HEADER TOXIN 05-JUL-99 1QUZ TITLE SOLUTION STRUCTURE OF THE POTASSIUM CHANNEL SCORPION TOXIN TITLE 2 HSTX1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: HSTX1 TOXIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 OTHER_DETAILS: CHEMICALLY SYNTHESIZED SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: SOLID PHASE CHEMICAL SYNTHESIS USING THE SOURCE 4 FMOC METHODOLOGY. THE SEQUENCE OF THIS PEPTIDE OCCURS SOURCE 5 NATURALLY IN SCORPIONS (SCORPIONIDAE). KEYWDS SCORPION TOXIN, ALPHA BETA, NMR, MOLECULAR MODELING, KEYWDS 2 POTASSIUM CHANNEL EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR P.SAVARIN,R.ROMI-LEBRUN,S.ZINN-JUSTIN,B.LEBRUN,T.NAKAJIMA, AUTHOR 2 B.GILQUIN,A.MENEZ REVDAT 3 24-FEB-09 1QUZ 1 VERSN REVDAT 2 20-DEC-05 1QUZ 3 JRNL REMARK ATOM REVDAT 1 07-JUL-00 1QUZ 0 JRNL AUTH P.SAVARIN,R.ROMI-LEBRUN,S.ZINN-JUSTIN,B.LEBRUN, JRNL AUTH 2 T.NAKAJIMA,B.GILQUIN,A.MENEZ JRNL TITL STRUCTURAL AND FUNCTIONAL CONSEQUENCES OF THE JRNL TITL 2 PRESENCE OF A FOURTH DISULFIDE BRIDGE IN THE JRNL TITL 3 SCORPION SHORT TOXINS: SOLUTION STRUCTURE OF THE JRNL TITL 4 POTASSIUM CHANNEL INHIBITOR HSTX1. JRNL REF PROTEIN SCI. V. 8 2672 1999 JRNL REFN ISSN 0961-8368 JRNL PMID 10631983 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH B.LEBRUN,R.ROMI-LEBRUN,M.F.MARTIN-EAUCLAIRE, REMARK 1 AUTH 2 A.YASUDA,M.ISHIGURO,Y.OYAMA,O.PONGS,T.NAKAJIMA REMARK 1 TITL A FOUR-DISULFIDE-BRIDGED TOXIN, WITH HIGH AFFINITY REMARK 1 TITL 2 TOWARDS VOLTAGE-GATEDC K+ CHANNELS, ISOLATED FROM REMARK 1 TITL 3 HETEROMETRUS SPINNIFER (SCORPIONIDAE) VENOM REMARK 1 REF BIOCHEM.J. V. 328 321 1997 REMARK 1 REFN ISSN 0264-6021 REMARK 1 REFERENCE 2 REMARK 1 AUTH H.ROCHAT,R.KHARRAT,J.M.SABATIER,P.MANSUELLE, REMARK 1 AUTH 2 M.CREST,M.F.MARTIN-EAUCLAIRE,F.SAMPIERI, REMARK 1 AUTH 3 R.OUGHIDENI,K.MABROUK,G.JACQUET,J.VAN RIETSCHOTEN, REMARK 1 AUTH 4 M.EL AYEB REMARK 1 TITL MAUROTOXIN, A FOUR DISULFIDE BRIDGES SCORPION REMARK 1 TITL 2 TOXIN ACTING ON K+ CHANNELS. REMARK 1 REF TOXICON V. 36 1609 1998 REMARK 1 REFN ISSN 0041-0101 REMARK 1 DOI 10.1016/S0041-0101(98)00153-6 REMARK 1 REFERENCE 3 REMARK 1 AUTH R.ROMI-LEBRUN,B.LEBRUN,M.F.MARTIN-EAUCLAIRE, REMARK 1 AUTH 2 M.ISHIGURO,P.ESCOUBAS,F.Q.WU,M.HISADA,O.PONGS, REMARK 1 AUTH 3 T.NAKAJIMA REMARK 1 TITL PURIFICATION, CHARACTERIZATION, AND SYNTHESIS OF REMARK 1 TITL 2 THREE NOVEL TOXINS FROM THE CHINESE SCORPION REMARK 1 TITL 3 BUTHUS MARTENSI, WHICH ACT ON K+ CHANNELS REMARK 1 REF BIOCHEMISTRY V. 36 13473 1997 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI971044W REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QUZ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-JUL-99. REMARK 100 THE RCSB ID CODE IS RCSB009290. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 308 REMARK 210 PH : 4.0 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : 5 MG HSTX1; TSP; HCL FOR PH; REMARK 210 5 MG HSTX1; TSP; DCL FOR PD REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : DQF-COSY, 2D NOESY, OFF- REMARK 210 RESONANCE ROESY (35) REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : FELIX 97, X-PLOR 3.1 REMARK 210 METHOD USED : A COMPLETLY EXTENDED REMARK 210 CONFORMATION WAS USED AS THE REMARK 210 STARTING STRUCTURE. 