1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Lee, C.W. Takeuchi, K. Takahashi, H. Sato, K. Shimada, I. Kim, D.H. Kim, J.I. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 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 H10 N3 O2 1 156.162 y HISTIDINE 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 H9 N O2 115.130 y PROLINE L-peptide linking C4 H9 N O3 119.119 y THREONINE L-peptide linking UK Biochem.J. BIJOAK 0043 0264-6021 377 385 394 10.1042/BJ20031192 14535845 Molecular basis of the high-affinity activation of type 1 ryanodine receptors by imperatoxin A. 2004 10.2210/pdb1ie6/pdb pdb_00001ie6 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 3776.495 IMPERATOXIN A 1 syn polymer PEPTIDE NEUROTOXIN, RYANODINE RECEPTOR ACTIVATOR no no GDCLPHLKRCKADNDCCGKKCKRRGTNAEKRCR GDCLPHLKRCKADNDCCGKKCKRRGTNAEKRCR 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 database_2 pdbx_nmr_software pdbx_struct_assembly pdbx_struct_oper_list repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 2003-06-10 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 SEQUENCE The sequence of this protein was published in a journal (Zamudio, F. Z., et al. 1997, FEBS Lett. 405, 385-389). RCSB Y RCSB 2001-04-07 REL REL The peptide was chemically synthesized. This sequence occurs naturally in the venom of scorpion Pandinus imperator. sample This structure was determined using standard 2D homonuclear techniques. The submitted conformer models are those with the lowest energy and the least restraint violations. 100 20 2D NOESY DQF-COSY E-COSY 0 3.4 ambient 300 K The structures are based on a total of 519 restraints, 473 are NOE-derived distance constraints, 25 dihedral angle restraints, 12 distance restraints from hydrogen bonds, and 9 distance restraints form disulfide bonds. distance geometry simulated annealing 11 closest to the average 5mM Imperatoxin A; 90% H2O, 10% D2O 90% H2O/10% D2O Bruker collection XwinNMR 3.0 Bruker processing XwinNMR 3.0 Brunger structure solution X-PLOR 3.851 Brunger refinement X-PLOR 3.851 600 Bruker DRX GLY 1 n 1 GLY 1 A ASP 2 n 2 ASP 2 A CYS 3 n 3 CYS 3 A LEU 4 n 4 LEU 4 A PRO 5 n 5 PRO 5 A HIS 6 n 6 HIS 6 A LEU 7 n 7 LEU 7 A LYS 8 n 8 LYS 8 A ARG 9 n 9 ARG 9 A CYS 10 n 10 CYS 10 A LYS 11 n 11 LYS 11 A ALA 12 n 12 ALA 12 A ASP 13 n 13 ASP 13 A ASN 14 n 14 ASN 14 A ASP 15 n 15 ASP 15 A CYS 16 n 16 CYS 16 A CYS 17 n 17 CYS 17 A GLY 18 n 18 GLY 18 A LYS 19 n 19 LYS 19 A LYS 20 n 20 LYS 20 A CYS 21 n 21 CYS 21 A LYS 22 n 22 LYS 22 A ARG 23 n 23 ARG 23 A ARG 24 n 24 ARG 24 A GLY 25 n 25 GLY 25 A THR 26 n 26 THR 26 A ASN 27 n 27 ASN 27 A ALA 28 n 28 ALA 28 A GLU 29 n 29 GLU 29 A LYS 30 n 30 LYS 30 A ARG 31 n 31 ARG 31 A CYS 32 n 32 CYS 