0.023392 -0.000001 0.006123 0.000000 0.023993 -0.000001 0.000000 0.000000 0.014169 0.00000 0.00000 0.00000 Fisher, Z. Hernandez Prada, J.A. Tu, C. Duda, D. Yoshioka, C. An, H. Govindasamy, L. Silverman, D.N. McKenna, R. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 2 90.00 104.67 90.00 42.750 41.678 72.956 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 Cl -1 35.453 CHLORIDE 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 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 Zn 2 65.409 ZINC ION non-polymer 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 CL N 75 N N N 76 R C N 77 N C N 78 N O N 79 N C N 80 N S N 81 N O 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 H N 89 N N N 90 S C N 91 N C N 92 N O N 93 N C N 94 N C N 95 N C N 96 N O N 97 N N N 98 N O 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 H N 108 N H N 109 N N N 110 S C N 111 N C N 112 N O N 113 N C N 114 N C N 115 N C N 116 N O N 117 N O N 118 N O N 119 N H N 120 N H N 121 N H N 122 N H N 123 N H N 124 N H N 125 N H N 126 N H N 127 N H N 128 N N N 129 N C N 130 N C N 131 N O N 132 N O 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 Y 143 N C Y 144 N N Y 145 N C Y 146 N C Y 147 N N N 148 N O 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 O N 160 N H N 161 N H N 162 N N N 163 S C N 164 N C N 165 N O N 166 S C N 167 N C N 168 N C N 169 N C N 170 N O 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 N N 185 S C N 186 N C N 187 N O N 188 N C N 189 N C N 190 N C N 191 N C N 192 N O N 193 N H 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 H N 206 N N N 207 S C N 208 N C N 209 N O N 210 N C N 211 N C N 212 N C N 213 N C N 214 N N N 215 N O N 216 N H 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 H N 229 N H N 230 N H N 231 N N N 232 S C N 233 N C N 234 N O N 235 N C N 236 N C N 237 N S N 238 N C N 239 N O N 240 N H N 241 N H N 242 N H N 243 N H N 244 N H N 245 N H N 246 N H N 247 N H N 248 N H N 249 N H N 250 N H N 251 N N N 252 S C N 253 N C N 254 N O N 255 N C Y 256 N C Y 257 N C Y 258 N C Y 259 N C Y 260 N C Y 261 N C N 262 N O 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 H N 270 N H N 271 N H N 272 N H N 273 N H N 274 N N N 275 S C N 276 N C N 277 N O N 278 N C N 279 N C N 280 N C N 281 N O N 282 N H N 283 N H N 284 N H N 285 N H N 286 N H N 287 N H N 288 N H N 289 N H N 290 N H N 291 N N N 292 S C N 293 N C N 294 N O N 295 N C N 296 N O N 297 N O N 298 N H N 299 N H N 300 N H N 301 N H N 302 N H N 303 N H N 304 N H N 305 N N N 306 S C N 307 N C N 308 N O N 309 R C N 310 N