1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Pennington, M.W. Lanigan, M.D. Kalman, K. Manhir, V.M. Rauer, H. McVaugh, C.T. Behm, D. Donaldson, D. Chandy, K.G. Kem, W.R. Norton, R.S. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 C4 H9 N O2 103.120 n ALPHA-AMINOBUTYRIC ACID L-peptide linking C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE 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 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 C9 H11 N O3 181.189 y TYROSINE L-peptide linking US Biochemistry BICHAW 0033 0006-2960 38 14549 14558 10.1021/bi991282m 10545177 Role of disulfide bonds in the structure and potassium channel blocking activity of ShK toxin. 1999 10.2210/pdb1c2u/pdb pdb_00001c2u 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 3973.698 SYNTHETIC PEPTIDE ANALOGUE OF SHK TOXIN C3(ABU), C35(ABU), M21A 1 syn polymer no yes RS(ABA)IDTIPKSRCTAFQCKHSAKYRLSFCRKTCGT(ABA) RSAIDTIPKSRCTAFQCKHSAKYRLSFCRKTCGTA 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 database_2 pdbx_nmr_software pdbx_struct_assembly pdbx_struct_oper_list struct_conn struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 1999-11-10 1 1 2008-04-27 1 2 2011-07-13 1 3 2021-11-03 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_software.name _struct_conn.pdbx_leaving_atom_flag _struct_ref_seq_dif.details RCSB Y RCSB 1999-07-27 REL REL THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE OF THIS PEPTIDE IS NATURALLY FOUND IN STICHODACTYLA HELIANTHUS. sample THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES. structures with the lowest energy 50 20 2D NOESY 2D-TOCSY DQF-COSY 5.6 mM PEPTIDE 5.0 AMBIENT 293.0 K THE STRUCTURES ARE BASED ON 328 NOE-DERIVED DISTANCE CONSTRAINTS AND 26 DIHEDRAL ANGLE RESTRAINTS THE STRUCTURES WERE REFINED USING DISTANCE GEOMETRY, SIMULATED ANNEALING AND MOLECULAR DYNAMICS 1 closest to the average 5.6 MM [ABU3,35]SHK12-28,17-32; 90% H2O, 10% D2O (V/V) BRUKER collection XwinNMR 2.1 BARTELS data analysis XEASY 1.3.7 GUNTERT structure solution DYANA 1.4 BRUNGER refinement X-PLOR 1.3 BROOKS refinement CHARMM 19 600 Bruker DRX 500 Bruker AMX ARG 1 n 1 ARG 1 A SER 2 n 2 SER 2 A ABA 3 n 3 ABA 3 A ILE 4 n 4 ILE 4 A ASP 5 n 5 ASP 5 A THR 6 n 6 THR 6 A ILE 7 n 7 ILE 7 A PRO 8 n 8 PRO 8 A LYS 9 n 9 LYS 9 A SER 10 n 10 SER 10 A ARG 11 n 11 ARG 11 A CYS 12 n 12 CYS 12 A THR 13 n 13 THR 13 A ALA 14 n 14 ALA 14 A PHE 15 n 15 PHE 15 A GLN 16 n 16 GLN 16 A CYS 17 n 17 CYS 17 A LYS 18 n 18 LYS 18 A HIS 19 n 19 HIS 19 A SER 20 n 20 SER 20 A ALA 21 n 21 ALA 21 A LYS 22 n 22 LYS 22 A TYR 23 n 23 TYR 23 A ARG 24 n 24 ARG 24 A LEU 25 n 25 LEU 25 A SER 26 n 26 SER 26 A PHE 27 n 27 PHE 27 A CYS 28 n 28 CYS 28 A ARG 29 n 29 ARG 29 A LYS 30 n 30 LYS 30 A THR 31 n 31 THR 31 A CYS 32 n 32 CYS 32 A GLY 33 n 33 GLY 33 A THR 34 n 34 