HEADER TOXIN 30-OCT-03 1R9I TITLE NMR SOLUTION STRUCTURE OF PIIIA TOXIN, NMR, 20 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: MU-CONOTOXIN PIIIA; COMPND 3 CHAIN: A SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CONUS PURPURASCENS; SOURCE 3 ORGANISM_TAXID: 41690 KEYWDS CONOTOXIN, CYSTEINE KNOT, TOXIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR K.J.NIELSEN,M.WATSON,D.J.ADAMS,A.K.HAMMARSTROM,P.W.GAGE,J.M.HILL, AUTHOR 2 D.J.CRAIK,L.THOMAS,D.ADAMS,P.F.ALEWOOD,R.J.LEWIS REVDAT 3 25-DEC-19 1R9I 1 REMARK SEQADV SEQRES LINK REVDAT 2 24-FEB-09 1R9I 1 VERSN REVDAT 1 18-NOV-03 1R9I 0 JRNL AUTH K.J.NIELSEN,M.WATSON,D.J.ADAMS,A.K.HAMMARSTROM,P.W.GAGE, JRNL AUTH 2 J.M.HILL,D.J.CRAIK,L.THOMAS,D.ADAMS,P.F.ALEWOOD,R.J.LEWIS JRNL TITL SOLUTION STRUCTURE OF MU-CONOTOXIN PIIIA, A PREFERENTIAL JRNL TITL 2 INHIBITOR OF PERSISTENT TETRODOTOXIN-SENSITIVE SODIUM JRNL TITL 3 CHANNELS JRNL REF J.BIOL.CHEM. V. 277 27247 2002 JRNL REFN ISSN 0021-9258 JRNL PMID 12006587 JRNL DOI 10.1074/JBC.M201611200 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : UXNMR, X-PLOR 3.8 REMARK 3 AUTHORS : BRUNGER (X-PLOR) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1R9I COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-NOV-03. REMARK 100 THE DEPOSITION ID IS D_1000020604. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298; 298 REMARK 210 PH : 3.0; 5.5 REMARK 210 IONIC STRENGTH : NULL; NULL REMARK 210 PRESSURE : NULL; NULL REMARK 210 SAMPLE CONTENTS : 2MM PIIIA, 95% H2O, 5% D2O; 2MM REMARK 210 PIIIA, 100% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY; 2D TOCSY; DQF-COSY; E REMARK 210 -COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 750 MHZ; 500 MHZ REMARK 210 SPECTROMETER MODEL : DMX; AMX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : AURELIA, UXNMR, X-PLOR 3.8 REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS, REMARK 210 SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 20 REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 1 CYS A 4 CA - CB - SG ANGL. DEV. = 8.6 DEGREES REMARK 500 1 CYS A 16 CA - CB - SG ANGL. DEV. = 7.9 DEGREES REMARK 500 1 CYS A 21 CA - CB - SG ANGL. DEV. = 8.9 DEGREES REMARK 500 2 CYS A 4 CA - CB - SG ANGL. DEV. = 8.2 DEGREES REMARK 500 2 CYS A 21 CA - CB - SG ANGL. DEV. = 6.6 DEGREES REMARK 500 3 CYS A 4 CA - CB - SG ANGL. DEV. = 7.6 DEGREES REMARK 500 4 CYS A 11 CA - CB - SG ANGL. DEV. = 9.4 DEGREES REMARK 500 5 CYS A 11 CA - CB - SG ANGL. DEV. = 8.5 DEGREES REMARK 500 7 CYS A 