0.00 -0.360 0.941 -2.200 A CA THR 7 ATOM A CA THR 1 7 1.00 1 C 0.00 0.085 -0.223 -1.315 A C THR 7 ATOM A C THR 1 7 1.00 1 C 0.00 0.492 -1.284 -1.812 A O THR 7 ATOM A O THR 1 7 1.00 1 O 0.00 0.000 0.000 0.000 A N ALA 8 ATOM A N ALA 1 8 1.00 1 N 0.00 0.389 -1.016 0.957 A CA ALA 8 ATOM A CA ALA 1 8 1.00 1 C 0.00 -0.592 -2.186 0.907 A C ALA 8 ATOM A C ALA 1 8 1.00 1 C 0.00 -0.344 -3.253 1.487 A O ALA 8 ATOM A O ALA 1 8 1.00 1 O 0.00 -0.339 0.884 0.375 A H ALA 8 ATOM A H ALA 1 8 1.00 1 H 0.00 -1.707 -1.957 0.203 A N ILE 9 ATOM A N ILE 1 9 1.00 1 N 0.00 -2.726 -2.977 0.071 A CA ILE 9 ATOM A CA ILE 1 9 1.00 1 C 0.00 -2.500 -3.779 -1.209 A C ILE 9 ATOM A C ILE 1 9 1.00 1 C 0.00 -2.971 -4.917 -1.341 A O ILE 9 ATOM A O ILE 1 9 1.00 1 O 0.00 -1.880 -1.066 -0.261 A H ILE 9 ATOM A H ILE 1 9 1.00 1 H 0.00 -1.769 -3.159 -2.142 A N SER 10 ATOM A N SER 1 10 1.00 1 N 0.00 -1.475 -3.800 -3.407 A CA SER 10 ATOM A CA SER 1 10 1.00 1 C 0.00 -0.471 -4.934 -3.196 A C SER 10 ATOM A C SER 1 10 1.00 1 C 0.00 -0.521 -5.966 -3.880 A O SER 10 ATOM A O SER 1 10 1.00 1 O 0.00 -1.396 -2.221 -2.002 A H SER 10 ATOM A H SER 1 10 1.00 1 H 0.00 0.436 -4.717 -2.238 A N VAL 11 ATOM A N VAL 1 11 1.00 1 N 0.00 1.449 -5.706 -1.930 A CA VAL 11 ATOM A CA VAL 1 11 1.00 1 C 0.00 0.792 -6.983 -1.406 A C VAL 11 ATOM A C VAL 1 11 1.00 1 C 0.00 1.234 -8.097 -1.708 A O VAL 11 ATOM A O VAL 1 11 1.00 1 O 0.00 0.448 -3.855 -1.694 A H VAL 11 ATOM A H VAL 1 11 1.00 1 H 0.00 -0.268 -6.793 -0.617 A N LEU 12 ATOM A N LEU 1 12 1.00 1 N 0.00 -0.988 -7.915 -0.048 A CA LEU 12 ATOM A CA LEU 1 12 1.00 1 C 0.00 -1.426 -8.871 -1.157 A C LEU 12 ATOM A C LEU 1 12 1.00 1 C 0.00 -1.260 -10.040 -1.075 A O LEU 12 ATOM A O LEU 1 12 1.00 1 O 0.00 -0.065 -5.862 -0.388 A H LEU 12 ATOM A H LEU 1 12 1.00 1 H 0.00 -1.985 -8.345 -2.190 A N LEU 13 ATOM A N LEU 1 13 1.00 1 N 0.00 -2.448 -9.137 -3.314 A CA LEU 13 ATOM A CA LEU 1 13 1.00 1 C 0.00 -1.289 -9.948 -3.894 A C LEU 13 ATOM A C LEU 1 13 1.00 1 C 0.00 -1.480 -11.064 -4.398 A O LEU 13 ATOM A O LEU 1 13 1.00 1 O 0.00 -2.108 -7.378 -2.227 A H LEU 13 ATOM A H LEU 1 13 1.00 1 H 0.00 -0.089 -9.359 -3.811 A N ALA 14 ATOM A N ALA 1 14 1.00 1 N 0.00 1.099 -10.012 -4.321 A CA ALA 14 ATOM A CA ALA 1 14 1.00 1 C 0.00 1.590 -11.062 -3.322 A C ALA 14 ATOM A C ALA 1 14 1.00 1 C 0.00 2.231 -12.052 -3.699 A O ALA 14 ATOM A O ALA 1 14 1.00 1 O 0.00 0.032 -8.439 -3.390 A H ALA 14 ATOM A H ALA 1 14 1.00 1 H 0.00 1.272 -10.818 -2.044 A N GLN 15 ATOM A N GLN 1 15 