0.038403 0.000000 0.007353 0.000000 0.028986 0.000000 0.000000 0.000000 0.028322 0.00000 0.00000 0.00000 Whitlow, M. Achari, A. Howard, A.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 2 90.00 100.84 90.00 26.040 34.500 35.950 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 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 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 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 S C N 76 N C N 77 N O N 78 N C N 79 N C N 80 N C N 81 N O N 82 N N N 83 N O N 84 N H N 85 N H N 86 N H N 87 N H N 88 N H N 89 N H N 90 N H N 91 N H N 92 N H N 93 N H N 94 N N N 95 S C N 96 N C N 97 N O N 98 N C N 99 N C N 100 N C N 101 N O N 102 N O N 103 N O N 104 N H N 105 N H N 106 N H N 107 N H N 108 N H N 109 N H N 110 N H N 111 N H N 112 N H N 113 N N N 114 N C N 115 N C N 116 N O N 117 N O N 118 N H N 119 N H N 120 N H N 121 N H N 122 N H N 123 N O N 124 N H N 125 N H N 126 N N N 127 S C N 128 N C N 129 N O N 130 S C N 131 N C N 132 N C N 133 N C N 134 N O N 135 N H N 136 N H N 137 N H N 138 N H N 139 N H N 140 N H N 141 N H N 142 N H N 143 N H N 144 N H N 145 N H N 146 N H N 147 N H N 148 N N N 149 S C N 150 N C N 151 N O N 152 N C N 153 N C N 154 N C N 155 N C N 156 N O N 157 N H N 158 N H N 159 N H N 160 N H N 161 N H N 162 N H N 163 N H N 164 N H N 165 N H N 166 N H N 167 N H N 168 N H N 169 N H N 170 N N N 171 S C N 172 N C N 173 N O N 174 N C N 175 N C N 176 N C N 177 N C N 178 N N N 179 N O N 180 N H N 181 N H N 182 N H N 183 N H N 184 N H N 185 N H N 186 N H N 187 N H N 188 N H N 189 N H N 190 N H N 191 N H N 192 N H N 193 N H N 194 N H N 195 N N N 196 S C N 197 N C N 198 N O N 199 N C N 200 N C N 201 N S N 202 N C N 203 N O N 204 N H N 205 N H N 206 N H N 207 N H N 208 N H N 209 N H N 210 N H N 211 N H N 212 N H N 213 N H N 214 N H N 215 N N N 216 S C N 217 N C N 218 N O N 219 N C Y 220 N C Y 221 N C Y 222 N C Y 223 N C Y 224 N C Y 225 N C N 226 N O N 227 N H N 228 N H N 229 N H N 230 N H N 231 N H N 232 N H N 233 N H N 234 N H N 235 N H N 236 N H N 237 N H N 238 N N N 239 S C N 240 N C N 241 N O N 242 N C N 243 N C N 244 N C N 245 N O N 246 N H N 247 N H N 248 N H N 249 N H N 250 N H N 251 N H N 252 N H N 253 N H N 254 N H N 255 N N N 256 S C N 257 N C N 258 N O N 259 N C N 260 N O N 261 N O N 262 N H N 263 N H N 264 N H N 265 N H N 266 N H N 267 N H N 268 N H N 269 N N N 270 S C N 271 N C N 272 N O N 273 R C N 274 N O N 275 N C N 276 N O N 277 N H N 278 N H N 279 N H N 280 N H N 281 N H N 282 N H N 283 N H N 284 N H N 285 N H N 286 N N N 287 S C N 288 N C N 289 N O N 290 N C Y 291 N C Y 292 N C Y 293 N C Y 294 N N Y 295 N C Y 296 N C Y 297 N C Y 298 N C Y 299 N C N 300 N O N 301 N H N 302 N H N 303 N H N 304 N H N 305 N H N 306 N H N 307 N H N 308 N H N 309 N H N 310 N H N 311 N H N 312 N H N 313 N N N 314 S C N 315 N C N 316 N O N 317 N C Y 318 N C Y 319 N C Y 320 N C Y 321 N C Y 322 N C Y 323 N C N 324 N O N 325 N O N 326 N H N 327 N H N 328 N H N 329 N H N 330 N H N 331 N H N 332 N H N 333 N H N 334 N H N 335 N H N 336 N H N 337 N N N 338 S C N 339 N C N 340 N O N 341 N C N 342 N C N 343 N C N 344 N O