O N 311 N C N 312 N O 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 319 N H N 320 N H N 321 N H N 322 N N N 323 S C N 324 N C N 325 N O N 326 N C Y 327 N C Y 328 N C Y 329 N C Y 330 N N Y 331 N C Y 332 N C Y 333 N C Y 334 N C Y 335 N C N 336 N O N 337 N H N 338 N H N 339 N H N 340 N H N 341 N H N 342 N H N 343 N H N 344 N H N 345 N H N 346 N H N 347 N H N 348 N H N 349 N N N 350 S C N 351 N C N 352 N O N 353 N C Y 354 N C Y 355 N C Y 356 N C Y 357 N C Y 358 N C Y 359 N C N 360 N O N 361 N O N 362 N H N 363 N H N 364 N H N 365 N H N 366 N H N 367 N H N 368 N H N 369 N H N 370 N H N 371 N H N 372 N H N 373 N N N 374 S C N 375 N C N 376 N O N 377 N C N 378 N C N 379 N C N 380 N O N 381 N H N 382 N H N 383 N H N 384 N H N 385 N H N 386 N H N 387 N H N 388 N H N 389 N H N 390 N H N 391 N H N 392 N ZN 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 sing N 108 N doub 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 N 121 N sing N 122 N sing N 123 N sing N 124 N sing N 125 N sing N 126 N doub 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 doub N 136 N sing N 137 N sing N 138 N sing N 139 N sing Y 140 N sing Y 141 N doub Y 142 N doub N 143 N sing Y 144 N sing N 145 N sing Y 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 doub 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 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 doub 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 sing N 210 N sing N 211 N sing N 212 N sing N 213 N sing N 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 sing N 242 N sing N 243 N doub N 244 N sing N 245 N sing N 246 N sing N 247 N sing Y 248 N doub Y 249 N sing Y 250 N sing N 251 N sing Y 252 N doub N 253 N sing Y 254 N doub N 255 N sing Y 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 doub 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 sing N 279 N sing N 280 N sing N 281 N sing N 282 N sing N 283 N doub 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 sing N 295 N sing N 296 N doub 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 sing N 307 N sing N 308 N sing N 309 N sing N 310 N sing N 311 N sing N 312 N doub N 313 N sing N 314 N sing N 315 N sing N 316 N sing Y 317 N doub Y 318 N sing Y 319 N sing N 320 N sing Y 321 N doub Y 322 N sing Y 323 N sing N 324 N sing Y 325 N sing Y 326 N doub N 327 N sing Y 328 N doub N 329 N sing Y 330 N sing 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 doub N 341 N sing N 342 N sing N 343 N sing N 344 N sing Y 345 N doub Y 346 N sing Y 347 N sing N 348 N sing Y 349 N doub N 