 2 man polymer 18.015 water 41 nat water Steroid delta-isomerase no no MNLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFSRQGLGGGKVRACLTGPVRASHNG CGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTMQAYWSEVNLSVREPQ MNLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFSRQGLGGGKVRACLTGPVRASHNG CGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTMQAYWSEVNLSVREPQ A,B 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 Pseudomonas Escherichia sample 303 Pseudomonas putida 562 Escherichia coli 1 2.87 57.15 EVAPORATION 4.6 Sodium Acetate, Ammonium acetate, pH 4.6, EVAPORATION, temperature 295K 295 database_2 struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Database references 1 0 2002-10-16 1 1 2008-05-05 1 2 2011-07-13 1 3 2021-11-10 _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_ref_seq_dif.details RCSB Y PDBJ 2001-10-05 REL HOH water HOH 504 2 HOH HOH 504 A HOH 505 2 HOH HOH 505 A HOH 506 2 HOH HOH 506 A HOH 507 2 HOH HOH 507 A HOH 508 2 HOH HOH 508 A HOH 514 2 HOH HOH 514 A HOH 515 2 HOH HOH 515 A HOH 516 2 HOH HOH 516 A HOH 517 2 HOH HOH 517 A HOH 518 2 HOH HOH 518 A HOH 522 2 HOH HOH 522 A HOH 523 2 HOH HOH 523 A HOH 524 2 HOH HOH 524 A HOH 525 2 HOH HOH 525 A HOH 526 2 HOH HOH 526 A HOH 527 2 HOH HOH 527 A HOH 528 2 HOH HOH 528 A HOH 529 2 HOH HOH 529 A HOH 532 2 HOH HOH 532 A HOH 539 2 HOH HOH 539 A HOH 540 2 HOH HOH 540 A HOH 501 2 HOH HOH 501 B HOH 502 2 HOH HOH 502 B HOH 503 2 HOH HOH 503 B HOH 509 2 HOH HOH 509 B HOH 510 2 HOH HOH 510 B HOH 511 2 HOH HOH 511 B HOH 512 2 HOH HOH 512 B HOH 513 2 HOH HOH 513 B HOH 519 2 HOH HOH 519 B HOH 520 2 HOH HOH 520 B HOH 521 2 HOH HOH 521 B HOH 530 2 HOH HOH 530 B HOH 531 2 HOH HOH 531 B HOH 533 2 HOH HOH 533 B HOH 534 2 HOH HOH 534 B HOH 535 2 HOH HOH 535 B HOH 536 2 HOH HOH 536 B HOH 537 2 HOH HOH 537 B HOH 538 2 HOH HOH 538 B HOH 541 2 HOH HOH 541 B n 1 1 A ASN 2 n 2 ASN 2 A LEU 3 n 3 LEU 3 A PRO 4 n 4 PRO 4 A THR 5 n 5 THR 5 A ALA 6 n 6 ALA 6 A GLN 7 n 7 GLN 7 A GLU 8 n 8 GLU 8 A VAL 9 n 9 VAL 9 A GLN 10 n 10 GLN 10 A GLY 11 n 11 GLY 11 A LEU 12 n 12 LEU 12 A MET 13 n 13 MET 13 A ALA 14 n 14 ALA 14 A ARG 15 n 15 ARG 15 A TYR 16 n 16 TYR 16 A ILE 17 n 17 ILE 17 A GLU 18 n 18 GLU 18 A LEU 19 n 19 LEU 19 A VAL 20 n 20 VAL 20 A ASP 21 n 21 ASP 21 A VAL 22 n 22 VAL 22 A GLY 23 n 23 GLY 23 A ASP 24 n 24 ASP 24 A ILE 25 n 25 ILE 25 A GLU 26 n 26 GLU 26 A ALA 27 n 27 ALA 27 A ILE 28 n 28 ILE 28 A VAL 29 n 29 VAL 29 A GLN 30 n 30 GLN 30 A MET 31 n 31 MET 31 A TYR 32 n 32 TYR 32 A ALA 33 n 33 ALA 33 A ASP 34 n 34 ASP 34 A ASP 35 n 35 ASP 35 A ALA 