1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Zeng, H. Moise, L. Grant, M.A. Hawrot, E. 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 C4 H7 N O2 101.104 n HOMOSERINE LACTONE 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 J.Biol.Chem. JBCHA3 0071 0021-9258 276 22930 22940 10.1074/jbc.M102300200 11312275 The solution structure of the complex formed between alpha-bungarotoxin and an 18-mer cognate peptide derived from the alpha 1 subunit of the nicotinic acetylcholine receptor from Torpedo californica. 2001 10.2210/pdb1idh/pdb pdb_00001idh 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 8005.281 ALPHA-BUNGAROTOXIN 1 nat polymer 2424.732 ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN 1 man polymer LONG NEUROTOXIN 1 NACHR-ALPHA1-SUBUNIT no no IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG A polypeptide(L) no yes YRGWKHWVYYTCCPDTPY(HSL) YRGWKHWVYYTCCPDTPYS 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 Pacific electric ray Torpedo Escherichia Escherichia coli sample 7787 Torpedo californica 469008 Escherichia coli BL21(DE3) BL21 (DE3) PLASMID PET-31B(+) many-banded krait PURCHASED FROM SIGMA Bungarus sample 8616 Bungarus multicinctus database_2 pdbx_nmr_software pdbx_nmr_spectrometer pdbx_struct_assembly pdbx_struct_oper_list repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 2001-04-25 1 1 2008-04-27 1 2 2011-07-13 1 3 2022-02-23 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_software.name _pdbx_nmr_spectrometer.model 1IDG is the average structure of this ensemble 1IDI is the average structure of alpha-Bungarotoxin 1IDL is 20 ensemble structures of alpha-Bungarotoxin RCSB Y RCSB 2001-04-04 REL REL The authors recommend using the Graphics program, MOLMOL, to view this ensemble of 20 structures. The submitted conformer models are the 20 structures with the lowest energy from 120 acceptable structures which were from 300 total calculated structures and had no restraint violations. The best representative conformer is the lowest potential energy structure of the ensemble. 300 20 3D_15N-separated_TOCSY 3D HNHA 3D_15N-separated_NOESY 2D_TOCSY 2D_NOESY 2D 1H-15N HSQC 4.0 ambient 308 K distance geometry and simulated annealing 8 it is the lowest potential energy structure of the ensemble 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide 95% H2O/5% D2O Bruker collection XwinNMR 2.1 Delaglio, F. et al. processing NMRPipe 1.8 Goddard, T.D. and Kneller, D.G. data analysis Sparky 3.95 Brunger, A.T. et al. refinement CNSsolve 1.0 600 Bruker AVANCE 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 TYR 181 n 1 TYR 181 B ARG 182 n 2 ARG 182 B GLY 183 n 3 GLY 183 B TRP 184 n 4 TRP 184 B LYS 185 n 5 LYS 185 B HIS 186 n 6 HIS 186 B TRP 187 n 7 TRP 187 B VAL 188 n 8 VAL 188 B TYR 189 n 9 TYR 189 B TYR 190 n 10 TYR 190 B THR 191 n 11 THR 191 B CYS 192 n 12 CYS 192 B CYS 193 n 13 CYS 193 B PRO 194 n 14 PRO 194 B ASP 195 n 15 ASP 195 B THR 196 n 16 THR 196 B PRO 197 n 17 PRO 197 B TYR 198 n 18 TYR 198 B n 19 199 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 1 B HSL 199 B HSL 19 1 Y 2 B HSL 199 B HSL 19 1 Y 3 B HSL 199 B HSL 19 1 Y 4 B HSL 199 B HSL 19 1 Y 5 B HSL 199 B HSL 19 1 Y 6 B HSL 199 B HSL 19 1 Y 7 B HSL 199 B HSL 19 1 Y 8 B HSL 199 B HSL 19 1 Y 9 B HSL 199 B HSL 19 1 Y 10 B HSL 199 B HSL 19 1 Y 11 B HSL 199 B HSL 19 1 Y 12 B HSL 199 B HSL 