1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Samson, A.O. Scherf, T. Eisenstein, M. Chill, J.H. Anglister, 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 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 US Neuron NERNET 2038 0896-6273 35 319 332 10.1016/S0896-6273(02)00773-0 12160749 The mechanism for acetylcholine receptor inhibition by alpha-neurotoxins and species-specific resistance to alpha-bungarotoxin revealed by NMR. 2002 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 1 SINGLE WAVELENGTH M x-ray 1 1.0 8005.281 alpha-Bungarotoxin 1 nat polymer 3137.432 Acetylcholine receptor protein Acetylcholine receptor peptide (residues 182-202) 1 syn polymer Long Neurotoxin 1, Alpha-BTX, BGTX AChR no no IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG A polypeptide(L) no no EERGWKHWVYYTCCPDTPYLDITEE EERGWKHWVYYTCCPDTPYLDITEE B 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 many-banded krait Bungarus sample 8616 Bungarus multicinctus venom Banded krait repository Initial release Version format compliance Version format compliance Other 1 0 2002-07-17 1 1 2008-04-28 1 2 2011-07-13 1 3 2013-07-24 NMR structure of an AChR-peptide (Torpedo Californica, alpha-subunit residues 182-202) in complex with alpha-Bungarotoxin RCSB Y RCSB 2002-04-23 REL REL synthesized peptide sample This structure was determined using standard 2D homonuclear techniques structures with the lowest energy 100 19 2D TOCSY 2D NOESY 2D NOESY DQF-COSY 2D TOCSY 50 mM NH4Ac 4 ambient 298 K 50 mM NH4Ac 4 ambient 298 K distance geometry simulated annealing energy minimization acetylcholine receptor peptide/alpha-bungarotoxin 90% H2O/10% D2O acetylcholine receptor peptide/alpha-bungarotoxin 100% D2O brunger refinement CNS 1 brunger structure solution CNS 1 bruker data analysis XWINNMR 3 neidig data analysis AURELIA 2.8.11 800 Bruker DRX 500 Bruker DMX ILE 1 n 1 ILE 1 A VAL 2 n 2 VAL 2 A CYS 3 n 3 CYS 3 A HIS 4 n 4 HIS 4 A THR 5 n 5 THR 5 A THR 6 n 6 THR 6 A ALA 7 n 7 ALA 7 A THR 8 n 8 THR 8 A SER 9 n 9 SER 9 A PRO 10 n 10 PRO 10 A ILE 11 n 11 ILE 11 A SER 12 n 12 SER 12 A ALA 13 n 13 ALA 13 A VAL 14 n 14 VAL 14 A THR 15 n 15 THR 15 A CYS 16 n 16 CYS 16 A PRO 17 n 17 PRO 17 A PRO 18 n 18 PRO 18 A GLY 19 n 19 GLY 19 A GLU 20 n 20 GLU 20 A ASN 21 n 21 ASN 21 A LEU 22 n 22 LEU 22 A CYS 23 n 23 CYS 23 A TYR 24 n 24 TYR 24 A ARG 25 n 25 ARG 25 A LYS 26 n 26 LYS 26 A MET 27 n 27 MET 27 A TRP 28 n 28 TRP 28 A CYS 29 n 29 CYS 29 A ASP 30 n 30 ASP 30 A ALA 31 n 31 ALA 31 A PHE 32 n 32 PHE 32 A CYS 33 n 33 CYS 33 A SER 34 n 34 SER 