THR 34 A ABA 35 n 35 ABA 35 A author_defined_assembly 1 monomeric A ABA 3 ALPHA-AMINOBUTYRIC ACID A ABA 3 ALA A ABA 35 ALPHA-AMINOBUTYRIC ACID A ABA 35 ALA 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 identity operation 0.0000000000 0.0000000000 0.0000000000 1 A ARG 1 0.305 SIDE CHAIN 1 A ARG 11 0.279 SIDE CHAIN 1 A ARG 24 0.323 SIDE CHAIN 1 A ARG 29 0.274 SIDE CHAIN 2 A ARG 1 0.319 SIDE CHAIN 2 A ARG 24 0.317 SIDE CHAIN 2 A ARG 29 0.294 SIDE CHAIN 3 A ARG 1 0.317 SIDE CHAIN 3 A ARG 11 0.319 SIDE CHAIN 3 A ARG 24 0.321 SIDE CHAIN 3 A ARG 29 0.307 SIDE CHAIN 4 A ARG 1 0.274 SIDE CHAIN 4 A ARG 11 0.317 SIDE CHAIN 4 A ARG 24 0.299 SIDE CHAIN 4 A ARG 29 0.242 SIDE CHAIN 5 A ARG 1 0.322 SIDE CHAIN 5 A ARG 11 0.309 SIDE CHAIN 5 A ARG 24 0.320 SIDE CHAIN 5 A ARG 29 0.312 SIDE CHAIN 6 A ARG 1 0.321 SIDE CHAIN 6 A ARG 11 0.300 SIDE CHAIN 6 A ARG 24 0.191 SIDE CHAIN 6 A ARG 29 0.271 SIDE CHAIN 7 A ARG 1 0.319 SIDE CHAIN 7 A ARG 11 0.312 SIDE CHAIN 7 A ARG 24 0.316 SIDE CHAIN 7 A ARG 29 0.324 SIDE CHAIN 8 A ARG 1 0.283 SIDE CHAIN 8 A ARG 11 0.304 SIDE CHAIN 8 A ARG 24 0.181 SIDE CHAIN 8 A ARG 29 0.324 SIDE CHAIN 9 A ARG 1 0.327 SIDE CHAIN 9 A ARG 11 0.314 SIDE CHAIN 9 A ARG 24 0.279 SIDE CHAIN 9 A ARG 29 0.253 SIDE CHAIN 10 A ARG 1 0.317 SIDE CHAIN 10 A ARG 11 0.289 SIDE CHAIN 10 A ARG 24 0.296 SIDE CHAIN 10 A ARG 29 0.297 SIDE CHAIN 11 A ARG 1 0.317 SIDE CHAIN 11 A ARG 11 0.313 SIDE CHAIN 11 A ARG 24 0.115 SIDE CHAIN 11 A ARG 29 0.306 SIDE CHAIN 12 A ARG 1 0.317 SIDE CHAIN 12 A ARG 11 0.320 SIDE CHAIN 12 A ARG 24 0.320 SIDE CHAIN 12 A ARG 29 0.316 SIDE CHAIN 13 A ARG 1 0.316 SIDE CHAIN 13 A ARG 11 0.316 SIDE CHAIN 13 A ARG 29 0.316 SIDE CHAIN 14 A ARG 1 0.231 SIDE CHAIN 14 A ARG 11 0.312 SIDE CHAIN 14 A ARG 24 0.307 SIDE CHAIN 14 A ARG 29 0.215 SIDE CHAIN 15 A ARG 1 0.315 SIDE CHAIN 15 A ARG 11 0.303 SIDE CHAIN 15 A ARG 24 0.305 SIDE CHAIN 15 A ARG 29 0.310 SIDE CHAIN 16 A ARG 1 0.314 SIDE CHAIN 16 A ARG 11 0.303 SIDE CHAIN 16 A ARG 24 0.315 SIDE CHAIN 16 A ARG 29 0.317 SIDE CHAIN 17 A ARG 1 0.311 SIDE CHAIN 17 A ARG 11 0.301 SIDE CHAIN 17 A ARG 24 0.317 SIDE CHAIN 17 A ARG 29 0.317 SIDE CHAIN 18 A ARG 1 0.312 SIDE CHAIN 18 A ARG 11 0.317 SIDE CHAIN 18 A ARG 24 0.314 SIDE CHAIN 18 A ARG 29 0.100 SIDE CHAIN 19 A ARG 1 0.241 SIDE CHAIN 19 A ARG 11 0.286 SIDE CHAIN 19 A ARG 24 0.317 SIDE CHAIN 19 A ARG 29 0.323 SIDE CHAIN 20 A ARG 1 0.314 SIDE CHAIN 20 A ARG 11 0.307 SIDE CHAIN 20 A ARG 24 0.305 SIDE CHAIN 20 A ARG 29 0.265 SIDE CHAIN 1 -3.99 0.50 120.30 116.31 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 1 -3.63 0.50 120.30 116.67 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 1 8.22 1.10 119.40 127.62 A A A NH1 CZ NH2 ARG ARG ARG 29 29 29 N 1 -4.35 0.50 120.30 115.95 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 1 -3.87 0.50 120.30 116.43 