19 1 Y 13 B HSL 199 B HSL 19 1 Y 14 B HSL 199 B HSL 19 1 Y 15 B HSL 199 B HSL 19 1 Y 16 B HSL 199 B HSL 19 1 Y 17 B HSL 199 B HSL 19 1 Y 18 B HSL 199 B HSL 19 1 Y 19 B HSL 199 B HSL 19 1 Y 20 B HSL 199 B HSL 19 1 Y 4 A A O HD21 CYS ASN 3 66 1.53 4 A A O H CYS SER 48 50 1.59 7 A A O H HIS ALA 4 13 1.59 12 A A O O LYS VAL 26 40 2.18 17 A A O H CYS SER 48 50 1.55 17 B B O H THR TYR 196 198 1.58 20 A A O H CYS THR 3 15 1.59 1 A CYS 3 -160.31 100.65 1 A HIS 4 -36.01 120.36 1 A THR 6 81.17 -53.97 1 A ALA 7 58.98 -96.14 1 A THR 8 62.01 -68.87 1 A SER 9 -136.28 -67.02 1 A PRO 10 -77.52 -123.88 1 A ILE 11 179.77 158.20 1 A ALA 13 -60.39 91.82 1 A VAL 14 -72.93 -166.54 1 A THR 15 75.17 130.32 1 A ASN 21 -168.38 -74.49 1 A TYR 24 34.82 -159.25 1 A ARG 25 97.23 117.17 1 A LYS 26 -147.98 -93.82 1 A MET 27 172.15 -164.12 1 A TRP 28 -133.18 -84.53 1 A CYS 29 54.53 175.14 1 A ASP 30 -86.21 -76.23 1 A ALA 31 -118.10 -130.67 1 A CYS 33 34.62 -86.19 1 A SER 35 -152.95 -66.41 1 A ARG 36 -86.45 -155.36 1 A LYS 38 -39.38 95.33 1 A VAL 39 -145.75 -151.53 1 A LEU 42 -64.46 -88.08 1 A CYS 44 62.79 144.66 1 A ALA 45 -147.06 -68.78 1 A ALA 46 166.14 -37.01 1 A CYS 48 -142.76 52.81 1 A SER 50 -61.46 -166.91 1 A LYS 51 177.86 39.91 1 A PRO 53 -71.19 -89.58 1 A GLU 55 -156.07 -78.61 1 A GLU 56 166.34 -28.36 1 A THR 58 -122.84 -67.42 1 A CYS 59 178.73 146.88 1 A LYS 64 179.54 43.81 1 A ASN 66 -58.52 105.32 1 A PRO 67 -73.51 -156.16 1 A PRO 69 -53.47 177.33 1 B LYS 185 -47.56 158.43 1 B TRP 187 -47.24 -89.53 1 B TYR 189 -100.63 -165.75 1 B THR 191 -89.62 -76.27 1 B CYS 192 -42.93 170.27 1 B PRO 194 -73.10 -70.72 1 B ASP 195 166.56 -20.69 1 B PRO 197 -64.26 25.13 2 A HIS 4 -35.07 143.55 2 A THR 5 -57.34 -164.23 2 A THR 6 -90.60 42.64 2 A THR 8 -58.46 -109.44 2 A ILE 11 -53.18 -163.96 2 A SER 12 -173.33 -36.56 2 A ALA 13 -68.27 66.46 2 A THR 15 157.11 125.61 2 A PRO 18 -48.97 -177.49 2 A GLU 20 162.95 -173.46 2 A ASN 21 -178.94 -79.47 2 A LEU 22 -59.05 91.72 2 A CYS 23 -66.02 63.06 2 A TRP 28 -58.63 79.77 2 A CYS 29 -170.02 119.02 2 A PHE 32 -102.96 -79.17 2 A CYS 33 38.22 30.77 2 A SER 34 48.46 -86.90 2 A SER 35 -176.49 71.23 2 A ARG 36 -115.05 -87.93 2 A VAL 40 -47.57 153.37 2 A GLU 41 -174.68 131.32 2 A LEU 42 -50.22 176.60 2 A CYS 44 70.41 99.53 2 A ALA 45 -128.40 -139.49 2 A ALA 46 -167.98 36.53 2 A THR 47 -176.81 40.89 2 A CYS 48 39.24 73.23 2 A SER 50 -38.24 -74.19 2 A LYS 51 67.89 -161.87 2 A PRO 53 -39.98 -28.30 2 A VAL 57 -44.10 167.74 2 A CYS 59 -50.63 105.79 2 A CYS 60 -78.31 -97.04 2 A SER 61 39.10 88.18 2 A THR 62 175.75 -59.49 2 A ASP 63 -130.76 -158.80 2 A CYS 65 36.02 42.26 2 A PRO 67 -79.81 -167.55 2 A GLN 71 -96.35 38.44 2 A ARG 72 58.12 164.84 2 B TRP 184 51.76 169.86 2 B LYS 185 171.59 -41.76 2 B TRP 187 -51.60 -84.88 2 B CYS 193 38.61 48.09 2 B PRO 194 -100.67 -69.60 2 B ASP 195 -70.46 -84.75 2 B THR 196 -160.17 52.04 3 A THR 5 28.63 36.78 3 A THR 6 48.94 21.67 3 A THR 8 -121.89 -70.88 3 A PRO 10 -48.57 -73.73 3 A VAL 14 -40.58 -83.23 3 A THR 15 47.57 89.40 3 A ASN 21 -107.25 69.59 3 A LEU 22 49.88 -96.41 3 A CYS 23 -158.66 30.76 3 A TYR 24 55.07 161.21 3 A ARG 25 -150.93 63.32 3 A TRP 28 -79.89 -78.77 3 A CYS 29 52.62 -89.98 3 A ASP 30 44.93 -177.31 3 A ALA 31 39.45 -145.72 3 A PHE 32 -92.49 44.72 3 A LYS 38 56.58 168.69 3 A VAL 40 -67.54 -177.43 3 A GLU 41 177.61 -63.34 3 A LEU 42 56.59 169.57 3 A CYS 44 58.69 