34 A SER 35 n 35 SER 35 A ARG 36 n 36 ARG 36 A GLY 37 n 37 GLY 37 A LYS 38 n 38 LYS 38 A VAL 39 n 39 VAL 39 A VAL 40 n 40 VAL 40 A GLU 41 n 41 GLU 41 A LEU 42 n 42 LEU 42 A GLY 43 n 43 GLY 43 A CYS 44 n 44 CYS 44 A ALA 45 n 45 ALA 45 A ALA 46 n 46 ALA 46 A THR 47 n 47 THR 47 A CYS 48 n 48 CYS 48 A PRO 49 n 49 PRO 49 A SER 50 n 50 SER 50 A LYS 51 n 51 LYS 51 A LYS 52 n 52 LYS 52 A PRO 53 n 53 PRO 53 A TYR 54 n 54 TYR 54 A GLU 55 n 55 GLU 55 A GLU 56 n 56 GLU 56 A VAL 57 n 57 VAL 57 A THR 58 n 58 THR 58 A CYS 59 n 59 CYS 59 A CYS 60 n 60 CYS 60 A SER 61 n 61 SER 61 A THR 62 n 62 THR 62 A ASP 63 n 63 ASP 63 A LYS 64 n 64 LYS 64 A CYS 65 n 65 CYS 65 A ASN 66 n 66 ASN 66 A PRO 67 n 67 PRO 67 A HIS 68 n 68 HIS 68 A PRO 69 n 69 PRO 69 A LYS 70 n 70 LYS 70 A GLN 71 n 71 GLN 71 A ARG 72 n 72 ARG 72 A PRO 73 n 73 PRO 73 A GLY 74 n 74 GLY 74 A GLU 180 n 1 GLU 180 B GLU 181 n 2 GLU 181 B ARG 182 n 3 ARG 182 B GLY 183 n 4 GLY 183 B TRP 184 n 5 TRP 184 B LYS 185 n 6 LYS 185 B HIS 186 n 7 HIS 186 B TRP 187 n 8 TRP 187 B VAL 188 n 9 VAL 188 B TYR 189 n 10 TYR 189 B TYR 190 n 11 TYR 190 B THR 191 n 12 THR 191 B CYS 192 n 13 CYS 192 B CYS 193 n 14 CYS 193 B PRO 194 n 15 PRO 194 B ASP 195 n 16 ASP 195 B THR 196 n 17 THR 196 B PRO 197 n 18 PRO 197 B TYR 198 n 19 TYR 198 B LEU 199 n 20 LEU 199 B ASP 200 n 21 ASP 200 B ILE 201 n 22 ILE 201 B THR 202 n 23 THR 202 B GLU 203 n 24 GLU 203 B GLU 204 n 25 GLU 204 B author_defined_assembly 2 dimeric 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 N THR 5 A N THR 5 A O SER 12 A O SER 12 A O ALA 45 A O ALA 45 A N LEU 22 A N LEU 22 A N CYS 23 A N CYS 23 A O CYS 60 A O CYS 60 A N ASP 30 A N ASP 30 A O GLY 37 A O GLY 37 B N HIS 186 B N HIS 7 B O ASP 200 B O ASP 21 1 A A O H ALA SER 31 35 1.59 1 A A O N ALA SER 31 35 2.03 2 A B O HA LYS TYR 38 190 1.55 2 A A O N ALA SER 31 35 1.98 3 A A OG1 H THR SER 8 9 1.42 3 A A O N ALA SER 31 35 2.02 4 A A O N ALA SER 31 35 1.97 4 A A O O ASP GLY 30 37 2.09 4 A B O N ALA HIS 7 186 2.09 5 A A OG1 H THR SER 8 9 1.43 5 A A O N ALA SER 31 35 1.99 5 A B O N ALA HIS 7 186 2.14 5 B B O O HIS ASP 186 200 2.18 6 A A O N ALA SER 31 35 2.06 6 A B O N ALA HIS 7 186 2.09 7 A A O N ALA SER 31 35 1.95 7 A A O O ASP GLY 30 37 2.07 8 A B O H ALA HIS 7 186 1.57 8 A B O N ALA HIS 7 186 2.06 8 A A O N ALA SER 31 35 2.10 8 A A O O ASP GLY 30 37 2.10 9 A B O H ALA HIS 7 186 1.55 9 A A O N ALA SER 31 35 1.99 9 A B O N ALA HIS 7 186 2.03 10 A A H OD1 HIS ASN 4 66 1.58 10 A A OG1 H THR SER 8 9 1.59 10 A A O N ALA SER 31 35 2.05 10 A A O O ASP GLY 30 37 2.17 11 A A O H LYS TYR 52 