1.00 1 N 0.00 1.671 -11.728 -0.988 A CA GLN 15 ATOM A CA GLN 1 15 1.00 1 C 0.00 0.813 -12.992 -1.034 A C GLN 15 ATOM A C GLN 1 15 1.00 1 C 0.00 1.327 -14.114 -1.007 A O GLN 15 ATOM A O GLN 1 15 1.00 1 O 0.00 0.741 -9.993 -1.767 A H GLN 15 ATOM A H GLN 1 15 1.00 1 H 0.00 -0.502 -12.781 -1.104 A N ALA 16 ATOM A N ALA 1 16 1.00 1 N 0.00 -1.437 -13.889 -1.154 A CA ALA 16 ATOM A CA ALA 1 16 1.00 1 C 0.00 -1.343 -14.591 -2.510 A C ALA 16 ATOM A C ALA 1 16 1.00 1 C 0.00 -1.864 -15.702 -2.690 A O ALA 16 ATOM A O ALA 1 16 1.00 1 O 0.00 -0.894 -11.844 -1.125 A H ALA 16 ATOM A H ALA 1 16 1.00 1 H 0.00 -0.669 -13.918 -3.451 A N VAL 17 ATOM A N VAL 1 17 1.00 1 N 0.00 -0.501 -14.465 -4.783 A CA VAL 17 ATOM A CA VAL 1 17 1.00 1 C 0.00 0.619 -15.504 -4.784 A C VAL 17 ATOM A C VAL 1 17 1.00 1 C 0.00 0.488 -16.586 -5.376 A O VAL 17 ATOM A O VAL 1 17 1.00 1 O 0.00 -0.252 -13.006 -3.269 A H VAL 17 ATOM A H VAL 1 17 1.00 1 H 0.00 1.720 -15.149 -4.109 A N PHE 18 ATOM A N PHE 1 18 1.00 1 N 0.00 2.864 -16.036 -4.026 A CA PHE 18 ATOM A CA PHE 1 18 1.00 1 C 0.00 2.470 -17.334 -3.319 A C PHE 18 ATOM A C PHE 1 18 1.00 1 C 0.00 2.741 -18.434 -3.806 A O PHE 18 ATOM A O PHE 1 18 1.00 1 O 0.00 1.796 -14.250 -3.633 A H PHE 18 ATOM A H PHE 1 18 1.00 1 H 0.00 1.824 -17.176 -2.164 A N LEU 19 ATOM A N LEU 1 19 1.00 1 N 0.00 1.390 -18.320 -1.386 A CA LEU 19 ATOM A CA LEU 1 19 1.00 1 C 0.00 0.495 -19.222 -2.237 A C LEU 19 ATOM A C LEU 1 19 1.00 1 C 0.00 0.551 -20.395 -2.184 A O LEU 19 ATOM A O LEU 1 19 1.00 1 O 0.00 1.617 -16.257 -1.791 A H LEU 19 ATOM A H LEU 1 19 1.00 1 H 0.00 -0.326 -18.647 -3.018 A N LEU 20 ATOM A N LEU 1 20 1.00 1 N 0.00 -1.231 -19.383 -3.879 A CA LEU 20 ATOM A CA LEU 1 20 1.00 1 C 0.00 -0.446 -20.069 -4.998 A C LEU 20 ATOM A C LEU 1 20 1.00 1 C 0.00 -0.758 -21.201 -5.396 A O LEU 20 ATOM A O LEU 1 20 1.00 1 O 0.00 -0.347 -17.678 -3.038 A H LEU 20 ATOM A H LEU 1 20 1.00 1 H 0.00 0.575 -19.356 -5.492 A N LEU 21 ATOM A N LEU 1 21 1.00 1 N 0.00 1.405 -19.882 -6.557 A CA LEU 21 ATOM A CA LEU 1 21 1.00 1 C 0.00 0.805 -18.427 -5.142 A H LEU 21 ATOM A H LEU 1 21 1.00 1 H 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Marassi, F.M. Gesell, J.J. Kim, Y. Valente, A.P. Oblatt-Montal, M. Montal, M. Opella, 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 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 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 C3 H7 N O3 105.093 y SERINE L-peptide linking C4 H9 N O3 119.119 y THREONINE 