32 A ARG 33 n 33 ARG 33 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 A H O LEU ASP 4 15 1.49 1 A A O H LYS LYS 22 30 1.49 1 A A O HH21 CYS ARG 21 23 1.55 2 A A H O LEU ASP 4 15 1.47 3 A A H O LEU ASP 4 15 1.58 3 A A O H LEU CYS 4 17 1.59 4 A A H O LEU ASP 4 15 1.43 4 A A O H ALA ASP 12 15 1.50 4 A A O H LYS LYS 22 30 1.55 5 A A O H ALA ASP 12 15 1.59 6 A A O H LEU CYS 4 17 1.54 7 A A O H LYS LYS 22 30 1.49 8 A A H O LEU ASP 4 15 1.54 9 A A H O LEU ASP 4 15 1.48 9 A A O H LYS LYS 22 30 1.52 10 A A H O LEU ASP 4 15 1.45 10 A A O H ALA ASP 12 15 1.47 10 A A O HD21 THR ASN 26 27 1.52 12 A A H O LEU ASP 4 15 1.47 15 A A H O LEU ASP 4 15 1.50 16 A A H O LEU ASP 4 15 1.53 17 A A H O LEU ASP 4 15 1.45 17 A A O H ALA ASP 12 15 1.52 18 A A H O LEU ASP 4 15 1.46 19 A A O H ALA ASP 12 15 1.50 19 A A O H LEU CYS 4 17 1.53 20 A A H O LEU ASP 4 15 1.44 20 A A O H LYS LYS 22 30 1.53 20 A A O H LEU CYS 4 17 1.58 1 A ARG 24 0.309 SIDE CHAIN 1 A ARG 31 0.310 SIDE CHAIN 1 A ARG 33 0.268 SIDE CHAIN 2 A ARG 9 0.311 SIDE CHAIN 2 A ARG 23 0.241 SIDE CHAIN 2 A ARG 24 0.117 SIDE CHAIN 2 A ARG 31 0.137 SIDE CHAIN 2 A ARG 33 0.240 SIDE CHAIN 3 A ARG 9 0.309 SIDE CHAIN 3 A ARG 23 0.200 SIDE CHAIN 3 A ARG 24 0.243 SIDE CHAIN 3 A ARG 31 0.110 SIDE CHAIN 3 A ARG 33 0.190 SIDE CHAIN 4 A ARG 9 0.132 SIDE CHAIN 4 A ARG 23 0.307 SIDE CHAIN 4 A ARG 24 0.283 SIDE CHAIN 4 A ARG 31 0.117 SIDE CHAIN 4 A ARG 33 0.266 SIDE CHAIN 5 A ARG 9 0.184 SIDE CHAIN 5 A ARG 24 0.313 SIDE CHAIN 5 A ARG 31 0.304 SIDE CHAIN 5 A ARG 33 0.133 SIDE CHAIN 6 A ARG 9 0.211 SIDE CHAIN 6 A ARG 23 0.302 SIDE CHAIN 6 A ARG 24 0.247 SIDE CHAIN 6 A ARG 31 0.243 SIDE CHAIN 6 A ARG 33 0.225 SIDE CHAIN 7 A ARG 9 0.288 SIDE CHAIN 7 A ARG 23 0.095 SIDE CHAIN 7 A ARG 24 0.315 SIDE CHAIN 7 A ARG 31 0.312 SIDE CHAIN 7 A ARG 33 0.277 SIDE CHAIN 8 A ARG 9 0.237 SIDE CHAIN 8 A ARG 23 0.234 SIDE CHAIN 8 A ARG 24 0.288 SIDE CHAIN 8 A ARG 31 0.288 SIDE CHAIN 8 A ARG 33 0.226 SIDE CHAIN 9 A ARG 9 0.317 SIDE CHAIN 9 A ARG 23 0.080 SIDE CHAIN 9 A ARG 24 0.123 SIDE CHAIN 9 A ARG 31 0.272 SIDE CHAIN 9 A ARG 33 0.284 SIDE CHAIN 10 A ARG 9 0.202 SIDE CHAIN 10 A ARG 23 0.228 SIDE CHAIN 10 A ARG 24 0.318 SIDE CHAIN 10 A ARG 31 0.115 SIDE CHAIN 10 A ARG 33 0.265 SIDE CHAIN 11 A ARG 9 0.306 SIDE CHAIN 11 A ARG 23 0.315 SIDE CHAIN 11 A ARG 24 0.232 SIDE CHAIN 11 A ARG 31 0.317 SIDE CHAIN 11 A ARG 33 0.314 SIDE CHAIN 12 A ARG 9 0.197 SIDE CHAIN 12 A ARG 23 0.299 SIDE CHAIN 12 A ARG 24 0.299 SIDE CHAIN 12 A ARG 33 0.204 SIDE CHAIN 13 A ARG 9 0.274 SIDE CHAIN 13 A ARG 23 0.306 SIDE CHAIN 13 A ARG 24 0.309 SIDE CHAIN 13 A ARG 31 0.292 SIDE CHAIN 13 A ARG 33 0.205 SIDE CHAIN 14 A ARG 9 0.244 SIDE CHAIN 14 A ARG 24 0.219 SIDE CHAIN 14 A ARG 31 0.245 SIDE