114.93 3 A SER 50 -105.71 -112.99 3 A LYS 52 -143.30 -54.19 3 A GLU 55 -105.71 -67.95 3 A GLU 56 173.55 -36.64 3 A VAL 57 179.69 -100.45 3 A THR 58 85.98 31.17 3 A CYS 60 170.47 129.35 3 A ASP 63 179.01 -174.64 3 A CYS 65 68.25 -49.62 3 A ASN 66 -32.53 98.18 3 A PRO 67 -83.72 -101.73 3 A HIS 68 175.47 132.08 3 B ARG 182 44.23 -90.11 3 B TRP 184 -67.02 -168.24 3 B TRP 187 -48.45 161.98 3 B VAL 188 -85.18 -94.03 3 B TYR 189 -160.67 113.48 3 B CYS 192 -46.26 172.49 3 B CYS 193 46.96 112.95 3 B PRO 194 -42.22 162.88 4 A HIS 4 57.67 162.27 4 A THR 5 -96.40 35.93 4 A THR 6 -37.75 -34.50 4 A ALA 7 34.79 80.66 4 A THR 8 80.15 -44.48 4 A SER 9 -171.98 -68.40 4 A PRO 10 -84.11 -132.39 4 A ILE 11 82.12 -110.38 4 A SER 12 -161.96 -162.68 4 A THR 15 66.58 128.42 4 A GLU 20 66.42 118.08 4 A ASN 21 -146.05 -63.21 4 A LEU 22 70.70 108.72 4 A CYS 23 -64.08 65.34 4 A TYR 24 -22.72 138.10 4 A TRP 28 -70.21 -165.80 4 A ALA 31 -155.50 -75.31 4 A CYS 33 48.84 79.67 4 A LYS 38 -159.87 27.85 4 A GLU 41 -176.86 -98.98 4 A LEU 42 57.46 157.60 4 A CYS 44 57.32 157.87 4 A ALA 45 -151.11 -39.27 4 A ALA 46 80.85 40.52 4 A THR 47 -165.77 77.48 4 A PRO 49 -69.89 58.95 4 A SER 50 -110.00 -109.01 4 A LYS 51 36.17 77.54 4 A GLU 55 -105.76 -150.57 4 A GLU 56 -140.18 15.84 4 A CYS 60 -114.97 -94.58 4 A SER 61 64.07 -76.48 4 A ASP 63 56.17 173.15 4 A LYS 64 -66.75 84.75 4 A PRO 69 -48.81 165.66 4 A ARG 72 28.96 -87.09 4 A PRO 73 -62.20 -178.17 4 B ARG 182 -108.30 63.49 4 B TRP 187 -49.96 158.24 4 B THR 191 -31.23 144.94 4 B ASP 195 -63.84 80.81 4 B PRO 197 -74.04 21.93 5 A THR 5 -47.21 -74.70 5 A ALA 7 -120.38 -161.12 5 A THR 8 -49.01 96.81 5 A SER 9 69.63 77.66 5 A PRO 10 -85.37 -135.38 5 A SER 12 -76.06 -166.85 5 A VAL 14 -57.79 99.95 5 A THR 15 169.67 116.83 5 A PRO 17 -38.76 103.67 5 A PRO 18 -57.17 -160.25 5 A ASN 21 64.14 88.86 5 A LEU 22 -73.66 -80.32 5 A CYS 23 -158.52 29.04 5 A ARG 25 -168.73 -79.08 5 A LYS 26 177.70 165.97 5 A CYS 29 -173.59 99.32 5 A ALA 31 59.22 -156.29 5 A LYS 38 58.36 -80.74 5 A VAL 39 35.92 -145.71 5 A VAL 40 91.23 151.46 5 A GLU 41 167.15 137.60 5 A CYS 44 62.65 147.62 5 A ALA 45 175.97 137.30 5 A PRO 53 -51.96 -142.33 5 A GLU 55 -144.19 -157.91 5 A GLU 56 -161.25 26.82 5 A THR 58 -148.22 40.54 5 A CYS 59 56.06 -116.51 5 A CYS 60 139.17 47.07 5 A ASP 63 171.18 167.93 5 A CYS 65 72.32 -44.36 5 A ASN 66 -40.07 97.35 5 A HIS 68 55.98 168.49 5 A GLN 71 52.37 -85.72 5 B ARG 182 62.62 148.00 5 B TRP 184 46.10 -172.97 5 B VAL 188 -86.97 -152.57 5 B TYR 189 -97.55 31.71 5 B CYS 193 40.02 89.53 5 B PRO 194 -49.07 176.93 5 B ASP 195 -65.55 76.27 5 B THR 196 -150.14 45.56 6 A CYS 3 -97.31 -156.79 6 A THR 6 -151.39 27.95 6 A ALA 7 -39.31 -31.70 6 A THR 8 -125.23 -72.69 6 A SER 9 -146.89 -69.81 6 A PRO 10 -63.89 -85.92 6 A SER 12 -159.65 -88.15 6 A ALA 13 -179.97 124.37 6 A VAL 14 -120.30 -99.62 6 A THR 15 53.65 173.54 6 A PRO 18 -48.78 162.25 6 A CYS 23 37.08 67.44 6 A ARG 25 174.57 150.75 6 A LYS 26 -144.83 -83.48 6 A MET 27 134.09 -144.84 6 A CYS 29 -177.38 -77.05 6 A ASP 30 170.41 -80.76 6 A ALA 31 -161.97 -80.98 6 A ARG 36 -67.04 81.87 6 A LYS 38 65.93 -63.59 6 A VAL 39 -54.72 106.97 6 A VAL 40 -39.62 155.82 6 A GLU 41 -100.32 -164.08 6 A LEU 42 -120.52 -163.96 6 A CYS 44 59.59 129.06 6 A THR 47 -178.58 124.07 6 A PRO 49 -40.22 81.76 6 A LYS 52 -57.15 179.64 6 A TYR 54 -69.61 65.47 6 A GLU 55 -82.16 -145.33 6 A VAL 