0.029055 0.000000 0.000000 0.000000 0.013011 0.000000 0.000000 0.000000 0.013075 0.000000 0.000000 0.000000 Brustad, E.M. Baril, S.A. Waters, M.L. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 8 90.000 90.000 90.000 34.417 76.857 76.479 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 C9 H21 N2 O2 1 189.275 n N-TRIMETHYLLYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE L-peptide linking C9 H10 N2 O4 210.187 n PARA-NITROPHENYLALANINE 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 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 N 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 H N 108 N N N 109 S C N 110 N C N 111 N O N 112 N C N 113 N C N 114 N C N 115 N O 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 H N 124 N H N 125 N H N 126 N H N 127 N N N 128 N C N 129 N C N 130 N O N 131 N O N 132 N H N 133 N H N 134 N H N 135 N H N 136 N H N 137 N N N 138 S C N 139 N C N 140 N O N 141 N C Y 142 N C Y 143 N N Y 144 N C Y 145 N C Y 146 N N N 147 N O 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 O N 159 N H N 160 N H N 161 N N N 162 S C N 163 N C N 164 N O N 165 S C N 166 N C N 167 N C N 168 N C 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 N N 184 S C N 185 N C N 186 N O N 187 N C N 188 N C N 189 N C N 190 N C N 191 N O N 192 N H 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 N N 206 S C N 207 N C N 208 N O N 209 N C N 210 N C N 211 N C N 212 N C N 213 N N N 214 N O N 215 N H 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 N N 231 S C N 232 N C N 233 N C N 234 N C N 235 N C N 236 N N N 237 N C N 238 N O N 239 N O N 240 N C N 241 N C N 242 N C 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 H 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 H N 260 N H N 261 N H N 262 N H N 263 N H N 264 N N N 265 S C N 266 N C N 267 N O N 268 N C N 269 N C N 270 N S N 271 N C N 272 N O N 273 N H N 274 N H N 275 N H N 276 N H 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 N N 285 S C N 286 N C N 287 N O N 288 N O N 289 N C Y 290 N C Y 291 N C Y 292 N C Y 293 N C Y 294 N C Y 295 N C N 296 N N N 297 N O N 298 N O 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 H N 306 N H N 307 N H N 308 N H N 309 N N N 310 S C N 311 N C N 312 N O N 313 N C N 314 N C N 315 N C N 316 N O N 317 N H N 318 N H N 319 N H N 320 N H N 321 N H N 322 N H N 323 N H N 324 N H N 325 N H N 326 N N N 327 S C N 328 N C N 329 N O N 330 N C N 331 N O N 332 N O N 333 N H N 334 N H N 335 N H N 336 N H N 337 N H N 338 N H N 339 N H N 340 N N N 341 S C N 342 N C N 343 N O N 344 R C N 345 N O N 346 N C N 347 N O 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 356 N H N 357 N N N 358 S C N 359 N C N 360 N O N 361 N C Y 362 N C Y 363 N C Y 364 N C Y 365 N N Y 366 N C Y 367 N C Y 368 N C Y 369 N C Y 370 N C N 371 N O N 372 N H N 373 N H N 374 N H N 375 N H N 376 N H N 377 N H N 378 N H N 379 N H N 380 N H N 381 N H N 382 N H N 383 N H N 384 N N N 385 S C N 386 N C N 387 N O N 388 N C Y 389 N C Y 390 N C Y 391 N C Y 392 N C Y 393 