1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Torres, A.M. Paramjit, B. Alewood, P. Kuchel, P.W. Vandenberg, 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 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 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 C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking NE FEBS Lett. FEBLAL 0165 0014-5793 539 138 142 10.1016/S0014-5793(03)00216-3 12650941 Solution structure of CnErg1 (Ergtoxin), a HERG specific scorpion toxin 2003 US FASEB J. FAJOEC 2074 0892-6638 13 953 962 A toxin to nervous, cardiac, and endocrine ERG K+ channels isolated from Centruroides noxius scorpion venom. 1999 NE FEBS Lett. FEBLAL 0165 0014-5793 479 156 157 10.1016/S0014-5793(00)01891-3 Disulfide bridges of ergtoxin, a member of a new sub-family of peptide blockers of the ether-a-go-go-related K+ channel 2000 10.2210/pdb1ne5/pdb pdb_00001ne5 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 4746.415 ergtoxin 1 syn polymer CnErg1, ErgTx no no DRDSCVDKSRCAKYGYYQECQDCCKNAGHNGGTCMFFKCKCA DRDSCVDKSRCAKYGYYQECQDCCKNAGHNGGTCMFFKCKCA 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 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 2003-04-01 1 1 2008-04-28 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 RCSB Y PDBJ 2002-12-10 REL REL This sequence occurs naturally in Centruroides noxius sample This structure were determined using standard 2D homonuclear techniques. structures with the lowest energy 4000 20 2D NOESY no salt added 3.2 ambient 298 K The structures are based on a total of 578 restraints, 535 are NOE-derived distance restraints, 11 dihedral angle restraints, 32 distance restraints from hydrogen bonds. simulated annealing, molecular dynamics, distance geometry, torsion angle dynamics 4 closest to the average 1.7mM CnErg1 90% H2O/10% D2O Bruker processing XwinNMR 3.1 Bartels, C., Xia, T., Billeter, M., Guntert, P., Wuthrich,K. data analysis XEASY 1.3.13 Szyperski, I., Guntert, P., Otting, G., Wuthrich, K. data analysis INFIT Mumenthaler, C., Guntert, P., Braun, W., Wuthrich, K. structure solution NOAH Guntert, P., Mumenthaler, C., Wuthrich, K. structure solution DYANA 1.5 refinement CNS 1.1 600 Bruker AVANCE ASP 1 n 1 ASP 1 A ARG 2 n 2 ARG 2 A ASP 3 n 3 ASP 3 A SER 4 n 4 SER 4 A CYS 5 n 5 CYS 5 A VAL 6 n 6 VAL 6 A ASP 7 n 7 ASP 7 A LYS 8 n 8 LYS 8 A SER 9 n 9 SER 9 A ARG 10 n 10 ARG 10 A CYS 11 n 11 CYS 11 A ALA 12 n 12 ALA 12 A LYS 13 n 13 LYS 13 A TYR 14 n 14 TYR 14 A GLY 15 n 15 GLY 15 A TYR 16 n 16 TYR 16 A TYR 17 n 17 TYR 17 A GLN 18 n 18 GLN 18 A GLU 19 n 19 GLU 19 A CYS 20 n 20 CYS 20 A GLN 21 n 21 GLN 21 A ASP 22 n 22 ASP 22 A CYS 23 n 23 CYS 23 A CYS 24 n 24 CYS 24 A LYS 25 n 25 LYS 25 A ASN 26 n 26 ASN 26 A ALA 27 n 27 ALA 27 A GLY 28 n 28 GLY 28 A HIS 29 n 29 HIS 29 A ASN 30 n 30 ASN 30 A GLY 31 n 31 GLY 31 A GLY 32 n 32 GLY 32 A THR 33 n 33 THR 33 A CYS 34 n 34 CYS 34 A MET 35 n 35 MET 35 A PHE 36 n 36 PHE 36 A PHE 37 n 37 PHE 37 A LYS 38 n 38 LYS 38 A CYS 39 n 39 CYS 39 A LYS 40 n 40 LYS 40 A CYS 41 n 41 CYS 41 A ALA 42 n 42 ALA 42 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 N GLY 15 A N GLY 15 A O CYS 34 A O CYS 34 A N THR 33 A N THR 33 A O LYS 40 A O LYS 40 1 A ARG 2 -148.45 47.63 1 A ASP 3 -66.59 -74.52 1 A SER 4 57.93 95.52 1 A LYS 8 -131.53 -53.62 1 A ARG 10 -64.89 -165.25 1 A TYR 14 176.78 161.41 1 A HIS 