57 178.72 141.83 6 A THR 62 177.21 -74.40 6 A ASP 63 179.99 -37.76 6 A PRO 67 -44.72 162.96 6 A HIS 68 -176.24 64.05 6 A GLN 71 19.79 53.53 6 A PRO 73 -77.90 -167.77 6 B LYS 185 -177.42 141.24 6 B THR 191 -33.12 141.32 6 B CYS 193 36.27 92.71 7 A VAL 2 45.82 -179.34 7 A CYS 3 -128.78 -139.76 7 A HIS 4 -109.48 -95.77 7 A THR 6 -103.19 77.92 7 A ALA 7 -177.96 -68.67 7 A SER 9 57.97 174.55 7 A PRO 10 -80.17 -88.37 7 A ILE 11 70.34 -57.72 7 A SER 12 84.58 111.44 7 A ALA 13 -163.81 -31.80 7 A VAL 14 -41.11 -86.59 7 A THR 15 51.07 104.63 7 A ASN 21 79.19 -52.52 7 A CYS 23 -80.44 39.70 7 A TYR 24 43.67 -165.58 7 A ARG 25 -179.97 90.20 7 A TRP 28 -67.12 -159.81 7 A ALA 31 62.22 90.39 7 A SER 34 -156.74 28.38 7 A ARG 36 25.84 89.77 7 A LYS 38 -173.46 99.89 7 A GLU 41 -173.32 -58.36 7 A LEU 42 44.12 -168.82 7 A CYS 44 61.99 141.26 7 A ALA 45 -130.00 -99.57 7 A ALA 46 -179.33 -41.40 7 A THR 47 -178.12 45.65 7 A LYS 51 77.87 -50.28 7 A GLU 55 -55.56 -85.36 7 A GLU 56 167.33 -74.92 7 A THR 58 -164.10 -95.25 7 A SER 61 -42.80 106.33 7 A THR 62 -164.84 -76.45 7 A ASP 63 177.58 -39.31 7 A LYS 64 -160.81 56.52 7 A ASN 66 29.69 62.02 7 A HIS 68 62.34 161.01 7 A PRO 69 -36.23 126.07 7 A GLN 71 -69.51 64.54 7 B ARG 182 60.86 156.39 7 B LYS 185 63.70 137.41 7 B TYR 189 -95.78 56.20 7 B THR 191 -62.19 86.63 7 B ASP 195 55.06 100.18 7 B PRO 197 -68.52 19.43 8 A HIS 4 -10.49 93.03 8 A THR 5 39.24 -166.07 8 A ALA 7 86.87 -31.30 8 A ILE 11 -178.62 144.37 8 A SER 12 -157.58 -81.23 8 A ALA 13 -152.76 57.02 8 A VAL 14 -74.81 -107.22 8 A THR 15 62.26 144.80 8 A CYS 16 -148.02 -65.41 8 A PRO 17 -52.09 100.10 8 A GLU 20 -160.11 68.33 8 A ARG 25 -176.28 97.76 8 A TRP 28 -77.86 -144.68 8 A CYS 29 -176.71 -36.40 8 A ASP 30 77.84 -61.46 8 A ALA 31 -174.24 96.17 8 A PHE 32 58.88 104.62 8 A CYS 33 -112.41 -83.56 8 A SER 34 70.09 -60.22 8 A ARG 36 -72.59 -86.19 8 A LYS 38 31.54 45.90 8 A GLU 41 178.38 35.44 8 A CYS 44 61.44 131.83 8 A THR 47 -160.76 26.51 8 A LYS 51 175.22 46.08 8 A PRO 53 -54.91 -162.97 8 A TYR 54 -46.59 96.27 8 A GLU 55 -113.67 -82.57 8 A GLU 56 177.12 -57.43 8 A THR 58 -147.45 22.63 8 A CYS 59 60.02 110.92 8 A SER 61 -60.79 80.25 8 A THR 62 179.47 -33.24 8 A ASP 63 70.63 60.91 8 A LYS 64 178.82 39.71 8 A LYS 70 -88.57 -159.19 8 A GLN 71 -96.70 41.69 8 B ARG 182 66.26 -75.99 8 B LYS 185 -174.38 -59.48 8 B TRP 187 -59.45 -71.39 8 B VAL 188 -79.68 -165.91 8 B CYS 192 -43.22 174.01 8 B CYS 193 47.18 82.45 8 B PRO 194 -53.81 172.55 8 B ASP 195 -71.60 -161.83 8 B PRO 197 -62.29 20.98 9 A CYS 3 -67.82 -159.70 9 A THR 6 -59.56 -6.55 9 A THR 8 64.03 -77.23 9 A GLU 20 58.14 72.25 9 A LEU 22 61.88 88.33 9 A CYS 23 -59.50 73.94 9 A ARG 25 -144.70 -81.09 9 A LYS 26 -179.77 110.52 9 A ASP 30 -109.24 -75.75 9 A ALA 31 -127.37 -70.07 9 A CYS 33 62.23 85.62 9 A ARG 36 -107.84 -81.41 9 A VAL 39 80.82 -3.55 9 A VAL 40 43.09 -172.80 9 A GLU 41 -169.46 89.91 9 A CYS 44 59.25 129.86 9 A ALA 46 -60.75 78.61 9 A THR 47 167.71 -77.61 9 A LYS 51 -164.94 54.10 9 A PRO 53 -55.81 -162.05 9 A TYR 54 -55.08 89.63 9 A GLU 55 -102.73 -73.69 9 A GLU 56 172.82 -36.15 9 A CYS 59 69.19 103.94 9 A CYS 60 -74.37 -160.39 9 A SER 61 167.72 137.69 9 A THR 62 35.09 -91.66 9 A LYS 64 -56.32 86.98 9 A ASN 66 -167.06 55.87 9 A PRO 69 -71.09 -74.63 9 A LYS 70 177.41 -102.16 9 A GLN 71 -67.10 89.63 9 A ARG 72 -162.59 59.04 9 B ARG 182 71.57 32.99 9 B CYS 192 -45.31 