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 R C N 43 N C N 44 N O N 45 N C N 46 N S N 47 N O N 48 N H N 49 N H N 50 N H N 51 N H N 52 N H N 53 N H N 54 N H N 55 N N N 56 S C N 57 N C N 58 N O N 59 N C N 60 N C N 61 N C N 62 N O N 63 N N N 64 N O N 65 N H N 66 N H 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 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 O 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 N N 95 N C N 96 N C N 97 N O 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 N N 105 S C N 106 N C N 107 N O N 108 S C N 109 N C N 110 N C N 111 N C N 112 N O N 113 N H N 114 N H N 115 N H N 116 N H N 117 N H 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 N N 127 S C N 128 N C N 129 N O N 130 N 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 N N 157 N O 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 H N 171 N H N 172 N H N 173 N N N 174 S C N 175 N C N 176 N O N 177 N C N 178 N C N 179 N S N 180 N C N 181 N O 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 N N 194 S C N 195 N C N 196 N O N 197 N C Y 198 N C Y 199 N C Y 200 N C Y 201 N C Y 202 N C Y 203 N C N 204 N O 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 N N 217 S C N 218 N C N 219 N O N 220 N C N 221 N O N 222 N O 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 O N 234 R C N 235 N O N 236 N C N 237 N O N 238 N H N 239 N H 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 N N 248 S C N 249 N C N 250 N O N 251 N C N 252 N C N 253 N C N 254 N O 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 H N 265 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 sing 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 doub N 59 N sing N 60 N sing N 61 N sing 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 sing N 77 N doub 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 doub 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 sing N 104 N doub 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 sing 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 sing N 125 N doub 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 sing N 146 N doub 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 sing N 167 N sing N 168 N sing N 169 N sing N 170 N doub 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 doub N 190 N sing N 191 N sing N 192 N sing N 193 N sing Y 194 N doub Y 195 N sing Y 196 N sing N 197 N sing Y 198 N doub N 199 N sing Y 200 N doub N 201 N sing Y 