0.025216 0.000000 0.000000 0.000000 0.022610 0.000000 0.000000 0.000000 0.022603 0.00000 0.00000 0.00000 Xue, Y. Davis, A.V. Balakrishnan, G. Stasser, J.P. Staehlin, B.M. Focia, P. Spiro, T.G. Penner-Hahn, J.E. O'Halloran, T.V. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 90.00 90.00 39.658 44.229 44.241 Ag 1 107.868 SILVER ION non-polymer 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 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 C5 H11 N O2 117.146 y VALINE L-peptide linking N 1 N AG N 2 N N N 3 S C N 4 N C N 5 N O N 6 N C N 7 N O 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 H N 15 N N N 16 S C N 17 N C N 18 N O N 19 N C N 20 N C N 21 N C N 22 N N N 23 N C N 24 N N N 25 N N N 26 N O 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 H N 42 N N N 43 S C N 44 N C N 45 N O N 46 N C N 47 N C N 48 N O N 49 N N N 50 N O 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 H N 59 N N N 60 S C N 61 N C N 62 N O N 63 N C N 64 N C N 65 N O N 66 N O N 67 N O 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 H N 75 N N N 76 S C N 77 N C N 78 N O N 79 N C N 80 N C N 81 N C N 82 N O N 83 N N N 84 N O 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 H N 95 N N N 96 S C N 97 N C N 98 N O N 99 N C N 100 N C N 101 N C N 102 N O N 103 N O N 104 N O 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 H N 114 N N N 115 N C N 116 N C 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 N N 125 S C N 126 N C N 127 N O N 128 N C Y 129 N C Y 130 N N Y 131 N C Y 132 N C Y 133 N N 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 O 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 S 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 O 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 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 N N 193 S C N 194 N C N 195 N O N 196 N C N 197 N C N 198 N C N 199 N C N 200 N N N 201 N O N 202 N H N 203 N H 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 H N 216 N H N 217 N N N 218 S C N 219 N C N 220 N O N 221 N C N 222 N C N 223 N S N 224 N C N 225 N O N 226 N H 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 N N 238 S C N 239 N C N 240 N O N 241 N C Y 242 N C Y 243 N C Y 244 N C Y 245 N C Y 246 N C Y 247 N C N 248 N O 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 N N 261 S C N 262 N C N 263 N O N 264 N C N 265 N C N 266 N C N 267 N O 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 H N 277 N N N 278 S C N 279 N C N 280 N O N 281 N C N 282 N O N 283 N O 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 R C N 296 N O N 297 N C 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 N N 309 S C N 310 N C N 311 N O N 312 N C Y 313 N C Y 314 N C Y 315 N C Y 316 N N Y 317 N