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 2 -4.81 0.50 120.30 115.49 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 2 7.30 1.10 114.20 121.50 A A A CA CB SG CYS CYS CYS 32 32 32 N 3 -4.03 0.50 120.30 116.27 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 4 -4.54 0.50 120.30 115.76 A A A NE CZ NH2 ARG ARG ARG 11 11 11 N 4 -3.23 0.50 120.30 117.07 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 5 -3.77 0.50 120.30 116.53 A A A NE CZ NH2 ARG ARG ARG 1 1 1 N 5 7.15 1.10 119.40 126.55 A A A NH1 CZ NH2 ARG ARG ARG 24 24 24 N 5 -4.59 0.50 120.30 115.71 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 5 7.10 1.10 114.20 121.30 A A A CA CB SG CYS CYS CYS 28 28 28 N 6 -3.66 0.50 120.30 116.64 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 7 -3.28 0.50 120.30 117.02 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 7 -3.72 0.50 120.30 116.58 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 7 8.05 1.10 114.20 122.25 A A A CA CB SG CYS CYS CYS 28 28 28 N 7 -3.13 0.50 120.30 117.17 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 8 7.55 1.10 114.20 121.75 A A A CA CB SG CYS CYS CYS 28 28 28 N 8 -4.56 0.50 120.30 115.74 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 9 -3.31 0.50 120.30 116.99 A A A NE CZ NH2 ARG ARG ARG 1 1 1 N 9 -3.27 0.50 120.30 117.03 A A A NE CZ NH2 ARG ARG ARG 11 11 11 N 9 -3.17 0.50 120.30 117.13 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 10 -3.22 0.50 120.30 117.08 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 10 -3.46 0.50 120.30 116.84 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 11 -3.00 0.50 120.30 117.30 A A A NE CZ NH1 ARG ARG ARG 1 1 1 N 11 -3.07 0.50 120.30 117.23 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 11 10.64 1.10 114.20 124.84 A A A CA CB SG CYS CYS CYS 28 28 28 N 11 -3.63 0.50 120.30 116.67 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 12 -3.84 0.50 120.30 116.46 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 12 -3.76 0.50 120.30 116.54 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 12 -3.15 0.50 120.30 117.15 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 13 -3.22 0.50 120.30 117.08 A A A NE CZ NH1 ARG ARG ARG 1 1 1 N 13 -3.02 0.50 120.30 117.28 A A A NE CZ NH2 ARG ARG ARG 11 11 11 N 13 6.74 1.10 114.20 120.94 A A A CA CB SG CYS CYS CYS 28 28 28 N 13 7.27 1.10 119.40 126.67 A A A NH1 CZ NH2 ARG ARG ARG 29 29 29 N 13 -3.14 0.50 120.30 117.16 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 13 -4.13 0.50 120.30 116.17 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 14 -3.83 0.50 120.30 116.47 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 14 8.59 1.10 114.20 122.79 A A A CA CB SG CYS CYS CYS 28 28 28 N 14 -4.37 0.50 120.30 115.93 A A A NE CZ NH1 ARG ARG ARG 29 29 29 N 15 7.13 1.10 