36 n 36 ALA 36 A THR 37 n 37 THR 37 A VAL 38 n 38 VAL 38 A GLU 39 n 39 GLU 39 A ASP 40 n 40 ASP 40 A PRO 41 n 41 PRO 41 A PHE 42 n 42 PHE 42 A GLY 43 n 43 GLY 43 A GLN 44 n 44 GLN 44 A PRO 45 n 45 PRO 45 A PRO 46 n 46 PRO 46 A ILE 47 n 47 ILE 47 A HIS 48 n 48 HIS 48 A GLY 49 n 49 GLY 49 A ARG 50 n 50 ARG 50 A GLU 51 n 51 GLU 51 A GLN 52 n 52 GLN 52 A ILE 53 n 53 ILE 53 A ALA 54 n 54 ALA 54 A ALA 55 n 55 ALA 55 A PHE 56 n 56 PHE 56 A SER 57 n 57 SER 57 A ARG 58 n 58 ARG 58 A GLN 59 n 59 GLN 59 A GLY 60 n 60 GLY 60 A n 61 61 A n 62 62 A n 63 63 A n 64 64 A LYS 65 n 65 LYS 65 A VAL 66 n 66 VAL 66 A ARG 67 n 67 ARG 67 A ALA 68 n 68 ALA 68 A CYS 69 n 69 CYS 69 A LEU 70 n 70 LEU 70 A THR 71 n 71 THR 71 A GLY 72 n 72 GLY 72 A PRO 73 n 73 PRO 73 A VAL 74 n 74 VAL 74 A ARG 75 n 75 ARG 75 A ALA 76 n 76 ALA 76 A SER 77 n 77 SER 77 A HIS 78 n 78 HIS 78 A ASN 79 n 79 ASN 79 A GLY 80 n 80 GLY 80 A CYS 81 n 81 CYS 81 A GLY 82 n 82 GLY 82 A ALA 83 n 83 ALA 83 A MET 84 n 84 MET 84 A PRO 85 n 85 PRO 85 A PHE 86 n 86 PHE 86 A ARG 87 n 87 ARG 87 A VAL 88 n 88 VAL 88 A GLU 89 n 89 GLU 89 A MET 90 n 90 MET 90 A VAL 91 n 91 VAL 91 A TRP 92 n 92 TRP 92 A ASN 93 n 93 ASN 93 A GLY 94 n 94 GLY 94 A GLN 95 n 95 GLN 95 A PRO 96 n 96 PRO 96 A CYS 97 n 97 CYS 97 A ALA 98 n 98 ALA 98 A LEU 99 n 99 LEU 99 A ASP 100 n 100 ASP 100 A VAL 101 n 101 VAL 101 A ILE 102 n 102 ILE 102 A ASP 103 n 103 ASP 103 A VAL 104 n 104 VAL 104 A MET 105 n 105 MET 105 A ARG 106 n 106 ARG 106 A PHE 107 n 107 PHE 107 A ASP 108 n 108 ASP 108 A GLU 109 n 109 GLU 109 A HIS 110 n 110 HIS 110 A GLY 111 n 111 GLY 111 A ARG 112 n 112 ARG 112 A ILE 113 n 113 ILE 113 A GLN 114 n 114 GLN 114 A THR 115 n 115 THR 115 A MET 116 n 116 MET 116 A GLN 117 n 117 GLN 117 A ALA 118 n 118 ALA 118 A TYR 119 n 119 TYR 119 A TRP 120 n 120 TRP 120 A SER 121 n 121 SER 121 A GLU 122 n 122 GLU 122 A VAL 123 n 123 VAL 123 A ASN 124 n 124 ASN 124 A LEU 125 n 125 LEU 125 A SER 126 n 126 SER 126 A n 127 127 A n 128 128 A n 129 129 A n 130 130 A n 131 131 A n 1 201 B ASN 202 n 2 ASN 202 B LEU 203 n 3 LEU 203 B PRO 204 n 4 PRO 204 B THR 205 n 5 THR 205 B ALA 206 n 6 ALA 206 B GLN 207 n 7 GLN 207 B GLU 208 n 8 GLU 208 B VAL 209 n 9 VAL 209 B GLN 210 n 10 GLN 210 B GLY 211 n 11 GLY 211 B LEU 212 n 12 LEU 212 B MET 213 n 13 MET 213 B ALA 214 n 14 ALA 214 B ARG 215 n 15 ARG 215 B TYR 216 n 16 TYR 216 B ILE 217 n 17 ILE 217 B GLU 218 n 18 GLU 218 B LEU 219 n 19 LEU 219 B VAL 220 n 20 VAL 220 B ASP 221 n 21 ASP 221 B VAL 222 n 22 VAL 222 B GLY 223 n 23 GLY 223 B ASP 224 n 24 ASP 224 B ILE 225 n 25 ILE 225 B GLU 226 