1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Venkitakrishnan, R.P. Chary, K.V.R. Kini, M.R. Govil, G. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 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 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 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 To be Published 0353 SOLUTION STRUCTURE OF CANDOXIN, A REVERSIBLE, POSTSYNAPTIC NEUROTOXIN PURIFIED FROM THE VENOM OF BUNGARUS CANDIDUS (MALAYAN KRAIT) 10.2210/pdb1jgk/pdb pdb_00001jgk 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 1 1.0 7355.551 CANDOXIN 1 nat polymer no no MKCKICNFDTCRAGELKVCASGEKYCFKESWREARGTRIERGCAATCPKGSVYGLYVLCCTTDDCN MKCKICNFDTCRAGELKVCASGEKYCFKESWREARGTRIERGCAATCPKGSVYGLYVLCCTTDDCN 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 n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n snake venom protein Bungarus sample 92438 Bungarus candidus database_2 pdbx_struct_assembly pdbx_struct_oper_list repository Initial release Version format compliance Version format compliance Database references Derived calculations 1 0 2001-12-28 1 1 2008-04-27 1 2 2011-07-13 1 3 2022-02-23 _database_2.pdbx_DOI _database_2.pdbx_database_accession RCSB Y RCSB 2001-06-25 REL REL The assignments and distance constraints were obtained by 2D homonuclear NMR spectroscopy. Structure calculation was performed using XPLOR program. structures with acceptable covalent geometry 200 19 Several experiments 3.0 ambient 298 K total of 629 (noe and distance restraints) and 39 dihedral constraints. distance geometry simulated annealing 19 fewest violations,lowest energy 4.5 mM candoxin at pH 3.0 at 298 K. 100% H2O for water samples 90% D2O and 10% H2O for deuterated samples Brunger structure solution X-PLOR 3.1 Brunger refinement X-PLOR 3.1 600 Varian UNITY MET 1 n 1 MET 1 A LYS 2 n 2 LYS 2 A CYS 3 n 3 CYS 3 A LYS 4 n 4 LYS 4 A ILE 5 n 5 ILE 5 A CYS 6 n 6 CYS 6 A ASN 7 n 7 ASN 7 A PHE 8 n 8 PHE 8 A ASP 9 n 9 ASP 9 A THR 10 n 10 THR 10 A CYS 11 n 11 CYS 11 A ARG 12 n 12 ARG 12 A ALA 13 n 13 ALA 13 A GLY 14 n 14 GLY 14 A GLU 15 n 15 GLU 15 A LEU 16 n 16 LEU 16 A LYS 17 n 17 LYS 17 A VAL 18 n 18 VAL 18 A CYS 19 n 19 CYS 19 A ALA 20 n 20 ALA 20 A SER 21 n 21 SER 21 A GLY 22 n 22 GLY 22 A GLU 23 n 23 GLU 23 A LYS 24 n 24 LYS 24 A TYR 25 n 25 TYR 25 A CYS 26 n 26 CYS 26 A PHE 27 n 27 PHE 27 A LYS 28 n 28 LYS 28 