119.40 126.53 A A A NH1 CZ NH2 ARG ARG ARG 24 24 24 N 15 -4.68 0.50 120.30 115.62 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 15 11.27 1.10 114.20 125.47 A A A CA CB SG CYS CYS CYS 28 28 28 N 15 -3.39 0.50 120.30 116.91 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 16 -3.31 0.50 120.30 116.99 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 16 9.62 1.10 114.20 123.82 A A A CA CB SG CYS CYS CYS 28 28 28 N 16 -3.11 0.50 120.30 117.19 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 17 -3.93 0.50 120.30 116.37 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 17 -3.17 0.50 120.30 117.13 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 17 -3.66 0.50 120.30 116.64 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 18 -3.70 0.50 120.30 116.60 A A A NE CZ NH2 ARG ARG ARG 1 1 1 N 18 -3.07 0.50 120.30 117.23 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 18 -3.21 0.50 120.30 117.09 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 19 -4.25 0.50 120.30 116.05 A A A NE CZ NH2 ARG ARG ARG 1 1 1 N 19 -3.53 0.50 120.30 116.77 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 19 8.07 1.10 114.20 122.27 A A A CA CB SG CYS CYS CYS 28 28 28 N 19 -3.32 0.50 120.30 116.98 A A A NE CZ NH2 ARG ARG ARG 29 29 29 N 20 -4.40 0.50 120.30 115.90 A A A NE CZ NH2 ARG ARG ARG 11 11 11 N 20 9.65 1.10 114.20 123.85 A A A CA CB SG CYS CYS CYS 12 12 12 N 20 -14.09 2.30 110.00 95.91 A A A OG1 CB CG2 THR THR THR 13 13 13 N 20 6.61 1.10 119.40 126.01 A A A NH1 CZ NH2 ARG ARG ARG 24 24 24 N 20 -4.09 0.50 120.30 116.21 A A A NE CZ NH2 ARG ARG ARG 24 24 24 N 20 8.10 1.10 114.20 122.30 A A A CA CB SG CYS CYS CYS 28 28 28 N 1 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 2 A A NE2 CD2 HIS HIS 19 19 -0.068 0.011 1.373 1.305 N 3 A A NE2 CD2 HIS HIS 19 19 -0.068 0.011 1.373 1.305 N 4 A A NE2 CD2 HIS HIS 19 19 -0.071 0.011 1.373 1.302 N 5 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 6 A A NE2 CD2 HIS HIS 19 19 -0.071 0.011 1.373 1.302 N 7 A A NE2 CD2 HIS HIS 19 19 -0.069 0.011 1.373 1.304 N 8 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 9 A A NE2 CD2 HIS HIS 19 19 -0.071 0.011 1.373 1.302 N 10 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 11 A A NE2 CD2 HIS HIS 19 19 -0.068 0.011 1.373 1.305 N 12 A A NE2 CD2 HIS HIS 19 19 -0.069 0.011 1.373 1.304 N 13 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 14 A A NE2 CD2 HIS HIS 19 19 -0.072 0.011 1.373 1.301 N 15 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 16 A A NE2 CD2 HIS HIS 19 19 -0.071 0.011 1.373 1.302 N 17 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 18 A A NE2 CD2 HIS HIS 19 19 -0.070 0.011 1.373 1.303 N 19 A A NE2 CD2 HIS HIS 19 19 -0.069 0.011 1.373 1.304 N 20 A A NE2 CD2 HIS HIS 19 19 -0.073 0.011 1.373 1.300 N 1 A ABA 3 -52.00 170.67 1 A