n 26 GLU 226 B ALA 227 n 27 ALA 227 B ILE 228 n 28 ILE 228 B VAL 229 n 29 VAL 229 B GLN 230 n 30 GLN 230 B MET 231 n 31 MET 231 B TYR 232 n 32 TYR 232 B ALA 233 n 33 ALA 233 B ASP 234 n 34 ASP 234 B ASP 235 n 35 ASP 235 B ALA 236 n 36 ALA 236 B THR 237 n 37 THR 237 B VAL 238 n 38 VAL 238 B GLU 239 n 39 GLU 239 B ASP 240 n 40 ASP 240 B PRO 241 n 41 PRO 241 B PHE 242 n 42 PHE 242 B GLY 243 n 43 GLY 243 B GLN 244 n 44 GLN 244 B PRO 245 n 45 PRO 245 B PRO 246 n 46 PRO 246 B ILE 247 n 47 ILE 247 B HIS 248 n 48 HIS 248 B GLY 249 n 49 GLY 249 B ARG 250 n 50 ARG 250 B GLU 251 n 51 GLU 251 B GLN 252 n 52 GLN 252 B ILE 253 n 53 ILE 253 B ALA 254 n 54 ALA 254 B ALA 255 n 55 ALA 255 B PHE 256 n 56 PHE 256 B SER 257 n 57 SER 257 B ARG 258 n 58 ARG 258 B GLN 259 n 59 GLN 259 B GLY 260 n 60 GLY 260 B n 61 261 B n 62 262 B n 63 263 B n 64 264 B LYS 265 n 65 LYS 265 B VAL 266 n 66 VAL 266 B ARG 267 n 67 ARG 267 B ALA 268 n 68 ALA 268 B CYS 269 n 69 CYS 269 B LEU 270 n 70 LEU 270 B THR 271 n 71 THR 271 B GLY 272 n 72 GLY 272 B PRO 273 n 73 PRO 273 B VAL 274 n 74 VAL 274 B ARG 275 n 75 ARG 275 B ALA 276 n 76 ALA 276 B SER 277 n 77 SER 277 B HIS 278 n 78 HIS 278 B ASN 279 n 79 ASN 279 B GLY 280 n 80 GLY 280 B CYS 281 n 81 CYS 281 B GLY 282 n 82 GLY 282 B ALA 283 n 83 ALA 283 B MET 284 n 84 MET 284 B PRO 285 n 85 PRO 285 B PHE 286 n 86 PHE 286 B ARG 287 n 87 ARG 287 B VAL 288 n 88 VAL 288 B GLU 289 n 89 GLU 289 B MET 290 n 90 MET 290 B VAL 291 n 91 VAL 291 B TRP 292 n 92 TRP 292 B ASN 293 n 93 ASN 293 B GLY 294 n 94 GLY 294 B GLN 295 n 95 GLN 295 B PRO 296 n 96 PRO 296 B CYS 297 n 97 CYS 297 B ALA 298 n 98 ALA 298 B LEU 299 n 99 LEU 299 B ASP 300 n 100 ASP 300 B VAL 301 n 101 VAL 301 B ILE 302 n 102 ILE 302 B ASP 303 n 103 ASP 303 B VAL 304 n 104 VAL 304 B MET 305 n 105 MET 305 B ARG 306 n 106 ARG 306 B PHE 307 n 107 PHE 307 B ASP 308 n 108 ASP 308 B GLU 309 n 109 GLU 309 B HIS 310 n 110 HIS 310 B GLY 311 n 111 GLY 311 B ARG 312 n 112 ARG 312 B ILE 313 n 113 ILE 313 B GLN 314 n 114 GLN 314 B THR 315 n 115 THR 315 B MET 316 n 116 MET 316 B GLN 317 n 117 GLN 317 B ALA 318 n 118 ALA 318 B TYR 319 n 119 TYR 319 B TRP 320 n 120 TRP 320 B SER 321 n 121 SER 321 B GLU 322 n 122 GLU 322 B VAL 323 n 123 VAL 323 B ASN 324 n 124 ASN 324 B LEU 325 n 125 LEU 325 B SER 326 n 126 SER 326 B n 127 327 B n 128 328 B n 129 329 B n 130 330 B n 131 331 B author_and_software_defined_assembly PISA 2 dimeric 2050 -10 12110 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 N ILE 47 A N ILE 47 A O VAL 38 A O VAL 38 A N ALA 33 A N ALA 33 A O ILE 113 A O ILE 113 