1I25 - Header Asymmetric Unit

HEADER TOXIN 06-FEB-01 1I25

TITLE THREE DIMENSIONAL SOLUTION STRUCTURE OF HUWENTOXIN-II BY 2D TITLE 2 1H-NMR

COMPND MOL_ID: 1; COMPND 2 MOLECULE: HUWENTOXIN-II; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: HWTX-II

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ORNITHOCTONUS HUWENA; SOURCE 3 ORGANISM_COMMON: CHINESE EARTH TIGER; SOURCE 4 ORGANISM_TAXID: 29017; SOURCE 5 ORGAN: VENOM GLAND; SOURCE 6 OTHER_DETAILS: VENOM

KEYWDS NEUROTOXIN, INSECTICIDAL TOXIN, DISULFIDE BONDS

EXPDTA SOLUTION NMR

NUMMDL 10

AUTHOR Q.SHU,S.Y.LU,X.C.GU,S.P.LIANG

REVDAT 3 24-FEB-09 1I25 1 VERSN REVDAT 2 05-APR-05 1I25 1 JRNL REVDAT 1 14-FEB-01 1I25 0

JRNL AUTH Q.SHU,S.Y.LU,X.C.GU,S.P.LIANG JRNL TITL THE STRUCTURE OF SPIDER TOXIN HUWENTOXIN-II WITH JRNL TITL 2 UNIQUE DISULFIDE LINKAGE: EVIDENCE FOR STRUCTURAL JRNL TITL 3 EVOLUTION. JRNL REF PROTEIN SCI. V. 11 245 2002 JRNL REFN ISSN 0961-8368 JRNL PMID 11790834 JRNL DOI 10.1110/PS.30502

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Q.SHU,S.Y.LU,X.C.GU,S.P.LIANG REMARK 1 TITL SEQUENCE-SPECIFIC ASSIGNMENT OF 1H-NMR RESONANCE REMARK 1 TITL 2 AND DETERMINATION OF THE SECONDARY STRUCTURE OF REMARK 1 TITL 3 HWTX-II REMARK 1 REF ACTA BIOCHIM.BIOPHYS.SINICA V. 33 65 2001 REMARK 1 REFN ISSN 0582-9879 REMARK 1 REFERENCE 2 REMARK 1 AUTH Q.SHU,R.H.HUANG,S.P.LIANG REMARK 1 TITL ASSIGNMENT OF DISULFIDE BONDS OF HUWENTOXIN-II BY REMARK 1 TITL 2 EDMAN DEGRADATION SEQUENCING AND STEPWISE THIOL REMARK 1 TITL 3 MODIFICATION REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 1 REFERENCE 3 REMARK 1 AUTH Q.SHU,S.P.LIANG REMARK 1 TITL PURIFICATION AND CHARACTERIZATION OF REMARK 1 TITL 2 HUWENTOXIN-II, A NEUROTOXIC PEPTIDE FROM THE VENOM REMARK 1 TITL 3 OF THE CHINESE BIRD SPIDER SELENOCOSMIA HUWENA REMARK 1 REF J.PEPT.RES. V. 53 486 1999 REMARK 1 REFN ISSN 1397-002X REMARK 1 DOI 10.1034/J.1399-3011.1999.00039.X

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON 592 NOE- REMARK 3 DERIVED DISTANCE CONSTRAINTS, 16 DIHEDRAL ANGEL RESTRAINTS AND REMARK 3 9 FAKE DISTANCE RESTRAINTS FROM DISULFIDE BONDS.

REMARK 4 REMARK 4 1I25 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-FEB-01. REMARK 100 THE RCSB ID CODE IS RCSB012808.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 300; 290 REMARK 210 PH : 5.4; 5.4 REMARK 210 IONIC STRENGTH : 20; NULL REMARK 210 PRESSURE : 1ATM; 1ATM REMARK 210 SAMPLE CONTENTS : 4 MM HUWENTOXIN-II; 20 MMOL/L REMARK 210 PHOSPHATE BUFFER; 90%H2O , 10% REMARK 210 D2O; 4 MM HUWENTOXIN-II; 20 REMARK 210 MMOL/L PHOSPHATE BUFFER; 100% REMARK 210 D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NOESY, DQF-COSY, TOCSY, E-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : DMX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : FELIX 98.0 REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 10 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: THIS STRUCTURE WAS DETERMINED USING STANDARD 2D REMARK 210 HOMONUCLEAR TECHNIQUES.

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: 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 GLU A 11 42.56 -91.93 REMARK 500 1 LYS A 30 -148.07 -102.77 REMARK 500 1 ASN A 32 32.87 -142.27 REMARK 500 2 MET A 33 -166.36 -161.14 REMARK 500 3 GLU A 11 49.09 -89.48 REMARK 500 3 LYS A 30 -152.75 -88.39 REMARK 500 3 ASN A 32 36.54 -146.48 REMARK 500 4 LYS A 30 -155.86 -80.86 REMARK 500 5 PHE A 6 -45.54 -147.14 REMARK 500 5 GLU A 11 32.47 -92.52 REMARK 500 5 LYS A 30 -152.58 -92.95 REMARK 500 5 ASN A 32 30.95 -149.66 REMARK 500 6 GLU A 11 48.59 -103.29 REMARK 500 6 ASP A 15 46.17 -140.09 REMARK 500 6 LYS A 30 -153.19 -83.43 REMARK 500 6 ASN A 32 33.35 -152.47 REMARK 500 7 GLU A 11 40.07 -97.71 REMARK 500 7 LYS A 30 -147.54 -92.42 REMARK 500 7 ASN A 32 37.67 -143.11 REMARK 500 8 CYS A 23 -167.49 -101.83 REMARK 500 8 LYS A 30 -118.08 -92.37 REMARK 500 8 ASN A 32 39.26 -146.99 REMARK 500 9 LYS A 30 -147.97 -104.59 REMARK 500 9 ASN A 32 33.96 -148.97 REMARK 500 10 PHE A 2 -138.82 -89.98 REMARK 500 10 GLU A 11 37.02 -92.65 REMARK 500 10 GLU A 13 38.86 -98.31 REMARK 500 10 LYS A 30 -148.47 -106.62 REMARK 500 10 ASN A 32 39.08 -154.14 REMARK 500 REMARK 500 REMARK: NULL

REMARK 750 REMARK 750 TURN REMARK 750 DETERMINATION METHOD: AUTHOR-DETERMINED

DBREF 1I25 A 1 37 UNP P82959 TXH21_ORNHU 49 85

SEQRES 1 A 37 LEU PHE GLU CYS SER PHE SER CYS GLU ILE GLU LYS GLU SEQRES 2 A 37 GLY ASP LYS PRO CYS LYS LYS LYS LYS CYS LYS GLY GLY SEQRES 3 A 37 TRP LYS CYS LYS PHE ASN MET CYS VAL LYS VAL

SHEET 1 A 2 TRP A 27 CYS A 29 0 SHEET 2 A 2 CYS A 34 LYS A 36 -1 O VAL A 35 N LYS A 28

SSBOND 1 CYS A 4 CYS A 18 1555 1555 2.02 SSBOND 2 CYS A 8 CYS A 29 1555 1555 2.02 SSBOND 3 CYS A 23 CYS A 34 1555 1555 2.02

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