1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Boehm, M.K. Perkins, S.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 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 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 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 NE Febs Lett. FEBLAL 0165 0014-5793 475 11 16 10.1016/s0014-5793(00)01612-4 10854848 Structural models for carcinoembryonic antigen and its complex with the single-chain Fv antibody molecule MFE23. 2000 UK Biochem.J. BIJOAK 0043 0264-6021 346 519 10677374 Crystal Structure of the Anti-(Carcinoembryonic Antigen) Single-Chain Fv Antibody Mfe-23 and a Model for Antigen Binding Based on Intermolecular Contacts. 2000 UK J.Mol.Biol. JMOBAK 0070 0022-2836 259 718 8683578 Extended Glycoprotein Structure of the Seven Domains in Human Carcinoembryonic Antigen by X-Ray and Neutron Solution Scattering and an Automated Curve Fitting Procedure: Implications for Cellular Adhesion. 1996 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 70620.727 CARCINOEMBRYONIC ANTIGEN 1 nat polymer no no KLTIESTPFNVAEGKEVLLLVHNLPQHLFGYSWYKGERVDGNRQIIGYVIGTQQATPGPAYSGREIIYPNASLLIQNIIQ NDTGFYTLHVIKSDLVNEEATGQFRVYPELPKPSISSNNSKPVEDKDAVAFTCEPETQDATYLWWVNNQSLPVSPRLQLS NGNRTLTLFNVTRNDTASYKCETQNPVSARRSDSVILNVLYGPDAPTISPLNTSYRSGENLNLSCHAASNPPAQYSWFVN GTFQQSTQELFIPNITVNNSGSYTCQAHNSDTGLNRTTVTTITVYAEPPKPFITSNNSNPVEDEDAVALTCEPEIQNTTY LWWVNNQSLPVSPRLQLSNDNRTLTLLSVTRNDVGPYECGIQNELSVDHSDPVILNVLYGPDDPTISPSYTYYRPGVNLS LSCHAASNPPAQYSWLIDGNIQQHTQELFISNITEKNSGLYTCQANNSASGHSRTTVKTITVSAELPKPSISSNNSKPVE DKDAVAFTCEPEAQNTTYLWWVNGQSLPVSPRLQLSNGNRTLTLFNVTRNDARAYVCGIQNSVSANRSDPVTLDVLYGPD TPIISPPDSSYLSGANLNLSCHSASNPSPQYSWRINGIPQQHTQVLFIAKITPNNNGTYACFVSNLATGRNNSIVKSITV SA KLTIESTPFNVAEGKEVLLLVHNLPQHLFGYSWYKGERVDGNRQIIGYVIGTQQATPGPAYSGREIIYPNASLLIQNIIQ NDTGFYTLHVIKSDLVNEEATGQFRVYPELPKPSISSNNSKPVEDKDAVAFTCEPETQDATYLWWVNNQSLPVSPRLQLS NGNRTLTLFNVTRNDTASYKCETQNPVSARRSDSVILNVLYGPDAPTISPLNTSYRSGENLNLSCHAASNPPAQYSWFVN GTFQQSTQELFIPNITVNNSGSYTCQAHNSDTGLNRTTVTTITVYAEPPKPFITSNNSNPVEDEDAVALTCEPEIQNTTY LWWVNNQSLPVSPRLQLSNDNRTLTLLSVTRNDVGPYECGIQNELSVDHSDPVILNVLYGPDDPTISPSYTYYRPGVNLS LSCHAASNPPAQYSWLIDGNIQQHTQELFISNITEKNSGLYTCQANNSASGHSRTTVKTITVSAELPKPSISSNNSKPVE DKDAVAFTCEPEAQNTTYLWWVNGQSLPVSPRLQLSNGNRTLTLFNVTRNDARAYVCGIQNSVSANRSDPVTLDVLYGPD TPIISPPDSSYLSGANLNLSCHSASNPSPQYSWRINGIPQQHTQVLFIAKITPNNNGTYACFVSNLATGRNNSIVKSITV SA 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 n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n 