1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Hemmi, H. Kumazaki, T. Yamazaki, T. Kojima, S. Yoshida, T. Kyogoku, Y. Katsu, M. Yokosawa, H. Miura, K. Kobayashi, Y. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 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 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 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 C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking N 1 N N N 2 S C N 3 N C N 4 N O N 5 N C N 6 N O N 7 N H N 8 N H N 9 N H N 10 N H N 11 N H N 12 N H N 13 N H N 14 N N N 15 S C N 16 N C N 17 N O N 18 N C N 19 N C N 20 N C N 21 N N N 22 N C N 23 N N N 24 N N N 25 N O N 26 N H N 27 N H N 28 N H N 29 N H N 30 N H N 31 N H N 32 N H N 33 N H N 34 N H N 35 N H N 36 N H N 37 N H N 38 N H N 39 N H N 40 N H N 41 N N N 42 S C N 43 N C N 44 N O N 45 N C N 46 N C N 47 N O N 48 N N N 49 N O N 50 N H N 51 N H N 52 N H N 53 N H N 54 N H N 55 N H N 56 N H N 57 N H N 58 N N N 59 S C N 60 N C N 61 N O N 62 N C N 63 N C N 64 N O N 65 N O N 66 N O N 67 N H N 68 N H N 69 N H N 70 N H N 71 N H N 72 N H N 73 N H N 74 N N N 75 R C N 76 N C N 77 N O N 78 N C N 79 N S N 80 N O N 81 N H N 82 N H N 83 N H N 84 N H N 85 N H N 86 N H N 87 N H N 88 N N N 89 S C N 90 N C N 91 N O N 92 N C N 93 N C N 94 N C N 95 N O N 96 N O N 97 N O N 98 N H N 99 N H N 100 N H N 101 N H N 102 N H N 103 N H N 104 N H N 105 N H N 106 N H N 107 N N N 108 N C N 109 N C N 110 N O N 111 N O N 112 N H N 113 N H N 114 N H N 115 N H N 116 N H N 117 N N N 118 S C N 119 N C N 120 N O N 121 N C Y 122 N C Y 123 N N Y 124 N C Y 125 N C Y 126 N N N 127 N O N 128 N H N 129 N H N 130 N H N 131 N H N 132 N H N 133 N H N 134 N H N 135 N H N 136 N H N 137 N H N 138 N N N 139 S C N 140 N C N 141 N O N 142 N C N 143 N C N 144 N C N 145 N C N 146 N O N 147 N H N 148 N H N 149 N H N 150 N H N 151 N H N 152 N H N 153 N H N 154 N H N 155 N H N 156 N H N 157 N H N 158 N H N 159 N H N 160 N N N 161 S C N 162 N C N 163 N O N 164 N C N 165 N C N 166 N C N 167 N C N 168 N N N 169 N O N 170 N H N 171 N H N 172 N H N 173 N H N 174 N H N 175 N H N 176 N H N 177 N H N 178 N H N 179 N H N 180 N H N 181 N H N 182 N H N 183 N H N 184 N H N 185 N N N 186 S C N 187 N C N 188 N O N 189 N C N 190 N C N 191 N S N 192 N C N 193 N O N 194 N H N 195 N H N 196 N H N 197 N H N 198 N H N 199 N H N 200 N H N 201 N H N 202 N H N 203 N H N 204 N H N 205 N N N 206 S C N 207 N C N 208 N O N 209 N C Y 210 N C Y 211 N C Y 212 N C Y 213 N C Y 214 N C Y 215 N C N 216 N O N 217 N H N 218 N H N 219 N H N 220 N H N 221 N H N 222 N H N 223 N H N 224 