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 doub 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 doub 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 doub 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 US Nat.Struct.Biol. NSBIEW 2024 1072-8368 6 374 379 10.1038/7610 10201407 Structures of the M2 channel-lining segments from nicotinic acetylcholine and NMDA receptors by NMR spectroscopy. 1999 To be Published 0353 Dilute Spin-Exchange Assignment of Solid-State NMR Spectra of Oriented Proteins: Acetylcholine Receptor M2 Peptide in Bilayers 10.2210/pdb1cek/pdb pdb_00001cek 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 2666.143 PROTEIN (ACETYLCHOLINE RECEPTOR M2) M2 DOMAIN 1 man polymer ACHR M2 no no GSEKMSTAISVLLAQAVFLLLTSQR GSEKMSTAISVLLAQAVFLLLTSQR 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 Norway rat Rattus Escherichia Escherichia coli sample NEURON POST-SYNAPTIC MEMBRANE 10116 BRAIN Rattus norvegicus 511693 Escherichia coli BL21 BL21 BACTERIAL PGEX FUSION database_2 pdbx_struct_assembly pdbx_struct_oper_list struct_ref_seq_dif chem_comp_atom chem_comp_bond repository Initial release Version format compliance Version format compliance Database references Derived calculations Data collection 1 0 1999-03-11 1 1 2008-04-26 1 2 2011-07-13 1 3 2022-02-16 1 4 2023-12-27 _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_ref_seq_dif.details BNL Y RCSB 1999-03-09 REL LOWEST ENERGY. SAMPLE: DMPC BILAYERS ORIENTED ON GLASS SLIDES 15N CHEMICAL SHIFT, 1H CHEMICAL SHIFT AND 1H-15N DIPOLAR COUPLING FREQUENCIES WERE MEASURED FROM PISEMA AND LOWEST ENERGY 24 1 15N SHIFT/1H-15N DIPOLAR COUPLING PISEMA 15N SHIFT/15N SHIFT HETCOR 1H SHIFT/15N SHIFT/1H-15N DIPOLAR COUPLING CORRELATION 6.0 295 K ORIENTATIONAL CONSTRAINTS DMPC structure solution FISI structure solution BACKTOR structure solution RESTRICT refinement RESTRICT 400 Home-built HOMEBUILT 550 CHEMAGNETICS CMX400 n 1 1 A n 2 2 A n 3 3 A n 4 4 A n 5 5 A n 6 6 A THR 7 n 7 THR 7 A ALA 8 n 8 ALA 8 A ILE 9 n 9 ILE 9 A SER 10 n 10 SER 10 A VAL 11 n 11 VAL 11 A LEU 12 n 12 LEU 12 A LEU 13 n 13 LEU 13 A ALA 14 n 14 ALA 14 A GLN 15 n 15 GLN 15 A ALA 16 n 16 ALA 16 A VAL 17 n 17 VAL 17 A PHE 18 n 18 PHE 18 A LEU 19 n 19 LEU 19 A LEU 20 n 20 LEU 20 A LEU 21 n 21 LEU 21 A n 22 22 A n 23 23 A n 24 24 A n 25 25 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 N THR 7 A N THR 7 1 Y 1 A CB THR 7 A CB THR 7 1 Y 1 A OG1 THR 7 A OG1 THR 7 1 Y 