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 sample 9606 HOMO SAPIENS citation repository Initial release Database references Version format compliance Data collection Database references 1 0 2000-07-04 1 1 2011-12-28 1 2 2019-10-09 _citation.journal_abbrev _citation.page_last _citation.pdbx_database_id_DOI _citation.title CA ATOMS ONLY PDBE Y PDBE 2000-03-11 REL THE CARCINOEMBRYONIC ANTIGEN PRECURSOR CONTAINS A 34-RESIDUE N-TERMINAL SIGNAL PEPTIDE AND A 26-RESIDUE C-TERMINAL HYDROPHOBIC PEPTIDE, BOTH OF WHICH ARE POST-TRANSLATIONALLY CLEAVED. LYS 1 n 1 LYS 1 A LEU 2 n 2 LEU 2 A THR 3 n 3 THR 3 A ILE 4 n 4 ILE 4 A GLU 5 n 5 GLU 5 A SER 6 n 6 SER 6 A THR 7 n 7 THR 7 A PRO 8 n 8 PRO 8 A PHE 9 n 9 PHE 9 A ASN 10 n 10 ASN 10 A VAL 11 n 11 VAL 11 A ALA 12 n 12 ALA 12 A GLU 13 n 13 GLU 13 A GLY 14 n 14 GLY 14 A LYS 15 n 15 LYS 15 A GLU 16 n 16 GLU 16 A VAL 17 n 17 VAL 17 A LEU 18 n 18 LEU 18 A LEU 19 n 19 LEU 19 A LEU 20 n 20 LEU 20 A VAL 21 n 21 VAL 21 A HIS 22 n 22 HIS 22 A ASN 23 n 23 ASN 23 A LEU 24 n 24 LEU 24 A PRO 25 n 25 PRO 25 A GLN 26 n 26 GLN 26 A HIS 27 n 27 HIS 27 A LEU 28 n 28 LEU 28 A PHE 29 n 29 PHE 29 A GLY 30 n 30 GLY 30 A TYR 31 n 31 TYR 31 A SER 32 n 32 SER 32 A TRP 33 n 33 TRP 33 A TYR 34 n 34 TYR 34 A LYS 35 n 35 LYS 35 A GLY 36 n 36 GLY 36 A GLU 37 n 37 GLU 37 A ARG 38 n 38 ARG 38 A VAL 39 n 39 VAL 39 A ASP 40 n 40 ASP 40 A GLY 41 n 41 GLY 41 A ASN 42 n 42 ASN 42 A ARG 43 n 43 ARG 43 A GLN 44 n 44 GLN 44 A ILE 45 n 45 ILE 45 A ILE 46 n 46 ILE 46 A GLY 47 n 47 GLY 47 A TYR 48 n 48 TYR 48 A VAL 49 n 49 VAL 49 A ILE 50 n 50 ILE 50 A GLY 51 n 51 GLY 51 A THR 52 n 52 THR 52 A GLN 53 n 53 GLN 53 A GLN 54 n 54 GLN 54 A ALA 55 n 55 ALA 55 A THR 56 n 56 THR 56 A PRO 57 n 57 PRO 57 A GLY 58 n 58 GLY 58 A PRO 59 n 59 PRO 59 A ALA 60 n 60 ALA 60 A TYR 61 n 61 TYR 61 A SER 62 n 62 SER 62 A GLY 63 n 63 GLY 63 A ARG 64 n 64 ARG 64 A GLU 65 n 65 GLU 65 A ILE 66 n 66 ILE 66 A ILE 67 n 67 ILE 67 A TYR 68 n 68 TYR 68 A PRO 69 n 69 PRO 69 A ASN 70 n 70 ASN 70 A ALA 71 n 71 ALA 71 A SER 72 n 72 SER 72 A LEU 73 n 73 LEU 73 A LEU 74 n 74 LEU 74 A ILE 75 n 75 ILE 75 A GLN 76 n 76 GLN 76 A ASN 77 n 77 ASN 77 A ILE 78 n 78 ILE 78 A ILE 79 n 79 ILE 79 A GLN 80 n 80 GLN 80 A ASN 81 n 81 ASN 81 A ASP 82 n 82 ASP 82 A THR 83 n 83 THR 83 A GLY 84 n 84 GLY 84 A PHE 85 n 85 PHE 85 A TYR 86 n 86 TYR 86 A THR 87 n 87 THR 87 A LEU 88 n 88 LEU 88 A HIS 89 n 89 HIS 89 A VAL 90 n 90 VAL 90 A ILE 91 n 91 ILE 91 A LYS 92 n 92 LYS 92 A SER 93 n 93 SER 93 A ASP 94 n 94 ASP 94 A LEU 95 n 95 LEU 95 A VAL 96 n 96 VAL 