C Y 318 N C Y 319 N C Y 320 N C Y 321 N C N 322 N O N 323 N H N 324 N H N 325 N H 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 N N 336 S C N 337 N C N 338 N O N 339 N C N 340 N C N 341 N C N 342 N O 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 H N 350 N H N 351 N H N 352 N H N 353 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 doub N 123 N sing N 124 N sing N 125 N sing N 126 N sing Y 127 N sing Y 128 N doub Y 129 N doub N 130 N sing Y 131 N sing N 132 N sing Y 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 doub 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 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 doub 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 doub N 231 N sing N 232 N sing N 233 N sing N 234 N sing Y 235 N doub Y 236 N sing Y 237 N sing N 238 N sing Y 239 N doub N 240 N sing Y 241 N doub N 242 N sing Y 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 doub 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 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 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 sing N 297 N sing N 298 N sing N 299 N doub N 300 N sing N 301 N sing N 302 N sing N 303 N sing Y 304 N doub Y 305 N sing Y 306 N sing N 307 N sing Y 308 N doub Y 309 N sing Y 310 N sing N 311 N sing Y 312 N sing Y 313 N doub N 314 N sing Y 315 N doub N 316 N sing Y 317 N sing N 318 N sing 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 doub N 328 N sing N 329 N sing N 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 US Nat.Chem.Biol. 1552-4450 4 107 10.1038/NCHEMBIO.2007.57 18157124 Cu(I) Recognition Via Cation-Pi and Methionine Interactions in Cusf. 2008 10.2210/pdb2vb3/pdb pdb_00002vb3 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 100 1 MIRRORS CCD 2006-07-03 MARRESEARCH SI(111) SINGLE WAVELENGTH M x-ray 1 1 1.0 17-ID APS 1 SYNCHROTRON APS BEAMLINE 17-ID 9866.225 CATION EFFLUX SYSTEM PROTEIN CUSF RESIDUES 23-110 1 man polymer 107.868 SILVER ION 1 syn non-polymer 18.015 water 18 nat water COPPER PROTEIN no no NEHHHETMSEAQPQVISATGVVKGIDLESKKITIHHDPIAAVNWPEMTMRFTITPQTKMSEIKTGDKVAFNFVQQGNLSL LQDIKVSQ NEHHHETMSEAQPQVISATGVVKGIDLESKKITIHHDPIAAVNWPEMTMRFTITPQTKMSEIKTGDKVAFNFVQQGNLSL LQDIKVSQ 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 sample 562 ESCHERICHIA COLI 469008 ESCHERICHIA COLI BL21(DE3) 1 2.07 40.5 NONE 7 2.5 M (NH4)2SO4 5% ISOPROPANOL 0.1 M NA CITRATE, PH 5.6 chem_comp_atom chem_comp_bond database_2 pdbx_initial_refinement_model repository Initial release Advisory Version format compliance Data collection Database references Refinement description 1 0 2007-12-18 1 1 2011-07-13 1 2 2023-12-13 _database_2.pdbx_DOI _database_2.pdbx_database_accession 1.5 A STRUCTURE