ASP 5 -146.29 -126.03 1 A THR 6 -33.41 -24.84 1 A PRO 8 -40.34 66.54 1 A LYS 9 -18.80 66.02 1 A SER 10 -144.14 -101.67 1 A GLN 16 -151.50 -66.97 1 A CYS 17 -29.57 -44.56 1 A LYS 18 -172.21 71.22 1 A HIS 19 -29.56 -84.44 1 A ALA 21 179.72 -12.47 1 A LEU 25 -90.78 -79.06 1 A SER 26 178.71 -43.81 1 A PHE 27 -159.77 -64.50 1 A ARG 29 -176.55 -89.62 2 A SER 2 -121.31 -165.49 2 A ABA 3 -101.09 -166.44 2 A ILE 4 -111.39 -120.80 2 A PRO 8 -57.48 83.58 2 A SER 10 -121.39 -123.10 2 A GLN 16 -158.30 -52.03 2 A CYS 17 -29.86 -55.74 2 A LYS 18 -168.61 77.87 2 A HIS 19 -29.92 -87.84 2 A SER 20 -68.24 77.00 2 A ALA 21 179.80 -12.80 2 A LEU 25 -91.50 -74.07 2 A SER 26 178.01 -50.85 2 A PHE 27 -161.08 -63.28 2 A ARG 29 -166.91 -56.40 2 A LYS 30 -66.25 -79.22 2 A THR 34 -100.83 -75.04 3 A ABA 3 -47.55 155.53 3 A ILE 4 -113.30 -92.45 3 A ASP 5 -120.19 -105.58 3 A THR 6 -56.76 1.25 3 A LYS 9 -68.55 73.02 3 A SER 10 -147.79 -109.52 3 A GLN 16 -157.34 -60.28 3 A LYS 18 -174.05 75.21 3 A HIS 19 -28.80 -94.21 3 A SER 20 -69.17 34.71 3 A SER 26 177.85 -67.56 3 A PHE 27 -157.09 -52.11 3 A ARG 29 -167.75 -88.54 3 A THR 34 -102.27 -78.41 4 A SER 2 -70.79 -150.53 4 A ILE 4 -114.65 -120.96 4 A THR 6 -100.80 -121.78 4 A SER 10 -119.88 -107.87 4 A GLN 16 -154.92 -60.81 4 A LYS 18 -165.87 71.06 4 A HIS 19 -29.76 -79.46 4 A ALA 21 179.48 -10.81 4 A LEU 25 -90.54 -72.19 4 A SER 26 179.58 -50.89 4 A PHE 27 -162.61 -58.64 4 A ARG 29 -177.83 -89.40 4 A THR 34 -111.33 -79.63 5 A ABA 3 -51.12 172.35 5 A ILE 4 -108.92 -89.38 5 A ASP 5 -147.16 -87.08 5 A THR 6 -18.01 -103.08 5 A LYS 9 -71.04 30.63 5 A SER 10 179.97 -110.54 5 A GLN 16 -152.59 -61.34 5 A CYS 17 -29.97 -52.21 5 A LYS 18 -168.90 79.31 5 A HIS 19 -29.93 -78.63 5 A SER 20 -69.17 40.42 5 A LEU 25 -91.77 -66.65 5 A SER 26 179.75 -51.91 5 A PHE 27 -160.33 -66.12 5 A ARG 29 179.03 -88.20 5 A THR 34 -109.77 -81.74 6 A SER 2 179.61 -157.49 6 A ILE 4 -109.41 -123.41 6 A THR 6 -95.77 -153.42 6 A LYS 9 -100.67 47.42 6 A SER 10 -104.47 -111.60 6 A GLN 16 -150.74 -62.85 6 A LYS 18 -163.88 68.57 6 A HIS 19 -28.38 -85.16 6 A SER 20 -74.39 46.65 6 A ALA 21 -158.48 -0.32 6 A SER 26 178.98 -49.83 6 A PHE 27 -167.27 -50.47 6 A ARG 29 -170.11 -84.99 6 A THR 34 -95.37 -80.52 7 A SER 2 -161.35 -169.60 7 A ILE 4 -105.88 -119.87 7 A SER 10 -144.76 -102.56 7 A GLN 16 -155.28 -59.85 7 A LYS 18 -162.50 72.06 7 A HIS 19 -28.51 -75.17 7 A SER 20 -75.35 44.16 7 A LEU 25 -98.04 -99.80 7 A SER 26 -139.82 -47.54 7 A PHE 27 -152.81 -61.86 7 A ARG 29 -151.77 -86.85 7 A THR 34 -110.96 -91.26 8 A SER 2 -151.82 -151.22 8 A ILE 4 -115.97 -96.86 8 A ASP 5 -132.74 -92.84 8 A THR 6 -18.96 -96.90 8 A SER 10 -153.08 -110.42 8 A GLN 16 -157.79 -52.87 8 A CYS 17 -29.30 -49.69 8 A LYS 18 -178.33 82.59 8 A HIS 19 -32.00 -84.80 8 A SER 20 -61.95 30.11 8 A LEU 25 -90.60 -71.79 8 A SER 