54 1.50 11 A A O N ALA SER 31 35 2.02 11 A A O O ASP GLY 30 37 2.08 12 A A O N ALA SER 31 35 2.02 12 A B O N ALA HIS 7 186 2.09 12 A A O O ASP GLY 30 37 2.16 13 A B O N ALA HIS 7 186 2.06 13 A A O N ALA SER 31 35 2.09 13 B B O O HIS ASP 186 200 2.15 13 A A O O ASP GLY 30 37 2.18 14 A A O N ALA SER 31 35 2.04 14 A B O N ALA HIS 7 186 2.13 14 A A O O ASP GLY 30 37 2.17 15 A A O H CYS SER 48 50 1.49 15 A A O N ALA SER 31 35 2.04 15 A B O N ALA HIS 7 186 2.12 15 A A O O ASP GLY 30 37 2.14 16 A B O H ALA HIS 7 186 1.57 16 A A O O ASP GLY 30 37 2.05 16 A A O N ALA SER 31 35 2.06 16 A B O N ALA HIS 7 186 2.11 17 A A OG1 H THR SER 8 9 1.56 17 A A O N ALA SER 31 35 2.01 17 A B O N ALA HIS 7 186 2.09 18 A A O N ALA SER 31 35 2.18 19 A B O H ALA HIS 7 186 1.57 19 A B O N ALA HIS 7 186 2.01 19 A A O N ALA SER 31 35 2.02 19 A A O O ASP GLY 30 37 2.06 1 A ALA 7 -130.69 -48.25 1 A THR 8 -90.35 -136.52 1 A PRO 18 -51.95 -167.58 1 A TRP 28 -145.25 -149.26 1 A ALA 31 96.57 -11.91 1 A SER 34 -91.80 -80.00 1 A SER 35 -141.06 -52.54 1 A ARG 36 -79.31 -91.47 1 A TYR 54 177.92 -32.32 1 A SER 61 -109.33 63.01 1 A ASN 66 -105.13 59.82 1 A PRO 73 -54.51 88.43 1 B TRP 184 -119.45 -162.22 1 B CYS 192 157.82 -46.38 1 B THR 196 -140.09 50.43 1 B GLU 203 -69.89 -76.20 2 A ALA 7 75.54 122.06 2 A THR 8 -38.27 -26.17 2 A SER 9 -102.09 -101.90 2 A VAL 14 -108.00 -166.70 2 A PRO 18 -65.21 -161.96 2 A ARG 25 -116.37 77.41 2 A TRP 28 -153.39 -135.47 2 A ALA 31 93.12 -23.25 2 A SER 34 -91.29 -78.72 2 A SER 35 -142.03 -49.85 2 A ARG 36 -75.62 -91.40 2 A CYS 48 -39.45 133.96 2 A LYS 64 39.69 42.90 2 A ASN 66 -110.02 54.61 2 B ARG 182 -107.26 61.35 2 B TRP 184 -106.39 -169.58 2 B VAL 188 -162.54 88.72 2 B CYS 192 152.58 -47.05 2 B ASP 195 -96.43 44.85 2 B ILE 201 -113.90 -164.95 2 B GLU 203 -115.49 -79.37 3 A THR 5 -171.23 149.48 3 A ALA 7 -148.27 -52.45 3 A THR 8 -68.88 -148.78 3 A PRO 18 -61.89 -161.99 3 A ASN 21 -150.38 17.16 3 A TRP 28 -142.37 -159.11 3 A ALA 31 93.73 -28.42 3 A SER 34 -91.45 -77.68 3 A SER 35 -141.40 -51.63 3 A ARG 36 -74.89 -91.46 3 A THR 47 -156.82 59.61 3 A CYS 48 -39.82 98.36 3 A PRO 49 -63.50 -163.36 3 A TYR 54 166.90 -11.20 3 A ASN 66 -109.96 69.74 3 A PRO 69 -78.58 -71.21 3 A ARG 72 117.22 -30.95 3 B GLU 181 -156.19 32.78 3 B TRP 184 -118.89 -166.02 3 B VAL 188 -164.58 92.42 3 B CYS 192 148.82 -45.36 3 B ASP 200 -170.11 115.10 3 B ILE 201 -132.82 -44.14 4 A ALA 7 -162.26 -42.35 4 A THR 8 -69.05 -146.37 4 A PRO 10 -101.85 -166.50 4 A LEU 22 -107.88 -168.55 4 A ALA 31 96.39 -32.72 4 A SER 34 -91.45 -75.37 4 A SER 35 -141.58 -53.52 