350 N sing Y 351 N doub N 352 N sing Y 353 N sing N 354 N sing N 355 N sing N 356 N sing N 357 N sing N 358 N sing N 359 N sing N 360 N sing N 361 N sing N 362 N sing N 363 N sing N 364 N doub N 365 N sing N 366 N sing N 367 N sing N 368 N sing N 369 N sing N 370 N sing N 371 N sing N 372 N sing N 373 N sing N 374 N sing N 375 N sing US Biochemistry BICHAW 0033 0006-2960 44 1097 1105 10.1021/bi0480279 15667203 Structural and kinetic characterization of active-site histidine as a proton shuttle in catalysis by human carbonic anhydrase II. 2005 10.2210/pdb1tb0/pdb pdb_00001tb0 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 293 1 Osmic Mirror IMAGE PLATE RIGAKU RAXIS IV SINGLE WAVELENGTH M x-ray 1 1.54 1.0 1.54 ROTATING ANODE RIGAKU RU200 29289.062 Carbonic anhydrase II 4.2.1.1 1 man polymer 65.409 ZINC ION 1 syn non-polymer 35.453 CHLORIDE ION 1 syn non-polymer 18.015 water 91 nat water Carbonate dehydratase II, CA-II, Carbonic anhydrase C no no MSHHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLK GGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVV DVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELM VDNWRPAQPLKNRQIKASFK MSHHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLK GGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVV DVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELM VDNWRPAQPLKNRQIKASFK X 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 human Homo Escherichia Escherichia coli sample CA2 9606 Homo sapiens 469008 Escherichia coli BL21(DE3) BL21 DE3 plasmid pET31 1 2.15 42.70 VAPOR DIFFUSION, HANGING DROP 6.1 50 mM MES, 2.5 M ammonium sulfate, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 277K 277 pdbx_unobs_or_zero_occ_residues software chem_comp_atom chem_comp_bond database_2 pdbx_initial_refinement_model pdbx_struct_conn_angle pdbx_unobs_or_zero_occ_residues struct_conn struct_ref_seq_dif struct_site repository Initial release Version format compliance Version format compliance Advisory Refinement description Advisory Data collection Database references Derived calculations Refinement description 1 0 2005-01-25 1 1 2008-04-30 1 2 2011-07-13 1 3 2017-10-11 1 4 2023-08-23 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_struct_conn_angle.ptnr1_auth_seq_id _pdbx_struct_conn_angle.ptnr1_label_atom_id _pdbx_struct_conn_angle.ptnr1_label_seq_id _pdbx_struct_conn_angle.ptnr3_auth_seq_id _pdbx_struct_conn_angle.ptnr3_label_atom_id _pdbx_struct_conn_angle.ptnr3_label_seq_id _pdbx_struct_conn_angle.value _struct_conn.pdbx_dist_value _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_asym_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn.ptnr2_label_seq_id _struct_ref_seq_dif.details _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id RCSB Y RCSB 2004-05-19 REL REL ZN ZINC ION CL CHLORIDE ION HOH water 2CBA pdb ENTRY 2CBA PDB experimental model ZN 262 2 ZN ZN 262 X CL 264 3 CL CL 264 X HOH 263 4 HOH HOH 265 X HOH 1 4 HOH HOH 266 X HOH 2 4 HOH HOH 267 X HOH 3 4 HOH HOH 268 X HOH 4 4 HOH HOH 269 X HOH 5 4 HOH HOH 270 X HOH 6 4 HOH HOH 271 X HOH 7 4 HOH HOH 272 X HOH 8 4 HOH HOH 273 X HOH 9 4 HOH HOH 274 X HOH 10 4 HOH HOH 275 X HOH 11 4 HOH HOH 276 X HOH 12 4 HOH HOH 277 X HOH 13 4 HOH HOH 278 X HOH 14 4 HOH HOH 279 X HOH 15 4 HOH HOH 280 X HOH 16 4 HOH HOH 281 X HOH 17 4 HOH HOH 282 X HOH 18 4 HOH HOH 283 X HOH 19 4 HOH HOH 284 X HOH 20 4 HOH HOH 285 X HOH 21 4 HOH HOH 286 X HOH 22 4 HOH HOH 287 X HOH 23 4 HOH HOH 288 X HOH 24 4 HOH HOH 289 X HOH 25 4 HOH HOH 290 X HOH 26 4 HOH HOH 291 X HOH 27 4 HOH HOH 292 X HOH 28 4 HOH HOH 293 X HOH 29 4 HOH HOH 294 X HOH 30 4 HOH HOH 295 X HOH 31 4 HOH HOH 296 X HOH 32 4 HOH HOH 297 X HOH 33 4 HOH HOH 298 X HOH 34 4 HOH HOH 299 X HOH 35 4 HOH HOH 300 X HOH 36 4 HOH HOH 301 X HOH 37 4 HOH HOH 302 X HOH 38 4 HOH HOH 303 X HOH 39 4 HOH HOH 304 X HOH 40 4 HOH HOH 305 X HOH 41 4 HOH HOH 306 X HOH 42 4 HOH HOH 307 X HOH 43 4 HOH HOH 308 X HOH 44 4 HOH HOH 309 X HOH 45 4 HOH HOH 310 X HOH 46 4 HOH HOH 311 X HOH 47 4 HOH HOH 312 X HOH 48 4 HOH HOH 313 X HOH 50 4 HOH HOH 314 X HOH 51 4 HOH HOH 315 X HOH 52 4 HOH HOH 316 X HOH 54 4 HOH HOH 317 X HOH 55 4 HOH HOH 318 X HOH 56 4 HOH HOH 319 X HOH 57 4 HOH HOH 320 X HOH 58 4 HOH HOH 321 X HOH 59 4 HOH HOH 322 X HOH 60 4 HOH HOH 323 X HOH 61 4 HOH HOH 324 X HOH 62 4 HOH HOH 325 X HOH 63 4 HOH HOH 326 X HOH 64 4 HOH HOH 327 X HOH 65 4 HOH HOH 328 X HOH 66 4 HOH HOH 329 X HOH 67 4 HOH HOH 330 X HOH 69 4 HOH HOH 331 X HOH 70 4 HOH HOH 332 X HOH 71 4 HOH HOH 333 X HOH 72 4 HOH HOH 334 X HOH 73 4 HOH HOH 335 X HOH 74 4 HOH HOH 336 X HOH 75 4 HOH HOH 337 X HOH 76 4 HOH HOH 338 X HOH 78 4 HOH HOH 339 X HOH 79 4 HOH HOH 340 X HOH 80 4 HOH HOH 341 X HOH 81 4 HOH HOH 342 X HOH 82 4 HOH HOH 343 X HOH 83 4 HOH HOH 344 X HOH 84 4 HOH HOH 345 X HOH 86 4 HOH HOH 346 X HOH 87 4 HOH HOH 347 X HOH 88 4 HOH HOH 348 X HOH 89 4 HOH HOH 349 X HOH 90 4 HOH HOH 350 X HOH 91 4 HOH HOH 351 X HOH 92 4 HOH HOH 352 X HOH 93 4 HOH HOH 353 X HOH 94 4 HOH HOH 354 X HOH 95 4 HOH HOH 355 X n 1 1 X n 2 2 X HIS 3 n 3 HIS 3 X HIS 4 n 4 HIS 4 X TRP 5 n 5 TRP 5 X GLY 6 n 6 GLY 6 X TYR 7 n 7 TYR 7 X GLY 8 n 8 