1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Van Wagoner, R.M. Ireland, C.M. 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 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 C5 H9 N O3 131.130 n 4-HYDROXYPROLINE HYDROXYPROLINE 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 H2 N 16.023 AMINO GROUP non-polymer C3 H7 N O3 105.093 y SERINE L-peptide linking C9 H11 N O3 181.189 y TYROSINE L-peptide linking US Biochemistry BICHAW 0033 0006-2960 42 6347 6352 10.1021/bi027274e 12767215 An Improved Solution Structure for psi-Conotoxin Piiie 2003 US Biochemistry BICHAW 0033 0006-2960 37 1215 1220 10.1021/bi972186t Three-dimensional Solution Structure of Conotoxin psi-PIIIE, an Acetylcholine Gated Ion Channel Antagonist 1998 US Biochemistry BICHAW 0033 0006-2960 36 9581 9587 10.1021/bi970235w A Noncompetitive Peptide Inhibitor of the Nicotinic Acetylcholine Receptor from Conus purpurascens Venom 1997 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 x-ray 1 1.0 2727.181 PSI-CONOTOXIN PIIIE 1 syn polymer no yes H(HYP)(HYP)CCLYGKCRRY(HYP)GCSSASCCQR(NH2) HPPCCLYGKCRRYPGCSSASCCQRX 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 repository Initial release Version format compliance Version format compliance Atomic model 1 0 2003-06-24 1 1 2008-04-27 1 2 2011-07-13 1 3 2011-08-24 1AS5 contains the original structures calculated for psi-conotoxin PIIIE. RCSB Y RCSB 2001-07-16 REL REL Solid phase chemical synthesis was used to incorporate 3-13C-labeled cysteine at positions 4 and 21. The sequence is the same as the native peptide from CONUS PURPURASCENS (PURPLE CONE). sample This structure was determined using isotopic filtration and isotope-selected 1H observation in addition to standard homonuclear techniques. back calculated data agree with experimental NOESY spectrum, structures with the least restraint violations, structures with the lowest energy 50 13 3D_13C-separated_NOESY DQF-COSY Half-filtered PE-COSY Double half-filtered 2D NOESY 16 mM; hexa-TFA salt 3.48 ambient 277 K 16 mM; hexa-TFA salt 3.48 ambient 295 K These structures are based on 566 NOE-derived distance restraints, 9 restraints on phi derived from J-coupling, and 13 restraints on chi1 determined from J-coupling and NOE volumes. distance geometry molecular dynamics relaxation matrix distance geometry simulated annealing 5 closest to the average 16 mM psi-conotoxin PIIIE [4,21] 3-13C-Cys; TFA added to pH 3.5 90% H2O/10% D2O 16 mM psi-conotoxin PIIIE [4,21] 3-13C-Cys 100% D2O Varian, Inc. collection VNMR 6.1B MSI, Inc. processing FELIX 97.0 MSI, Inc. iterative matrix relaxation IRMA 97.0 MSI, Inc. structure solution DGII 97.0 MSI, Inc. structure solution DISCOVER 2.98 MSI, Inc. refinement DISCOVER 2.98 600 Varian INOVA 500 Varian UNITY HIS 1 n 1 HIS 1 A HYP 2 n 2 HYP 2 A HYP 3 n 3 HYP 3 A CYS 4 n 4 CYS 4 A CYS 5 n 5 CYS 5 A LEU 6 n 6 LEU 6 A TYR 7 n 7 TYR 7 A GLY 8 n 8 GLY 8 A LYS 9 n 9 LYS 9 A CYS 10 n 10 CYS 10 A ARG 11 n 11 ARG 11 A ARG 12 n 12 ARG 12 A TYR 13 n 13 TYR 13 A HYP 14 n 14 HYP 14 A GLY 15 n 15 GLY 15 A CYS 16 n 16 CYS 16 A SER 17 n 17 SER 17 A SER 18 n 18 SER 18 A ALA 19 n 19 ALA 19 A SER 20 n 20 SER 20 A CYS 21 n 21 CYS 21 A CYS 22 n 22 CYS 22 A GLN 23 n 23 GLN 23 A ARG 24 n 24 ARG 24 A NH2 25 n 25 NH2 25 A author_defined_assembly 1 monomeric A HYP 2 4-HYDROXYPROLINE A HYP 2 PRO A HYP 3 4-HYDROXYPROLINE A HYP 3 PRO A HYP 14 4-HYDROXYPROLINE A HYP 14 PRO 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 LEU 6 A O LEU 6 A N LYS 9 A N LYS 9 1 A A CYS SER 16 17 146.06 1 A A SER ALA 18 19 144.32 2 A A CYS SER 16 17 146.49 2 A A SER ALA 18 19 144.74 3 A A CYS SER 16 17 147.28 3 A A SER ALA 18 19 144.19 4 A A HYP HYP 2 3 147.09 4 A A CYS SER 16 17 147.71 4 A A SER ALA 18 19 146.98 5 A A CYS SER 16 17 146.83 5 A A SER ALA 18 19 145.19 6 A A CYS SER 16 17 145.96 6 A A SER ALA 18 19 144.59 7 A A CYS SER 16 17 146.07 7 A A SER ALA 18 19 