N 345 N H N 346 N H N 347 N H N 348 N H N 349 N H N 350 N H N 351 N H N 352 N H N 353 N H N 354 N H N 355 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 doub N 85 N sing N 86 N sing N 87 N sing N 88 N sing N 89 N sing N 90 N sing N 91 N sing N 92 N sing N 93 N sing N 94 N sing N 95 N doub N 96 N sing N 97 N sing N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N sing N 103 N doub N 104 N sing N 105 N sing N 106 N sing N 107 N sing N 108 N sing N 109 N sing N 110 N sing N 111 N sing N 112 N sing N 113 N doub N 114 N sing N 115 N sing N 116 N sing N 117 N sing N 118 N sing N 119 N sing N 120 N sing N 121 N sing N 122 N sing N 123 N sing N 124 N doub N 125 N sing N 126 N sing N 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 sing 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 doub 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 sing 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 doub 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 sing 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 doub 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 sing N 202 N sing N 203 N sing N 204 N sing N 205 N sing N 206 N sing N 207 N sing N 208 N sing N 209 N doub N 210 N sing N 211 N sing N 212 N sing N 213 N sing Y 214 N doub Y 215 N sing Y 216 N sing N 217 N sing Y 218 N doub N 219 N sing Y 220 N doub N 221 N sing Y 222 N sing N 223 N sing N 224 N sing 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 doub 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 sing 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 doub N 250 N sing N 251 N sing N 252 N sing N 253 N sing N 254 N sing 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 doub 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 sing N 271 N sing N 272 N sing N 273 N sing N 274 N sing N 275 N sing N 276 N sing N 277 N sing N 278 N doub N 279 N sing N 280 N sing N 281 N sing N 282 N sing Y 283 N doub Y 284 N sing Y 285 N sing N 286 N sing Y 287 N doub Y 288 N sing Y 289 N sing N 290 N sing Y 291 N sing Y 292 N doub N 293 N sing Y 294 N doub N 295 N sing Y 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 N 306 N doub N 307 N sing N 308 N sing N 309 N sing N 310 N sing Y 311 N doub Y 312 N sing Y 313 N sing N 314 N sing Y 315 N doub N 316 N sing Y 317 N doub N 318 N sing Y 319 N sing N 320 N sing N 321 N sing N 322 N sing N 323 N sing N 324 N sing N 325 N sing N 326 N sing N 327 N sing N 328 N sing N 329 N sing N 330 N doub N 331 N sing N 332 N sing N 333 N sing N 334 N sing N 335 N sing N 336 N sing N 337 N sing N 338 N sing N 339 N sing N 340 N sing N 341 N sing US Biochemistry BICHAW 0033 0006-2960 31 10449 10457 10.1021/bi00158a006 1420164 1.67-A X-ray structure of the B2 immunoglobulin-binding domain of streptococcal protein G and comparison to the NMR structure of the B1 domain. 