OF APO-CUSF RESIDUES 6- 88 FROM ESCHERICHIA COLI CRYSTAL STRUCTURE OF CU(I)CUSF SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "XA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 7-STRANDED BARREL THIS IS REPRESENTED BY A 8-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. PDBE Y PDBE 2007-09-06 REL AG SILVER ION HOH water 1ZEQ PDB ENTRY 1ZEQ PDB experimental model AG 1088 2 AG AG 1088 X HOH 2001 3 HOH HOH 2001 X HOH 2002 3 HOH HOH 2002 X HOH 2003 3 HOH HOH 2003 X HOH 2004 3 HOH HOH 2004 X HOH 2005 3 HOH HOH 2005 X HOH 2006 3 HOH HOH 2006 X HOH 2007 3 HOH HOH 2007 X HOH 2008 3 HOH HOH 2008 X HOH 2009 3 HOH HOH 2009 X HOH 2010 3 HOH HOH 2010 X HOH 2011 3 HOH HOH 2011 X HOH 2012 3 HOH HOH 2012 X HOH 2013 3 HOH HOH 2013 X HOH 2014 3 HOH HOH 2014 X HOH 2015 3 HOH HOH 2015 X HOH 2016 3 HOH HOH 2016 X HOH 2017 3 HOH HOH 2017 X HOH 2018 3 HOH HOH 2018 X n 1 1 X n 2 2 X n 3 3 X n 4 4 X n 5 5 X n 6 6 X n 7 7 X n 8 8 X n 9 9 X n 10 10 X n 11 11 X n 12 12 X PRO 13 n 13 PRO 13 X GLN 14 n 14 GLN 14 X VAL 15 n 15 VAL 15 X ILE 16 n 16 ILE 16 X SER 17 n 17 SER 17 X ALA 18 n 18 ALA 18 X THR 19 n 19 THR 19 X GLY 20 n 20 GLY 20 X VAL 21 n 21 VAL 21 X VAL 22 n 22 VAL 22 X LYS 23 n 23 LYS 23 X GLY 24 n 24 GLY 24 X ILE 25 n 25 ILE 25 X ASP 26 n 26 ASP 26 X LEU 27 n 27 LEU 27 X GLU 28 n 28 GLU 28 X SER 29 n 29 SER 29 X LYS 30 n 30 LYS 30 X LYS 31 n 31 LYS 31 X ILE 32 n 32 ILE 32 X THR 33 n 33 THR 33 X ILE 34 n 34 ILE 34 X HIS 35 n 35 HIS 35 X HIS 36 n 36 HIS 36 X ASP 37 n 37 ASP 37 X PRO 38 n 38 PRO 38 X ILE 39 n 39 ILE 39 X ALA 40 n 40 ALA 40 X ALA 41 n 41 ALA 41 X VAL 42 n 42 VAL 42 X ASN 43 n 43 ASN 43 X TRP 44 n 44 TRP 44 X PRO 45 n 45 PRO 45 X GLU 46 n 46 GLU 46 X MET 47 n 47 MET 47 X THR 48 n 48 THR 48 X MET 49 n 49 MET 49 X ARG 50 n 50 ARG 50 X PHE 51 n 51 PHE 51 X THR 52 n 52 THR 52 X ILE 53 n 53 ILE 53 X THR 54 n 54 THR 54 X PRO 55 n 55 PRO 55 X GLN 56 n 56 GLN 56 X THR 57 n 57 THR 57 X LYS 58 n 58 LYS 58 X MET 59 n 59 MET 59 X SER 60 n 60 SER 60 X GLU 61 n 61 GLU 61 X ILE 62 n 62 ILE 62 X LYS 63 n 63 LYS 63 X THR 64 n 64 THR 64 X GLY 65 n 65 GLY 65 X ASP 66 n 66 ASP 66 X LYS 67 n 67 LYS 67 X VAL 68 n 68 VAL 68 X ALA 69 n 69 ALA 69 X PHE 70 n 70 PHE 70 X ASN 71 n 71 ASN 71 X PHE 72 n 72 PHE 72 X VAL 73 n 73 VAL 73 X GLN 74 n 74 GLN 74 X GLN 75 n 75 GLN 75 X GLY 76 n 76 GLY 76 X ASN 77 n 77 ASN 77 X LEU 78 n 78 LEU 78 X SER 79 n 79 SER 79 X LEU 80 n 80 LEU 80 X LEU 81 n 81 LEU 81 X GLN 82 n 82 GLN 82 X ASP 83 n 83 ASP 83 X ILE 84 n 84 ILE 84 X LYS 85 n 85 LYS 85 X VAL 86 n 86 VAL 86 X SER 87 n 87 SER 87 X GLN 88 n 88 GLN 88 X 3.8443 -6.4494 -0.2542 15.1494 0.6621 4.2323 0.1449 -0.0568 -0.1662 0.2038 -0.1933 -0.0018 -0.1281 -0.1146 0.0485 -0.6703 -0.0500 -0.0247 -0.6424 