N H N 225 N H N 226 N H N 227 N H N 228 N N N 229 S C N 230 N C N 231 N O N 232 N C N 233 N C N 234 N C N 235 N O N 236 N H N 237 N H N 238 N H N 239 N H N 240 N H N 241 N H N 242 N H N 243 N H N 244 N H N 245 N N N 246 S C N 247 N C N 248 N O N 249 N C N 250 N O N 251 N O N 252 N H N 253 N H N 254 N H N 255 N H N 256 N H N 257 N H N 258 N H N 259 N N N 260 S C N 261 N C N 262 N O N 263 R C N 264 N O N 265 N C N 266 N O N 267 N H N 268 N H N 269 N H N 270 N H N 271 N H N 272 N H N 273 N H N 274 N H N 275 N H N 276 N N N 277 S C N 278 N C N 279 N O N 280 N C Y 281 N C Y 282 N C Y 283 N C Y 284 N C Y 285 N C Y 286 N C N 287 N O N 288 N O N 289 N H N 290 N H N 291 N H N 292 N H N 293 N H N 294 N H N 295 N H N 296 N H N 297 N H N 298 N H N 299 N H N 300 N N N 301 S C N 302 N C N 303 N O N 304 N C N 305 N C N 306 N C N 307 N O N 308 N H N 309 N H N 310 N H N 311 N H N 312 N H N 313 N H N 314 N H N 315 N H N 316 N H N 317 N H N 318 N H N 1 N sing N 2 N sing N 3 N sing N 4 N sing N 5 N sing N 6 N sing N 7 N doub N 8 N sing N 9 N sing N 10 N sing N 11 N sing N 12 N sing N 13 N sing N 14 N sing N 15 N sing N 16 N sing N 17 N sing N 18 N sing N 19 N doub N 20 N sing N 21 N sing N 22 N sing N 23 N sing N 24 N sing N 25 N sing N 26 N sing N 27 N sing N 28 N sing N 29 N sing N 30 N sing N 31 N sing N 32 N sing N 33 N doub N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N sing N 39 N sing N 40 N sing N 41 N sing N 42 N sing N 43 N sing N 44 N sing N 45 N doub N 46 N sing N 47 N sing N 48 N sing N 49 N sing N 50 N doub N 51 N sing N 52 N sing N 53 N sing N 54 N sing N 55 N sing N 56 N sing N 57 N sing N 58 N sing N 59 N sing N 60 N sing N 61 N doub N 62 N sing N 63 N sing N 64 N sing N 65 N sing N 66 N doub N 67 N sing N 68 N sing N 69 N sing N 70 N sing N 71 N sing N 72 N sing N 73 N sing N 74 N sing N 75 N sing N 76 N doub N 77 N sing N 78 N sing N 79 N sing N 80 N sing N 81 N sing N 82 N sing N 83 N sing N 84 N sing N 85 N sing N 86 N sing N 87 N sing N 88 N sing N 89 N doub N 90 N sing N 91 N sing N 92 N sing N 93 N sing N 94 N sing N 95 N sing N 96 N sing N 97 N doub N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N sing N 103 N sing N 104 N sing N 105 N sing N 106 N sing N 107 N doub N 108 N sing N 109 N sing N 110 N sing N 111 N sing N 112 N sing N 113 N sing N 114 N sing N 115 N sing N 116 N doub N 117 N sing N 118 N sing N 119 N sing N 120 N sing Y 121 N sing Y 122 N doub Y 123 N doub N 124 N sing Y 125 N sing N 126 N sing Y 127 N sing N 128 N sing N 129 N sing N 130 N sing N 131 N sing N 132 N sing N 133 N sing N 134 