1992 US Science SCIEAS 0038 0036-8075 253 657 A Novel, Highly Stable Fold of the Immunoglobulin Binding Domain of Streptococcal Protein G 1991 Academic Press, New York US Bacterial Immunoglobulin-Binding Proteins 0787 0-12-123011-2 1 133 Structure and Evolution of the Streptococcal Genes Encoding Protein G 1990 1 10.2210/pdb1pgx/pdb pdb_00001pgx 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 9015.955 PROTEIN G 1 man polymer 18.015 water 61 nat water no no MDPGDASELTPAVTTYKLVINGKTLKGETTTKAVDAETAEKAFKQYANDNGVDGVWTYDDATKTFTVTEMVTEVPVASKR KED MDPGDASELTPAVTTYKLVINGKTLKGETTTKAVDAETAEKAFKQYANDNGVDGVWTYDDATKTFTVTEMVTEVPVASKR KED 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 Streptococcus sample 1301 Streptococcus BACTERIAL 1.76 30.08 chem_comp_atom chem_comp_bond database_2 pdbx_database_status struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Data collection Database references Other 1 0 1992-07-15 1 1 2008-03-24 1 2 2011-07-13 1 3 2024-02-14 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site _struct_ref_seq_dif.details Y BNL 1992-04-03 REL HOH water HOH 101 2 HOH HOH 101 A HOH 102 2 HOH HOH 102 A HOH 103 2 HOH HOH 103 A HOH 104 2 HOH HOH 104 A HOH 105 2 HOH HOH 105 A HOH 106 2 HOH HOH 106 A HOH 107 2 HOH HOH 107 A HOH 108 2 HOH HOH 108 A HOH 109 2 HOH HOH 109 A HOH 110 2 HOH HOH 110 A HOH 111 2 HOH HOH 111 A HOH 112 2 HOH HOH 112 A HOH 113 2 HOH HOH 113 A HOH 114 2 HOH HOH 114 A HOH 115 2 HOH HOH 115 A HOH 116 2 HOH HOH 116 A HOH 117 2 HOH HOH 117 A HOH 118 2 HOH HOH 118 A HOH 119 2 HOH HOH 119 A HOH 120 2 HOH HOH 120 A HOH 121 2 HOH HOH 121 A HOH 122 2 HOH HOH 122 A HOH 123 2 HOH HOH 123 A HOH 124 2 HOH HOH 124 A HOH 125 2 HOH HOH 125 A HOH 126 2 HOH HOH 126 A HOH 127 2 HOH HOH 127 A HOH 128 2 HOH HOH 128 A HOH 129 2 HOH HOH 129 A HOH 130 2 HOH HOH 130 A HOH 131 2 HOH HOH 131 A HOH 132 2 HOH HOH 132 A HOH 133 2 HOH HOH 133 A HOH 134 2 HOH HOH 134 A HOH 135 2 HOH HOH 135 A HOH 136 2 HOH HOH 136 A HOH 137 2 HOH HOH 137 A HOH 138 2 HOH HOH 138 A HOH 139 2 HOH HOH 139 A HOH 140 2 HOH HOH 140 A HOH 141 2 HOH HOH 141 A HOH 142 2 HOH HOH 142 A HOH 143 2 HOH HOH 143 A HOH 144 2 HOH HOH 144 A HOH 145 2 HOH HOH 145 A HOH 146 2 HOH HOH 146 A HOH 147 2 HOH HOH 147 A HOH 148 2 HOH HOH 148 A HOH 149 2 HOH HOH 149 A HOH 150 2 HOH HOH 150 A HOH 151 2 HOH HOH 151 A HOH 152 2 HOH HOH 152 A HOH 153 2 HOH HOH 153 A HOH 154 2 HOH HOH 154 A HOH 155 2 HOH HOH 155 A HOH 156 2 HOH HOH 156 A HOH 157 2 HOH HOH 157 A HOH 158 2 HOH HOH 158 A HOH 159 2 HOH HOH 159 A HOH 160 2 HOH HOH 160 A HOH 161 2 HOH HOH 161 A n 1 1 A n 2 2 A n 3 3 A n 4 4 A n 5 5 A n 6 6 A n 7 7 A GLU 8 n 8 GLU 8 A LEU 9 n 9 LEU 9 A THR 10 n 10 THR 10 A PRO 11 n 11 PRO 11 A ALA 12 n 12 ALA 12 A VAL 13 n 13 VAL 13 A THR 14 n 14 THR 14 A THR 15 n 15 THR 15 A TYR 16 n 16 TYR 16 A LYS 17 n 17 LYS 17 A LEU 18 n 18 LEU 18 A VAL 19 n 19 VAL 19 A ILE 20 n 20 ILE 20 A ASN 21 n 21 ASN 21 A GLY 22 n 22 GLY 22 A LYS 23 n 23 LYS 23 A THR 24 n 24 THR 24 A LEU 25 n 25 LEU 25 A LYS 26 n 26 LYS 26 A GLY 27 n 27 GLY 27 A GLU 28 n 28 GLU 28 A THR 29 n 29 THR 29 A THR 30 n 30 THR 30 A THR 31 n 31 THR 31 A LYS 32 n 32 LYS 32 A ALA 33 n 33 ALA 33 A VAL 34 n 34 VAL 34 A ASP 35 n 35 ASP 35 A ALA 36 n 36 ALA 36 A GLU 37 n 37 GLU 37 A THR 38 n 38 THR 38 A ALA 39 n 39 ALA 39 A GLU 40 n 40 GLU 40 A LYS 41 n 41 LYS 41 A ALA 42 n 42 ALA 42 A PHE 43 n 43 PHE 43 A LYS 44 n 44 LYS 44 A GLN 45 n 45 GLN 45 