A GLU 29 n 29 GLU 29 A SER 30 n 30 SER 30 A TRP 31 n 31 TRP 31 A ARG 32 n 32 ARG 32 A GLU 33 n 33 GLU 33 A ALA 34 n 34 ALA 34 A ARG 35 n 35 ARG 35 A GLY 36 n 36 GLY 36 A THR 37 n 37 THR 37 A ARG 38 n 38 ARG 38 A ILE 39 n 39 ILE 39 A GLU 40 n 40 GLU 40 A ARG 41 n 41 ARG 41 A GLY 42 n 42 GLY 42 A CYS 43 n 43 CYS 43 A ALA 44 n 44 ALA 44 A ALA 45 n 45 ALA 45 A THR 46 n 46 THR 46 A CYS 47 n 47 CYS 47 A PRO 48 n 48 PRO 48 A LYS 49 n 49 LYS 49 A GLY 50 n 50 GLY 50 A SER 51 n 51 SER 51 A VAL 52 n 52 VAL 52 A TYR 53 n 53 TYR 53 A GLY 54 n 54 GLY 54 A LEU 55 n 55 LEU 55 A TYR 56 n 56 TYR 56 A VAL 57 n 57 VAL 57 A LEU 58 n 58 LEU 58 A CYS 59 n 59 CYS 59 A CYS 60 n 60 CYS 60 A THR 61 n 61 THR 61 A THR 62 n 62 THR 62 A ASP 63 n 63 ASP 63 A ASP 64 n 64 ASP 64 A CYS 65 n 65 CYS 65 A ASN 66 n 66 ASN 66 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 A O ILE 5 A O ILE 5 A N GLU 15 A N GLU 15 A O CYS 60 A O CYS 60 A N CYS 26 A N CYS 26 A N TRP 31 A N TRP 31 A O ARG 38 A O ARG 38 A O CYS 60 A O CYS 60 A N CYS 26 A N CYS 26 A N TYR 25 A N TYR 25 A O ALA 44 A O ALA 44 3 A A H O ARG GLY 32 54 1.55 4 A A HZ1 OD1 LYS ASN 4 66 1.48 6 A A O H THR ASN 62 66 1.53 6 A A H O ASN THR 7 10 1.59 19 A A H O PHE GLY 27 42 1.50 1 A ARG 12 0.118 SIDE CHAIN 1 A ARG 32 0.316 SIDE CHAIN 1 A ARG 35 0.294 SIDE CHAIN 1 A ARG 38 0.195 SIDE CHAIN 2 A ARG 12 0.174 SIDE CHAIN 2 A ARG 32 0.302 SIDE CHAIN 2 A ARG 35 0.314 SIDE CHAIN 2 A ARG 38 0.210 SIDE CHAIN 2 A ARG 41 0.297 SIDE CHAIN 3 A ARG 12 0.227 SIDE CHAIN 3 A ARG 32 0.315 SIDE CHAIN 3 A ARG 35 0.228 SIDE CHAIN 3 A ARG 38 0.212 SIDE CHAIN 3 A ARG 41 0.240 SIDE CHAIN 4 A ARG 12 0.317 SIDE CHAIN 4 A ARG 32 0.314 SIDE CHAIN 4 A ARG 35 0.317 SIDE CHAIN 4 A ARG 38 0.208 SIDE CHAIN 4 A ARG 41 0.134 SIDE CHAIN 5 A ARG 12 0.311 SIDE CHAIN 5 A ARG 32 0.292 SIDE CHAIN 5 A ARG 35 0.306 SIDE CHAIN 5 A ARG 38 0.317 SIDE CHAIN 5 A ARG 41 0.279 SIDE CHAIN 6 A ARG 12 0.277 SIDE CHAIN 6 A ARG 32 0.311 SIDE CHAIN 6 A ARG 35 0.295 SIDE CHAIN 6 A ARG 38 0.127 SIDE CHAIN 6 A ARG 41 0.270 SIDE CHAIN 7 A ARG 12 0.223 SIDE CHAIN 7 A ARG 32 0.317 SIDE CHAIN 7 A ARG 35 0.270 SIDE CHAIN 7 A ARG 38 0.310 SIDE CHAIN 7 A ARG 41 0.250 SIDE CHAIN 8 A ARG 12 0.278 SIDE CHAIN 8 A ARG 32 0.115 SIDE CHAIN 8 A ARG 35 0.317 SIDE CHAIN 8 A ARG 38 0.173 SIDE CHAIN 8 A ARG 41 0.294 SIDE CHAIN 9 A ARG 12 0.285 SIDE CHAIN 9 A ARG 32 0.304 SIDE CHAIN 9 