29 -139.04 -151.88 1 A PHE 37 58.93 18.97 2 A ARG 2 -178.53 107.78 2 A ASP 3 -69.48 -71.05 2 A SER 4 58.27 93.72 2 A TYR 14 174.35 156.84 2 A HIS 29 -141.47 -150.64 3 A ARG 2 -177.97 107.33 3 A ASP 3 -133.91 -71.55 3 A SER 4 56.86 100.54 3 A TYR 14 174.52 166.54 3 A HIS 29 -134.95 -148.34 4 A SER 4 62.03 103.36 4 A LYS 8 -130.00 -51.75 4 A ARG 10 -59.02 -164.63 4 A TYR 14 171.54 160.47 4 A HIS 29 -140.34 -150.94 5 A ARG 2 -116.65 60.93 5 A TYR 14 176.68 162.83 5 A HIS 29 -140.24 -150.98 6 A ARG 2 -179.24 107.75 6 A ASP 3 -121.24 -79.27 6 A SER 4 51.23 91.67 6 A LYS 8 -125.75 -50.75 6 A TYR 14 171.42 165.26 6 A HIS 29 -102.71 -147.49 6 A PHE 36 45.37 71.75 7 A ASP 3 -85.07 -71.64 7 A SER 4 50.03 84.94 7 A LYS 8 -132.62 -55.50 7 A TYR 14 172.59 153.68 7 A HIS 29 -140.69 -151.11 8 A ARG 2 52.99 93.42 8 A ASP 3 -81.57 -73.37 8 A SER 4 54.39 82.39 8 A LYS 8 -126.09 -65.58 8 A ARG 10 -77.23 -165.09 8 A TYR 14 176.21 153.32 8 A HIS 29 -140.03 -150.27 9 A ASP 3 -59.07 -70.06 9 A SER 4 55.63 99.54 9 A LYS 8 -137.39 -58.64 9 A ARG 10 -58.19 -164.87 9 A TYR 14 178.76 168.34 9 A HIS 29 -139.51 -150.20 9 A MET 35 -102.75 -162.88 9 A PHE 36 -53.69 70.09 10 A ASP 3 -98.44 -82.50 10 A TYR 14 174.16 155.12 10 A HIS 29 -137.19 -151.39 10 A PHE 36 43.46 75.85 11 A ASP 3 -91.23 -81.65 11 A SER 4 53.06 97.85 11 A HIS 29 -94.70 -146.68 12 A ARG 2 -148.96 51.42 12 A ASP 3 -63.78 -76.99 12 A SER 4 54.59 85.71 12 A LYS 8 -128.78 -50.54 12 A TYR 14 173.82 160.56 12 A HIS 29 -138.16 -151.58 13 A ARG 2 64.14 108.42 13 A ASP 3 -87.07 -76.29 13 A SER 4 60.82 102.68 13 A LYS 8 -128.61 -59.41 13 A TYR 14 171.68 158.85 13 A HIS 29 -138.53 -152.13 14 A ARG 2 -178.14 107.38 14 A ASP 3 -82.03 -74.00 14 A SER 4 54.62 90.88 14 A TYR 14 171.66 161.67 14 A HIS 29 -100.48 -147.49 15 A ARG 2 -98.40 37.45 15 A ASP 3 -60.61 -73.22 15 A SER 4 -175.05 -108.10 15 A CYS 5 -175.36 -32.62 15 A LYS 8 -134.70 -52.69 15 A TYR 14 172.98 164.18 15 A HIS 29 -139.36 -151.99 16 A ARG 2 -177.36 107.36 16 A ASP 3 -67.53 -71.12 16 A SER 4 60.15 92.32 16 A LYS 8 -131.27 -50.64 16 A ARG 10 -54.99 -179.18 16 A TYR 14 172.17 161.97 16 A HIS 29 -130.77 -153.57 17 A ARG 2 56.92 103.76 17 A SER 4 57.22 96.56 17 A TYR 14 176.12 164.25 17 A HIS 29 -138.41 -150.56 17 A PHE 36 45.32 73.15 18 A ARG 2 70.67 113.82 18 A SER 4 60.18 91.92 18 A TYR 14 177.16 148.52 18 A TYR 17 -161.25 113.43 18 A HIS 29 -142.42 -150.84 19 A ARG 2 -179.49 108.92 19 A ASP 3 -83.69 -78.75 19 A SER 4 56.57 72.03 19 A LYS 8 -134.54 -46.38 19 A TYR 14 173.54 153.47 19 A HIS 29 -96.47 -146.93 19 A PHE 37 59.42 18.89 20 A LYS 8 -124.66 -56.85 20 A TYR 14 177.76 151.50 20 A HIS 29 -139.76 -152.78 Solution Structure of HERG Specific Scorpion Toxin CnErg1 1 N N A SER 4 A SER 4 HELX_P A LYS 8 A LYS 8 5 1 5 A TYR 17 A TYR 17 HELX_P A GLY 28 A GLY 28 1 2 12 disulf 2.031 A CYS 5 A SG CYS 5 1_555 A CYS 23 A SG CYS 23 1_555 disulf 2.027 A CYS 11 A SG CYS 11 1_555 A CYS 34 A SG CYS 34 1_555 disulf 2.031 A CYS 20 A SG CYS 20 1_555 A CYS 39 A SG CYS 39 1_555 disulf 2.029 A CYS 24 A SG CYS 24 1_555 A CYS 41 A SG CYS 41 1_555 TOXIN alpha-helix, triple-stranded beta-sheet, TOXIN SEK1_CENNO UNP 1 1 Q86QT3 DRDSCVDKSRCAKYGYYQECQDCCKNAGHNGGTCMFFKCKCA 1 42 1NE5 1 42 Q86QT3 A 1 1 42 3 anti-parallel anti-parallel A TYR 14 A TYR 14 A GLY 15 A GLY 15 A GLY 32 A GLY 32 A MET 35 A MET 35 A CYS 39 A CYS 39 A CYS 41 A CYS 41