96 A ASN 97 n 97 ASN 97 A GLU 98 n 98 GLU 98 A GLU 99 n 99 GLU 99 A ALA 100 n 100 ALA 100 A THR 101 n 101 THR 101 A GLY 102 n 102 GLY 102 A GLN 103 n 103 GLN 103 A PHE 104 n 104 PHE 104 A ARG 105 n 105 ARG 105 A VAL 106 n 106 VAL 106 A TYR 107 n 107 TYR 107 A PRO 108 n 108 PRO 108 A GLU 109 n 109 GLU 109 A LEU 110 n 110 LEU 110 A PRO 111 n 111 PRO 111 A LYS 112 n 112 LYS 112 A PRO 113 n 113 PRO 113 A SER 114 n 114 SER 114 A ILE 115 n 115 ILE 115 A SER 116 n 116 SER 116 A SER 117 n 117 SER 117 A ASN 118 n 118 ASN 118 A ASN 119 n 119 ASN 119 A SER 120 n 120 SER 120 A LYS 121 n 121 LYS 121 A PRO 122 n 122 PRO 122 A VAL 123 n 123 VAL 123 A GLU 124 n 124 GLU 124 A ASP 125 n 125 ASP 125 A LYS 126 n 126 LYS 126 A ASP 127 n 127 ASP 127 A ALA 128 n 128 ALA 128 A VAL 129 n 129 VAL 129 A ALA 130 n 130 ALA 130 A PHE 131 n 131 PHE 131 A THR 132 n 132 THR 132 A CYS 133 n 133 CYS 133 A GLU 134 n 134 GLU 134 A PRO 135 n 135 PRO 135 A GLU 136 n 136 GLU 136 A THR 137 n 137 THR 137 A GLN 138 n 138 GLN 138 A ASP 139 n 139 ASP 139 A ALA 140 n 140 ALA 140 A THR 141 n 141 THR 141 A TYR 142 n 142 TYR 142 A LEU 143 n 143 LEU 143 A TRP 144 n 144 TRP 144 A TRP 145 n 145 TRP 145 A VAL 146 n 146 VAL 146 A ASN 147 n 147 ASN 147 A ASN 148 n 148 ASN 148 A GLN 149 n 149 GLN 149 A SER 150 n 150 SER 150 A LEU 151 n 151 LEU 151 A PRO 152 n 152 PRO 152 A VAL 153 n 153 VAL 153 A SER 154 n 154 SER 154 A PRO 155 n 155 PRO 155 A ARG 156 n 156 ARG 156 A LEU 157 n 157 LEU 157 A GLN 158 n 158 GLN 158 A LEU 159 n 159 LEU 159 A SER 160 n 160 SER 160 A ASN 161 n 161 ASN 161 A GLY 162 n 162 GLY 162 A ASN 163 n 163 ASN 163 A ARG 164 n 164 ARG 164 A THR 165 n 165 THR 165 A LEU 166 n 166 LEU 166 A THR 167 n 167 THR 167 A LEU 168 n 168 LEU 168 A PHE 169 n 169 PHE 169 A ASN 170 n 170 ASN 170 A VAL 171 n 171 VAL 171 A THR 172 n 172 THR 172 A ARG 173 n 173 ARG 173 A ASN 174 n 174 ASN 174 A ASP 175 n 175 ASP 175 A THR 176 n 176 THR 176 A ALA 177 n 177 ALA 177 A SER 178 n 178 SER 178 A TYR 179 n 179 TYR 179 A LYS 180 n 180 LYS 180 A CYS 181 n 181 CYS 181 A GLU 182 n 182 GLU 182 A THR 183 n 183 THR 183 A GLN 184 n 184 GLN 184 A ASN 185 n 185 ASN 185 A PRO 186 n 186 PRO 186 A VAL 187 n 187 VAL 187 A SER 188 n 188 SER 188 A ALA 189 n 189 ALA 189 A ARG 190 n 190 ARG 190 A ARG 191 n 191 ARG 191 A SER 192 n 192 SER 192 A ASP 193 n 193 ASP 193 A SER 194 n 194 SER 194 A VAL 195 n 195 VAL 195 A ILE 196 n 196 ILE 196 A LEU 197 n 197 LEU 197 A ASN 198 n 198 ASN 198 A VAL 199 n 199 VAL 199 A LEU 200 n 200 LEU 200 A TYR 201 n 201 TYR 201 A GLY 