A ARG 35 0.311 SIDE CHAIN 9 A ARG 38 0.242 SIDE CHAIN 9 A ARG 41 0.137 SIDE CHAIN 10 A ARG 12 0.191 SIDE CHAIN 10 A ARG 32 0.152 SIDE CHAIN 10 A ARG 35 0.318 SIDE CHAIN 10 A ARG 38 0.245 SIDE CHAIN 10 A ARG 41 0.317 SIDE CHAIN 11 A ARG 12 0.281 SIDE CHAIN 11 A ARG 32 0.233 SIDE CHAIN 11 A ARG 35 0.141 SIDE CHAIN 11 A ARG 38 0.317 SIDE CHAIN 11 A ARG 41 0.186 SIDE CHAIN 12 A ARG 12 0.300 SIDE CHAIN 12 A ARG 32 0.311 SIDE CHAIN 12 A ARG 35 0.226 SIDE CHAIN 12 A ARG 41 0.208 SIDE CHAIN 13 A ARG 12 0.262 SIDE CHAIN 13 A ARG 32 0.207 SIDE CHAIN 13 A ARG 35 0.302 SIDE CHAIN 13 A ARG 38 0.290 SIDE CHAIN 13 A ARG 41 0.305 SIDE CHAIN 14 A ARG 12 0.268 SIDE CHAIN 14 A ARG 32 0.095 SIDE CHAIN 14 A ARG 35 0.272 SIDE CHAIN 14 A ARG 38 0.293 SIDE CHAIN 14 A ARG 41 0.280 SIDE CHAIN 15 A ARG 12 0.313 SIDE CHAIN 15 A ARG 32 0.312 SIDE CHAIN 15 A ARG 35 0.317 SIDE CHAIN 15 A ARG 38 0.099 SIDE CHAIN 15 A ARG 41 0.179 SIDE CHAIN 16 A ARG 12 0.268 SIDE CHAIN 16 A ARG 32 0.249 SIDE CHAIN 16 A ARG 35 0.178 SIDE CHAIN 16 A ARG 38 0.215 SIDE CHAIN 16 A ARG 41 0.245 SIDE CHAIN 17 A ARG 12 0.266 SIDE CHAIN 17 A ARG 32 0.285 SIDE CHAIN 17 A ARG 35 0.311 SIDE CHAIN 17 A ARG 38 0.281 SIDE CHAIN 17 A ARG 41 0.197 SIDE CHAIN 18 A ARG 12 0.310 SIDE CHAIN 18 A ARG 32 0.315 SIDE CHAIN 18 A ARG 35 0.229 SIDE CHAIN 18 A ARG 38 0.265 SIDE CHAIN 19 A ARG 12 0.153 SIDE CHAIN 19 A ARG 32 0.137 SIDE CHAIN 19 A ARG 35 0.312 SIDE CHAIN 19 A ARG 38 0.304 SIDE CHAIN 19 A ARG 41 0.317 SIDE CHAIN 1 A THR 10 176.82 46.58 1 A CYS 11 -49.22 90.47 1 A ALA 13 -100.49 -65.42 1 A LYS 17 -148.19 -160.00 1 A CYS 19 -165.19 -45.90 1 A ALA 20 -63.32 82.10 1 A GLU 33 -145.60 -73.77 1 A ALA 34 168.89 -26.82 1 A ARG 41 -121.13 -162.93 1 A ALA 44 -160.25 -142.03 1 A LYS 49 -121.71 -154.48 1 A SER 51 169.64 -52.65 1 A THR 62 72.70 132.45 1 A ASP 63 43.41 102.41 1 A ASP 64 59.86 -72.60 2 A CYS 6 -171.59 130.50 2 A ASN 7 -144.16 -151.81 2 A PHE 8 71.48 58.87 2 A ASP 9 71.85 -42.02 2 A THR 10 -131.25 -134.86 2 A CYS 11 -149.68 53.18 2 A LYS 17 -141.15 -151.64 2 A CYS 19 -151.03 -37.53 2 A PRO 48 -73.88 -163.68 2 A LYS 49 -119.34 -141.63 2 A THR 62 -59.62 -173.82 2 A ASP 63 31.94 69.54 2 A ASP 64 59.10 -73.04 3 A PHE 8 54.30 152.07 3 A ASP 9 71.32 -42.02 3 A ARG 12 -106.57 -91.99 3 A ALA 13 -100.06 79.17 3 A LYS 17 -144.19 -147.54 3 A ARG 41 -115.90 -164.46 3 A ALA 44 -157.08 -153.04 3 A SER 51 -165.57 -148.96 3 A THR 61 -150.26 59.06 3 A THR 62 -145.67 -67.05 3 A ASP 64 57.39 -73.22 4 A CYS 6 -108.03 -169.68 4 A ASN 7 179.00 176.01 4 A ASP 9 49.14 20.07 4 A THR 10 -177.94 -158.20 4 A CYS 11 -108.42 69.07 4 A LYS 17 -146.34 -148.19 4 A CYS 19 -169.28 -151.05 4 A ALA 20 48.85 25.49 4 A GLU 23 171.77 -63.52 4 A LYS 49 -103.53 -167.50 4 A SER 51 -179.01 -47.61 4 A LEU 58 -160.13 118.84 4 A THR 62 62.26 -68.08 4 A ASP 63 168.41 101.88 4 A ASP 64 61.57 -69.53 4 A CYS 65 90.33 38.42 5 A ASN 7 -53.31 -164.65 5 A PHE 8 -69.64 82.63 5 A ASP 9 53.22 16.88 5 A ALA 13 -26.21 88.14 5 A GLU 15 -104.71 68.52 5 A CYS 19 -175.74 -37.59 5 A ALA 20 -62.36 82.06 5 A GLU 23 -116.23 73.78 5 A PRO 48 -75.17 -166.93 5 A LYS 49 -123.72 -155.75 5 A SER 51 -161.25 -167.26 5 A THR 62 53.04 103.54 5 A ASP 63 66.54 135.21 5 A ASP 64 62.13 -73.08 6 A CYS 6 -118.81 -165.01 6 A ASN 7 -109.13 -154.02 6 A CYS 11 -103.46 45.24 6 A LYS 17 -145.27 -152.20 6 A CYS 19 -143.68 -58.81 6 A ALA 20 -62.27 75.26 6 A SER 21 -165.38 35.03 6 A ARG 32 -111.48 78.95 6 A LYS 49 -91.33 -78.18 6 A TYR 53 -134.33 -51.68 6 A THR 61 -143.05 42.96 6 A ASP 63 -31.54 135.72 6 A ASP 64 67.97 -73.15 7 A CYS 6 -113.67 -91.30 7 A ASN 7 -168.45 -152.34 7 A CYS 11 -141.05 55.27 7 A ALA 13 -99.80 -76.90 7 A LYS 17 -140.32 -153.22 7 A CYS 19 -129.88 -70.46 7 A ALA 20 -69.05 69.67 7 A SER 21 -96.41 31.59 7 A GLU 23 -168.75 47.38 7 A ARG 41 -118.69 -166.71 7 A CYS 47 37.13 58.75 7 A LYS 49 -168.80 -160.26 7 A SER 51 -150.63 -83.77 7 A VAL 52 -88.87 32.90 7 A THR 62 56.78 110.16 7 A ASP 63 61.38 130.99 7 A ASP 64 66.99 -72.80 8 A CYS 6 -97.00 -156.46 8 A ASP 9 67.81 -42.26 8 A CYS 11 -108.83 47.34 8 A LYS 17 -156.48 -136.57 8 A CYS 19 -160.55 -82.79 8 A ALA 20 -61.50 93.44 8 A GLU 33 -170.89 -163.54 8 A ARG 41 -129.14 -166.93 8 A ALA 45 -154.36 16.37 8 A CYS 47 37.84 93.04 8 A PRO 48 -73.81 -163.38 8 A LYS 49 -119.80 -164.18 8 A SER 51 177.78 148.28 8 A VAL 52 55.38 -87.56 8 A THR 62 62.49 100.88 8 A ASP 63 61.51 140.59 8 A ASP 64 60.38 -72.80 9 A CYS 6 -165.81 -141.78 9 A THR 10 177.96 58.39 9 A ALA 13 -99.96 -76.78 9 A LYS 17 -144.15 -146.15 9 A CYS 19 -164.75 -68.06 9 A ALA 20 -66.19 75.21 9 A SER 21 -148.15 26.44 9 A GLU 23 -106.77 -79.60 9 A ALA 45 -156.22 18.69 9 A CYS 47 34.54 87.57 9 A PRO 48 -73.28 -161.83 9 A SER 51 171.38 -88.88 9 A THR 61 -160.66 57.48 9 A THR 62 -165.62 