4 A ARG 36 -71.51 -89.47 4 A THR 47 -170.08 49.11 4 A LYS 52 -39.56 158.97 4 A ASP 63 -39.83 117.94 4 A ASN 66 -109.57 73.43 4 A ARG 72 -161.80 -64.04 4 A PRO 73 -74.83 -106.81 4 B GLU 181 -134.23 -148.86 4 B ARG 182 66.46 63.30 4 B VAL 188 -164.69 87.00 4 B CYS 192 138.56 -48.88 4 B ASP 195 -92.28 42.78 4 B ILE 201 -166.43 37.79 4 B THR 202 -160.00 52.43 4 B GLU 203 -104.32 67.36 5 A ALA 7 -158.31 -49.46 5 A THR 8 -66.67 -146.71 5 A PRO 18 -55.19 -174.01 5 A TRP 28 -146.93 -154.17 5 A ALA 31 93.97 -24.85 5 A SER 34 -91.51 -77.88 5 A SER 35 -141.61 -51.84 5 A ARG 36 -74.11 -92.35 5 A PRO 49 -49.86 77.93 5 A PRO 53 -36.63 -31.55 5 A TYR 54 -122.83 -55.61 5 A SER 61 -107.94 63.49 5 A ASP 63 -39.82 110.88 5 A ASN 66 -108.93 73.46 5 A PRO 69 -69.22 -71.78 5 A ARG 72 117.88 -30.79 5 A PRO 73 -86.99 48.51 5 B GLU 181 -145.58 30.55 5 B TRP 184 -87.95 -118.62 5 B VAL 188 -162.81 92.01 5 B CYS 192 141.50 -38.47 5 B ASP 195 -155.27 27.81 5 B THR 196 -140.12 52.56 5 B ILE 201 -133.67 -32.45 5 B THR 202 -69.73 85.52 6 A ALA 7 -154.70 -35.91 6 A THR 8 -90.17 -140.04 6 A TRP 28 -140.06 -138.70 6 A ALA 31 97.64 -25.08 6 A SER 34 -91.67 -72.93 6 A SER 35 -140.26 -58.68 6 A ARG 36 -87.76 -76.45 6 A THR 47 -164.36 96.55 6 A PRO 49 -102.81 50.57 6 A LYS 51 -90.55 53.80 6 A LYS 52 -53.51 -175.89 6 A PRO 53 -36.32 -24.47 6 A TYR 54 172.22 49.88 6 A VAL 57 -170.10 110.13 6 A SER 61 -111.64 58.82 6 A ASN 66 -107.95 74.09 6 A GLN 71 -109.66 -155.28 6 A ARG 72 179.07 -52.21 6 B VAL 188 -169.09 90.96 6 B CYS 192 137.59 -49.02 6 B THR 196 -114.25 61.29 6 B ASP 200 -166.50 92.33 7 A ALA 7 -154.63 -41.62 7 A THR 8 -85.63 -137.42 7 A PRO 18 -62.31 -169.10 7 A TRP 28 -143.61 -157.52 7 A ALA 31 94.52 -34.36 7 A SER 34 -91.47 -76.45 7 A SER 35 -141.90 -49.92 7 A ARG 36 -70.03 -90.61 7 A CYS 48 -39.34 145.91 7 A PRO 49 -55.50 -162.96 7 A LYS 51 -90.59 -105.21 7 A TYR 54 -172.70 -33.46 7 A SER 61 -104.47 58.92 7 A ASP 63 -39.89 114.44 7 A ASN 66 -113.74 75.18 7 A PRO 67 -90.53 -149.22 7 A ARG 72 79.31 31.94 7 B GLU 181 -155.23 -41.11 7 B ARG 182 65.54 -174.47 7 B TRP 184 -107.52 -163.20 7 B VAL 188 -162.15 87.65 7 B CYS 192 147.54 -38.17 8 A THR 5 -170.58 149.44 8 A ALA 7 -161.61 -44.38 8 A THR 8 -70.87 -147.65 8 A GLU 20 -170.30 123.82 8 A TRP 28 -128.42 -159.92 8 A ALA 31 92.49 -32.37 8 A SER 34 -91.62 -75.88 8 A SER 35 -141.57 -49.14 8 A ARG 36 -78.04 -90.49 8 A THR 47 -153.71 48.85 8 A LYS 64 35.42 44.27 8 A ASN 66 -110.09 70.03 8 A PRO 69 -95.06 -60.68 8 A GLN 71 -78.86 -79.37 8 A ARG 72 -6.78 -67.98 8 B ARG 182 -61.95 94.93 8 B TRP 184 -113.14 -117.10 8 B CYS 192 112.38 -38.56 8 B ASP 195 -96.23 31.11 9 A ALA 7 -161.33 -47.36 9 A THR 8 -78.16 -140.82 9 A PRO 10 -105.45 -167.09 9 A PRO 18 -70.57 46.51 9 A GLU 20 -170.53 148.49 9 A MET 27 -170.54 139.25 9 A TRP 28 -133.24 -157.56 9 A ALA 31 95.81 -21.33 9 A SER 34 -91.34 -77.05 9 A SER 35 -141.60 -53.85 9 A ARG 36 -69.92 -93.43 9 A CYS 48 -39.93 99.80 9 A SER 50 -59.65 90.72 9 A TYR 54 -161.12 -38.23 9 A SER 61 -107.84 64.67 9 A ASP 63 -39.40 108.02 9 A ASN 66 -107.32 69.20 9 A ARG 72 -151.13 -63.49 9 B TRP 184 -68.43 -112.47 9 B CYS 192 156.85 -45.38 10 A HIS 4 -115.75 76.46 10 A ALA 7 -153.89 -50.62 10 A THR 8 -72.66 -142.08 10 A PRO 17 -57.67 171.25 10 A ALA 31 90.21 -31.97 10 A SER 34 -91.48 -76.86 10 A SER 35 -141.48 -50.79 10 A ARG 36 -74.79 -91.02 10 A THR 47 -150.27 82.40 10 A CYS 48 -39.95 97.27 10 A PRO 49 -69.37 -162.89 10 A TYR 54 163.55 -14.31 10 A SER 61 -144.57 22.87 10 A LYS 64 37.15 54.87 10 A ASN 66 -113.83 73.75 10 A ARG 72 115.14 -31.19 10 B ARG 182 62.11 162.66 10 B TRP 184 -70.51 -112.86 10 B CYS 192 88.81 -55.73 10 B ASP 200 -160.04 107.07 10 B ILE 201 -157.71 -47.29 10 B GLU 203 -145.16 -77.56 11 A ALA 7 -161.24 -48.52 11 A THR 8 -63.31 -148.94 11 A PRO 10 -90.87 -155.07 11 A PRO 18 -68.40 -168.64 11 A ALA 31 90.73 -36.55 11 A SER 34 -91.78 -75.16 11 A SER 35 -141.34 -50.50 11 A ARG 36 -74.77 -90.48 11 A LYS 51 -89.42 40.70 11 A PRO 53 -59.95 40.55 11 A SER 61 -107.36 65.45 11 A ASP 63 -39.53 108.22 11 A ASN 66 -111.15 62.65 11 A ARG 72 166.50 -35.92 11 B TRP 184 -50.79 179.68 11 B VAL 188 -160.95 90.76 11 B CYS 192 115.26 -42.78 11 B ASP 195 -94.33 39.54 11 B ILE 201 -136.03 -139.20 12 A ALA 7 -162.12 -36.74 12 A THR 8 -79.23 -148.25 12 A PRO 10 -101.72 -164.20 12 A PRO 18 -60.51 -164.68 12 A ALA 31 93.73 -27.90 12 A SER 34 -91.58 -76.71 12 A SER 35 -141.49 -50.83 12 A ARG 36 -78.77 -90.34 12 A CYS 48 -38.81 119.51 12 A LYS 51 -90.83 -109.98 12 A PRO 53 -19.19 -41.90 12 A TYR 54 -140.64 -43.97 12 A ASP 63 -39.86 117.93 12 A LYS 64 36.19 54.12 12 A PRO 67 -39.90 158.85 12 A ARG 72 -114.41 -70.32 12 B ARG 182 62.75 124.58 12 B VAL 188 -161.40 95.17 12 B CYS 192 149.39 -38.71 12 B THR 196 -140.02 50.27 12 B ILE 201 -144.81 -159.16 12 B THR 202 -90.67 30.15 12 B GLU 203 -69.96 74.10 13 A ALA 7 -159.08 -38.10 13 A THR 8 -76.46 -141.92 13 A TRP 28 -141.53 -158.22 13 A ALA 31 98.55 -23.09 13 A SER 34 -91.78 -72.00 13 A SER 35 -140.38 -60.88 13 A ARG 36 -80.50 -82.79 13 A THR 47 -157.86 86.39 13 A PRO 53 -65.97 71.59 13 A TYR 54 -176.47 -39.34 13 A SER 61 -146.31 33.53 13 A ASN 66 -110.51 68.92 13 A ARG 72 99.71 -66.46 13 B ARG 182 -56.67 108.96 13 B TRP 184 -107.04 -98.29 13 B VAL 188 -163.42 87.71 13 B CYS 192 124.42 -39.08 13 B THR 196 -140.07 57.49 13 B ASP 200 -170.44 130.33 13 B ILE 201 -131.40 -95.05 14 A ALA 7 -156.59 -35.65 14 A THR 8 -89.92 -137.15 14 A ASN 21 -164.76 25.92 14 A ALA 31 92.12 -31.18 14 A SER 34 -91.43 -77.11 14 A SER 35 -141.38 -50.05 14 A ARG 36 -76.11 -90.76 14 A THR 47 -164.05 43.15 14 A CYS 48 -39.46 98.61 14 A SER 50 -50.39 87.32 14 A TYR 54 -161.02 -40.06 14 A CYS 60 -129.36 -167.71 14 A SER 61 -151.44 12.61 14 A LYS 64 44.45 28.59 14 A ASN 66 -106.10 65.02 14 A ARG 72 174.86 -53.13 14 B TRP 184 -106.18 -161.88 14 B VAL 188 -166.78 87.31 14 B CYS 192 145.56 -39.79 14 B ASP 200 -166.06 117.92 14 B ILE 201 -158.85 29.31 15 A ALA 7 -161.56 -40.61 15 A THR 8 -77.33 -148.23 15 A PRO 18 -64.72 -87.98 15 A GLU 20 -68.68 99.75 15 A ALA 31 92.09 -30.61 15 A SER 34 -91.50 -76.14 15 A SER 35 -141.37 -51.66 15 A ARG 36 -75.29 -91.14 15 A PRO 49 -58.86 54.54 15 A SER 50 -91.39 46.12 15 A LYS 51 -39.99 116.51 15 A PRO 53 -80.29 34.61 15 A TYR 54 168.86 -17.38 15 A SER 61 -114.39 62.04 15 A ASN 66 -107.40 76.62 15 A PRO 69 -69.71 -71.97 15 A GLN 71 -74.72 -135.41 15 A ARG 72 75.57 171.55 15 A PRO 73 -42.77 82.71 15 B GLU 181 -170.01 71.66 15 B ARG 182 69.22 -65.38 15 B CYS 192 151.13 -43.33 15 B ILE 201 -141.15 -88.25 15 B THR 202 -165.32 33.31 16 A ALA 7 -162.62 -38.13 16 A THR 8 -75.35 -143.44 16 A PRO 10 -101.79 -164.93 16 A PRO 18 -66.68 63.19 16 A GLU 20 -69.29 95.03 16 A ASN 21 -92.56 38.02 16 A TRP 28 -123.79 -161.00 16 A ALA 31 96.37 -29.63 16 A SER 34 -91.70 -75.31 16 A SER 35 -141.42 -50.85 16 A ARG 36 -77.78 -90.47 16 A THR 47 -162.11 45.20 16 A CYS 48 -39.68 95.82 16 A PRO 49 -95.11 35.56 16 A SER 50 -90.99 41.47 16 A PRO 53 -60.86 67.51 16 A TYR 54 -161.52 -61.90 16 A LYS 64 37.93 48.32 16 A GLN 71 -76.97 -139.67 16 A ARG 72 100.14 -66.78 16 B TRP 184 -92.07 -117.41 16 B CYS 192 147.54 -39.35 17 A ALA 7 -161.44 -31.88 17 A THR 8 -87.56 -138.79 17 A PRO 10 -106.59 -169.14 17 A PRO 18 -48.83 166.55 17 A ASN 21 -168.50 40.05 17 A TRP 28 -146.36 -159.95 17 A ALA 31 93.13 -28.74 17 A SER 34 -91.77 -78.20 17 A SER 35 -140.99 -52.35 17 A ARG 36 -73.99 -90.57 17 A ALA 46 -135.18 -35.75 17 A THR 47 -151.53 41.40 17 A TYR 54 -145.55 -44.62 17 A SER 61 -112.88 56.93 17 A ASN 66 -109.31 70.68 17 A PRO 67 -87.82 -139.76 17 A ARG 72 146.93 -59.66 17 B ARG 182 63.08 -81.33 17 B TRP 184 -95.25 -119.25 17 B CYS 192 90.90 -54.75 17 B GLU 203 -118.65 -75.55 18 A ALA 7 -165.26 -29.04 