178.31 9 B CYS 193 31.24 58.42 9 B PRO 194 -90.53 -68.31 9 B ASP 195 178.94 129.77 10 A CYS 3 -113.30 -162.14 10 A SER 12 -176.53 -158.36 10 A THR 15 29.69 79.01 10 A CYS 16 -39.16 96.13 10 A PRO 18 -55.83 -80.34 10 A GLU 20 58.36 -179.39 10 A ASN 21 -177.25 39.29 10 A TYR 24 -133.47 -32.66 10 A ARG 25 37.10 -117.55 10 A CYS 29 61.48 131.98 10 A ASP 30 -178.76 -177.94 10 A ALA 31 64.28 -80.80 10 A SER 35 -93.27 -151.01 10 A ARG 36 28.60 -139.97 10 A VAL 40 -50.01 -179.93 10 A CYS 44 65.40 140.84 10 A ALA 45 -117.19 -82.47 10 A ALA 46 169.22 -39.37 10 A THR 47 -162.71 -7.77 10 A LYS 51 179.99 75.22 10 A PRO 53 -50.81 -72.60 10 A GLU 55 59.21 -87.31 10 A THR 58 -145.74 -99.58 10 A CYS 59 167.45 172.41 10 A CYS 60 -125.05 -86.49 10 A SER 61 53.59 -158.23 10 A THR 62 46.83 -90.46 10 A LYS 64 -68.22 73.53 10 A ASN 66 -31.16 92.82 10 A GLN 71 -65.13 73.61 10 B ARG 182 -58.31 -166.68 10 B TRP 184 -136.52 -51.30 10 B LYS 185 63.54 -78.58 10 B TRP 187 -60.65 -169.50 10 B CYS 192 -48.23 174.89 10 B CYS 193 46.51 82.13 10 B ASP 195 -178.50 110.72 10 B THR 196 -152.75 41.90 11 A VAL 2 62.53 144.47 11 A HIS 4 68.07 162.70 11 A THR 5 -78.82 -161.96 11 A ALA 7 48.24 -148.15 11 A THR 8 75.06 159.00 11 A ILE 11 76.48 161.24 11 A SER 12 -136.91 -120.41 11 A THR 15 73.29 162.06 11 A CYS 16 -172.01 -60.05 11 A PRO 17 -58.31 106.00 11 A CYS 23 -157.88 8.33 11 A TYR 24 52.18 173.09 11 A ARG 25 161.35 104.28 11 A LYS 26 -58.00 -179.65 11 A MET 27 -146.04 44.75 11 A TRP 28 45.65 172.30 11 A CYS 29 37.10 -157.72 11 A ASP 30 -165.95 92.95 11 A ALA 31 62.79 140.13 11 A PHE 32 45.80 84.07 11 A ARG 36 -57.65 -170.15 11 A LYS 38 62.58 75.29 11 A GLU 41 170.90 -179.08 11 A CYS 44 66.88 90.18 11 A ALA 45 -128.08 -165.04 11 A ALA 46 -141.51 55.52 11 A THR 47 -175.13 137.66 11 A SER 50 -38.17 131.71 11 A LYS 51 -166.59 -38.98 11 A PRO 53 -60.45 -85.43 11 A TYR 54 -66.64 80.50 11 A GLU 55 -78.99 -78.51 11 A THR 58 59.66 111.83 11 A CYS 60 74.16 172.70 11 A SER 61 154.06 68.30 11 A PRO 67 -68.57 67.57 11 A HIS 68 61.70 153.94 11 A PRO 69 -59.18 -162.22 11 A GLN 71 -4.03 79.53 11 A ARG 72 142.98 158.48 11 B TRP 184 68.46 -64.93 11 B LYS 185 72.19 130.67 11 B CYS 192 -90.38 -65.85 11 B CYS 193 -144.12 35.29 11 B PRO 197 -67.36 16.40 12 A THR 6 47.34 28.10 12 A ALA 7 -60.39 -70.10 12 A SER 9 172.66 169.24 12 A PRO 10 -53.47 -79.78 12 A ILE 11 61.22 -75.46 12 A SER 12 64.81 -162.18 12 A ALA 13 80.72 -4.21 12 A THR 15 44.67 101.78 12 A PRO 17 -40.73 150.08 12 A GLU 20 -57.11 -163.74 12 A ASN 21 74.23 69.54 12 A CYS 23 -55.01 171.44 12 A TYR 24 -109.61 -162.55 12 A ARG 25 -165.88 69.20 12 A TRP 28 -39.78 -86.50 12 A CYS 29 72.76 154.01 12 A ALA 31 57.15 -86.39 12 A SER 34 76.42 99.37 12 A ARG 36 -96.10 -84.99 12 A GLU 41 -153.43 -154.03 12 A LEU 42 66.75 136.03 12 A CYS 44 61.06 150.42 12 A THR 47 -158.09 -120.49 12 A CYS 48 -178.01 65.19 12 A LYS 51 171.15 44.15 12 A TYR 54 -69.28 99.61 12 A GLU 55 -109.96 -107.70 12 A GLU 56 60.63 64.57 12 A VAL 57 164.89 -30.54 12 A THR 58 -33.72 157.89 12 A CYS 59 -51.96 -173.79 12 A CYS 60 -163.56 70.08 12 A THR 62 144.41 -146.13 12 A LYS 64 36.05 45.46 12 A CYS 65 50.19 -82.63 12 A HIS 68 60.83 158.63 12 A LYS 70 50.67 -87.66 12 A GLN 71 52.21 -80.78 12 A PRO 73 -56.94 -162.09 12 B TRP 184 -111.10 -160.99 12 B LYS 185 64.64 142.01 12 B TYR 190 -156.63 15.91 12 B PRO 194 -74.23 -162.41 12 B PRO 197 -66.47 