CHAIN 14 A ARG 33 0.308 SIDE CHAIN 15 A ARG 9 0.310 SIDE CHAIN 15 A ARG 23 0.228 SIDE CHAIN 15 A ARG 24 0.224 SIDE CHAIN 15 A ARG 31 0.314 SIDE CHAIN 15 A ARG 33 0.192 SIDE CHAIN 16 A ARG 9 0.318 SIDE CHAIN 16 A ARG 23 0.306 SIDE CHAIN 16 A ARG 24 0.299 SIDE CHAIN 16 A ARG 31 0.288 SIDE CHAIN 16 A ARG 33 0.121 SIDE CHAIN 17 A ARG 9 0.123 SIDE CHAIN 17 A ARG 23 0.317 SIDE CHAIN 17 A ARG 24 0.201 SIDE CHAIN 17 A ARG 31 0.300 SIDE CHAIN 17 A ARG 33 0.193 SIDE CHAIN 18 A ARG 9 0.307 SIDE CHAIN 18 A ARG 23 0.249 SIDE CHAIN 18 A ARG 24 0.149 SIDE CHAIN 18 A ARG 31 0.306 SIDE CHAIN 18 A ARG 33 0.319 SIDE CHAIN 19 A ARG 9 0.240 SIDE CHAIN 19 A ARG 23 0.308 SIDE CHAIN 19 A ARG 24 0.318 SIDE CHAIN 19 A ARG 31 0.255 SIDE CHAIN 19 A ARG 33 0.263 SIDE CHAIN 20 A ARG 9 0.132 SIDE CHAIN 20 A ARG 23 0.315 SIDE CHAIN 20 A ARG 24 0.277 SIDE CHAIN 20 A ARG 33 0.154 SIDE CHAIN 1 A LEU 7 -161.67 13.85 1 A ASN 14 -90.75 45.39 1 A ARG 24 -98.22 52.83 1 A ASN 27 57.06 119.25 1 A ALA 28 -159.32 -64.29 1 A GLU 29 159.77 59.82 1 A LYS 30 -96.22 -73.85 2 A HIS 6 -90.63 37.15 2 A LEU 7 -161.84 18.00 2 A ARG 24 -161.07 49.76 2 A THR 26 38.39 51.61 2 A ASN 27 40.75 -150.82 2 A ALA 28 78.36 -123.08 2 A CYS 32 -58.59 93.27 3 A ASP 2 64.93 60.81 3 A HIS 6 -85.57 34.65 3 A LEU 7 -155.24 48.77 3 A ASN 14 -90.90 54.01 3 A ARG 24 -154.19 53.27 3 A THR 26 39.40 37.74 3 A ASN 27 26.90 100.45 3 A ALA 28 -143.49 -39.76 3 A GLU 29 -179.19 96.88 3 A LYS 30 -117.37 -87.89 4 A HIS 6 -89.36 33.23 4 A LEU 7 -162.41 16.60 4 A ARG 24 -91.53 49.70 4 A ASN 27 51.38 139.34 4 A ALA 28 167.83 -54.94 4 A GLU 29 -179.46 54.20 4 A LYS 30 -108.19 -86.15 5 A ASP 2 -102.28 56.81 5 A HIS 6 -87.77 38.84 5 A LEU 7 -156.35 28.87 5 A THR 26 -145.34 59.60 5 A ASN 27 58.21 140.02 5 A ALA 28 169.85 -49.19 5 A GLU 29 171.56 74.20 5 A LYS 30 -126.60 -87.05 6 A ASP 2 174.04 115.84 6 A HIS 6 -88.65 35.02 6 A LEU 7 -161.11 15.03 6 A LYS 19 56.27 18.86 6 A THR 26 -179.63 58.25 6 A ASN 27 56.58 118.74 6 A ALA 28 -178.31 -33.92 6 A GLU 29 165.97 70.64 6 A LYS 30 -133.88 -87.23 7 A CYS 3 -155.84 -150.08 7 A HIS 6 -90.47 32.68 7 A LEU 7 -161.82 16.18 7 A ASN 14 -90.85 48.02 7 A ARG 24 -102.80 62.07 7 A THR 26 41.08 90.91 7 A ASN 27 -22.08 139.25 7 A ALA 28 -158.24 -76.51 7 A GLU 29 163.85 68.83 7 A LYS 30 -85.36 -73.85 8 A ASP 2 -57.21 109.01 8 A CYS 3 -47.33 173.94 8 A HIS 6 -86.43 35.66 8 A LEU 7 -161.46 15.46 8 A ASN 14 -90.49 45.16 8 A THR 26 -115.10 56.38 8 A ASN 27 55.79 144.32 8 A ALA 28 173.00 -61.23 8 A GLU 29 176.80 63.22 8 A LYS 30 -105.15 -83.91 9 A ASP 2 43.64 74.52 9 A LEU 7 -161.98 11.09 9 A ASN 14 -90.68 33.75 9 A ARG 23 -128.94 -166.30 9 A ASN 27 62.51 148.81 9 A ALA 28 173.00 -79.71 9 A GLU 29 163.65 82.06 9 A LYS 30 -96.06 -73.60 10 A HIS 6 -89.99 33.42 10 A LEU 7 -162.26 25.07 10 A ARG 9 -47.54 153.21 10 A ARG 24 -82.16 49.88 10 A THR 26 -101.81 52.92 10 A ASN 27 57.17 154.58 10 A ALA 28 173.17 -57.50 10 A GLU 29 169.18 58.40 10 A LYS 30 -95.41 -88.64 11 A HIS 6 -87.27 35.96 11 A LEU 7 -161.11 16.20 11 A ASN 14 -90.56 53.29 11 A LYS 19 59.32 17.61 11 A THR 26 38.20 37.62 11 A ASN 27 53.37 163.41 11 A ALA 28 167.76 -67.67 11 A GLU 29 -171.67 78.13 11 A LYS 30 -116.46 -84.66 12 A HIS 6 -87.76 34.74 12 A LEU 7 -160.96 -0.79 12 A LYS 19 57.91 16.93 12 A THR 26 -154.25 84.48 12 A ASN 27 39.33 112.92 12 A ALA 28 -161.49 -49.05 12 A GLU 29 169.21 55.27 12 A LYS 30 -113.53 -76.62 13 A ASP 2 -178.46 98.40 13 A HIS 6 -88.48 33.13 13 A LEU 7 -160.11 51.09 13 A ASN 14 -90.28 38.02 13 A ARG 24 -162.35 40.72 13 A THR 26 -151.06 76.21 13 A ASN 27 61.90 -158.81 13 A ALA 28 71.42 -116.57 13 A GLU 29 -173.18 141.10 14 A ASP 2 56.32 84.66 14 A HIS 6 -90.39 34.05 14 A LEU 7 -162.29 18.48 14 A ASN 14 -90.92 54.70 14 A LYS 20 -160.27 79.47 14 A ARG 24 -160.18 44.35 14 A ASN 27 63.22 -156.69 14 A ALA 28 75.18 -118.50 14 A GLU 29 -174.97 143.53 14 A LYS 30 -120.93 -63.13 15 A CYS 3 -47.82 175.67 15 A HIS 6 -87.73 36.48 15 A LEU 7 -161.83 18.45 15 A THR 26 -150.41 79.54 15 A ASN 27 38.69 113.14 15 A ALA 28 -159.87 -50.19 15 A GLU 29 178.51 61.47 15 A LYS 30 -117.24 -85.34 15 A CYS 32 -58.17 101.11 16 A PRO 5 -66.50 -178.80 16 A LEU 7 -162.40 -4.39 16 A LYS 19 58.81 16.72 16 A THR 26 -144.29 51.75 16 A ASN 27 59.88 128.58 16 A ALA 28 171.64 -35.79 16 A GLU 29 166.43 94.63 16 A LYS 30 -154.32 -87.39 17 A HIS 6 -88.70 35.13 17 A LEU 7 -161.54 19.31 17 A ASN 27 55.67 143.53 17 A ALA 28 170.98 -54.34 17 A GLU 29 170.14 72.94 17 A LYS 30 -121.97 -86.76 18 A ASP 2 -156.14 56.14 18 A HIS 6 -86.62 35.96 18 A LEU 7 -163.18 21.33 18 A THR 26 39.90 92.90 18 A ASN 27 -21.83 140.79 18 A ALA 28 -177.61 -45.19 18 A GLU 29 -179.61 55.94 18 A LYS 30 -122.15 -94.95 19 A ASP 2 63.80 100.34 19 A HIS 6 -88.05 32.12 19 A LEU 7 -154.97 31.92 19 A ARG 24 -91.56 59.62 19 A ASN 27 59.61 141.01 19 A ALA 28 173.38 -67.59 19 A GLU 29 172.36 58.99 19 A LYS 30 -103.64 -85.28 20 A LEU 7 -162.50 47.17 20 A LYS 19 56.74 18.26 20 A THR 26 36.17 38.02 20 A ASN 27 16.55 52.92 20 A GLU 29 -176.87 67.72 20 A LYS 30 -79.06 -72.21 SOLUTION STRUCTURE OF IMPERATOXIN A 1 N N A ALA 12 A ALA 12 HELX_P A ASP 15 A ASP 15 5 1 4 disulf 2.021 A CYS 3 A SG CYS 3 1_555 A CYS 17 A SG CYS 17 1_555 disulf 2.021 A CYS 10 A SG CYS 10 1_555 A CYS 21 A SG CYS 21 1_555 disulf 2.019 A CYS 16 A SG CYS 16 1_555 A CYS 32 A SG CYS 32 1_555 TOXIN Triple stranded antiparellel beta-sheet, inhibitory cystine knot, TOXIN IPTXA_PANIM UNP 1 1 P59868 1 33 1IE6 1 33 P59868 A 1 1 33