18 A THR 8 -81.33 -143.82 18 A TRP 28 -159.01 -159.56 18 A ALA 31 91.57 -20.55 18 A SER 34 -91.51 -77.97 18 A SER 35 -141.20 -48.51 18 A ARG 36 -83.30 -92.14 18 A CYS 48 -39.65 99.78 18 A PRO 49 -51.88 -176.86 18 A TYR 54 -179.01 -42.42 18 A SER 61 -106.76 61.91 18 A ASP 63 -39.87 128.41 18 A LYS 64 30.37 50.67 18 A ASN 66 -112.05 70.42 18 A PRO 67 -88.76 -159.80 18 B TRP 184 -98.49 -121.80 18 B CYS 192 87.95 -56.30 18 B ASP 195 -86.29 34.44 18 B ILE 201 -126.76 -78.94 18 B GLU 203 -170.18 -51.89 19 A ALA 7 -160.06 -46.47 19 A THR 8 -78.49 -142.86 19 A PRO 10 -102.40 -166.93 19 A PRO 18 -42.87 -71.17 19 A GLU 20 -69.68 -179.29 19 A ASN 21 -163.16 16.16 19 A TRP 28 -148.74 -158.08 19 A ALA 31 92.42 -32.66 19 A SER 34 -91.52 -77.80 19 A SER 35 -141.49 -50.05 19 A ARG 36 -74.43 -93.19 19 A ALA 45 -170.10 -179.28 19 A THR 47 -146.61 42.80 19 A CYS 48 -39.91 124.57 19 A TYR 54 162.43 -38.41 19 A ASP 63 -39.52 122.55 19 A LYS 64 33.51 58.58 19 A ASN 66 -112.55 79.84 19 A PRO 73 -54.90 90.27 19 B TRP 184 -96.48 -116.72 19 B CYS 192 146.18 -45.79 19 B THR 196 -140.34 51.34 19 B GLU 203 -151.09 31.06 alpha-Bungarotoxin, Acetylcholine receptor protein NMR structure of an AChR-peptide (Torpedo Californica, alpha-subunit residues 182-202) in complex with alpha-Bungarotoxin 1 N N 2 N N disulf 2.026 A CYS 3 A SG CYS 3 1_555 A CYS 23 A SG CYS 23 1_555 disulf 2.031 A CYS 16 A SG CYS 16 1_555 A CYS 44 A SG CYS 44 1_555 disulf 2.033 A CYS 29 A SG CYS 29 1_555 A CYS 33 A SG CYS 33 1_555 disulf 2.030 A CYS 48 A SG CYS 48 1_555 A CYS 59 A SG CYS 59 1_555 disulf 2.030 A CYS 60 A SG CYS 60 1_555 A CYS 65 A SG CYS 65 1_555 disulf 2.054 B CYS 192 B SG CYS 13 1_555 B CYS 193 B SG CYS 14 1_555 Receptor, Toxin bungarotoxin, acetylcholine receptor, beta-hairpin, intermolecular beta-sheet, Receptor, Toxin NXL1A_BUNMU UNP 1 1 P60615 IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG ACHA_TORMA UNP 2 206 P02711 RGWKHWVYYTCCPDTPYLDIT 1 74 1LJZ 1 74 P60615 A 1 1 74 206 226 1LJZ 182 202 P02711 B 2 3 23 2 INSERTION GLU 180 1LJZ B P02711 UNP 1 2 INSERTION GLU 181 1LJZ B P02711 UNP 2 2 INSERTION GLU 203 1LJZ B P02711 UNP 24 2 INSERTION GLU 204 1LJZ B P02711 UNP 25 2 3 2 2 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A HIS 4 A HIS 4 A THR 5 A THR 5 A SER 12 A SER 12 A ALA 13 A ALA 13 A GLU 41 A GLU 41 A ALA 45 A ALA 45 A LEU 22 A LEU 22 A MET 27 A MET 27 A GLU 56 A GLU 56 A CYS 60 A CYS 60 A CYS 29 A CYS 29 A ASP 30 A ASP 30 A GLY 37 A GLY 37 A LYS 38 A LYS 38 B HIS 186 B HIS 7 B VAL 188 B VAL 9 B TYR 198 B TYR 19 B ASP 200 B ASP 21 1 P 1