GLY 8 X LYS 9 n 9 LYS 9 X HIS 10 n 10 HIS 10 X ASN 11 n 11 ASN 11 X GLY 12 n 12 GLY 12 X PRO 13 n 13 PRO 13 X GLU 14 n 14 GLU 14 X HIS 15 n 15 HIS 15 X TRP 16 n 16 TRP 16 X HIS 17 n 17 HIS 17 X LYS 18 n 18 LYS 18 X ASP 19 n 19 ASP 19 X PHE 20 n 20 PHE 20 X PRO 21 n 21 PRO 21 X ILE 22 n 22 ILE 22 X ALA 23 n 23 ALA 23 X LYS 24 n 24 LYS 24 X GLY 25 n 25 GLY 25 X GLU 26 n 26 GLU 26 X ARG 27 n 27 ARG 27 X GLN 28 n 28 GLN 28 X SER 29 n 29 SER 29 X PRO 30 n 30 PRO 30 X VAL 31 n 31 VAL 31 X ASP 32 n 32 ASP 32 X ILE 33 n 33 ILE 33 X ASP 34 n 34 ASP 34 X THR 35 n 35 THR 35 X HIS 36 n 36 HIS 36 X THR 37 n 37 THR 37 X ALA 38 n 38 ALA 38 X LYS 39 n 39 LYS 39 X TYR 40 n 40 TYR 40 X ASP 41 n 41 ASP 41 X PRO 42 n 42 PRO 42 X SER 43 n 43 SER 43 X LEU 44 n 44 LEU 44 X LYS 45 n 45 LYS 45 X PRO 46 n 46 PRO 46 X LEU 47 n 47 LEU 47 X SER 48 n 48 SER 48 X VAL 49 n 49 VAL 49 X SER 50 n 50 SER 50 X TYR 51 n 51 TYR 51 X ASP 52 n 52 ASP 52 X GLN 53 n 53 GLN 53 X ALA 54 n 54 ALA 54 X THR 55 n 55 THR 55 X SER 56 n 56 SER 56 X LEU 57 n 57 LEU 57 X ARG 58 n 58 ARG 58 X ILE 59 n 59 ILE 59 X LEU 60 n 60 LEU 60 X ASN 61 n 61 ASN 61 X ASN 62 n 62 ASN 62 X GLY 63 n 63 GLY 63 X HIS 64 n 64 HIS 64 X ALA 65 n 65 ALA 65 X PHE 66 n 66 PHE 66 X ASN 67 n 67 ASN 67 X VAL 68 n 68 VAL 68 X GLU 69 n 69 GLU 69 X PHE 70 n 70 PHE 70 X ASP 71 n 71 ASP 71 X ASP 72 n 72 ASP 72 X SER 73 n 73 SER 73 X GLN 74 n 74 GLN 74 X ASP 75 n 75 ASP 75 X LYS 76 n 76 LYS 76 X ALA 77 n 77 ALA 77 X VAL 78 n 78 VAL 78 X LEU 79 n 79 LEU 79 X LYS 80 n 80 LYS 80 X GLY 81 n 81 GLY 81 X GLY 82 n 82 GLY 82 X PRO 83 n 83 PRO 83 X LEU 84 n 84 LEU 84 X ASP 85 n 85 ASP 85 X GLY 86 n 86 GLY 86 X THR 87 n 87 THR 87 X TYR 88 n 88 TYR 88 X ARG 89 n 89 ARG 89 X LEU 90 n 90 LEU 90 X ILE 91 n 91 ILE 91 X GLN 92 n 92 GLN 92 X PHE 93 n 93 PHE 93 X HIS 94 n 94 HIS 94 X PHE 95 n 95 PHE 95 X HIS 96 n 96 HIS 96 X TRP 97 n 97 TRP 97 X GLY 98 n 98 GLY 98 X SER 99 n 99 SER 99 X LEU 100 n 100 LEU 100 X ASP 101 n 101 ASP 101 X GLY 102 n 102 GLY 102 X GLN 103 n 103 GLN 103 X GLY 104 n 104 GLY 104 X SER 105 n 105 SER 105 X GLU 106 n 106 GLU 106 X HIS 107 n 107 HIS 107 X THR 108 n 108 THR 108 X VAL 109 n 109 VAL 109 X ASP 110 n 110 ASP 110 X LYS 111 n 111 LYS 111 X LYS 112 n 112 LYS 112 X LYS 113 n 113 LYS 113 X TYR 114 n 114 TYR 114 X ALA 115 n 115 ALA 115 X ALA 116 n 116 ALA 116 X GLU 117 n 117 GLU 117 X LEU 118 n 118 LEU 118 X HIS 119 n 119 HIS 119 X LEU 120 n 120 LEU 120 X VAL 121 n 121 VAL 121 X HIS 122 n 122 HIS 122 X TRP 123 n 123 TRP 123 X ASN 124 n 124 ASN 124 X THR 125 n 125 THR 125 X LYS 127 n 126 LYS 