91.30 9 A ASP 63 58.52 143.42 9 A ASP 64 57.46 -73.11 10 A CYS 6 174.75 146.05 10 A THR 10 179.71 50.92 10 A CYS 11 179.67 112.72 10 A ARG 12 -88.82 -149.52 10 A ALA 13 -66.23 65.83 10 A LYS 17 -140.82 -140.44 10 A CYS 19 -173.47 47.95 10 A GLU 23 -92.14 47.71 10 A CYS 47 44.78 75.63 10 A LYS 49 -116.39 -169.44 10 A LEU 55 -160.23 117.03 10 A THR 62 57.82 112.24 10 A ASP 63 62.70 130.48 10 A ASP 64 61.64 -72.95 11 A CYS 6 -173.35 34.19 11 A ASN 7 56.12 108.14 11 A THR 10 179.04 59.35 11 A CYS 11 -69.22 89.48 11 A LYS 17 -139.91 -153.95 11 A CYS 19 -159.34 -157.58 11 A ALA 20 48.04 23.16 11 A LYS 49 -179.31 -156.09 11 A THR 61 -161.03 61.01 11 A THR 62 -166.62 85.02 11 A ASP 63 60.59 145.45 11 A ASP 64 59.30 -73.09 12 A ASN 7 -155.97 -146.67 12 A PHE 8 71.83 59.74 12 A ASP 9 55.17 16.50 12 A THR 10 178.91 -177.42 12 A CYS 11 -108.93 45.33 12 A LYS 17 -150.96 -136.93 12 A CYS 19 -143.31 -69.10 12 A ALA 20 -63.13 79.12 12 A SER 21 -147.24 13.28 12 A CYS 47 40.77 82.60 12 A LYS 49 -94.49 -155.12 12 A TYR 53 -59.51 -72.44 12 A THR 61 -157.05 89.47 12 A THR 62 -177.42 -43.09 12 A ASP 63 -176.45 149.22 12 A ASP 64 60.72 -73.15 13 A LYS 2 -160.35 -169.92 13 A ASN 7 -139.20 -137.09 13 A THR 10 177.79 -141.14 13 A LYS 17 -160.40 -155.79 13 A CYS 19 -163.09 45.06 13 A ALA 20 -151.09 48.75 13 A GLU 23 -154.03 62.35 13 A ARG 41 -120.78 -163.11 13 A ALA 45 -151.54 17.62 13 A CYS 47 36.30 83.44 13 A PRO 48 -72.59 -168.01 13 A SER 51 -161.37 -163.55 13 A THR 62 62.72 145.88 13 A ASP 63 33.64 101.41 13 A ASP 64 59.46 -72.86 14 A PHE 8 -58.71 99.93 14 A ASP 9 75.42 -41.07 14 A CYS 11 -111.46 61.23 14 A ALA 13 -100.24 -65.97 14 A LYS 17 -149.20 -140.10 14 A CYS 19 175.53 -162.50 14 A GLU 33 -125.46 -161.45 14 A TYR 53 -175.55 65.92 14 A VAL 57 -161.95 110.62 14 A CYS 60 -159.58 -158.40 14 A THR 62 43.92 -164.94 14 A ASP 63 -50.69 107.55 14 A ASP 64 55.92 -73.11 14 A CYS 65 -146.10 21.45 15 A ASN 7 -145.47 -145.83 15 A ASP 9 74.72 -40.89 15 A THR 10 -148.62 -158.82 15 A CYS 11 -100.48 69.07 15 A CYS 19 -168.29 -36.02 15 A GLU 33 -159.64 -78.59 15 A ALA 34 171.71 -28.44 15 A ALA 45 -141.94 10.36 15 A CYS 47 36.33 89.26 15 A PRO 48 -74.78 -163.11 15 A LYS 49 -106.35 -140.61 15 A SER 51 172.29 -85.85 15 A THR 62 72.37 131.90 15 A ASP 63 43.46 105.20 15 A ASP 64 59.82 -73.41 16 A CYS 6 -155.34 20.68 16 A ASN 7 49.57 81.93 16 A PHE 8 -42.63 166.52 16 A