11 CA - CB - SG ANGL. DEV. = 8.3 DEGREES REMARK 500 8 CYS A 11 CA - CB - SG ANGL. DEV. = 7.0 DEGREES REMARK 500 8 CYS A 21 CA - CB - SG ANGL. DEV. = 7.0 DEGREES REMARK 500 9 CYS A 4 CA - CB - SG ANGL. DEV. = 7.1 DEGREES REMARK 500 9 CYS A 16 CA - CB - SG ANGL. DEV. = 7.8 DEGREES REMARK 500 10 CYS A 11 CA - CB - SG ANGL. DEV. = 8.2 DEGREES REMARK 500 11 CYS A 4 CA - CB - SG ANGL. DEV. = 7.7 DEGREES REMARK 500 11 CYS A 11 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 11 CYS A 16 CA - CB - SG ANGL. DEV. = 7.5 DEGREES REMARK 500 12 CYS A 4 CA - CB - SG ANGL. DEV. = 6.8 DEGREES REMARK 500 12 CYS A 11 CA - CB - SG ANGL. DEV. = 8.9 DEGREES REMARK 500 13 CYS A 4 CA - CB - SG ANGL. DEV. = 7.4 DEGREES REMARK 500 14 CYS A 11 CA - CB - SG ANGL. DEV. = 8.1 DEGREES REMARK 500 14 CYS A 21 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 15 CYS A 4 CA - CB - SG ANGL. DEV. = 9.5 DEGREES REMARK 500 15 CYS A 16 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 15 CYS A 21 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 16 CYS A 4 CA - CB - SG ANGL. DEV. = 6.6 DEGREES REMARK 500 16 CYS A 11 CA - CB - SG ANGL. DEV. = 9.4 DEGREES REMARK 500 17 CYS A 4 CA - CB - SG ANGL. DEV. = 6.8 DEGREES REMARK 500 17 CYS A 11 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 18 CYS A 11 CA - CB - SG ANGL. DEV. = 6.8 DEGREES REMARK 500 18 CYS A 21 CA - CB - SG ANGL. DEV. = 7.1 DEGREES REMARK 500 19 CYS A 4 CA - CB - SG ANGL. DEV. = 9.3 DEGREES REMARK 500 19 CYS A 16 CA - CB - SG ANGL. DEV. = 7.6 DEGREES REMARK 500 20 CYS A 4 CA - CB - SG ANGL. DEV. = 8.7 DEGREES REMARK 500 20 CYS A 5 CA - CB - SG ANGL. DEV. = 7.2 DEGREES REMARK 500 20 CYS A 11 CA - CB - SG ANGL. DEV. = 7.4 DEGREES REMARK 500 20 CYS A 21 CA - CB - SG ANGL. DEV. = 10.5 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 1 ARG A 2 46.20 -86.56 REMARK 500 1 LEU A 3 -132.12 -60.77 REMARK 500 2 LEU A 3 -72.56 -56.08 REMARK 500 2 CYS A 5 53.26 -90.79 REMARK 500 3 HYP A 18 1.50 -67.51 REMARK 500 6 LEU A 3 -117.02 -76.11 REMARK 500 6 CYS A 11 -30.55 -37.51 REMARK 500 7 ARG A 2 41.21 -104.86 REMARK 500 8 CYS A 11 -33.33 -35.40 REMARK 500 8 HYP A 18 1.36 -67.09 REMARK 500 9 ARG A 2 64.23 -108.96 REMARK 500 9 LEU A 3 -76.64 -92.20 REMARK 500 10 ARG A 2 59.29 -90.45 REMARK 500 10 LEU A 3 -88.69 -64.58 REMARK 500 10 CYS A 11 -30.86 -39.23 REMARK 500 11 LEU A 3 -70.44 -81.74 REMARK 500 13 LEU A 3 -121.06 -82.74 REMARK 500 13 CYS A 5 46.69 -88.13 REMARK 500 14 LEU A 3 -157.67 -68.76 REMARK 500 14 