202 n 202 GLY 202 A PRO 203 n 203 PRO 203 A ASP 204 n 204 ASP 204 A ALA 205 n 205 ALA 205 A PRO 206 n 206 PRO 206 A THR 207 n 207 THR 207 A ILE 208 n 208 ILE 208 A SER 209 n 209 SER 209 A PRO 210 n 210 PRO 210 A LEU 211 n 211 LEU 211 A ASN 212 n 212 ASN 212 A THR 213 n 213 THR 213 A SER 214 n 214 SER 214 A TYR 215 n 215 TYR 215 A ARG 216 n 216 ARG 216 A SER 217 n 217 SER 217 A GLY 218 n 218 GLY 218 A GLU 219 n 219 GLU 219 A ASN 220 n 220 ASN 220 A LEU 221 n 221 LEU 221 A ASN 222 n 222 ASN 222 A LEU 223 n 223 LEU 223 A SER 224 n 224 SER 224 A CYS 225 n 225 CYS 225 A HIS 226 n 226 HIS 226 A ALA 227 n 227 ALA 227 A ALA 228 n 228 ALA 228 A SER 229 n 229 SER 229 A ASN 230 n 230 ASN 230 A PRO 231 n 231 PRO 231 A PRO 232 n 232 PRO 232 A ALA 233 n 233 ALA 233 A GLN 234 n 234 GLN 234 A TYR 235 n 235 TYR 235 A SER 236 n 236 SER 236 A TRP 237 n 237 TRP 237 A PHE 238 n 238 PHE 238 A VAL 239 n 239 VAL 239 A ASN 240 n 240 ASN 240 A GLY 241 n 241 GLY 241 A THR 242 n 242 THR 242 A PHE 243 n 243 PHE 243 A GLN 244 n 244 GLN 244 A GLN 245 n 245 GLN 245 A SER 246 n 246 SER 246 A THR 247 n 247 THR 247 A GLN 248 n 248 GLN 248 A GLU 249 n 249 GLU 249 A LEU 250 n 250 LEU 250 A PHE 251 n 251 PHE 251 A ILE 252 n 252 ILE 252 A PRO 253 n 253 PRO 253 A ASN 254 n 254 ASN 254 A ILE 255 n 255 ILE 255 A THR 256 n 256 THR 256 A VAL 257 n 257 VAL 257 A ASN 258 n 258 ASN 258 A ASN 259 n 259 ASN 259 A SER 260 n 260 SER 260 A GLY 261 n 261 GLY 261 A SER 262 n 262 SER 262 A TYR 263 n 263 TYR 263 A THR 264 n 264 THR 264 A CYS 265 n 265 CYS 265 A GLN 266 n 266 GLN 266 A ALA 267 n 267 ALA 267 A HIS 268 n 268 HIS 268 A ASN 269 n 269 ASN 269 A SER 270 n 270 SER 270 A ASP 271 n 271 ASP 271 A THR 272 n 272 THR 272 A GLY 273 n 273 GLY 273 A LEU 274 n 274 LEU 274 A ASN 275 n 275 ASN 275 A ARG 276 n 276 ARG 276 A THR 277 n 277 THR 277 A THR 278 n 278 THR 278 A VAL 279 n 279 VAL 279 A THR 280 n 280 THR 280 A THR 281 n 281 THR 281 A ILE 282 n 282 ILE 282 A THR 283 n 283 THR 283 A VAL 284 n 284 VAL 284 A TYR 285 n 285 TYR 285 A ALA 286 n 286 ALA 286 A GLU 287 n 287 GLU 287 A PRO 288 n 288 PRO 288 A PRO 289 n 289 PRO 289 A LYS 290 n 290 LYS 290 A PRO 291 n 291 PRO 291 A PHE 292 n 292 PHE 292 A ILE 293 n 293 ILE 293 A THR 294 n 294 THR 294 A SER 295 n 295 SER 295 A ASN 296 n 296 ASN 296 A ASN 297 n 297 ASN 297 A SER 298 n 298 SER 298 A ASN 299 n 299 ASN 299 A PRO 300 n 300 PRO 300 A VAL 301 n 301 VAL 301 A GLU 302 n 302 GLU 302 A ASP 303 n 303 ASP 303 A GLU 304 n 304 GLU 304 A ASP 305 n 305 ASP 305 A ALA 306 n 306 ALA 306 A