26 178.63 -47.95 8 A PHE 27 -158.94 -65.66 8 A ARG 29 179.71 -34.71 8 A CYS 32 -98.16 -67.03 8 A THR 34 -70.60 -84.39 9 A SER 2 -161.14 114.39 9 A ASP 5 -120.24 -89.60 9 A THR 6 -46.86 177.58 9 A SER 10 -174.76 -100.27 9 A GLN 16 -152.14 -60.05 9 A LYS 18 -173.89 74.34 9 A HIS 19 -29.45 -80.55 9 A SER 20 -68.35 41.29 9 A LEU 25 -94.90 -65.49 9 A SER 26 178.73 -55.52 9 A PHE 27 -157.18 -63.22 9 A ARG 29 177.59 -92.51 10 A SER 2 -105.34 -154.54 10 A ILE 4 -119.88 -86.80 10 A ASP 5 -118.05 -98.19 10 A THR 6 -18.40 -102.91 10 A ILE 7 -145.10 26.19 10 A SER 10 -156.03 -138.23 10 A GLN 16 -152.37 -61.10 10 A CYS 17 -29.40 -54.39 10 A LYS 18 -167.21 75.09 10 A HIS 19 -29.19 -79.66 10 A SER 20 -66.21 36.70 10 A SER 26 178.38 -53.24 10 A PHE 27 -161.00 -62.37 10 A ARG 29 -164.75 -50.08 10 A LYS 30 -66.10 -83.54 10 A THR 31 -59.25 -9.43 10 A THR 34 -77.01 -73.79 11 A SER 2 179.87 -172.36 11 A ABA 3 -33.54 149.63 11 A ILE 4 -118.72 -86.18 11 A ASP 5 -118.28 -100.59 11 A PRO 8 -56.31 80.27 11 A LYS 9 -30.45 67.14 11 A SER 10 -147.21 -88.74 11 A GLN 16 -156.58 -61.00 11 A LYS 18 -170.30 70.47 11 A HIS 19 -28.61 -92.23 11 A ALA 21 -156.36 -9.52 11 A LEU 25 -93.19 -77.81 11 A SER 26 178.99 -44.72 11 A PHE 27 -163.43 -59.45 11 A ARG 29 -139.33 -87.41 11 A LYS 30 -29.52 -69.81 11 A THR 34 -113.74 -83.45 12 A ABA 3 -45.15 165.72 12 A ILE 4 -101.43 -66.98 12 A ASP 5 -162.80 -94.88 12 A THR 6 -19.17 -96.16 12 A LYS 9 -62.25 35.85 12 A SER 10 -173.26 -93.26 12 A ARG 11 -145.11 36.83 12 A GLN 16 -151.67 -60.32 12 A CYS 17 -29.77 -50.67 12 A LYS 18 -172.55 76.73 12 A HIS 19 -29.73 -81.33 12 A ALA 21 -169.31 -7.03 12 A TYR 23 -59.85 -4.16 12 A LEU 25 -92.06 -65.18 12 A SER 26 177.66 -59.13 12 A PHE 27 -157.15 -64.37 12 A ARG 29 -178.17 -89.35 13 A ILE 4 -100.49 -117.95 13 A LYS 9 -68.13 55.42 13 A SER 10 -127.30 -118.69 13 A GLN 16 -156.28 -62.00 13 A CYS 17 -29.79 -44.44 13 A LYS 18 -179.19 72.88 13 A HIS 19 -29.13 -81.95 13 A ALA 21 -167.89 -11.38 13 A LEU 25 -80.09 -71.25 13 A SER 26 177.98 -52.01 13 A PHE 27 -155.06 -50.89 13 A ARG 29 -162.85 -31.19 13 A THR 34 -124.11 -61.51 14 A SER 2 -139.35 -142.27 14 A ABA 3 -72.05 -156.10 14 A ILE 4 -119.29 -129.31 14 A THR 6 -101.08 -142.76 14 A PRO 8 -68.42 82.62 14 A SER 10 -127.90 -99.67 14 A GLN 16 -156.91 -56.63 14 A LYS 18 -168.04 74.26 14 A HIS 19 -29.66 -79.01 14 A SER 20 -62.86 27.68 14 A LEU 25 -94.22 -88.02 14 A SER 26 -161.49 -46.42 14 A PHE 27 -162.78 -58.14 14 A ARG 29 -161.13 -49.63 14 A LYS 30 -70.17 -79.07 14 A THR 31 -59.49 -9.86 14 A THR 34 -102.09 -88.34 15 A SER 2 179.95 -168.32 15 A ILE 4 -107.63 -124.74 15 A ASP 5 -85.57 35.02 15 A PRO 8 -60.05 88.84 15 A LYS 9 -68.00 71.04 15 A SER 10 -140.21 -113.91 15 A GLN 16 -164.80 -62.03 15 A LYS 18 -161.57 62.29 15 A HIS 19 -29.56 -84.02 15 A ALA 21 179.43 -10.00 15 A LEU 