127 X TYR 128 n 127 TYR 128 X GLY 129 n 128 GLY 129 X ASP 130 n 129 ASP 130 X PHE 131 n 130 PHE 131 X GLY 132 n 131 GLY 132 X LYS 133 n 132 LYS 133 X ALA 134 n 133 ALA 134 X VAL 135 n 134 VAL 135 X GLN 136 n 135 GLN 136 X GLN 137 n 136 GLN 137 X PRO 138 n 137 PRO 138 X ASP 139 n 138 ASP 139 X GLY 140 n 139 GLY 140 X LEU 141 n 140 LEU 141 X ALA 142 n 141 ALA 142 X VAL 143 n 142 VAL 143 X LEU 144 n 143 LEU 144 X GLY 145 n 144 GLY 145 X ILE 146 n 145 ILE 146 X PHE 147 n 146 PHE 147 X LEU 148 n 147 LEU 148 X LYS 149 n 148 LYS 149 X VAL 150 n 149 VAL 150 X GLY 151 n 150 GLY 151 X SER 152 n 151 SER 152 X ALA 153 n 152 ALA 153 X LYS 154 n 153 LYS 154 X PRO 155 n 154 PRO 155 X GLY 156 n 155 GLY 156 X LEU 157 n 156 LEU 157 X GLN 158 n 157 GLN 158 X LYS 159 n 158 LYS 159 X VAL 160 n 159 VAL 160 X VAL 161 n 160 VAL 161 X ASP 162 n 161 ASP 162 X VAL 163 n 162 VAL 163 X LEU 164 n 163 LEU 164 X ASP 165 n 164 ASP 165 X SER 166 n 165 SER 166 X ILE 167 n 166 ILE 167 X LYS 168 n 167 LYS 168 X THR 169 n 168 THR 169 X LYS 170 n 169 LYS 170 X GLY 171 n 170 GLY 171 X LYS 172 n 171 LYS 172 X SER 173 n 172 SER 173 X ALA 174 n 173 ALA 174 X ASP 175 n 174 ASP 175 X PHE 176 n 175 PHE 176 X THR 177 n 176 THR 177 X ASN 178 n 177 ASN 178 X PHE 179 n 178 PHE 179 X ASP 180 n 179 ASP 180 X PRO 181 n 180 PRO 181 X ARG 182 n 181 ARG 182 X GLY 183 n 182 GLY 183 X LEU 184 n 183 LEU 184 X LEU 185 n 184 LEU 185 X PRO 186 n 185 PRO 186 X GLU 187 n 186 GLU 187 X SER 188 n 187 SER 188 X LEU 189 n 188 LEU 189 X ASP 190 n 189 ASP 190 X TYR 191 n 190 TYR 191 X TRP 192 n 191 TRP 192 X THR 193 n 192 THR 193 X TYR 194 n 193 TYR 194 X PRO 195 n 194 PRO 195 X GLY 196 n 195 GLY 196 X SER 197 n 196 SER 197 X LEU 198 n 197 LEU 198 X THR 199 n 198 THR 199 X THR 200 n 199 THR 200 X PRO 201 n 200 PRO 201 X PRO 202 n 201 PRO 202 X LEU 203 n 202 LEU 203 X LEU 204 n 203 LEU 204 X GLU 205 n 204 GLU 205 X CYS 206 n 205 CYS 206 X VAL 207 n 206 VAL 207 X THR 208 n 207 THR 208 X TRP 209 n 208 TRP 209 X ILE 210 n 209 ILE 210 X VAL 211 n 210 VAL 211 X LEU 212 n 211 LEU 212 X LYS 213 n 212 LYS 213 X GLU 214 n 213 GLU 214 X PRO 215 n 214 PRO 215 X ILE 216 n 215 ILE 216 X SER 217 n 216 SER 217 X VAL 218 n 217 VAL 218 X SER 219 n 218 SER 219 X SER 220 n 219 SER 220 X GLU 221 n 220 GLU 221 X GLN 222 n 221 GLN 222 X VAL 223 n 222 VAL 223 X LEU 224 n 223 LEU 224 X LYS 225 n 224 LYS 225 X PHE 226 n 225 PHE 226 X ARG 227 n 226 ARG 227 X LYS 228 n 227 LYS 228 X LEU 229 n 228 LEU 229 X ASN 230 n 229 ASN 230 X PHE 231 n 230 PHE 231 X ASN 232 n 231 ASN 232 X GLY 233 n 232 GLY 233 X GLU 