VAL 307 n 307 VAL 307 A ALA 308 n 308 ALA 308 A LEU 309 n 309 LEU 309 A THR 310 n 310 THR 310 A CYS 311 n 311 CYS 311 A GLU 312 n 312 GLU 312 A PRO 313 n 313 PRO 313 A GLU 314 n 314 GLU 314 A ILE 315 n 315 ILE 315 A GLN 316 n 316 GLN 316 A ASN 317 n 317 ASN 317 A THR 318 n 318 THR 318 A THR 319 n 319 THR 319 A TYR 320 n 320 TYR 320 A LEU 321 n 321 LEU 321 A TRP 322 n 322 TRP 322 A TRP 323 n 323 TRP 323 A VAL 324 n 324 VAL 324 A ASN 325 n 325 ASN 325 A ASN 326 n 326 ASN 326 A GLN 327 n 327 GLN 327 A SER 328 n 328 SER 328 A LEU 329 n 329 LEU 329 A PRO 330 n 330 PRO 330 A VAL 331 n 331 VAL 331 A SER 332 n 332 SER 332 A PRO 333 n 333 PRO 333 A ARG 334 n 334 ARG 334 A LEU 335 n 335 LEU 335 A GLN 336 n 336 GLN 336 A LEU 337 n 337 LEU 337 A SER 338 n 338 SER 338 A ASN 339 n 339 ASN 339 A ASP 340 n 340 ASP 340 A ASN 341 n 341 ASN 341 A ARG 342 n 342 ARG 342 A THR 343 n 343 THR 343 A LEU 344 n 344 LEU 344 A THR 345 n 345 THR 345 A LEU 346 n 346 LEU 346 A LEU 347 n 347 LEU 347 A SER 348 n 348 SER 348 A VAL 349 n 349 VAL 349 A THR 350 n 350 THR 350 A ARG 351 n 351 ARG 351 A ASN 352 n 352 ASN 352 A ASP 353 n 353 ASP 353 A VAL 354 n 354 VAL 354 A GLY 355 n 355 GLY 355 A PRO 356 n 356 PRO 356 A TYR 357 n 357 TYR 357 A GLU 358 n 358 GLU 358 A CYS 359 n 359 CYS 359 A GLY 360 n 360 GLY 360 A ILE 361 n 361 ILE 361 A GLN 362 n 362 GLN 362 A ASN 363 n 363 ASN 363 A GLU 364 n 364 GLU 364 A LEU 365 n 365 LEU 365 A SER 366 n 366 SER 366 A VAL 367 n 367 VAL 367 A ASP 368 n 368 ASP 368 A HIS 369 n 369 HIS 369 A SER 370 n 370 SER 370 A ASP 371 n 371 ASP 371 A PRO 372 n 372 PRO 372 A VAL 373 n 373 VAL 373 A ILE 374 n 374 ILE 374 A LEU 375 n 375 LEU 375 A ASN 376 n 376 ASN 376 A VAL 377 n 377 VAL 377 A LEU 378 n 378 LEU 378 A TYR 379 n 379 TYR 379 A GLY 380 n 380 GLY 380 A PRO 381 n 381 PRO 381 A ASP 382 n 382 ASP 382 A ASP 383 n 383 ASP 383 A PRO 384 n 384 PRO 384 A THR 385 n 385 THR 385 A ILE 386 n 386 ILE 386 A SER 387 n 387 SER 387 A PRO 388 n 388 PRO 388 A SER 389 n 389 SER 389 A TYR 390 n 390 TYR 390 A THR 391 n 391 THR 391 A TYR 392 n 392 TYR 392 A TYR 393 n 393 TYR 393 A ARG 394 n 394 ARG 394 A PRO 395 n 395 PRO 395 A GLY 396 n 396 GLY 396 A VAL 397 n 397 VAL 397 A ASN 398 n 398 ASN 398 A LEU 399 n 399 LEU 399 A SER 400 n 400 SER 400 A LEU 401 n 401 LEU 401 A SER 402 n 402 SER 402 A CYS 403 n 403 CYS 403 A HIS 404 n 404 HIS 404 A ALA 405 n 405 ALA 405 A ALA 406 n 406 ALA 406 A SER 407 n 407 SER 407 A ASN 408 n 408 ASN 408 A PRO 409 n 409 PRO 409 A PRO 410 n 410 PRO 410 A ALA 411 n 411 ALA 411 A