1 A CG2 THR 7 A CG2 THR 7 1 Y 1 A CB ALA 8 A CB ALA 8 1 Y 1 A CB ILE 9 A CB ILE 9 1 Y 1 A CG1 ILE 9 A CG1 ILE 9 1 Y 1 A CG2 ILE 9 A CG2 ILE 9 1 Y 1 A CD1 ILE 9 A CD1 ILE 9 1 Y 1 A CB SER 10 A CB SER 10 1 Y 1 A OG SER 10 A OG SER 10 1 Y 1 A CB VAL 11 A CB VAL 11 1 Y 1 A CG1 VAL 11 A CG1 VAL 11 1 Y 1 A CG2 VAL 11 A CG2 VAL 11 1 Y 1 A CB LEU 12 A CB LEU 12 1 Y 1 A CG LEU 12 A CG LEU 12 1 Y 1 A CD1 LEU 12 A CD1 LEU 12 1 Y 1 A CD2 LEU 12 A CD2 LEU 12 1 Y 1 A CB LEU 13 A CB LEU 13 1 Y 1 A CG LEU 13 A CG LEU 13 1 Y 1 A CD1 LEU 13 A CD1 LEU 13 1 Y 1 A CD2 LEU 13 A CD2 LEU 13 1 Y 1 A CB ALA 14 A CB ALA 14 1 Y 1 A CB GLN 15 A CB GLN 15 1 Y 1 A CG GLN 15 A CG GLN 15 1 Y 1 A CD GLN 15 A CD GLN 15 1 Y 1 A OE1 GLN 15 A OE1 GLN 15 1 Y 1 A NE2 GLN 15 A NE2 GLN 15 1 Y 1 A CB ALA 16 A CB ALA 16 1 Y 1 A CB VAL 17 A CB VAL 17 1 Y 1 A CG1 VAL 17 A CG1 VAL 17 1 Y 1 A CG2 VAL 17 A CG2 VAL 17 1 Y 1 A CB PHE 18 A CB PHE 18 1 Y 1 A CG PHE 18 A CG PHE 18 1 Y 1 A CD1 PHE 18 A CD1 PHE 18 1 Y 1 A CD2 PHE 18 A CD2 PHE 18 1 Y 1 A CE1 PHE 18 A CE1 PHE 18 1 Y 1 A CE2 PHE 18 A CE2 PHE 18 1 Y 1 A CZ PHE 18 A CZ PHE 18 1 Y 1 A CB LEU 19 A CB LEU 19 1 Y 1 A CG LEU 19 A CG LEU 19 1 Y 1 A CD1 LEU 19 A CD1 LEU 19 1 Y 1 A CD2 LEU 19 A CD2 LEU 19 1 Y 1 A CB LEU 20 A CB LEU 20 1 Y 1 A CG LEU 20 A CG LEU 20 1 Y 1 A CD1 LEU 20 A CD1 LEU 20 1 Y 1 A CD2 LEU 20 A CD2 LEU 20 1 Y 1 A C LEU 21 A C LEU 21 1 Y 1 A O LEU 21 A O LEU 21 1 Y 1 A CB LEU 21 A CB LEU 21 1 Y 1 A CG LEU 21 A CG LEU 21 1 Y 1 A CD1 LEU 21 A CD1 LEU 21 1 Y 1 A CD2 LEU 21 A CD2 LEU 21 1 Y 1 A GLY 1 A GLY 1 1 Y 1 A SER 2 A SER 2 1 Y 1 A GLU 3 A GLU 3 1 Y 1 A LYS 4 A LYS 4 1 Y 1 A MET 5 A MET 5 1 Y 1 A SER 6 A SER 6 1 Y 1 A THR 22 A THR 22 1 Y 1 A SER 23 A SER 23 1 Y 1 A GLN 24 A GLN 24 1 Y 1 A ARG 25 A ARG 25 1 Y THREE-DIMENSIONAL STRUCTURE OF THE MEMBRANE-EMBEDDED M2 CHANNEL-LINING SEGMENT FROM THE NICOTINIC ACETYLCHOLINE RECEPTOR BY SOLID-STATE NMR SPECTROSCOPY 1 N N A THR 7 A THR 7 HELX_P SEE REMARK 650 A LEU 21 A LEU 21 1 1 15 ACETYLCHOLINE RECEPTOR ACETYLCHOLINE RECEPTOR, M2, LIPID BILAYERS, ION-CHANNEL ACHD_RAT UNP 1 P25110 274 298 1CEK 1 25 P25110 A 1 1 25 1 CYS cloning artifact GLY 1 1CEK A P25110 UNP 274 1 1 GLY cloning artifact SER 2 1CEK A P25110 UNP 275 2 1 THR conflict MET 5 1CEK A P25110 UNP 278 5 1 VAL conflict THR 7 1CEK A P25110 UNP 280 7 1 SER conflict ALA 16 1CEK A P25110 UNP 289 16 1 ILE conflict THR 22 1CEK A P25110 UNP 295 22 1 LYS conflict GLN 24 1CEK A P25110 UNP 297 24 1 P 1