0.0187 -0.6573 refined 2.5864 -8.7560 -9.2418 X-RAY DIFFRACTION X 13 X 88 X-RAY DIFFRACTION 1 author_and_software_defined_assembly PQS 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 X N GLY 20 A N GLY 20 X O VAL 68 A O VAL 68 X N GLN 75 A N GLN 75 X O LEU 78 A O LEU 78 X N LEU 81 A N LEU 81 X O THR 52 A O THR 52 X N PHE 51 A N PHE 51 X O ILE 32 A O ILE 32 X N HIS 35 A N HIS 35 X O VAL 21 A O VAL 21 X N GLY 20 A N GLY 20 X O VAL 68 A O VAL 68 X N PHE 72 A N PHE 72 X O ILE 16 A O ILE 16 1 X CA GLN 88 A CA GLN 88 1 Y 1 X C GLN 88 A C GLN 88 1 Y 1 X O GLN 88 A O GLN 88 1 Y 1 X CB GLN 88 A CB GLN 88 1 Y 1 X CG GLN 88 A CG GLN 88 1 Y 1 X CD GLN 88 A CD GLN 88 1 Y 1 X OE1 GLN 88 A OE1 GLN 88 1 Y 1 X NE2 GLN 88 A NE2 GLN 88 1 Y 1 X ASN 1 A ASN 1 1 Y 1 X GLU 2 A GLU 2 1 Y 1 X HIS 3 A HIS 3 1 Y 1 X HIS 4 A HIS 4 1 Y 1 X HIS 5 A HIS 5 1 Y 1 X GLU 6 A GLU 6 1 Y 1 X THR 7 A THR 7 1 Y 1 X MET 8 A MET 8 1 Y 1 X SER 9 A SER 9 1 Y 1 X GLU 10 A GLU 10 1 Y 1 X ALA 11 A ALA 11 1 Y 1 X GLN 12 A GLN 12 1 Y 1 X X O O HOH HOH 2007 2009 2.18 1 X GLN 14 81.48 58.93 1 X LYS 30 73.52 35.57 1 X PRO 45 -79.76 -168.38 70.77 2.11000 0.00000 0.00000 -2.21000 0.00000 0.10000 0.921 0.915 HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. RESIDUES 1-12 AND 88 ARE DISORDERED 0.264 0.241 0.242 2.33 44.24 155 3453 4.300 99.7 22.206 0.226 RANDOM LIKELY RESIDUAL 1 THROUGHOUT MOLECULAR REPLACEMENT 0.432 0.261 0.80 0.80 1.40 PDB ENTRY 1ZEQ MAXIMUM LIKELIHOOD MASK 2.33 44.24 18 601 1 0 582 0.011 0.022 592 1.569 1.953 801 6.955 5.000 74 49.605 26.364 22 18.720 15.000 112 37.916 15.000 1 0.112 0.200 97 0.005 0.020 420 0.252 0.200 218 0.304 0.200 401 0.107 0.200 22 0.198 0.200 15 0.323 0.200 3 0.482 1.500 382 0.722 2.000 616 1.111 3.000 228 1.759 4.500 185 0.4900 0.3050 2.39 8 255 20 2.33 44.00 2VB3 3624 2.0 0.06 1 26.40 6.7 99.9 0.21 2.33 2.46 6.90 1 7 100.0 refinement REFMAC 5.2.0019 data reduction MOSFLM data scaling SCALA phasing PHASER Crystal structure of Ag(I)CusF 1 N N 2 N N 3 N N METAL TRANSPORT CATION PI, METAL-BINDING, METAL TRANSPORT, COPPER TOLERANCE, COPPER TRANSPORT X PRO 13 A PRO 13 1 X GLN 14 A GLN 14 -2.40 CUSF_ECOLI UNP 1 P77214 23 110 2VB3 1 88 P77214 X 1 1 88 8 anti-parallel parallel parallel anti-parallel anti-parallel anti-parallel anti-parallel X ILE 16 A ILE 16 X ASP 26 A ASP 26 X LYS 67 A LYS 67 X GLN 75 A GLN 75 X LEU 78 A LEU 78 X VAL 86 A VAL 86 X MET 47 A MET 47 X THR 52 A THR 52 X LYS 31 A LYS 31 X HIS 36 A HIS 36 X ILE 16 A ILE 16 X ASP 26 A ASP 26 X LYS 67 A LYS 67 X GLN 75 A GLN 75 X ILE 16 A ILE 16 X ASP 26 A ASP 26 BINDING SITE FOR RESIDUE AG X1088 Software 4 X HIS 36 A HIS 36 4 1_555 X TRP 44 A TRP 44 4 1_555 X MET 47 A MET 47 4 1_555 X MET 49 A MET 49 4 1_555 19 P 21 21 21