N C Y 394 N C N 395 N O N 396 N O N 397 N H N 398 N H N 399 N H N 400 N H N 401 N H N 402 N H N 403 N H N 404 N H N 405 N H N 406 N H N 407 N H N 408 N N N 409 S C N 410 N C N 411 N O N 412 N C N 413 N C N 414 N C N 415 N O N 416 N H N 417 N H N 418 N H N 419 N H N 420 N H N 421 N H N 422 N H N 423 N H N 424 N H N 425 N H N 426 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 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 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 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 doub 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 sing 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 doub 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 sing N 271 N sing N 272 N sing N 273 N sing N 274 N sing N 275 N sing N 276 N doub N 277 N sing N 278 N sing N 279 N sing N 280 N sing N 281 N sing Y 282 N doub Y 283 N sing Y 284 N sing N 285 N sing Y 286 N doub N 287 N sing Y 288 N doub N 289 N sing Y 290 N sing N 291 N sing N 292 N sing N 293 N doub N 294 N sing 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 doub 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 sing N 313 N sing N 314 N sing N 315 N sing N 316 N sing N 317 N sing N 318 N doub N 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 sing N 331 N doub 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 N 342 N sing N 343 N sing N 344 N sing N 345 N sing N 346 N sing N 347 N doub N 348 N sing N 349 N sing N 350 N sing N 351 N sing Y 352 N doub Y 353 N sing Y 354 N sing N 355 N sing Y 356 N doub Y 357 N sing Y 358 N sing N 359 N sing Y 360 N sing Y 361 N doub N 362 N sing Y 363 N doub N 364 N sing Y 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 doub N 376 N sing N 377 N sing N 378 N sing N 379 N sing Y 380 N doub Y 381 N sing Y 382 N sing N 383 N sing Y 384 N doub N 385 N sing Y 386 N doub N 387 N sing Y 388 N sing N 389 N sing N 390 N sing N 391 N sing N 392 N sing N 393 N sing N 394 N sing N 395 N sing N 396 N sing N 397 N sing N 398 N sing N 399 N doub N 400 N sing N 401 N sing N 402 N sing N 403 N sing N 404 N sing N 405 N sing N 406 N sing N 407 N sing N 408 N sing N 409 N sing N 410 N sing US J. Am. Chem. Soc. JACSAT 1520-5126 139 17253 17256 10.1021/jacs.7b09223 29111699 Investigation of Trimethyllysine Binding by the HP1 Chromodomain via Unnatural Amino Acid Mutagenesis. 2017 10.2210/pdb6at0/pdb pdb_00006at0 100 1 CCD 2015-11-09 MARMOSAIC 300 mm CCD SINGLE WAVELENGTH M x-ray 1 1.000 1.0 22-ID APS 1.000 SYNCHROTRON APS BEAMLINE 22-ID 8615.466 Heterochromatin protein 1 Chromo 1 domain, residues 17-76 K38M 1 man polymer 733.857 trimethyl lysine histone H3 tail peptide 1 syn polymer 18.015 water 40 nat water HP1,Non-histone chromosomal protein C1A9 antigen no yes MKKHHHHHHAEEEEEE(PPN)AVEKIIDRRVRKGMVEYYLKWKGYPETENTWEPENNLDCQDLIQQYEASRKD MKKHHHHHHAEEEEEEFAVEKIIDRRVRKGMVEYYLKWKGYPETENTWEPENNLDCQDLIQQYEASRKD A polypeptide(L) no yes QTAR(M3L)S QTARKS P 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 Fruit fly