N sing N 135 N sing N 136 N sing N 137 N doub N 138 N sing N 139 N sing N 140 N sing N 141 N sing N 142 N sing N 143 N sing N 144 N sing N 145 N sing N 146 N sing N 147 N sing N 148 N sing N 149 N sing N 150 N sing N 151 N sing N 152 N sing N 153 N sing N 154 N sing N 155 N sing N 156 N sing N 157 N sing N 158 N doub N 159 N sing N 160 N sing N 161 N sing N 162 N sing N 163 N sing N 164 N sing N 165 N sing N 166 N sing N 167 N sing N 168 N sing N 169 N sing N 170 N sing N 171 N sing N 172 N sing N 173 N sing N 174 N sing N 175 N sing N 176 N sing N 177 N sing N 178 N sing N 179 N sing N 180 N sing N 181 N sing N 182 N doub N 183 N sing N 184 N sing N 185 N sing N 186 N sing N 187 N sing N 188 N sing N 189 N sing N 190 N sing N 191 N sing N 192 N sing N 193 N sing N 194 N sing N 195 N sing N 196 N sing N 197 N sing N 198 N sing N 199 N sing N 200 N sing N 201 N doub N 202 N sing N 203 N sing N 204 N sing N 205 N sing Y 206 N doub Y 207 N sing Y 208 N sing N 209 N sing Y 210 N doub N 211 N sing Y 212 N doub N 213 N sing Y 214 N sing N 215 N sing N 216 N sing N 217 N sing N 218 N sing N 219 N sing N 220 N sing N 221 N sing N 222 N sing N 223 N sing N 224 N doub N 225 N sing N 226 N sing N 227 N sing N 228 N sing N 229 N sing N 230 N sing N 231 N sing N 232 N sing N 233 N sing N 234 N sing N 235 N sing N 236 N sing N 237 N sing N 238 N sing N 239 N sing N 240 N sing N 241 N doub N 242 N sing N 243 N sing N 244 N sing N 245 N sing N 246 N sing N 247 N sing N 248 N sing N 249 N sing N 250 N sing N 251 N sing N 252 N sing N 253 N sing N 254 N doub N 255 N sing N 256 N sing N 257 N sing N 258 N sing N 259 N sing N 260 N sing N 261 N sing N 262 N sing N 263 N sing N 264 N sing N 265 N sing N 266 N sing N 267 N sing N 268 N sing N 269 N sing N 270 N doub N 271 N sing N 272 N sing N 273 N sing N 274 N sing Y 275 N doub Y 276 N sing Y 277 N sing N 278 N sing Y 279 N doub N 280 N sing Y 281 N doub N 282 N sing Y 283 N sing N 284 N sing N 285 N sing N 286 N sing N 287 N sing N 288 N sing N 289 N sing N 290 N sing N 291 N sing N 292 N sing N 293 N sing N 294 N doub N 295 N sing N 296 N sing N 297 N sing N 298 N sing N 299 N sing N 300 N sing N 301 N sing N 302 N sing N 303 N sing N 304 N sing N 305 N sing US BIOCHEMISTRY BICHAW 0033 0006-2960 42 2524 2534 10.1021/bi026727c 12614146 Inhibitory Specificity Change of Ovomucoid Third Domain of the Silver Pheasant upon Introduction of an Engineered Cys14-Cys39 Bond 2003 10.2210/pdb1iy6/pdb pdb_00001iy6 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 SINGLE WAVELENGTH M 1 1.0 5855.681 OMSVP3 