234 n 233 GLU 234 X GLY 235 n 234 GLY 235 X GLU 236 n 235 GLU 236 X PRO 237 n 236 PRO 237 X GLU 238 n 237 GLU 238 X GLU 239 n 238 GLU 239 X LEU 240 n 239 LEU 240 X MET 241 n 240 MET 241 X VAL 242 n 241 VAL 242 X ASP 243 n 242 ASP 243 X ASN 244 n 243 ASN 244 X TRP 245 n 244 TRP 245 X ARG 246 n 245 ARG 246 X PRO 247 n 246 PRO 247 X ALA 248 n 247 ALA 248 X GLN 249 n 248 GLN 249 X PRO 250 n 249 PRO 250 X LEU 251 n 250 LEU 251 X LYS 252 n 251 LYS 252 X ASN 253 n 252 ASN 253 X ARG 254 n 253 ARG 254 X GLN 255 n 254 GLN 255 X ILE 256 n 255 ILE 256 X LYS 257 n 256 LYS 257 X ALA 258 n 257 ALA 258 X SER 259 n 258 SER 259 X PHE 260 n 259 PHE 260 X LYS 261 n 260 LYS 261 X author_defined_assembly 1 monomeric X HIS 94 A NE2 HIS 94 1_555 X ZN 262 B ZN ZN 1_555 X HIS 96 A NE2 HIS 96 1_555 106.6 X HIS 94 A NE2 HIS 94 1_555 X ZN 262 B ZN ZN 1_555 X HIS 119 A ND1 HIS 119 1_555 117.8 X HIS 96 A NE2 HIS 96 1_555 X ZN 262 B ZN ZN 1_555 X HIS 119 A ND1 HIS 119 1_555 98.3 X HIS 94 A NE2 HIS 94 1_555 X ZN 262 B ZN ZN 1_555 X HOH 265 D O HOH 1_555 108.3 X HIS 96 A NE2 HIS 96 1_555 X ZN 262 B ZN ZN 1_555 X HOH 265 D O HOH 1_555 108.9 X HIS 119 A ND1 HIS 119 1_555 X ZN 262 B ZN ZN 1_555 X HOH 265 D O HOH 1_555 115.9 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 X N ILE 33 A N ILE 33 X O THR 108 A O THR 108 X N LYS 39 A N LYS 39 X O ALA 258 A O ALA 257 X O LYS 257 A O LYS 256 X N THR 193 A N THR 192 X N GLY 196 A N GLY 195 X O VAL 207 A O VAL 206 X O ILE 210 A O ILE 209 X N GLY 145 A N GLY 144 X O ILE 146 A O ILE 145 X N LEU 118 A N LEU 118 X O VAL 121 A O VAL 121 X N GLN 92 A N GLN 92 X O PHE 93 A O PHE 93 X N VAL 68 A N VAL 68 X O GLU 69 A O GLU 69 X N LEU 57 A N LEU 57 X N ILE 59 A N ILE 59 X O ALA 174 A O ALA 173 X N SER 50 A N SER 50 X O VAL 78 A O VAL 78 X N LEU 79 A N LEU 79 X O TYR 88 A O TYR 88 X N GLN 92 A N GLN 92 X O VAL 121 A O VAL 121 X N LEU 118 A N LEU 118 X O ILE 146 A O ILE 145 X N GLY 151 A N GLY 150 X O VAL 218 A O VAL 217 1 X MET 1 A MET 1 1 Y 1 X SER 2 A SER 2 1 Y 1 X CL 264 C CL 0 N 1 X X GLU GLY 234 235 -63.74 1 3.23 0.50 120.30 123.53 X X X NE CZ NH1 ARG ARG ARG 89 89 89 N 1 -3.97 0.50 120.30 116.33 X X X NE CZ NH2 ARG ARG ARG 89 89 89 N 1 6.92 0.90 118.30 125.22 X X X CB CG OD2 ASP ASP ASP 130 130 130 N 1 6.80 0.90 118.30 125.10 X X X CB CG OD1 ASP ASP ASP 139 139 139 N 1 6.69 0.90 118.30 124.99 X X X CB CG OD2 ASP ASP ASP 175 175 175 N 1 X X CD1 CE1 TYR TYR 51 51 0.101 0.015 1.389 1.490 N 1 X X CA CB ALA ALA 116 116 0.131 0.021 1.520 1.651 N 1 X X CB CG2 VAL VAL 242 242 0.160 0.021 1.524 1.684 N 1 X ASN 