sample 1 69 Su(var)205, HP1, CG8409 7227 Drosophila melanogaster 469008 Escherichia coli BL21(DE3) BL21 (DE3) Biological sequence 1 2.70 54.52 VAPOR DIFFUSION, SITTING DROP 5.8 0.1M MES, 3.0M (NH4)2SO4 277 citation chem_comp_atom chem_comp_bond database_2 pdbx_initial_refinement_model repository Initial release Database references Data collection Database references Refinement description 1 0 2017-12-06 1 1 2017-12-13 1 2 2023-10-04 _citation.journal_volume _citation.page_first _citation.page_last _database_2.pdbx_DOI _database_2.pdbx_database_accession N RCSB Y RCSB 2017-08-27 REL REL HOH water 7227 Drosophila melanogaster sample 1 6 1KNE PDB experimental model HOH 17 3 HOH HOH 101 A HOH 24 3 HOH HOH 102 A HOH 29 3 HOH HOH 103 A HOH 15 3 HOH HOH 104 A HOH 21 3 HOH HOH 105 A HOH 9 3 HOH HOH 106 A HOH 4 3 HOH HOH 107 A HOH 7 3 HOH HOH 108 A HOH 30 3 HOH HOH 109 A HOH 19 3 HOH HOH 110 A HOH 5 3 HOH HOH 111 A HOH 16 3 HOH HOH 112 A HOH 12 3 HOH HOH 113 A HOH 3 3 HOH HOH 114 A HOH 10 3 HOH HOH 115 A HOH 2 3 HOH HOH 116 A HOH 14 3 HOH HOH 117 A HOH 13 3 HOH HOH 118 A HOH 22 3 HOH HOH 119 A HOH 27 3 HOH HOH 120 A HOH 36 3 HOH HOH 121 A HOH 1 3 HOH HOH 122 A HOH 26 3 HOH HOH 123 A HOH 39 3 HOH HOH 124 A HOH 6 3 HOH HOH 125 A HOH 23 3 HOH HOH 126 A HOH 35 3 HOH HOH 127 A HOH 33 3 HOH HOH 128 A HOH 38 3 HOH HOH 129 A HOH 18 3 HOH HOH 130 A HOH 25 3 HOH HOH 131 A HOH 40 3 HOH HOH 132 A HOH 34 3 HOH HOH 133 A HOH 28 3 HOH HOH 134 A HOH 20 3 HOH HOH 135 A HOH 37 3 HOH HOH 136 A HOH 8 3 HOH HOH 137 A HOH 11 3 HOH HOH 138 A HOH 31 3 HOH HOH 139 A HOH 32 3 HOH HOH 101 P n 1 8 A n 2 9 A n 3 10 A n 4 11 A n 5 12 A n 6 13 A n 7 14 A n 8 15 A n 9 16 A n 10 17 A n 11 18 A n 12 19 A n 13 20 A n 14 21 A GLU 22 n 15 GLU 22 A GLU 23 n 16 GLU 23 A PPN 24 n 17 PPN 24 A ALA 25 n 18 ALA 25 A VAL 26 n 19 VAL 26 A GLU 27 n 20 GLU 27 A LYS 28 n 21 LYS 28 A ILE 29 n 22 ILE 29 A ILE 30 n 23 ILE 30 A ASP 31 n 24 ASP 31 A ARG 32 n 25 ARG 32 A ARG 33 n 26 ARG 33 A VAL 34 n 27 VAL 34 A ARG 35 n 28 ARG 35 A LYS 36 n 29 LYS 36 A GLY 37 n 30 GLY 37 A MET 38 n 31 MET 38 A VAL 39 n 32 VAL 39 A GLU 40 n 33 GLU 40 A TYR 41 n 34 TYR 41 A TYR 42 n 35 TYR 42 A LEU 43 n 36 LEU 43 A LYS 44 n 37 LYS 44 A TRP 45 n 38 TRP 45 A LYS 46 n 39 LYS 46 A GLY 47 n 40 GLY 47 A TYR 48 n 41 TYR 48 A PRO 49 n 42 PRO 49 A GLU 50 n 43 GLU 50 A THR 51 n 44 THR 51 A GLU 52 n 45 GLU 52 A ASN 53 n 46 ASN 53 A THR 54 n 47 THR 54 A TRP 55 n 48 TRP 55 A GLU 56 n 49 GLU 56 A PRO 57 n 50 PRO 57 A GLU 58 n 51 GLU 58 A ASN 59 n 52 ASN 59 A ASN 60 n 53 ASN 60 A LEU 61 n 54 LEU 61 A ASP 62 n 55 ASP 62 A CYS 63 n 56 CYS 63 A GLN 64 n 57 GLN 64 A ASP 65 n 58 ASP 65 A LEU 66 n 59 LEU 66 A ILE 67 n 60 ILE 67 A GLN 68 n 61 GLN 68 A GLN 69 n 62 GLN 69 A TYR 70 n 63 TYR 70 A GLU 71 n 64 GLU 71 A ALA 72 n 65 ALA 72 A SER 73 n 66 SER 73 A ARG 74 n 67 ARG 74 A n 68 75 A n 69 76 A GLN 5 n 1 GLN 5 P THR 6 n 2 THR 6 P ALA 7 n 3 ALA 7 P ARG 8 n 4 ARG 8 P M3L 9 n 5 M3L 9 P SER 10 n 6 SER 10 P author_and_software_defined_assembly PISA 2 dimeric none 