third domain P14C/N39C 1 man polymer ovomucoid no no AVSVDCSEYPKCACTMEYRPLCGSDNKTYGNKCNFCCAVVESNGTLTLSHFGKC AVSVDCSEYPKCACTMEYRPLCGSDNKTYGNKCNFCCAVVESNGTLTLSHFGKC 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 silver pheasant Lophura Escherichia Escherichia coli sample 9046 Lophura nycthemera 511693 Escherichia coli BL21 BL21 PLASMID pET22b database_2 pdbx_nmr_software pdbx_struct_assembly pdbx_struct_oper_list struct_ref_seq_dif chem_comp_atom chem_comp_bond repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations Data collection 1 0 2003-03-11 1 1 2008-04-27 1 2 2011-07-13 1 3 2021-11-10 1 4 2023-12-27 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_software.name _struct_ref_seq_dif.details 1IY5 contains wild type OMSVP3 PDBJ Y PDBJ 2002-07-23 REL REL This structure was determined using standard 2D homonuclear techniques. low total energy and low deviation from mean structure 100 15 NOESY DQF-COSY TOCSY 4.0 ambient 298 K distance geometry, simulated annealing 7 lowest energy 4.0mM P14C/N39C(OMSVP3 variant); 90%H2O, 10% D2O 90% H2O/10% D2O Bruker collection XwinNMR 2.6 Delaglio processing NMRPipe 2.1 Garrett data analysis NMRPIPP 4.3.2 Brunger refinement X-PLOR 3.1 500 Bruker AMX 600 Bruker DRX ALA 3 n 1 ALA 3 A VAL 4 n 2 VAL 4 A SER 5 n 3 SER 5 A VAL 6 n 4 VAL 6 A ASP 7 n 5 ASP 7 A CYS 8 n 6 CYS 8 A SER 9 n 7 SER 9 A GLU 10 n 8 GLU 10 A TYR 11 n 9 TYR 11 A PRO 12 n 10 PRO 12 A LYS 13 n 11 LYS 13 A CYS 14 n 12 CYS 14 A ALA 15 n 13 ALA 15 A CYS 16 n 14 CYS 16 A THR 17 n 15 THR 17 A MET 18 n 16 MET 18 A GLU 19 n 17 GLU 19 A TYR 20 n 18 TYR 20 A ARG 21 n 19 ARG 21 A PRO 22 n 20 PRO 22 A LEU 23 n 21 LEU 23 A CYS 24 n 22 CYS 24 A GLY 25 n 23 GLY 25 A SER 26 n 24 SER 26 A ASP 27 n 25 ASP 27 A ASN 28 n 26 ASN 28 A LYS 29 n 27 LYS 29 A THR 30 n 28 THR 30 A TYR 31 n 29 TYR 31 A GLY 32 n 30 GLY 32 A ASN 33 n 31 ASN 33 A LYS 34 n 32 LYS 34 A CYS 35 n 33 CYS 35 A ASN 36 n 34 ASN 36 A PHE 37 n 35 PHE 37 A CYS 38 n 36 CYS 38 A CYS 39 n 37 CYS 39 A ALA 40 n 38 ALA 40 A VAL 41 n 39 VAL 41 A VAL 42 n 40 VAL 42 A GLU 43 n 41 GLU 43 A SER 44 n 42 SER 44 A ASN 45 n 43 ASN 45 A GLY 46 n 44 GLY 46 A THR 47 n 45 THR 47 A LEU 48 n 46 LEU 48 A THR 49 n 47 THR 49 A LEU 50 n 48 LEU 50 A SER 51 n 49 SER 51 A HIS 52 n 50 HIS 52 A PHE 53 n 51 PHE 53 A GLY 54 n 52 GLY 54 A LYS 55 n 53 LYS 55 A CYS 56 n 54 CYS 56 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 identity operation 0.0000000000 0.0000000000 0.0000000000 A O LYS 29 A O LYS 27 A N GLY 25 A N GLY 23 A N CYS 24 A N CYS 22 A O SER 51 A O SER 49 1 A ARG 21 0.313 SIDE CHAIN 2 