11 -141.11 15.45 1 X GLU 205 -102.12 66.24 1 X LYS 252 53.91 -141.38 0.205 0.144 2.0 20.0 1 Random MOLECULAR REPLACEMENT pdb ENTRY 2CBA Engh & Huber 2.0 20.0 91 2163 2 0 2070 0.029 2.154 2.0 20.0 1TB0 16365 0.12 1 2.0 2.07 0.447 95.9 data scaling SCALEPACK phasing AMoRE refinement REFMAC 5.0 Effect of Shuttle Location and pH Environment on H+ Transfer in Human Carbonic Anhydrase II 1 N N 2 N N 3 N N 4 N N X HIS 15 A HIS 15 HELX_P X ASP 19 A ASP 19 5 1 5 X PHE 20 A PHE 20 HELX_P X GLY 25 A GLY 25 5 2 6 X LYS 127 A LYS 126 HELX_P X GLY 129 A GLY 128 5 3 3 X ASP 130 A ASP 129 HELX_P X VAL 135 A VAL 134 1 4 6 X LYS 154 A LYS 153 HELX_P X GLY 156 A GLY 155 5 5 3 X LEU 157 A LEU 156 HELX_P X LEU 164 A LEU 163 1 6 8 X ASP 165 A ASP 164 HELX_P X LYS 168 A LYS 167 5 7 4 X ASP 180 A ASP 179 HELX_P X LEU 185 A LEU 184 5 8 6 X SER 220 A SER 219 HELX_P X ARG 227 A ARG 226 1 9 8 metalc 1.981 X HIS 94 A NE2 HIS 94 1_555 X ZN 262 B ZN ZN 1_555 metalc 1.929 X HIS 96 A NE2 HIS 96 1_555 X ZN 262 B ZN ZN 1_555 metalc 1.947 X HIS 119 A ND1 HIS 119 1_555 X ZN 262 B ZN ZN 1_555 metalc 2.009 X ZN 262 B ZN ZN 1_555 X HOH 265 D O HOH 1_555 LYASE proton shuttle carbonic anhydrase metalloenzyme, LYASE X SER 29 A SER 29 1 X PRO 30 A PRO 30 -1.83 X PRO 201 A PRO 200 1 X PRO 202 A PRO 201 9.78 CAH2_HUMAN UNP 1 1 P00918 SHHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKG GPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVD VLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMV DNWRPAQPLKNRQIKASFK 1 259 1TB0 2 260 P00918 X 1 2 259 1 initiating methionine MET 1 1TB0 X P00918 UNP 1 2 10 6 parallel parallel anti-parallel anti-parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel parallel X ASP 32 A ASP 32 X ILE 33 A ILE 33 X THR 108 A THR 108 X VAL 109 A VAL 109 X LYS 39 A LYS 39 X TYR 40 A TYR 40 X LYS 257 A LYS 256 X ALA 258 A ALA 257 X TYR 191 A TYR 190 X GLY 196 A GLY 195 X VAL 207 A VAL 206 X LEU 212 A LEU 211 X LEU 141 A LEU 140 X GLY 151 A GLY 150 X ALA 116 A ALA 116 X ASN 124 A ASN 124 X TYR 88 A TYR 88 X TRP 97 A TRP 97 X PHE 66 A PHE 66 X PHE 70 A PHE 70 X SER 56 A SER 56 X ASN 61 A ASN 61 X SER 173 A SER 172 X ASP 175 A ASP 174 X LEU 47 A LEU 47 X SER 50 A SER 50 X VAL 78 A VAL 78 X GLY 81 A GLY 81 X TYR 88 A TYR 88 X TRP 97 A TRP 97 X ALA 116 A ALA 116 X ASN 124 A ASN 124 X LEU 141 A LEU 140 X GLY 151 A GLY 150 X ILE 216 A ILE 215 X SER 219 A SER 218 BINDING SITE FOR RESIDUE ZN X 262 X ZN 262 Software 4 X HIS 94 A HIS 94 4 1_555 X HIS 96 A HIS 96 4 1_555 X HIS 119 A HIS 119 4 1_555 X HOH 265 D HOH 4 1_555 4 P 1 21 1