25 REMARK 210 ITERATIONS WERE MADE. 500 REMARK 210 STRUCTURES WERE CALCULATED. REMARK 210 RESTRAINED MOLECULAR DYNAMICS REMARK 210 AT 600K A SLOW COOLING. REMARK 210 MINIMIZATION WERE MADE WITH AN REMARK 210 ELECTROSTATIC TERM REMARK 210 TOPALLH22X.PRO AND REMARK 210 PARALLH22X.PRO REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 20 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : ALL CALCULATED STRUCTURES REMARK 210 SUBMITTED REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 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 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 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 1 TYR A 21 CB - CG - CD2 ANGL. DEV. = -5.4 DEGREES REMARK 500 1 TYR A 21 CB - CG - CD1 ANGL. DEV. = 5.9 DEGREES REMARK 500 1 ARG A 27 NE - CZ - NH2 ANGL. DEV. = 4.4 DEGREES REMARK 500 1 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 2 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 4.8 DEGREES REMARK 500 2 ARG A 14 NE - CZ - NH2 ANGL. DEV. = -4.2 DEGREES REMARK 500 2 TYR A 21 CB - CG - CD2 ANGL. DEV. = -5.9 DEGREES REMARK 500 2 TYR A 21 CB - CG - CD1 ANGL. DEV. = 5.8 DEGREES REMARK 500 2 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 2 ARG A 27 NE - CZ - NH2 ANGL. DEV. = -3.6 DEGREES REMARK 500 2 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 3 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 5.0 DEGREES REMARK 500 3 ARG A 4 NE - CZ - NH2 ANGL. DEV. = -5.5 DEGREES REMARK 500 3 TYR A 21 CB - CG - CD2 ANGL. DEV. = -6.8 DEGREES REMARK 500 3 TYR A 21 CB - CG - CD1 ANGL. DEV. = 6.7 DEGREES REMARK 500 3 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 4 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 5 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 5 ARG A 14 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 5 TYR A 21 CB - CG - CD2 ANGL. DEV. = -6.5 DEGREES REMARK 500 5 TYR A 21 CB - CG - CD1 ANGL. DEV. = 6.8 DEGREES REMARK 500 5 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 5 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 5.1 DEGREES REMARK 500 5 ARG A 33 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 6 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 5.5 DEGREES REMARK 500 6 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 4.6 DEGREES REMARK 500 6 ARG A 33 NE - CZ - NH2 ANGL. DEV. = -4.3 DEGREES REMARK 500 7 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 8 ARG A 27 NE - CZ - NH2 ANGL. DEV. = -4.1 DEGREES REMARK 500 8 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 9 CYS A 13 CA - CB - SG ANGL. DEV. = 8.4 DEGREES REMARK 500 9 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 6.8 DEGREES REMARK 500 9 ARG A 27 NE - CZ - NH2 ANGL. DEV. = -5.7 DEGREES REMARK 500 9 ARG A 33 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 10 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 11 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 11 ARG A 14 NE - CZ - NH2 ANGL. DEV. = 3.5 DEGREES REMARK 500 11 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 12 ARG A 14 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 12 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 12 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 13 TYR A 21 CB - CG - CD2 ANGL. DEV. = -3.6 DEGREES REMARK 500 13 ARG A 27 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 13 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 14 ARG A 14 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 14 ARG A 33 NE - CZ - NH2 ANGL. DEV. = -4.6 DEGREES REMARK 500 15 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 4.6 DEGREES REMARK 500 15 ARG A 27 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 17 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 5.2 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 63 ANGLE DEVIATIONS. 