A ARG 21 0.316 SIDE CHAIN 3 A ARG 21 0.243 SIDE CHAIN 4 A ARG 21 0.239 SIDE CHAIN 5 A ARG 21 0.172 SIDE CHAIN 6 A ARG 21 0.305 SIDE CHAIN 8 A ARG 21 0.246 SIDE CHAIN 9 A ARG 21 0.258 SIDE CHAIN 10 A ARG 21 0.270 SIDE CHAIN 11 A ARG 21 0.308 SIDE CHAIN 12 A ARG 21 0.220 SIDE CHAIN 13 A ARG 21 0.183 SIDE CHAIN 14 A ARG 21 0.207 SIDE CHAIN 15 A ARG 21 0.247 SIDE CHAIN 1 A SER 9 -46.64 87.60 1 A GLU 10 72.19 65.37 1 A CYS 14 -94.90 37.04 1 A THR 17 -161.39 71.99 1 A MET 18 -160.43 -68.72 1 A SER 26 -56.40 -6.26 1 A ASN 28 80.06 20.90 1 A ASN 33 170.92 167.81 1 A THR 49 -150.83 -155.34 1 A SER 51 -138.23 -48.73 1 A HIS 52 178.35 107.65 1 A PHE 53 -38.94 119.55 2 A SER 5 155.53 38.95 2 A ASP 7 -101.43 72.88 2 A GLU 10 -146.96 27.75 2 A LYS 13 -161.13 93.14 2 A ALA 15 -101.23 48.31 2 A THR 17 -96.28 -91.58 2 A MET 18 -150.87 51.79 2 A ARG 21 -163.68 85.51 2 A ASN 33 177.42 168.24 2 A THR 49 -147.14 -159.82 2 A SER 51 -150.46 -33.42 2 A HIS 52 -163.48 97.47 3 A SER 5 70.90 79.25 3 A CYS 8 -142.32 48.31 3 A GLU 10 -161.56 32.62 3 A LYS 13 -167.55 95.84 3 A ALA 15 -117.58 63.18 3 A THR 17 -160.67 28.53 3 A MET 18 -89.41 -79.90 3 A SER 26 -55.87 -7.56 3 A ASN 33 173.66 168.14 3 A THR 49 -150.20 -155.64 3 A SER 51 -146.35 -35.93 3 A HIS 52 166.82 110.59 4 A GLU 10 -162.81 26.91 4 A LYS 13 -166.24 95.73 4 A CYS 14 -90.75 33.48 4 A THR 17 -161.04 28.23 4 A MET 18 -82.51 -71.47 4 A SER 51 -142.82 -30.12 4 A HIS 52 -153.34 89.85 4 A PHE 53 -45.19 95.41 5 A SER 9 -61.65 87.03 5 A LYS 13 -165.46 93.89 5 A THR 17 -79.78 -132.80 5 A GLU 19 -46.57 154.10 5 A SER 26 -49.91 -18.68 5 A THR 49 -140.85 -157.08 5 A HIS 52 177.02 104.74 6 A SER 9 -48.94 89.44 6 A GLU 10 63.37 62.80 6 A LYS 13 -170.23 96.06 6 A THR 17 -78.96 -103.76 6 A MET 18 -160.47 53.34 6 A HIS 52 176.43 112.28 6 A LYS 55 -48.33 151.73 7 A SER 9 -78.01 34.07 7 A GLU 10 -177.21 33.30 7 A LYS 13 -160.29 93.33 7 A CYS 14 -93.05 30.93 7 A THR 17 -161.49 68.27 7 A MET 18 -113.95 -89.75 7 A SER 26 -49.87 -18.77 7 A THR 49 -138.77 -158.94 7 A HIS 52 177.55 106.56 7 A PHE 53 -43.51 105.45 8 A SER 9 -48.27 89.47 8 A GLU 10 64.79 65.13 8 A LYS 13 -170.16 98.12 8 A ALA 15 -145.95 55.53 8 A THR 17 -160.26 26.20 8 A ARG 21 -164.79 87.84 8 A THR 49 -125.54 -165.55 8 A HIS 52 178.47 105.47 8 A PHE 53 -43.35 102.32 9 A ASP 7 -168.12 83.79 9 A SER 9 -53.00 88.12 9 A GLU 10 77.20 59.92 9 A LYS 13 -165.24 93.38 9 A ALA 15 -150.20 78.05 9 A THR 17 -78.70 -91.62 9 A MET 18 -156.40 31.57 9 A GLU 19 -47.96 156.30 9 A ASN 28 71.69 35.76 9 A LEU 50 -37.51 135.65 9 A HIS 52 -178.68 124.60 9 A PHE 53 -30.50 