GLN 412 n 412 GLN 412 A TYR 413 n 413 TYR 413 A SER 414 n 414 SER 414 A TRP 415 n 415 TRP 415 A LEU 416 n 416 LEU 416 A ILE 417 n 417 ILE 417 A ASP 418 n 418 ASP 418 A GLY 419 n 419 GLY 419 A ASN 420 n 420 ASN 420 A ILE 421 n 421 ILE 421 A GLN 422 n 422 GLN 422 A GLN 423 n 423 GLN 423 A HIS 424 n 424 HIS 424 A THR 425 n 425 THR 425 A GLN 426 n 426 GLN 426 A GLU 427 n 427 GLU 427 A LEU 428 n 428 LEU 428 A PHE 429 n 429 PHE 429 A ILE 430 n 430 ILE 430 A SER 431 n 431 SER 431 A ASN 432 n 432 ASN 432 A ILE 433 n 433 ILE 433 A THR 434 n 434 THR 434 A GLU 435 n 435 GLU 435 A LYS 436 n 436 LYS 436 A ASN 437 n 437 ASN 437 A SER 438 n 438 SER 438 A GLY 439 n 439 GLY 439 A LEU 440 n 440 LEU 440 A TYR 441 n 441 TYR 441 A THR 442 n 442 THR 442 A CYS 443 n 443 CYS 443 A GLN 444 n 444 GLN 444 A ALA 445 n 445 ALA 445 A ASN 446 n 446 ASN 446 A ASN 447 n 447 ASN 447 A SER 448 n 448 SER 448 A ALA 449 n 449 ALA 449 A SER 450 n 450 SER 450 A GLY 451 n 451 GLY 451 A HIS 452 n 452 HIS 452 A SER 453 n 453 SER 453 A ARG 454 n 454 ARG 454 A THR 455 n 455 THR 455 A THR 456 n 456 THR 456 A VAL 457 n 457 VAL 457 A LYS 458 n 458 LYS 458 A THR 459 n 459 THR 459 A ILE 460 n 460 ILE 460 A THR 461 n 461 THR 461 A VAL 462 n 462 VAL 462 A SER 463 n 463 SER 463 A ALA 464 n 464 ALA 464 A GLU 465 n 465 GLU 465 A LEU 466 n 466 LEU 466 A PRO 467 n 467 PRO 467 A LYS 468 n 468 LYS 468 A PRO 469 n 469 PRO 469 A SER 470 n 470 SER 470 A ILE 471 n 471 ILE 471 A SER 472 n 472 SER 472 A SER 473 n 473 SER 473 A ASN 474 n 474 ASN 474 A ASN 475 n 475 ASN 475 A SER 476 n 476 SER 476 A LYS 477 n 477 LYS 477 A PRO 478 n 478 PRO 478 A VAL 479 n 479 VAL 479 A GLU 480 n 480 GLU 480 A ASP 481 n 481 ASP 481 A LYS 482 n 482 LYS 482 A ASP 483 n 483 ASP 483 A ALA 484 n 484 ALA 484 A VAL 485 n 485 VAL 485 A ALA 486 n 486 ALA 486 A PHE 487 n 487 PHE 487 A THR 488 n 488 THR 488 A CYS 489 n 489 CYS 489 A GLU 490 n 490 GLU 490 A PRO 491 n 491 PRO 491 A GLU 492 n 492 GLU 492 A ALA 493 n 493 ALA 493 A GLN 494 n 494 GLN 494 A ASN 495 n 495 ASN 495 A THR 496 n 496 THR 496 A THR 497 n 497 THR 497 A TYR 498 n 498 TYR 498 A LEU 499 n 499 LEU 499 A TRP 500 n 500 TRP 500 A TRP 501 n 501 TRP 501 A VAL 502 n 502 VAL 502 A ASN 503 n 503 ASN 503 A GLY 504 n 504 GLY 504 A GLN 505 n 505 GLN 505 A SER 506 n 506 SER 506 A LEU 507 n 507 LEU 507 A PRO 508 n 508 PRO 508 A VAL 509 n 509 VAL 509 A SER 510 n 510 SER 510 A PRO 511 n 511 PRO 511 A ARG 512 n 512 ARG 512 A LEU 513 n 513 LEU 513 A GLN 514 n 514 GLN 514 A LEU 515 n 515 LEU 515 A SER 516 n 516 SER 516 