144.64 8 A A CYS SER 16 17 147.35 8 A A SER ALA 18 19 145.71 9 A A CYS SER 16 17 148.25 9 A A SER ALA 18 19 143.61 10 A A CYS SER 16 17 147.96 10 A A SER ALA 18 19 143.72 11 A A CYS SER 16 17 145.34 11 A A SER ALA 18 19 145.29 12 A A CYS SER 16 17 146.51 12 A A SER ALA 18 19 144.75 1 A ARG 11 0.095 SIDE CHAIN 4 A HIS 1 0.110 SIDE CHAIN 4 A TYR 7 0.072 SIDE CHAIN 4 A ARG 11 0.115 SIDE CHAIN 8 A HIS 1 0.084 SIDE CHAIN 8 A ARG 11 0.089 SIDE CHAIN 9 A TYR 7 0.067 SIDE CHAIN 10 A TYR 7 0.069 SIDE CHAIN 12 A HIS 1 0.086 SIDE CHAIN 12 A TYR 7 0.075 SIDE CHAIN 12 A ARG 11 0.113 SIDE CHAIN 1 8.08 1.30 111.50 119.58 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 1 -12.57 1.80 114.00 101.43 A A A CA CB SG CYS CYS CYS 4 4 4 N 1 3.53 0.50 120.30 123.83 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 1 3.73 0.50 120.30 124.03 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 1 3.75 0.50 120.30 124.05 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 2 8.04 1.30 111.50 119.54 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 2 -12.54 1.80 114.00 101.46 A A A CA CB SG CYS CYS CYS 4 4 4 N 2 3.70 0.50 120.30 124.00 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 2 3.82 0.50 120.30 124.12 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 2 3.84 0.50 120.30 124.14 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 3 8.07 1.30 111.50 119.57 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 3 -11.91 1.80 114.00 102.09 A A A CA CB SG CYS CYS CYS 4 4 4 N 3 3.58 0.50 120.30 123.88 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 3 3.99 0.50 120.30 124.29 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 3 3.76 0.50 120.30 124.06 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 4 8.24 1.30 111.50 119.74 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 4 -12.66 1.80 114.00 101.34 A A A CA CB SG CYS CYS CYS 4 4 4 N 4 3.70 0.50 120.30 124.00 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 4 3.65 0.50 120.30 123.95 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 4 3.80 0.50 120.30 124.10 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 5 8.01 1.30 111.50 119.51 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 5 -12.63 1.80 114.00 101.37 A A A CA CB SG CYS CYS CYS 4 4 4 N 5 3.84 0.50 120.30 124.14 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 5 3.70 0.50 120.30 124.00 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 5 3.67 0.50 120.30 123.97 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 6 8.12 1.30 111.50 119.62 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 6 -12.63 1.80 114.00 101.37 A A A CA CB SG CYS CYS CYS 4 4 4 N 6 3.87 0.50 120.30 124.17 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 6 3.67 0.50 120.30 123.97 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 6 3.82 0.50 120.30 124.12 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 7 8.06 1.30 111.50 119.56 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 7 -12.01 1.80 114.00 101.99 A A A CA CB SG CYS CYS CYS 4 4 4 N 7 3.64 0.50 120.30 123.94 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 7 3.83 0.50 120.30 124.13 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 7 3.68 0.50 120.30 123.98 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 8 8.17 1.30 111.50 119.67 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 8 -12.48 1.80 114.00 101.52 A A A CA CB SG CYS CYS CYS 4 4 4 N 8 4.42 0.50 120.30 124.72 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 8 3.71 0.50 120.30 124.01 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 8 3.86 0.50 120.30 124.16 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 9 8.04 1.30 111.50 119.54 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 9 -11.95 1.80 114.00 102.05 A A A CA CB SG CYS CYS CYS 4 4 4 N 9 3.30 0.50 120.30 123.60 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 9 3.68 0.50 120.30 123.98 