151.62 9 A LYS 55 -29.80 87.16 10 A SER 9 -48.08 92.16 10 A LYS 13 -170.83 102.33 10 A CYS 14 -85.78 30.82 10 A THR 17 -79.09 -125.65 10 A HIS 52 -179.51 104.91 10 A PHE 53 -47.67 89.96 11 A SER 5 60.56 122.34 11 A ASP 7 -69.53 95.67 11 A CYS 8 -154.38 24.80 11 A SER 9 -40.52 85.85 11 A GLU 10 61.14 69.79 11 A LYS 13 -171.76 101.93 11 A CYS 14 -95.66 32.89 11 A THR 17 -161.07 26.11 11 A MET 18 -101.30 -76.43 11 A GLU 19 -48.60 172.33 11 A TYR 20 -143.77 50.93 11 A THR 47 -77.78 -73.97 11 A THR 49 -150.10 -158.00 11 A SER 51 -145.73 -22.92 11 A HIS 52 177.18 104.52 11 A PHE 53 -53.38 105.74 12 A VAL 4 59.85 155.48 12 A SER 9 -79.54 36.10 12 A GLU 10 -155.38 20.27 12 A LYS 13 -118.04 -145.43 12 A CYS 14 172.55 71.13 12 A ALA 15 -150.64 66.82 12 A THR 17 -163.01 26.20 12 A MET 18 -94.11 -76.16 12 A SER 26 -49.79 -19.86 12 A THR 49 -141.26 -158.43 12 A HIS 52 165.53 117.83 12 A PHE 53 -39.56 135.86 13 A VAL 4 67.50 140.17 13 A SER 5 -55.60 104.19 13 A ASP 7 -107.87 67.54 13 A SER 9 -46.71 88.91 13 A GLU 10 64.28 69.56 13 A LYS 13 -168.86 96.55 13 A THR 17 -79.73 -111.34 13 A MET 18 -143.70 42.92 13 A ASN 33 176.55 149.88 13 A SER 51 -141.32 -35.62 13 A HIS 52 168.88 113.46 14 A VAL 4 -167.89 96.85 14 A SER 9 -60.31 87.82 14 A GLU 10 -173.43 -32.89 14 A PRO 12 -80.43 36.55 14 A LYS 13 -167.91 107.44 14 A THR 17 -160.77 61.00 14 A MET 18 -135.76 -73.35 14 A ARG 21 -154.51 81.30 14 A HIS 52 177.18 109.76 14 A PHE 53 -45.59 100.46 15 A SER 5 -145.68 -157.22 15 A CYS 8 -145.68 48.80 15 A SER 9 -45.54 85.17 15 A GLU 10 33.15 36.23 15 A LYS 13 -170.12 97.92 15 A ALA 15 -150.54 72.64 15 A THR 17 -91.99 -119.72 15 A THR 49 -130.90 -154.02 15 A SER 51 -149.12 -32.84 15 A PHE 53 -43.46 96.38 Solution structure of OMSVP3 variant, P14C/N39C 1 N N A ASN 33 A ASN 31 HELX_P A ASN 45 A ASN 43 1 1 13 disulf 2.021 A CYS 8 A SG CYS 6 1_555 A CYS 38 A SG CYS 36 1_555 disulf 2.019 A CYS 14 A SG CYS 12 1_555 A CYS 39 A SG CYS 37 1_555 disulf 2.021 A CYS 16 A SG CYS 14 1_555 A CYS 35 A SG CYS 33 1_555 disulf 2.020 A CYS 24 A SG CYS 22 1_555 A CYS 56 A SG CYS 54 1_555 HYDROLASE solution structure, CSH motif, OMSVP3, ovomucoid third domain, protease inhibitor, disulfide bond, Hydrolase IOVO_LOPNY UNP 1 3 P67954 AVSVDCSEYPKPACTMEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC 3 56 1IY6 3 56 P67954 A 1 1 54 1 PRO engineered mutation CYS 14 1IY6 A P67954 UNP 14 12 1 ASN engineered mutation CYS 39 1IY6 A P67954 UNP 39 37 3 anti-parallel anti-parallel A LYS 29 A LYS 27 A TYR 31 A TYR 29 A LEU 23 A LEU 21 A GLY 25 A GLY 23 A LEU 50 A LEU 48 A PHE 53 A PHE 51