A ASN 517 n 517 ASN 517 A GLY 518 n 518 GLY 518 A ASN 519 n 519 ASN 519 A ARG 520 n 520 ARG 520 A THR 521 n 521 THR 521 A LEU 522 n 522 LEU 522 A THR 523 n 523 THR 523 A LEU 524 n 524 LEU 524 A PHE 525 n 525 PHE 525 A ASN 526 n 526 ASN 526 A VAL 527 n 527 VAL 527 A THR 528 n 528 THR 528 A ARG 529 n 529 ARG 529 A ASN 530 n 530 ASN 530 A ASP 531 n 531 ASP 531 A ALA 532 n 532 ALA 532 A ARG 533 n 533 ARG 533 A ALA 534 n 534 ALA 534 A TYR 535 n 535 TYR 535 A VAL 536 n 536 VAL 536 A CYS 537 n 537 CYS 537 A GLY 538 n 538 GLY 538 A ILE 539 n 539 ILE 539 A GLN 540 n 540 GLN 540 A ASN 541 n 541 ASN 541 A SER 542 n 542 SER 542 A VAL 543 n 543 VAL 543 A SER 544 n 544 SER 544 A ALA 545 n 545 ALA 545 A ASN 546 n 546 ASN 546 A ARG 547 n 547 ARG 547 A SER 548 n 548 SER 548 A ASP 549 n 549 ASP 549 A PRO 550 n 550 PRO 550 A VAL 551 n 551 VAL 551 A THR 552 n 552 THR 552 A LEU 553 n 553 LEU 553 A ASP 554 n 554 ASP 554 A VAL 555 n 555 VAL 555 A LEU 556 n 556 LEU 556 A TYR 557 n 557 TYR 557 A GLY 558 n 558 GLY 558 A PRO 559 n 559 PRO 559 A ASP 560 n 560 ASP 560 A THR 561 n 561 THR 561 A PRO 562 n 562 PRO 562 A ILE 563 n 563 ILE 563 A ILE 564 n 564 ILE 564 A SER 565 n 565 SER 565 A PRO 566 n 566 PRO 566 A PRO 567 n 567 PRO 567 A ASP 568 n 568 ASP 568 A SER 569 n 569 SER 569 A SER 570 n 570 SER 570 A TYR 571 n 571 TYR 571 A LEU 572 n 572 LEU 572 A SER 573 n 573 SER 573 A GLY 574 n 574 GLY 574 A ALA 575 n 575 ALA 575 A ASN 576 n 576 ASN 576 A LEU 577 n 577 LEU 577 A ASN 578 n 578 ASN 578 A LEU 579 n 579 LEU 579 A SER 580 n 580 SER 580 A CYS 581 n 581 CYS 581 A HIS 582 n 582 HIS 582 A SER 583 n 583 SER 583 A ALA 584 n 584 ALA 584 A SER 585 n 585 SER 585 A ASN 586 n 586 ASN 586 A PRO 587 n 587 PRO 587 A SER 588 n 588 SER 588 A PRO 589 n 589 PRO 589 A GLN 590 n 590 GLN 590 A TYR 591 n 591 TYR 591 A SER 592 n 592 SER 592 A TRP 593 n 593 TRP 593 A ARG 594 n 594 ARG 594 A ILE 595 n 595 ILE 595 A ASN 596 n 596 ASN 596 A GLY 597 n 597 GLY 597 A ILE 598 n 598 ILE 598 A PRO 599 n 599 PRO 599 A GLN 600 n 600 GLN 600 A GLN 601 n 601 GLN 601 A HIS 602 n 602 HIS 602 A THR 603 n 603 THR 603 A GLN 604 n 604 GLN 604 A VAL 605 n 605 VAL 605 A LEU 606 n 606 LEU 606 A PHE 607 n 607 PHE 607 A ILE 608 n 608 ILE 608 A ALA 609 n 609 ALA 609 A LYS 610 n 610 LYS 610 A ILE 611 n 611 ILE 611 A THR 612 n 612 THR 612 A PRO 613 n 613 PRO 613 A ASN 614 n 614 ASN 614 A ASN 615 n 615 ASN 615 A ASN 616 n 616 ASN 616 A GLY 617 n 617 GLY 617 A THR 618 n 618 THR 618 A TYR 619 n 619 TYR 619 A ALA 620 n 620 ALA 620 A CYS 621 n 621 CYS 621 