1180 -5 4170 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 O THR 54 A O THR 47 A N LEU 43 A N LEU 36 A O TYR 42 A O TYR 35 A N ILE 30 A N ILE 23 A N PPN 24 A N PPN 17 P O ALA 7 B O ALA 3 P O THR 6 B O THR 2 A N ASP 62 A N ASP 55 1 A HOH 135 C HOH 1 A MET 8 A MET 1 1 Y 1 A LYS 9 A LYS 2 1 Y 1 A LYS 10 A LYS 3 1 Y 1 A HIS 11 A HIS 4 1 Y 1 A HIS 12 A HIS 5 1 Y 1 A HIS 13 A HIS 6 1 Y 1 A HIS 14 A HIS 7 1 Y 1 A HIS 15 A HIS 8 1 Y 1 A HIS 16 A HIS 9 1 Y 1 A ALA 17 A ALA 10 1 Y 1 A GLU 18 A GLU 11 1 Y 1 A GLU 19 A GLU 12 1 Y 1 A GLU 20 A GLU 13 1 Y 1 A GLU 21 A GLU 14 1 Y 1 A LYS 75 A LYS 68 1 Y 1 A ASP 76 A ASP 69 1 Y 1 A ASP 62 -115.74 73.65 1 A CYS 63 -142.04 55.97 95.300 28.7653 13.750 0.2597 0.2410 0.2418 1.2850 11.2240 1291 25429 5.0800 96.8400 0.5300 1 FREE R-VALUE 1.420 MOLECULAR REPLACEMENT 39.0100 0.9000 1.1100 1KNE 1.2850 11.2240 40 551 37.51 0 0 511 59 0.004 551 0.751 747 0.074 74 0.004 98 21.256 217 0.4870 0.5129 1.3359 135 2562 2697 9 94.0000 0.4177 0.4590 1.3966 136 2591 2727 9 95.0000 0.3904 0.4086 1.4700 143 2609 2752 9 96.0000 0.3110 0.3566 1.5619 155 2686 2841 9 97.0000 0.2668 0.2839 1.6821 138 2684 2822 9 98.0000 0.2526 0.2270 1.8507 165 2704 2869 9 99.0000 0.2032 0.1987 2.1170 141 2732 2873 9 98.0000 0.2363 0.2180 2.6613 149 2752 2901 9 98.0000 0.2403 0.2045 11.2242 129 2818 2947 9 96.0000 1.285 11.2240 6AT0 25429 1 12.8 5.36 96.9 1 refinement PHENIX (1.10.1_2155) data extraction PDB_EXTRACT 3.20 N Chromodomain HP1 with a p-nitro-L-phenylalanine mutation at position 24 bound to histone H3 peptide containing trimethyl lysine 1 N N 2 N N 3 N N 3 N N A PRO 49 A PRO 42 HELX_P A ASN 53 A ASN 46 5 AA1 5 A CYS 63 A CYS 56 HELX_P A ARG 74 A ARG 67 1 AA2 12 covale 1.330 both A GLU 23 A C GLU 16 1_555 A PPN 24 A N PPN 17 1_555 covale 1.331 both A PPN 24 A C PPN 17 1_555 A ALA 25 A N ALA 18 1_555 covale 1.329 both P ARG 8 B C ARG 4 1_555 P M3L 9 B N M3L 5 1_555 covale 1.329 both A P M3L 9 B C M3L 5 1_555 P SER 10 B N SER 6 1_555 covale 1.329 both B P M3L 9 B C M3L 5 1_555 P SER 10 B N SER 6 1_555 TRANSCRIPTION histone reader, TRANSCRIPTION HP1_DROME UNP 1 17 P05205 AEEEEEEYAVEKIIDRRVRKGKVEYYLKWKGYPETENTWEPENNLDCQDLIQQYEASRKD 6AT0 PDB 2 1 6AT0 17 76 6AT0 17 76 P05205 A 1 10 69 5 10 6AT0 5 10 6AT0 P 2 1 6 1 initiating methionine MET 8 6AT0 A P05205 UNP 1 1 expression tag LYS 9 6AT0 A P05205 UNP 2 1 expression tag LYS 10 6AT0 A P05205 UNP 3 1 expression tag HIS 11 6AT0 A P05205 UNP 4 1 expression tag HIS 12 6AT0 A P05205 UNP 5 1 expression tag HIS 13 6AT0 A P05205 UNP 6 1 expression tag HIS 14 6AT0 A P05205 UNP 7 1 expression tag HIS 15 6AT0 A P05205 UNP 8 1 expression tag HIS 16 6AT0 A P05205 UNP 9 1 TYR engineered mutation PPN 24 6AT0 A P05205 UNP 24 17 1 LYS engineered mutation MET 38 6AT0 A P05205 UNP 38 31 5 anti-parallel anti-parallel anti-parallel anti-parallel A THR 54 A THR 47 A PRO 57 A PRO 50 A MET 38 A MET 31 A TRP 45 A TRP 38 A GLU 23 A GLU 16 A ARG 35 A ARG 28 P THR 6 B THR 2 P ARG 8 B ARG 4 A LEU 61 A LEU 54 A ASP 62 A ASP 55 20 C 2 2 21