HEADER TOXIN 13-MAY-02 1LQR OBSLTE 13-JUL-04 1LQR 1TYK TITLE SOLUTION STRUCTURE OF A TOXIN FROM THE TARANTULA, TITLE 2 GRAMMOSTOLA SPATULATA, WHICH INHIBITS MECHANOSENSITIVE ION TITLE 3 CHANNELS COMPND MOL_ID: 1; COMPND 2 MOLECULE: GSMTX4; COMPND 3 CHAIN: A SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: GRAMMOSTOLA SPATULATA; SOURCE 3 ORGANISM_COMMON: CHILEAN ROSE TARANTULA; SOURCE 4 OTHER_DETAILS: VENOM KEYWDS INHIBITOR, CYSTEINE KNOT, BETA-SHEET EXPDTA NMR, 20 STRUCTURES AUTHOR R.E.OSWALD,T.M.SUCHYNA,R.MCFEETERS,P.GOTTLIEB,F.SACHS REVDAT 3 13-JUL-04 1LQR 1 OBSLTE REVDAT 2 17-JUL-02 1LQR 1 AUTHOR REVDAT 1 10-JUL-02 1LQR 0 JRNL AUTH R.E.OSWALD,T.M.SUCHYNA,R.MCFEETERS,P.GOTTLIEB, JRNL AUTH 2 F.SACHS JRNL TITL SOLUTION STRUCTURE OF PEPTIDE TOXINS THAT BLOCK JRNL TITL 2 MECHANOSENSITIVE ION CHANNELS JRNL REF J.BIOL.CHEM. V. 277 34443 2002 JRNL REFN ASTM JBCHA3 US ISSN 0021-9258 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.M.SUCHYNA,J.H.JOHNSON,K.HAMER,J.F.LEYKAM, REMARK 1 AUTH 2 D.A.GAGE,H.F.CLEMO,C.M.BAUMGARTEN,F.SACHS REMARK 1 TITL IDENTIFICATION OF A PEPTIDE TOXIN FROM GRAMMOSTOLA REMARK 1 TITL 2 SPATULATA SPIDER VENOM THAT BLOCKS REMARK 1 TITL 3 CATION-SELECTIVE STRETCH-ACTIVATED CHANNELS REMARK 1 REF J.GEN.PHYSIOL. V. 115 583 2000 REMARK 1 REFN US ISSN 0022-1295 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: NULL REMARK 4 REMARK 4 1LQR COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-MAY-2002. REMARK 100 THE RCSB ID CODE IS RCSB016193. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 278; 289; 293; 298; 308 REMARK 210 PH : 4.5; 4.5; 4.5; 4.5; 4.5 REMARK 210 IONIC STRENGTH : 1 MM NACL; 1 MM NACL; 1 MM REMARK 210 NACL; 1 MM NACL; 1 MM NACL REMARK 210 PRESSURE : AMBIENT; AMBIENT; AMBIENT; REMARK 210 AMBIENT; AMBIENT REMARK 210 SAMPLE CONTENTS : 2 MM NATURAL ABUNDANCE REMARK 210 GSMTX4; 2 MM NATURAL ABUNDANCE REMARK 210 GSMTX4 REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY, DQF-COSY, E-COSY, REMARK 210 2D TOCSY, 1H, 15N-HSQC, 1H, REMARK 210 13C-HSQC REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ, 500 MHZ REMARK 210 SPECTROMETER MODEL : INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : FELIX 2.2, NMRPIPE 2.1, REMARK 210 SPARKY 3.95, CNS 2.1 REMARK 210 METHOD USED : DISTANCE GEOMETRY SIMULATED REMARK 210 ANNEALING RAMACHANDRAN REMARK 210 REFINEMENT REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 200 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LEAST REMARK 210 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: H-D EXCHANGE USING 2D TOCSY FOLLOWING RESUSPENSION OF REMARK 210 LYOPHILIZED PROTEIN IN 100% D2O 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 M RES CSSEQI PSI PHI REMARK 500 1 TRP A 6 -58.47 68.08 REMARK 500 1 ASN A 12 -73.31 60.02 REMARK 500 2 TRP A 6 -62.19 72.94 REMARK 500 3 TRP A 6 -53.28 68.33 REMARK 500 4 TRP A 6 -51.64 66.76 REMARK 500 5 TRP A 6 -56.08 80.80 REMARK 500 6 TRP A 6 -50.69 71.56 REMARK 500 7 TRP A 6 -53.98 71.82 REMARK 500 8 TRP A 6 -62.52 72.63 REMARK 500 9 TRP A 6 -51.74 79.72 REMARK 500 10 TRP A 6 -44.15 75.77 REMARK 500 11 TRP A 6 -45.44 75.81 REMARK 500 12 TRP A 6 -51.50 77.04 REMARK 500 13 TRP A 6 -47.81 65.34 REMARK 500 14 TRP A 6 -56.26 73.11 REMARK 500 15 TRP A 6 -44.55 74.66 REMARK 500 15 ASN A 12 -78.15 62.81 REMARK 500 16 TRP A 6 -52.24 77.51 REMARK 500 17 TRP A 6 -54.41 75.43 REMARK 500 17 ASN A 12 -56.87 69.63 REMARK 500 18 TRP A 6 -56.31 68.65 REMARK 500 19 TRP A 6 -65.81 76.24 REMARK 500 20 TRP A 6 -52.25 72.24 DBREF 1LQR A 1 35 PIR A59371 A59371 1 35 SEQRES 1 A 35 GLY CYS LEU GLU PHE TRP TRP LYS CYS ASN PRO ASN ASP SEQRES 2 A 35 ASP LYS CYS CYS ARG PRO LYS LEU LYS CYS SER LYS LEU SEQRES 3 A 35 PHE LYS LEU CYS ASN PHE SER SER GLY SSBOND 1 CYS A 2 CYS A 17 SSBOND 2 CYS A 9 CYS A 23 SSBOND 3 CYS A 16 CYS A 30 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