10 20 30 40 50 60 70 80 1PX9 - Header ----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----| Asymmetric UnitHEADER TOXIN 03-JUL-03 1PX9
TITLE SOLUTION STRUCTURE OF THE NATIVE CNERG1 ERGTOXIN, A HIGHLY TITLE 2 SPECIFIC INHIBITOR OF HERG CHANNEL
COMPND MOL_ID: 1; COMPND 2 MOLECULE: ERGTOXIN; COMPND 3 CHAIN: A
SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CENTRUROIDES NOXIUS; SOURCE 3 ORGANISM_COMMON: MEXICAN SCORPION; SOURCE 4 ORGANISM_TAXID: 6878; SOURCE 5 SECRETION: VENOM
KEYWDS ALPHA/BETA MOLECULAR SCAFFOLD, TOXIN
EXPDTA SOLUTION NMR
AUTHOR K.FRENAL,K.WECKER,G.B.GURROLA,L.D.POSSANI,N.WOLFF, AUTHOR 2 M.DELEPIERRE
REVDAT 2 24-FEB-09 1PX9 1 VERSN REVDAT 1 22-JUN-04 1PX9 0
JRNL AUTH K.FRENAL,C.Q.XU,N.WOLFF,K.WECKER,G.B.GURROLA, JRNL AUTH 2 S.Y.ZHU,C.W.CHI,L.D.POSSANI,J.TYTGAT,M.DELEPIERRE JRNL TITL EXPLORING STRUCTURAL FEATURES OF THE INTERACTION JRNL TITL 2 BETWEEN THE SCORPION TOXINCNERG1 AND ERG K+ JRNL TITL 3 CHANNELS. JRNL REF PROTEINS V. 56 367 2004 JRNL REFN ISSN 0887-3585 JRNL PMID 15211519 JRNL DOI 10.1002/PROT.20102
REMARK 1
REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.
REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : DISCOVER INSIGHTII 2000 REMARK 3 AUTHORS : ACCELRYS TECHNOLOGIES REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON A TOTAL REMARK 3 OF 452 DISTANCE CONSTRAINTS (252 ARE INTRARESIDUAL NOE- REMARK 3 DERIVATED DISTANCE CONSTRAINTS, 200 ARE INTERRESIDUAL NOE- REMARK 3 DERIVATED DISTANCE CONSTRAINTS INCLUDING 49 LONG RANGE), 13 3J REMARK 3 AND 10 HBONDS
REMARK 4 REMARK 4 1PX9 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08
REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-JUL-03. REMARK 100 THE RCSB ID CODE IS RCSB019663.
REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 3 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.55 MG OF LYOPHILIZED REMARK 210 NATURAL ERGTX REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY, 2D TOCSY, DQF-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ, 600 MHZ REMARK 210 SPECTROMETER MODEL : INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : DISCOVER INSIGHTII 2000 REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 10 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 1 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH ACCEPTABLE REMARK 210 COVALENT GEOMETRY, STRUCTURES REMARK 210 WITH FAVORABLE NON-BOND REMARK 210 ENERGY, STRUCTURES WITH THE REMARK 210 LEAST RESTRAINT VIOLATIONS, REMARK 210 STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: SHIGEMI TUBE AND NANO-PROBE
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 LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 ALA A 42 C ALA A 42 OXT 0.136 REMARK 500 REMARK 500 REMARK: NULL 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 CYS A 34 CA - CB - SG ANGL. DEV. = 12.5 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 VAL A 6 -68.90 -131.15 REMARK 500 LYS A 8 48.64 -84.33 REMARK 500 TYR A 17 112.53 -166.13 REMARK 500 ASN A 30 -64.55 166.44 REMARK 500 MET A 35 141.22 163.57 REMARK 500 PHE A 37 36.04 -166.03 REMARK 500 REMARK 500 REMARK: NULL
DBREF 1PX9 A 1 42 UNP Q86QT3 SEK1_CENNO 1 42
SEQRES 1 A 42 ASP ARG ASP SER CYS VAL ASP LYS SER ARG CYS ALA LYS SEQRES 2 A 42 TYR GLY TYR TYR GLN GLU CYS GLN ASP CYS CYS LYS ASN SEQRES 3 A 42 ALA GLY HIS ASN GLY GLY THR CYS MET PHE PHE LYS CYS SEQRES 4 A 42 LYS CYS ALA
HELIX 1 1 ARG A 2 VAL A 6 5 5 HELIX 2 2 TYR A 17 GLY A 28 1 12
SHEET 1 A 3 TYR A 14 GLY A 15 0 SHEET 2 A 3 GLY A 32 MET A 35 -1 O CYS A 34 N GLY A 15 SHEET 3 A 3 CYS A 39 CYS A 41 -1 O LYS A 40 N THR A 33
SSBOND 1 CYS A 5 CYS A 23 1555 1555 2.03 SSBOND 2 CYS A 11 CYS A 34 1555 1555 2.01 SSBOND 3 CYS A 20 CYS A 39 1555 1555 2.02 SSBOND 4 CYS A 24 CYS A 41 1555 1555 2.02
CISPEP 1 MET A 35 PHE A 36 0 -5.34
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