ASP 9 73.72 -3.35 16 A THR 10 174.28 75.56 16 A CYS 11 -47.12 95.71 16 A ALA 13 -100.38 -83.00 16 A CYS 19 -165.98 -150.46 16 A SER 21 -62.92 -84.52 16 A ARG 41 -114.59 -166.17 16 A ALA 45 -159.32 18.79 16 A CYS 47 37.10 90.34 16 A PRO 48 -73.85 -160.62 16 A TYR 53 -160.76 66.09 16 A THR 61 -158.46 59.88 16 A THR 62 -144.47 -76.82 16 A ASP 64 61.35 -72.90 17 A ASN 7 -178.07 -160.20 17 A ASP 9 70.67 -42.68 17 A THR 10 -131.21 -95.99 17 A CYS 11 -154.10 82.72 17 A ALA 13 -94.73 -70.73 17 A LYS 17 -147.79 -152.85 17 A CYS 19 179.41 31.86 17 A SER 21 -176.84 85.00 17 A GLU 23 -176.91 -45.06 17 A LYS 24 -102.21 -156.38 17 A ALA 44 -160.56 -160.01 17 A ALA 45 -142.95 16.64 17 A CYS 47 49.35 70.55 17 A SER 51 174.14 -75.53 17 A THR 62 -163.05 -74.93 17 A ASP 64 61.09 -72.32 18 A CYS 6 -174.73 40.26 18 A ASN 7 41.81 92.12 18 A PHE 8 -45.08 165.12 18 A THR 10 175.25 71.67 18 A LYS 17 -157.34 -141.69 18 A CYS 19 -160.31 -37.01 18 A ALA 20 -62.59 74.43 18 A GLU 23 -156.71 21.16 18 A PRO 48 -73.95 -161.93 18 A LYS 49 -123.49 -62.54 18 A VAL 52 62.96 -69.40 18 A TYR 53 -148.78 56.36 18 A THR 62 62.22 147.42 18 A ASP 63 37.23 98.06 18 A ASP 64 59.21 -72.56 19 A CYS 6 -163.53 111.65 19 A ASN 7 -44.26 152.21 19 A THR 10 -176.99 48.17 19 A CYS 11 -44.09 97.34 19 A ALA 13 -100.63 -67.91 19 A LYS 17 -148.29 -139.14 19 A CYS 19 172.58 -60.66 19 A ALA 20 -68.38 77.46 19 A VAL 52 63.65 -67.65 19 A TYR 53 -153.91 56.21 19 A THR 61 -150.15 45.25 19 A ASP 64 62.73 -72.59 SOLUTION STRUCTURE OF CANDOXIN 1 N N disulf 2.021 A CYS 3 A SG CYS 3 1_555 A CYS 26 A SG CYS 26 1_555 disulf 2.019 A CYS 6 A SG CYS 6 1_555 A CYS 11 A SG CYS 11 1_555 disulf 2.019 A CYS 19 A SG CYS 19 1_555 A CYS 43 A SG CYS 43 1_555 disulf 2.020 A CYS 47 A SG CYS 47 1_555 A CYS 59 A SG CYS 59 1_555 disulf 2.017 A CYS 60 A SG CYS 60 1_555 A CYS 65 A SG CYS 65 1_555 TOXIN beta sheet, snake venom protein, Bungarus candidus, TOXIN CADO_BUNCA UNP 1 1 P81783 MKCKICNFDTCRAGELKVCASGEKYCFKESWREARGTRIERGCAATCPKGSVYGLYVLCCTTDDCN 1 66 1JGK 1 66 P81783 A 1 1 66 2 3 3 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A LYS 2 A LYS 2 A ILE 5 A ILE 5 A GLU 15 A GLU 15 A VAL 18 A VAL 18 A TYR 56 A TYR 56 A CYS 60 A CYS 60 A TYR 25 A TYR 25 A TRP 31 A TRP 31 A ARG 38 A ARG 38 A GLU 40 A GLU 40 A TYR 56 A TYR 56 A CYS 60 A CYS 60 A TYR 25 A TYR 25 A TRP 31 A TRP 31 A CYS 43 A CYS 43 A ALA 44 A ALA 44