A N TYR 119 A N TYR 119 A O ILE 102 A O ILE 102 A O ALA 98 A O ALA 98 A N SER 126 A N SER 126 A N SER 126 A N SER 126 A O ALA 98 A O ALA 98 A O MET 105 A O MET 105 A N GLY 82 A N GLY 82 A N GLU 89 A N GLU 89 A O ARG 67 A O ARG 67 A O CYS 69 A O CYS 69 A N ARG 87 A N ARG 87 A O ALA 83 A O ALA 83 A N ARG 75 A N ARG 75 B N ILE 247 B N ILE 47 B O VAL 238 B O VAL 38 B N ALA 233 B N ALA 33 B O ILE 313 B O ILE 113 B N GLN 317 B N GLN 117 B O VAL 304 B O VAL 104 B O MET 305 B O MET 105 B N GLY 282 B N GLY 82 B N TRP 292 B N TRP 92 B O GLN 295 B O GLN 95 B N CYS 297 B N CYS 97 B O MET 290 B O MET 90 B O ALA 283 B O ALA 83 B N ARG 275 B N ARG 75 B N ARG 275 B N ARG 75 B O ALA 283 B O ALA 83 B N GLU 289 B N GLU 89 B O ARG 267 B O ARG 67 1 A CG ASN 2 A CG ASN 2 1 Y 1 A OD1 ASN 2 A OD1 ASN 2 1 Y 1 A ND2 ASN 2 A ND2 ASN 2 1 Y 1 A CG LEU 3 A CG LEU 3 1 Y 1 A CD1 LEU 3 A CD1 LEU 3 1 Y 1 A CD2 LEU 3 A CD2 LEU 3 1 Y 1 A CG ARG 67 A CG ARG 67 1 Y 1 A CD ARG 67 A CD ARG 67 1 Y 1 A NE ARG 67 A NE ARG 67 1 Y 1 A CZ ARG 67 A CZ ARG 67 1 Y 1 A NH1 ARG 67 A NH1 ARG 67 1 Y 1 A NH2 ARG 67 A NH2 ARG 67 1 Y 1 A SG CYS 69 A SG CYS 69 1 Y 1 B CG ASN 202 B CG ASN 2 1 Y 1 B OD1 ASN 202 B OD1 ASN 2 1 Y 1 B ND2 ASN 202 B ND2 ASN 2 1 Y 1 B CG LEU 203 B CG LEU 3 1 Y 1 B CD1 LEU 203 B CD1 LEU 3 1 Y 1 B CD2 LEU 203 B CD2 LEU 3 1 Y 1 B CG GLU 309 B CG GLU 109 1 Y 1 B CD GLU 309 B CD GLU 109 1 Y 1 B OE1 GLU 309 B OE1 GLU 109 1 Y 1 B OE2 GLU 309 B OE2 GLU 109 1 Y 1 A MET 1 A MET 1 1 Y 1 A LEU 61 A LEU 61 1 Y 1 A GLY 62 A GLY 62 1 Y 1 A GLY 63 A GLY 63 1 Y 1 A GLY 64 A GLY 64 1 Y 1 A VAL 127 A VAL 127 1 Y 1 A ARG 128 A ARG 128 1 Y 1 A GLU 129 A GLU 129 1 Y 1 A PRO 130 A PRO 130 1 Y 1 A GLN 131 A GLN 131 1 Y 1 B MET 201 B MET 1 1 Y 1 B LEU 261 B LEU 61 1 Y 1 B GLY 262 B GLY 62 1 Y 1 B GLY 263 B GLY 63 1 Y 1 B GLY 264 B GLY 64 1 Y 1 B VAL 327 B VAL 127 1 Y 1 B ARG 328 B ARG 128 1 Y 1 B GLU 329 B GLU 129 1 Y 1 B PRO 330 B PRO 130 1 Y 1 B GLN 331 B GLN 131 1 Y 1 B B CD O PRO HOH 241 537 0.59 1 B B O O HOH HOH 537 538 0.95 1 B B CD O PRO HOH 241 538 1.52 1 B B N O PRO HOH 241 537 1.72 1 A A CD1 O LEU HOH 99 539 1.74 1 A A O N LYS VAL 65 66 1.78 1 B B CB O PRO HOH 241 536 1.86 1 B B CG O PRO HOH 241 537 1.97 1 B B N O PRO HOH 241 538 2.16 1 A LYS 65 12.55 1 B LYS 265 -27.31 1 A A C N LYS VAL 65 66 1.05 1 17.95 2.20 117.20 135.15 A A A CA C N LYS LYS VAL 65 65 66 Y 1 -21.43 1.60 122.70 101.27 A A A O C N LYS LYS VAL 65 65 66 Y 1 26.57 2.50 121.70 148.27 A A A C N CA LYS VAL VAL 65 66 66 Y 1 -22.46 1.60 122.70 100.24 B B B O C N LYS LYS VAL 265 265 266 Y 1 A A C N LYS