A PHE 622 n 622 PHE 622 A VAL 623 n 623 VAL 623 A SER 624 n 624 SER 624 A ASN 625 n 625 ASN 625 A LEU 626 n 626 LEU 626 A ALA 627 n 627 ALA 627 A THR 628 n 628 THR 628 A GLY 629 n 629 GLY 629 A ARG 630 n 630 ARG 630 A ASN 631 n 631 ASN 631 A ASN 632 n 632 ASN 632 A SER 633 n 633 SER 633 A ILE 634 n 634 ILE 634 A VAL 635 n 635 VAL 635 A LYS 636 n 636 LYS 636 A SER 637 n 637 SER 637 A ILE 638 n 638 ILE 638 A THR 639 n 639 THR 639 A VAL 640 n 640 VAL 640 A SER 641 n 641 SER 641 A ALA 642 n 642 ALA 642 A 12 MM NA, K PHOSPHATE, 140 MM NACL 1.2-7.0 OTOKO QUADRANT DETECTOR 8.0 0.6 2.1 0.2 10 33 Y ESRF BEAMLINE ID02 288 x-ray 12 MM NA, K PHOSPHATE, 140 MM NACL 99.9% D2O 3.6-7.3 COLETTE HE-3 ORDELA DETECTOR 8.8 0.5 2.3 0.3 1 29 N ISIS RUTHERFORD LOQ 288 neutron modelling HUMAN CARCINOEMBRYONIC ANTIGEN (CEA) CONTAINS SEVEN EXTRACELLULAR IMMUNOGLOBULIN (IG) FOLD DOMAINS. THE N- TERMINAL DOMAIN IS PREDICTED TO HAVE A V-TYPE IG FOLD, AND WAS MODELLED USING THE V-TYPE DOMAIN STRUCTURES FROM HUMAN CD2 (CODE: 1HNF), HUMAN CD4 (CODE: 3CD4) AND HUMAN CD8 (CODE: 1CD8) . THE SECOND, FOURTH AND SIXTH DOMAINS (COMMONLY REFERRED TO AS IA, IIA AND IIIA) ARE PREDICTED TO HAVE I-TYPE IG FOLDS, AND WERE MODELLED USING THE I-TYPE DOMAIN STRUCTURE FROM HUMAN VCAM-1 (CODE: 1VCA). THE THIRD, FIFTH AND SEVENTH DOMAINS (COMMONLY REFERRED TO AS IB, IIB AND IIIB) ARE PREDICTED TO HAVE C2-TYPE IG FOLDS, AND WERE MODELLED USING THE C2-TYPE DOMAIN STRUCTURE FROM HUMAN CD2 (CODE: 1HNF). FURTHER DETAILS OF THE HOMOLOGY MODELLING ARE GIVEN IN THE PRIMARY REFERENCE. IN THE COMPLETE CEA MODEL, ALL INTER-DOMAIN ORIENTATIONS BETWEEN NEIGHBOURING DOMAINS ARE BASED ON THAT BETWEEN THE TWO DOMAINS IN HUMAN CD2. SUCH AN ARRANGEMENT OF THE DOMAINS WAS SHOWN TO BE COMPATIBLE WITH THE SOLUTION STRUCTURE OF CEA BY X- RAY AND NEUTRON SCATTERING (SEE REFERENCE TWO). PDB CODE 3CD4, 1CD8 CONSTRAINED SCATTERING FITTING OF HOMOLOGY MODELS 1 BIOSYM/MSI INSIGHT II, HOMOLOGY, SCTPL4, GNOM software_defined_assembly PISA 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 A CA CA TYR SER 285 366 1.94 1 A A CA CA SER SER 463 544 2.01 ENERGY MINIMIZATION. DETAILS ARE GIVEN IN THE PRIMARY REFERENCE. 1 0 642 0 0 642 refinement DISCOVERY CARCINOEMBRYONIC ANTIGEN CA ATOMS ONLY, CHAIN A Model of human carcinoembryonic antigen by homology modelling and curve-fitting to experimental solution scattering data 1 N N GLYCOPROTEIN GLYCOPROTEIN, CEA, TUMOUR MARKER, IMMUNOGLOBULIN-FOLD CCEM_HUMAN UNP 1 P06731 35 676 1E07 1 642 P06731 A 1 1 642 1 P 1