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 9 3.67 0.50 120.30 123.97 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 10 8.09 1.30 111.50 119.59 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 10 -11.82 1.80 114.00 102.18 A A A CA CB SG CYS CYS CYS 4 4 4 N 10 3.34 0.50 120.30 123.64 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 10 3.69 0.50 120.30 123.99 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 10 3.90 0.50 120.30 124.20 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 11 8.05 1.30 111.50 119.55 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 11 -13.11 1.80 114.00 100.89 A A A CA CB SG CYS CYS CYS 4 4 4 N 11 3.83 0.50 120.30 124.13 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 11 3.76 0.50 120.30 124.06 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 11 3.83 0.50 120.30 124.13 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 12 8.00 1.30 111.50 119.50 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 12 -11.83 1.80 114.00 102.17 A A A CA CB SG CYS CYS CYS 4 4 4 N 12 3.34 0.50 120.30 123.64 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 12 3.86 0.50 120.30 124.16 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 12 3.69 0.50 120.30 123.99 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 13 8.13 1.30 111.50 119.63 A A A ND1 CE1 NE2 HIS HIS HIS 1 1 1 N 13 3.84 0.50 120.30 124.14 A A A NE CZ NH1 ARG ARG ARG 11 11 11 N 13 3.66 0.50 120.30 123.96 A A A NE CZ NH1 ARG ARG ARG 12 12 12 N 13 3.87 0.50 120.30 124.17 A A A NE CZ NH1 ARG ARG ARG 24 24 24 N 1 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 2 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 3 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 4 A A CG CD2 HIS HIS 1 1 0.055 0.009 1.354 1.409 N 5 A A CG CD2 HIS HIS 1 1 0.056 0.009 1.354 1.410 N 6 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 7 A A CG CD2 HIS HIS 1 1 0.056 0.009 1.354 1.410 N 8 A A CG CD2 HIS HIS 1 1 0.056 0.009 1.354 1.410 N 9 A A CG CD2 HIS HIS 1 1 0.056 0.009 1.354 1.410 N 10 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 11 A A CG CD2 HIS HIS 1 1 0.056 0.009 1.354 1.410 N 12 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 13 A A CG CD2 HIS HIS 1 1 0.057 0.009 1.354 1.411 N 1 A HYP 2 -52.61 -169.35 2 A HYP 2 -53.01 -170.65 2 A SER 17 -49.00 -19.67 3 A HYP 2 -53.24 -171.78 4 A HYP 2 -50.56 -163.49 5 A HYP 2 -52.82 -170.45 6 A HYP 2 -52.97 -170.55 6 A SER 17 -49.07 -19.53 7 A HYP 2 -53.17 -171.58 7 A ARG 12 -91.39 59.00 7 A SER 17 -49.33 -18.67 8 A HYP 2 -52.27 -168.26 9 A HYP 2 -52.92 -170.73 9 A ARG 12 -100.18 61.62 10 A HYP 2 -52.61 -170.10 10 A ARG 12 -94.51 58.73 11 A HYP 2 -52.96 -170.92 11 A SER 17 -49.29 -19.15 12 A HYP 2 -52.09 -166.20 12 A ARG 12 -107.97 52.35 13 A HYP 2 -53.40 -169.76 13 A ARG 12 -90.87 58.79 PSI-CONOTOXIN PIIIE Solution Structure of the Noncompetitive Skeletal Muscle Nicotinic Acetylcholine Receptor Antagonist Psi-conotoxin PIIIE 1 N N A GLY 15 A GLY 15 HELX_P A ALA 19 A ALA 19 5 1 5 disulf 1.935 A CYS 4 A SG CYS 4 1_555 A CYS 16 A SG CYS 16 1_555 disulf 2.001 A CYS 5 A SG CYS 5 1_555 A CYS 21 A SG CYS 21 1_555 disulf 2.003 A CYS 10 A SG CYS 10 1_555 A CYS 22 A SG CYS 22 1_555 covale 1.330 A ARG 24 A C ARG 24 1_555 A NH2 25 A N NH2 25 1_555 covale 1.367 A HIS 1 A C HIS 1 1_555 A HYP 2 A N HYP 2 1_555 covale 1.362 A HYP 2 A C HYP 2 1_555 A HYP 3 A N HYP 3 1_555 covale 1.347 A HYP 3 A C HYP 3 1_555 A CYS 4 A N CYS 4 1_555 covale 1.370 A TYR 13 A C TYR 13 1_555 A HYP 14 A N HYP 14 1_555 covale 1.334 A HYP 14 A C HYP 14 1_555 A GLY 15 A N GLY 15 1_555 TOXIN MULTIPLE DISULFIDE BONDS, AMIDATED C-TERMINUS, TOXIN CXP3E_CONPU UNP 1 3 P56529 HPPCCLYGKCRRYPGCSSASCCQR 3 26 1JLO 1 24 P56529 A 1 1 24 2 anti-parallel A CYS 5 A CYS 5 A LEU 6 A LEU 6 A LYS 9 A LYS 9 A CYS 10 A CYS 10 BINDING SITE FOR RESIDUE NH2 A 25 Software 2 A GLN 23 A GLN 23 2 1_555 A ARG 24 A ARG 24 2 1_555 1 P 1