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 PRO A 20 56.59 -91.86 REMARK 500 2 PRO A 20 48.81 -73.67 REMARK 500 2 ASN A 26 100.92 77.84 REMARK 500 2 ARG A 27 -2.19 75.15 REMARK 500 3 ARG A 4 -56.91 -125.79 REMARK 500 3 PRO A 20 42.88 -76.59 REMARK 500 3 ARG A 27 13.24 84.10 REMARK 500 4 THR A 17 -60.72 -107.62 REMARK 500 4 TYR A 21 65.14 -109.92 REMARK 500 4 ARG A 27 12.59 80.92 REMARK 500 5 ARG A 4 -54.47 -128.69 REMARK 500 5 PRO A 20 31.24 -66.73 REMARK 500 5 ARG A 27 7.38 84.76 REMARK 500 6 ASN A 26 84.82 74.14 REMARK 500 6 ASN A 32 -159.43 -119.82 REMARK 500 7 ARG A 4 -59.42 -120.41 REMARK 500 7 THR A 17 -91.20 -101.91 REMARK 500 7 TYR A 21 55.40 -110.84 REMARK 500 7 ASN A 32 -151.58 -105.09 REMARK 500 8 ARG A 4 -60.93 -125.76 REMARK 500 8 CYS A 9 45.11 -90.22 REMARK 500 8 ARG A 27 14.41 83.05 REMARK 500 9 THR A 17 47.17 -144.61 REMARK 500 9 MET A 25 50.38 -105.55 REMARK 500 9 ASN A 26 79.29 83.26 REMARK 500 9 ARG A 27 -9.52 64.19 REMARK 500 10 ARG A 4 -59.34 -142.88 REMARK 500 10 THR A 17 47.84 -142.61 REMARK 500 10 MET A 25 71.83 -106.59 REMARK 500 10 ARG A 27 3.00 87.13 REMARK 500 11 THR A 17 -93.18 -97.04 REMARK 500 11 TYR A 21 56.13 -110.92 REMARK 500 11 MET A 25 47.43 -97.36 REMARK 500 11 ASN A 26 104.09 81.26 REMARK 500 11 ARG A 27 -30.15 72.80 REMARK 500 12 ASN A 26 86.69 78.59 REMARK 500 13 CYS A 9 46.02 -109.26 REMARK 500 13 ALA A 10 -66.00 -91.53 REMARK 500 13 PRO A 20 45.38 -89.81 REMARK 500 13 ARG A 27 7.74 80.75 REMARK 500 14 PRO A 20 39.16 -93.72 REMARK 500 14 MET A 25 55.86 -117.85 REMARK 500 14 ASN A 26 90.10 85.79 REMARK 500 14 ARG A 27 -9.10 62.56 REMARK 500 15 ARG A 4 -56.79 -132.78 REMARK 500 15 ARG A 27 -7.92 90.38 REMARK 500 16 ARG A 4 -58.32 -126.00 REMARK 500 16 PRO A 20 44.13 -76.76 REMARK 500 16 ARG A 27 1.23 84.74 REMARK 500 17 ARG A 4 -64.71 -131.73 REMARK 500 17 TYR A 21 74.67 -102.24 REMARK 500 18 THR A 17 -61.85 -102.07 REMARK 500 18 TYR A 21 54.11 -111.30 REMARK 500 18 ARG A 27 9.21 89.09 REMARK 500 19 PRO A 20 42.58 -96.17 REMARK 500 19 MET A 25 67.03 -113.40 REMARK 500 19 ASN A 26 56.44 70.82 REMARK 500 19 ARG A 27 -16.03 88.07 REMARK 500 20 ARG A 4 -56.29 -128.55 REMARK 500 20 PRO A 20 45.82 -82.00 REMARK 500 20 TYR A 21 76.79 -109.26 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 1 ARG A 33 0.09 SIDE_CHAIN REMARK 500 2 ARG A 14 0.17 SIDE_CHAIN REMARK 500 7 ARG A 14 0.20 SIDE_CHAIN REMARK 500 10 ARG A 14 0.16 SIDE_CHAIN REMARK 500 10 ARG A 27 0.09 SIDE_CHAIN REMARK 500 11 ARG A 27 0.10 SIDE_CHAIN REMARK 500 11 ARG A 33 0.08 SIDE_CHAIN REMARK 500 13 ARG A 33 0.14 SIDE_CHAIN REMARK 500 14 ARG A 14 0.10 SIDE_CHAIN REMARK 500 17 ARG A 27 0.09 SIDE_CHAIN REMARK 500 17 ARG A 33 0.08 SIDE_CHAIN REMARK 500 19 ARG A 14 0.24 SIDE_CHAIN REMARK 500 20 ARG A 33 0.15 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH2 A 35 DBREF 1QUZ A 1 34 UNP P59867 SCK1_HETSP 1 34 SEQRES 1 A 35 ALA SER CYS ARG THR PRO LYS ASP CYS ALA ASP PRO CYS SEQRES 2 A 35 ARG LYS GLU THR GLY CYS PRO TYR GLY LYS CYS MET ASN SEQRES 3 A 35 ARG LYS CYS LYS CYS ASN ARG CYS NH2 HET NH2 A 35 3 HETNAM NH2 AMINO GROUP FORMUL 1 NH2 H2 N HELIX 1 1 THR A 5 ASP A 8 5 4 HELIX 2 2 CYS A 9 THR A 17 1 9 SHEET 1 A 2 GLY A 22 CYS A 24 0 SHEET 2 A 2 CYS A 29 CYS A 31 -1 N LYS A 30 O LYS A 23 SSBOND 1 CYS A 3 CYS A 24 1555 1555 2.03 SSBOND 2 CYS A 9 CYS A 29 1555 1555 2.04 SSBOND 3 CYS A 13 CYS A 31 1555 1555 2.03 SSBOND 4 CYS A 19 CYS A 34 1555 1555 2.02 LINK C CYS A 34 N NH2 A 35 1555 1555 1.35 SITE 1 AC1 2 ARG A 33 CYS A 34 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 ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL MASTER 267 0 1 2 2 0 1 6 0 0 0 3 END