A TYR 46 n 46 TYR 46 A ALA 47 n 47 ALA 47 A ASN 48 n 48 ASN 48 A ASP 49 n 49 ASP 49 A ASN 50 n 50 ASN 50 A GLY 51 n 51 GLY 51 A VAL 52 n 52 VAL 52 A ASP 53 n 53 ASP 53 A GLY 54 n 54 GLY 54 A VAL 55 n 55 VAL 55 A TRP 56 n 56 TRP 56 A THR 57 n 57 THR 57 A TYR 58 n 58 TYR 58 A ASP 59 n 59 ASP 59 A ASP 60 n 60 ASP 60 A ALA 61 n 61 ALA 61 A THR 62 n 62 THR 62 A LYS 63 n 63 LYS 63 A THR 64 n 64 THR 64 A PHE 65 n 65 PHE 65 A THR 66 n 66 THR 66 A VAL 67 n 67 VAL 67 A THR 68 n 68 THR 68 A GLU 69 n 69 GLU 69 A MET 70 n 70 MET 70 A VAL 71 n 71 VAL 71 A THR 72 n 72 THR 72 A GLU 73 n 73 GLU 73 A VAL 74 n 74 VAL 74 A PRO 75 n 75 PRO 75 A VAL 76 n 76 VAL 76 A ALA 77 n 77 ALA 77 A n 78 78 A n 79 79 A n 80 80 A n 81 81 A n 82 82 A n 83 83 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 1 A CE LYS 26 A CE LYS 26 1 Y 1 A NZ LYS 26 A NZ LYS 26 1 Y 1 A NZ LYS 32 A NZ LYS 32 1 Y 1 A NZ LYS 41 A NZ LYS 41 1 Y 1 A MET 1 A MET 1 1 Y 1 A ASP 2 A ASP 2 1 Y 1 A PRO 3 A PRO 3 1 Y 1 A GLY 4 A GLY 4 1 Y 1 A ASP 5 A ASP 5 1 Y 1 A ALA 6 A ALA 6 1 Y 1 A SER 7 A SER 7 1 Y 1 A SER 78 A SER 78 1 Y 1 A LYS 79 A LYS 79 1 Y 1 A ARG 80 A ARG 80 1 Y 1 A LYS 81 A LYS 81 1 Y 1 A GLU 82 A GLU 82 1 Y 1 A ASP 83 A ASP 83 1 Y 1 9.98 1.60 122.70 132.68 A A A O C N VAL VAL ILE 19 19 20 Y 1 10.50 1.60 122.70 133.20 A A A O C N THR THR LEU 24 24 25 Y 1 -5.11 0.70 120.80 115.69 A A A CB CG CD2 PHE PHE PHE 43 43 43 N 1 5.78 0.90 118.30 124.08 A A A CB CG OD1 ASP ASP ASP 49 49 49 N 1 10.62 1.60 122.70 133.32 A A A O C N VAL VAL TRP 55 55 56 Y 1 A ASN 21 -114.78 77.49 0.1910000 1.66 8.0 6365 1 1.66 8.0 63 599 0 0 536 0.021 0.030 0.028 0.040 0.032 0.050 0.018 0.030 0.210 0.300 0.164 0.200 0.141 0.200 0.133 0.200 3.2 6.0 13.5 10.0 22.2 10.0 refinement PROFFT THE 1.66 ANGSTROMS X-RAY STRUCTURE OF THE B2 IMMUNOGLOBULIN-BINDING DOMAIN OF STREPTOCOCCAL PROTEIN G AND COMPARISON TO THE NMR STRUCTURE OF THE B1 DOMAIN 1 N N 2 N N A ASP 35 A ASP 35 HELX_P A ASP 49 A ASP 49 1 H1 15 IMMUNOGLOBULIN BINDING PROTEIN IMMUNOGLOBULIN BINDING PROTEIN SPG1_STRSG UNP 1 1 P06654 MEKEKKVKYFLRKSAFGLASVSAAFLVGSTVFAVDSPIEDTPIIRNGGELTNLLGNSETTLALRNEESATADLTAAAVAD TVAAAAAENAGAAAWEAAAAADALAKAKADALKEFNKYGVSDYYKNLINNAKTVEGIKDLQAQVVESAKKARISEATDGL SDFLKSQTPAEDTVKSIELAEAKVLANRELDKYGVSDYHKNLINNAKTVEGVKELIDEILAALPKTDTYKLILNGKTLKG ETTTEAVDAATAEKVFKQYANDNGVDGEWTYDDATKTFTVTEKPEVIDASELTPAVTTYKLVINGKTLKGETTTKAVDAE TAEKAFKQYANDNGVDGVWTYDDATKTFTVTEMVTEVPGDAPTEPEKPEASIPLVPLTPATPIAKDDAKKDDTKKEDAKK PEAKKDDAKKAETLPTTGEGSNPFFTAAALAVMAGAGALAVASKRKED 284 366 1PGX 3 82 P06654 A 1 3 82 1 GLU deletion 1PGX A P06654 UNP 285 1 VAL deletion 1PGX A P06654 UNP 286 1 ILE conflict GLY 4 1PGX A P06654 UNP 287 4 1 GLY deletion 1PGX A P06654 UNP 359 1 ASP conflict VAL 76 1PGX A P06654 UNP 360 76 1 PRO conflict SER 78 1PGX A P06654 UNP 362 78 1 THR conflict LYS 79 1PGX A P06654 UNP 363 79 1 GLU conflict ARG 80 1PGX A P06654 UNP 364 80 1 PRO conflict LYS 81 1PGX A P06654 UNP 365 81 4 anti-parallel anti-parallel anti-parallel A THR 14 A THR 14 A GLY 22 A GLY 22 A LEU 25 A LEU 25 A ALA 33 A ALA 33 A ASP 53 A ASP 53 A ASP 59 A ASP 59 A LYS 63 A LYS 63 A MET 70 A MET 70 4 P 1 21 1