22.78 13 A VAL 2 -42.49 159.70 13 A CYS 3 -158.06 41.89 13 A HIS 4 49.95 -176.91 13 A THR 5 -63.55 -132.05 13 A THR 6 -96.15 30.84 13 A PRO 10 -79.28 -129.59 13 A SER 12 -140.50 -84.35 13 A VAL 14 -54.12 172.62 13 A THR 15 72.11 150.46 13 A GLU 20 -100.21 -153.81 13 A ASN 21 -106.19 64.80 13 A CYS 23 24.19 43.69 13 A TYR 24 -36.32 91.52 13 A TRP 28 -105.74 -137.15 13 A CYS 29 71.15 -162.73 13 A ASP 30 173.72 37.36 13 A ALA 31 76.29 -54.52 13 A SER 34 -64.42 76.93 13 A ARG 36 -101.98 -107.53 13 A LYS 38 38.72 30.39 13 A VAL 40 25.40 -145.83 13 A GLU 41 118.67 106.86 13 A LEU 42 -50.70 179.84 13 A CYS 44 55.44 79.34 13 A ALA 46 -167.28 50.41 13 A THR 47 178.41 -33.20 13 A SER 50 -97.05 42.33 13 A LYS 51 74.56 162.53 13 A LYS 52 -128.72 -70.51 13 A TYR 54 -52.38 178.80 13 A GLU 55 41.65 -112.25 13 A GLU 56 -162.49 -112.62 13 A VAL 57 58.19 -76.38 13 A CYS 59 50.78 -177.30 13 A CYS 60 -141.19 -94.81 13 A SER 61 54.25 172.75 13 A THR 62 74.64 79.07 13 A ASP 63 52.36 -178.39 13 A LYS 64 -57.35 88.79 13 A CYS 65 -92.13 42.56 13 A HIS 68 64.29 178.56 13 A ARG 72 57.75 98.18 13 A PRO 73 -67.30 68.63 13 B LYS 185 -67.23 -80.60 13 B HIS 186 -139.32 -157.77 13 B TRP 187 -47.66 172.20 13 B VAL 188 -78.91 -113.99 13 B TYR 190 -154.43 87.72 13 B CYS 192 -43.48 171.52 13 B THR 196 -160.36 48.78 14 A VAL 2 63.40 159.19 14 A THR 5 -21.96 134.43 14 A ALA 7 -63.85 -161.73 14 A SER 9 121.36 14.11 14 A PRO 10 -77.42 -88.32 14 A ALA 13 -119.21 55.77 14 A VAL 14 -52.61 -100.71 14 A THR 15 44.91 91.19 14 A CYS 16 -120.98 -51.60 14 A GLU 20 173.17 -165.88 14 A LEU 22 39.04 -161.89 14 A TYR 24 46.54 -174.83 14 A ARG 25 172.56 94.77 14 A TRP 28 -114.98 -74.15 14 A PHE 32 56.26 97.43 14 A CYS 33 -56.56 -73.72 14 A SER 34 55.08 -85.89 14 A ARG 36 -119.70 -163.07 14 A GLU 41 171.93 -28.81 14 A LEU 42 69.73 158.20 14 A CYS 44 51.86 86.94 14 A THR 47 -170.58 -179.61 14 A CYS 48 179.02 -48.24 14 A PRO 49 -52.28 72.56 14 A SER 50 -118.63 -80.01 14 A GLU 55 63.17 -80.14 14 A VAL 57 -159.40 -76.60 14 A THR 58 60.15 118.39 14 A CYS 60 -112.07 -83.91 14 A SER 61 65.65 -148.32 14 A THR 62 49.09 -86.82 14 A ASP 63 -153.64 79.03 14 A LYS 64 41.19 23.61 14 A CYS 65 69.82 -42.39 14 A PRO 67 -92.29 -66.36 14 A HIS 68 58.21 166.24 14 A PRO 69 -35.15 123.72 14 B HIS 186 -88.20 -80.79 14 B VAL 188 -79.88 -71.99 14 B TYR 190 -160.15 104.80 14 B THR 191 -91.08 43.50 14 B ASP 195 -172.63 14.88 14 B THR 196 -147.20 36.85 15 A VAL 2 147.44 138.08 15 A CYS 3 -160.08 54.01 15 A HIS 4 -23.70 110.31 15 A ALA 7 -58.19 88.69 15 A THR 8 71.10 173.70 15 A PRO 10 -52.01 -93.27 15 A ILE 11 170.90 176.66 15 A SER 12 -177.09 17.24 15 A ALA 13 168.54 66.03 15 A THR 15 85.57 106.68 15 A ASN 21 -103.30 40.21 15 A LEU 22 165.82 -172.99 15 A CYS 29 85.68 -17.60 15 A ALA 31 67.28 -72.29 15 A PHE 32 -71.63 -164.24 15 A CYS 33 74.51 -50.12 15 A ARG 36 -144.71 12.80 15 A LYS 38 36.47 74.91 15 A GLU 41 175.52 -87.15 15 A LEU 42 -51.77 -175.75 15 A CYS 44 76.57 109.29 15 A ALA 45 -173.50 147.11 15 A ALA 46 47.33 -82.43 15 A THR 47 156.76 62.19 15 A SER 50 -55.78 179.95 15 A LYS 51 175.89 -47.72 15 A TYR 54 -64.49 75.91 15 A GLU 56 -148.87 21.28 15 A THR 58 178.39 -170.28 15 A SER 61 -64.94 95.16 15 A THR 62 168.39 67.81 15 A ASP 63 64.81 -163.91 15 A LYS 64 -60.74 87.59 15 A ASN 66 -43.29 100.47 15 A HIS 68 -48.00 161.49 15 A PRO 69 -47.21 173.07 15 A GLN 71 25.42 -91.15 15 B