25 -91.75 -62.58 15 A SER 26 178.55 -55.03 15 A PHE 27 -152.56 -60.19 15 A ARG 29 -176.93 -22.53 16 A SER 2 -133.57 -157.86 16 A ABA 3 -42.48 162.77 16 A ILE 4 -107.00 -91.06 16 A ASP 5 -142.77 -92.20 16 A THR 6 -19.41 -93.80 16 A LYS 9 -78.62 24.38 16 A SER 10 179.21 -111.03 16 A GLN 16 -151.96 -58.02 16 A LYS 18 -169.74 69.45 16 A HIS 19 -29.73 -67.75 16 A ALA 21 179.28 -4.39 16 A TYR 23 -61.67 0.83 16 A SER 26 177.60 -58.92 16 A PHE 27 -157.64 -64.13 16 A ARG 29 -149.46 -73.33 16 A THR 34 -118.42 -98.21 17 A SER 2 -170.60 -169.08 17 A ILE 4 -121.05 -82.75 17 A ASP 5 -139.54 -86.14 17 A THR 6 -18.52 -113.10 17 A LYS 9 -69.30 32.00 17 A SER 10 179.69 -109.20 17 A GLN 16 -152.37 -62.26 17 A CYS 17 -29.67 -48.89 17 A LYS 18 -174.07 72.00 17 A HIS 19 -28.99 -77.46 17 A SER 20 -75.98 49.50 17 A ALA 21 -149.29 -3.36 17 A LEU 25 -96.10 -62.05 17 A SER 26 178.77 -54.31 17 A PHE 27 -163.24 -61.77 17 A ARG 29 -178.14 -60.09 17 A LYS 30 -70.56 -74.76 18 A SER 2 178.98 -151.94 18 A ASP 5 46.82 -76.23 18 A THR 6 -101.37 -80.04 18 A SER 10 -125.60 -136.84 18 A GLN 16 -153.01 -62.90 18 A CYS 17 -29.09 -57.99 18 A LYS 18 -165.93 73.53 18 A HIS 19 -28.75 -79.03 18 A SER 20 -72.97 49.91 18 A ALA 21 -149.94 -1.51 18 A LEU 25 -91.92 -69.21 18 A SER 26 178.92 -49.04 18 A PHE 27 -167.03 -84.17 18 A ARG 29 -171.52 -90.85 18 A CYS 32 -102.33 -84.77 19 A ASP 5 56.81 -82.72 19 A ILE 7 -131.74 -54.32 19 A LYS 9 -30.56 65.92 19 A SER 10 -143.52 -97.09 19 A GLN 16 -153.74 -62.07 19 A LYS 18 179.90 72.11 19 A HIS 19 -28.03 -91.67 19 A SER 20 -70.81 41.19 19 A ALA 21 -142.42 -1.52 19 A LEU 25 -94.05 -79.21 19 A SER 26 -170.02 -51.44 19 A PHE 27 -155.43 -71.37 19 A ARG 29 -151.84 -55.47 19 A LYS 30 -66.09 -81.95 20 A SER 2 -118.66 58.16 20 A ABA 3 -38.96 -34.45 20 A ASP 5 55.44 -76.84 20 A THR 6 -101.55 -106.47 20 A ILE 7 -140.49 47.16 20 A SER 10 -141.51 -106.42 20 A ARG 11 -154.36 75.24 20 A GLN 16 -152.31 -59.33 20 A LYS 18 -169.32 71.63 20 A HIS 19 -28.76 -60.59 20 A SER 26 178.57 -62.35 20 A PHE 27 -150.95 -65.01 20 A ARG 29 -167.76 -86.89 20 A THR 34 -114.17 -85.41 SOLUTION STRUCTURE OF [ABU3,35]SHK12-28,17-32 1 N N disulf 2.029 A CYS 12 A SG CYS 12 1_555 A CYS 28 A SG CYS 28 1_555 disulf 2.010 A CYS 17 A SG CYS 17 1_555 A CYS 32 A SG CYS 32 1_555 covale 1.314 both A SER 2 A C SER 2 1_555 A ABA 3 A N ABA 3 1_555 covale 1.314 both A ABA 3 A C ABA 3 1_555 A ILE 4 A N ILE 4 1_555 covale 1.307 both A THR 34 A C THR 34 1_555 A ABA 35 A N ABA 35 1_555 TOXIN SHK TOXIN, POTASSIUM CHANNEL, DISULPHIDE BONDS, ANALOGUES, STRUCTURE-FUNCTION, SOLUTION STRUCTURE, TOXIN TXSHK_STOHE UNP 1 P29187 1 35 1C2U 1 35 P29187 A 1 1 35 1 CYS engineered mutation ABA 3 1C2U A P29187 UNP 3 3 1 MET engineered mutation ALA 21 1C2U A P29187 UNP 21 21 1 CYS engineered mutation ABA 35 1C2U A P29187 UNP 35 35 1 P 1