CYS A 11 -26.07 -37.30 REMARK 500 15 ARG A 2 50.29 -119.51 REMARK 500 15 LEU A 3 -112.84 -89.94 REMARK 500 15 CYS A 11 -5.60 -57.35 REMARK 500 15 HYP A 18 15.79 -65.75 REMARK 500 16 LEU A 3 -107.13 -78.53 REMARK 500 17 ARG A 2 40.77 -94.85 REMARK 500 17 LEU A 3 -147.25 -91.62 REMARK 500 17 CYS A 5 44.50 -87.52 REMARK 500 18 CYS A 11 -35.92 -39.17 REMARK 500 19 LEU A 3 -118.03 -95.27 REMARK 500 19 CYS A 11 -7.16 -59.92 REMARK 500 20 LEU A 3 -105.89 -77.61 REMARK 500 20 CYS A 11 -27.93 -34.38 REMARK 500 REMARK 500 REMARK: NULL DBREF 1R9I A 1 22 UNP P58925 CXM3A_CONPU 4 25 SEQADV 1R9I HYP A 8 UNP P58925 PRO 11 MODIFIED RESIDUE SEQADV 1R9I HYP A 18 UNP P58925 PRO 21 MODIFIED RESIDUE SEQADV 1R9I CY3 A 22 UNP P58925 CYS 25 MODIFIED RESIDUE SEQRES 1 A 22 PCA ARG LEU CYS CYS GLY PHE HYP LYS SER CYS ARG SER SEQRES 2 A 22 ARG GLN CYS LYS HYP HIS ARG CYS CY3 MODRES 1R9I PCA A 1 GLN PYROGLUTAMIC ACID MODRES 1R9I HYP A 8 PRO 4-HYDROXYPROLINE MODRES 1R9I HYP A 18 PRO 4-HYDROXYPROLINE MODRES 1R9I CY3 A 22 CYS 2-AMINO-3-MERCAPTO-PROPIONAMIDE HET PCA A 1 14 HET HYP A 8 15 HET HYP A 18 15 HET CY3 A 22 13 HETNAM PCA PYROGLUTAMIC ACID HETNAM HYP 4-HYDROXYPROLINE HETNAM CY3 2-AMINO-3-MERCAPTO-PROPIONAMIDE HETSYN HYP HYDROXYPROLINE FORMUL 1 PCA C5 H7 N O3 FORMUL 1 HYP 2(C5 H9 N O3) FORMUL 1 CY3 C3 H8 N2 O S HELIX 1 1 LYS A 9 SER A 13 5 5 SSBOND 1 CYS A 4 CYS A 16 1555 1555 2.01 SSBOND 2 CYS A 5 CYS A 21 1555 1555 2.02 LINK C PCA A 1 N ARG A 2 1555 1555 1.31 LINK C PHE A 7 N HYP A 8 1555 1555 1.32 LINK C HYP A 8 N LYS A 9 1555 1555 1.31 LINK SG CYS A 11 SG CY3 A 22 1555 1555 2.02 LINK C CYS A 21 N CY3 A 22 1555 1555 1.31 LINK C LYS A 17 N HYP A 18 1555 1555 1.32 LINK C HYP A 18 N HIS A 19 1555 1555 1.31 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1 HETATM 1 N PCA A 1 -6.750 3.394 1.240 1.00 0.00 N HETATM 2 CA PCA A 1 -6.432 3.231 2.675 1.00 0.00 C HETATM 3 CB PCA A 1 -6.713 1.752 3.007 1.00 0.00 C HETATM 4 CG PCA A 1 -7.513 1.182 1.844 1.00 0.00 C HETATM 5 CD PCA A 1 -7.195 2.112 0.705 1.00 0.00 C HETATM 6 OE PCA A 1 -7.297 1.828 -0.473 1.00 0.00 O HETATM 7 C PCA A 1 -4.982 3.636 2.985 1.00 0.00 C HETATM 8 O PCA A 1 -4.333 4.253 2.163 1.00 0.00 O HETATM 9 H PCA A 1 -6.671 4.271 0.706 1.00 0.00 H HETATM 10 HA PCA A 1 -7.098 3.860 3.247 1.00 0.00 H HETATM 11 HB2 PCA A 1 -7.266 1.689 3.934 1.00 0.00 H HETATM 12 HB3 PCA A 1 -5.789 1.210 3.146 1.00 0.00 H HETATM 13 HG2 PCA A 1 -8.569 1.200 2.068 1.00 0.00 H HETATM 14 HG3 PCA A 1 -7.188 0.176 1.621 1.00 0.00 H