HIS 186 -119.70 78.92 15 B TYR 189 -119.98 58.70 15 B CYS 193 44.67 178.26 15 B THR 196 -143.05 40.79 16 A HIS 4 -39.58 147.22 16 A ALA 7 73.83 -55.62 16 A THR 8 -30.03 130.19 16 A SER 9 68.22 167.25 16 A ILE 11 47.86 -160.63 16 A SER 12 170.11 -64.40 16 A ALA 13 -66.30 81.79 16 A THR 15 160.40 82.01 16 A PRO 17 -33.81 114.25 16 A PRO 18 -46.09 177.79 16 A GLU 20 -57.96 -166.18 16 A ASN 21 66.23 90.38 16 A CYS 23 -62.62 84.94 16 A TYR 24 -68.09 70.24 16 A TRP 28 -100.30 -164.35 16 A CYS 29 69.70 -65.37 16 A ASP 30 61.97 78.51 16 A CYS 33 44.89 -170.76 16 A SER 35 -179.74 -49.58 16 A ARG 36 30.87 -87.22 16 A GLU 41 -164.66 -123.71 16 A LEU 42 -169.79 -57.24 16 A CYS 44 74.72 88.01 16 A THR 47 -172.49 -38.82 16 A LYS 51 -168.26 33.66 16 A PRO 53 -56.35 -70.48 16 A TYR 54 -70.76 -80.55 16 A GLU 55 42.24 -155.26 16 A GLU 56 -175.05 -38.26 16 A THR 58 -147.55 20.42 16 A CYS 59 62.10 124.09 16 A SER 61 53.09 99.62 16 A THR 62 40.69 96.66 16 A ASP 63 178.26 -13.14 16 A CYS 65 -17.00 -65.36 16 A ASN 66 76.50 92.21 16 A PRO 67 -69.40 -171.62 16 A HIS 68 176.71 158.57 16 B ARG 182 69.58 -65.35 16 B VAL 188 -80.30 -81.32 16 B THR 191 -90.61 44.31 16 B CYS 192 -52.72 172.37 16 B CYS 193 43.14 81.65 16 B PRO 194 -86.44 30.67 16 B ASP 195 -162.45 71.57 16 B THR 196 -143.36 47.93 17 A VAL 2 -178.97 -169.04 17 A CYS 3 -147.16 -50.26 17 A HIS 4 53.95 110.28 17 A ALA 7 -59.76 84.78 17 A SER 9 168.80 104.29 17 A PRO 10 -85.69 -136.34 17 A ILE 11 55.27 0.08 17 A THR 15 62.71 147.76 17 A GLU 20 -99.40 48.96 17 A ASN 21 77.72 60.52 17 A CYS 23 -87.77 44.81 17 A TYR 24 35.29 -89.31 17 A ARG 25 107.08 -59.69 17 A LYS 26 61.53 123.89 17 A ASP 30 -97.97 44.82 17 A ALA 31 -178.30 -88.32 17 A ARG 36 -100.51 63.12 17 A LYS 38 179.19 33.25 17 A GLU 41 -157.19 42.81 17 A CYS 44 61.32 152.88 17 A ALA 45 -128.06 -79.37 17 A ALA 46 168.01 -24.98 17 A PRO 49 -65.97 59.76 17 A LYS 51 -141.47 -80.12 17 A LYS 52 107.29 -56.92 17 A PRO 53 -59.83 -156.65 17 A TYR 54 -62.84 85.59 17 A GLU 55 -106.90 -91.14 17 A GLU 56 174.59 -50.18 17 A THR 58 -167.30 33.60 17 A CYS 59 68.99 168.04 17 A CYS 60 -162.18 36.14 17 A SER 61 -74.72 -163.00 17 A ASP 63 60.68 149.66 17 A LYS 64 29.53 87.39 17 A PRO 67 -42.83 165.40 17 A LYS 70 -179.01 -164.12 17 A GLN 71 56.94 -82.07 17 A PRO 73 -58.89 83.34 17 B TRP 184 59.52 100.14 17 B LYS 185 -140.77 -46.43 17 B TRP 187 -62.23 -150.30 17 B THR 191 -89.66 49.38 17 B CYS 193 41.31 73.36 17 B PRO 194 -65.06 -87.42 17 B PRO 197 -64.73 27.87 18 A HIS 4 -46.35 166.30 18 A THR 8 -165.61 -68.96 18 A ILE 11 64.14 -103.05 18 A SER 12 162.95 -35.12 18 A THR 15 74.59 158.28 18 A CYS 16 176.54 -48.76 18 A ASN 21 -178.50 34.09 18 A LEU 22 -12.85 124.94 18 A TYR 24 60.58 126.40 18 A ARG 25 -117.21 78.06 18 A CYS 29 59.63 -168.40 18 A ALA 31 -171.93 -56.08 18 A CYS 33 56.84 165.76 18 A SER 34 172.13 -34.16 18 A SER 35 -161.36 -43.74 18 A LYS 38 22.92 -83.12 18 A VAL 39 -38.70 118.62 18 A GLU 41 -173.96 33.96 18 A CYS 44 60.61 152.56 18 A ALA 45 -133.00 -77.97 18 A ALA 46 170.75 -31.26 18 A CYS 48 -148.03 -60.46 18 A PRO 49 -39.66 -26.83 18 A LYS 51 170.63 59.81 18 A LYS 52 -97.14 -67.07 18 A GLU 55 -111.79 -138.41 18 A GLU 56 -139.30 -102.48 18 A VAL 57 49.61 159.88 18 A THR 58 -149.59 17.84 18 A CYS 59 49.61 97.47 18 A CYS 60 -84.71 -108.71 18 A SER 61 69.62 -59.22 18 A THR 62 -51.56 -173.55 18 A ASP 63 -39.88 160.10 18 A LYS 