VAL 65 66 -0.290 0.023 1.336 1.046 Y 1 A LEU 3 81.28 -83.79 1 A GLN 44 -42.19 156.32 1 A MET 90 -125.51 -140.85 1 A VAL 91 -165.51 103.99 1 A ASN 93 51.76 71.95 1 A PRO 96 -35.60 102.08 1 A TRP 120 177.94 163.43 1 A SER 121 -162.96 -159.77 1 B LEU 203 99.98 -70.55 1 B THR 205 -61.21 -179.43 1 B ASP 224 -67.68 92.60 1 B VAL 229 -63.63 11.63 1 B ALA 236 -42.78 162.03 1 B VAL 266 167.89 123.40 1 B MET 290 -161.05 -162.69 1 B ASN 293 43.69 80.85 1 B CYS 297 -171.41 129.77 1 B ILE 313 -62.02 97.64 1 B SER 321 175.37 172.08 0.3150000 0.2350000 0.2350000 0.2350000 2.2 8 774 20000 15486 4.998 1 2 MOLECULAR REPLACEMENT Engh & Huber 2.2 8 41 1896 0 0 1855 0.083 3.172 2.2 20 1K41 20000 15486 1 1 1 94.9 2.2 2.4 82 data reduction DENZO data scaling SCALEPACK phasing AMoRE refinement X-PLOR 3.851 Crystal structure of KSI Y57S mutant 1 N N 1 N N 2 N N 2 N N The active form of KSI is dimer A THR 5 A THR 5 HELX_P A VAL 22 A VAL 22 1 1 18 A ASP 24 A ASP 24 HELX_P A VAL 29 A VAL 29 1 2 6 A GLY 49 A GLY 49 HELX_P A GLY 60 A GLY 60 1 3 12 A SER 121 A SER 121 HELX_P A VAL 123 A VAL 123 5 4 3 B THR 205 B THR 5 HELX_P B GLY 223 B GLY 23 1 5 19 B ASP 224 B ASP 24 HELX_P B VAL 229 B VAL 29 1 6 6 B SER 321 B SER 121 HELX_P B LEU 325 B LEU 125 5 8 5 ISOMERASE KSI Y57S Helix, ISOMERASE A ASP 40 A ASP 40 1 A PRO 41 A PRO 41 0.26 B ASP 240 B ASP 40 1 B PRO 241 B PRO 41 -0.25 SDIS_PSEPU UNP 1 1 P07445 MNLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFYRQGLGGGKVRACLTGPVRASHNG CGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTMQAYWSEVNLSVREPQ 1 131 1K41 1 131 P07445 A 1 1 131 1 131 1K41 201 331 P07445 B 1 1 131 1 TYR engineered mutation SER 57 1K41 A P07445 UNP 57 57 2 TYR engineered mutation SER 257 1K41 B P07445 UNP 57 57 10 10 anti-parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A ILE 47 A ILE 47 A HIS 48 A HIS 48 A TYR 32 A TYR 32 A GLU 39 A GLU 39 A ILE 113 A ILE 113 A TYR 119 A TYR 119 A ALA 98 A ALA 98 A PHE 107 A PHE 107 A LEU 125 A LEU 125 A SER 126 A SER 126 A ALA 98 A ALA 98 A PHE 107 A PHE 107 A CYS 81 A CYS 81 A GLU 89 A GLU 89 A ARG 67 A ARG 67 A LEU 70 A LEU 70 A CYS 81 A CYS 81 A GLU 89 A GLU 89 A ARG 75 A ARG 75 A ALA 76 A ALA 76 B ILE 247 B ILE 47 B HIS 248 B HIS 48 B TYR 232 B TYR 32 B GLU 239 B GLU 39 B ILE 313 B ILE 113 B ALA 318 B ALA 118 B ASP 300 B ASP 100 B PHE 307 B PHE 107 B CYS 281 B CYS 81 B TRP 292 B TRP 92 B GLN 295 B GLN 95 B CYS 297 B CYS 97 B CYS 281 B CYS 81 B TRP 292 B TRP 92 B ARG 275 B ARG 75 B ALA 276 B ALA 76 B CYS 281 B CYS 81 B TRP 292 B TRP 92 B ARG 267 B ARG 67 B LEU 270 B LEU 70 5 C 1 2 1