64 -40.73 92.49 18 A HIS 68 60.19 158.83 18 A ARG 72 48.43 168.14 18 B ARG 182 60.74 152.32 18 B HIS 186 -153.55 37.16 18 B TYR 189 -147.18 -101.56 18 B THR 191 -57.60 -162.94 18 B CYS 192 -90.69 -60.81 18 B PRO 194 -44.36 -70.85 18 B ASP 195 -144.37 -85.73 18 B THR 196 -157.06 43.53 19 A VAL 2 177.08 147.00 19 A HIS 4 -48.69 171.75 19 A THR 5 -75.58 -167.46 19 A ALA 7 83.36 78.89 19 A SER 9 -161.54 -78.54 19 A PRO 10 -80.11 -97.41 19 A SER 12 176.35 148.54 19 A THR 15 165.11 122.33 19 A PRO 18 -56.74 175.10 19 A GLU 20 -159.80 22.93 19 A LEU 22 70.11 -172.18 19 A CYS 23 -59.88 175.61 19 A ARG 25 78.18 170.98 19 A LYS 26 177.95 74.93 19 A ASP 30 -52.08 90.51 19 A ALA 31 38.90 -90.54 19 A PHE 32 -64.07 79.70 19 A CYS 33 -71.04 -73.44 19 A SER 34 69.04 -64.80 19 A ARG 36 -100.29 -149.80 19 A GLU 41 -175.79 -40.64 19 A LEU 42 62.41 171.10 19 A CYS 44 66.24 117.00 19 A THR 47 -171.93 94.92 19 A CYS 48 -147.24 46.06 19 A LYS 51 172.36 175.35 19 A LYS 52 115.79 -48.32 19 A TYR 54 -67.44 72.58 19 A THR 58 59.65 8.71 19 A CYS 59 58.33 150.41 19 A SER 61 -176.80 89.26 19 A THR 62 164.24 73.23 19 A ASP 63 63.64 178.39 19 A LYS 64 -52.75 90.57 19 A GLN 71 -126.06 -75.04 19 A ARG 72 -42.28 151.49 19 A PRO 73 -48.85 163.27 19 B ARG 182 59.72 72.61 19 B LYS 185 -111.54 -75.44 19 B TRP 187 -59.94 -160.41 19 B TYR 189 -95.39 31.45 19 B THR 191 -42.53 161.38 19 B CYS 192 -90.24 -64.72 19 B ASP 195 67.97 129.77 19 B THR 196 -160.11 44.48 20 A VAL 2 45.01 -171.64 20 A HIS 4 -37.83 162.95 20 A THR 6 67.23 -43.34 20 A ALA 7 77.07 -179.76 20 A SER 9 167.52 143.92 20 A ILE 11 -37.80 -26.92 20 A ALA 13 56.81 -116.78 20 A THR 15 176.78 142.95 20 A CYS 16 -158.98 74.29 20 A LEU 22 62.62 123.50 20 A TYR 24 -65.31 65.30 20 A ARG 25 -57.58 82.16 20 A MET 27 -177.34 100.84 20 A TRP 28 -56.86 -75.27 20 A CYS 29 49.83 81.09 20 A ASP 30 -62.50 99.38 20 A ALA 31 63.76 -79.55 20 A CYS 33 -84.93 -79.08 20 A SER 34 64.99 -74.76 20 A SER 35 179.65 29.68 20 A VAL 40 45.48 -174.92 20 A GLU 41 -177.08 -70.85 20 A LEU 42 66.18 137.48 20 A CYS 44 70.77 118.28 20 A ALA 46 -101.76 78.71 20 A THR 47 61.79 173.26 20 A PRO 49 -34.10 80.82 20 A SER 50 -161.26 -34.77 20 A PRO 53 -64.58 -154.12 20 A TYR 54 -45.00 93.70 20 A GLU 55 -61.33 -155.55 20 A VAL 57 -159.61 -50.49 20 A THR 58 32.88 -91.41 20 A SER 61 44.63 -162.26 20 A ASP 63 167.67 179.19 20 A CYS 65 -59.49 -70.88 20 A ASN 66 49.69 161.64 20 A PRO 67 -68.64 62.16 20 A HIS 68 -59.22 109.39 20 B LYS 185 86.99 -40.84 20 B TRP 187 -58.54 178.69 20 B TYR 189 -156.24 -26.44 20 B CYS 193 43.93 81.41 20 B ASP 195 -43.48 98.88 20 B THR 196 -149.83 45.42 THE NMR SOLUTION STRUCTURE OF THE COMPLEX FORMED BETWEEN ALPHA-BUNGAROTOXIN AND AN 18MER COGNATE PEPTIDE 1 N N 2 N N disulf 2.030 A CYS 3 A SG CYS 3 1_555 A CYS 23 A SG CYS 23 1_555 disulf 2.030 A CYS 16 A SG CYS 16 1_555 A CYS 44 A SG CYS 44 1_555 disulf 2.030 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 2.053 B CYS 192 B SG CYS 12 1_555 B CYS 193 B SG CYS 13 1_555 TOXIN ALPHA-BUNGAROTOXIN, NICOTINIC ACETYLCHOLINE RECEPTOR, ALPHA 1 SUBUNIT, PROTEIN-PROTEIN INTERACTION, CATION-PI INTERACTION, TOXIN NXL1A_BUNMU UNP 1 1 P60615 IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG ACHA_TORCA UNP 2 205 P02710 YRGWKHWVYYTCCPDTPY 1 74 1IDH 1 74 P60615 A 1 1 74 205 222 1IDH 181 198 P02710 B 2 1 18 2 cloning artifact HSL 199 1IDH B P02710 UNP 19 1 P 1