HEADER TOXIN 29-OCT-02 1N3V OBSLTE 04-MAR-03 1N3V 1NXN TITLE SOLUTION STRUCTURE OF CONTRYPHAN-VN COMPND MOL_ID: 1; COMPND 2 MOLECULE: CONTRYPHAN-VN, MAJOR FORM (CIS CONFORMER); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SOURCE 4 SEQUENCE OF THE PEPTIDE IS NATURALLY FOUND IN THE VENOM SOURCE 5 DUCT OF CONUS VENTRICOSUS (MARINE CONE SNAIL). KEYWDS D-TRYPTOPHAN, CYCLIC PEPTIDE, DISULFIDE BRIDGE, CIS-TRANS KEYWDS 2 ISOMERISM, TOXIN EXPDTA NMR, 20 STRUCTURES AUTHOR T.ELISEO,D.O.CICERO,F.POLTICELLI,E.SCHININA,G.RAYBAUDI- AUTHOR 2 MASSILIA,M.PACI,P.ASCENZI REVDAT 2 04-MAR-03 1N3V 1 OBSLTE REVDAT 1 13-NOV-02 1N3V 0 JRNL AUTH T.ELISEO,D.O.CICERO,F.POLTICELLI,E.SCHININA, JRNL AUTH 2 G.RAYBAUDI-MASSILIA,M.PACI,P.ASCENZI JRNL TITL SOLUTION STRUCTURE BY NMR SPECTROSCOPY OF THE JRNL TITL 2 CYCLIC PEPTIDE CONTRYPHAN-VN WITH A D-TRP FROM JRNL TITL 3 CONUS VENTRICOSUS HAS A STABLE SALT BRIDGE IN JRNL TITL 4 TERTIARY STRUCTURE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NO REFINEMENT WAS PERFORMED REMARK 4 REMARK 4 1N3V COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-OCT-2002. REMARK 100 THE RCSB ID CODE IS RCSB017485. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 3.5 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 5 MM PROTEIN REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D TOCSY, 2D ROESY, COSY, 1H- REMARK 210 15N HSQC, 1H-13C HMQC, 1H-13C REMARK 210 HSQC-TOCSY REMARK 210 SPECTROMETER FIELD STRENGTH : 400 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR, NMRPIPE, NMRVIEW, REMARK 210 XPLOR 1.5 REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 200 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : LOWEST RESTRAINT VIOLATIONS, REMARK 210 LOWEST ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: HETERONUCLEAR EXPERIMENTS WERE PERFORMED AT NATURAL REMARK 210 ABUNDANCE 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),F6.3) REMARK 500 REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 1 ASP A 2 N ASP A 2 CA -0.352 REMARK 500 1 ASP A 2 CA ASP A 2 CB -0.433 REMARK 500 1 CYS A 3 CB CYS A 3 SG -0.249 REMARK 500 1 LYS A 6 CG LYS A 6 CD -0.591 REMARK 500 1 LYS A 6 CD LYS A 6 CE -0.265 REMARK 500 1 LYS A 6 CE LYS A 6 NZ -0.463 REMARK 500 1 DTR A 5 C LYS A 6 N -0.270 REMARK 500 1 CYS A 9 CA CYS A 9 CB -0.537 REMARK 500 1 CYS A 9 CB CYS A 9 SG -0.278 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: ENGH AND HUBER, 1991 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 1 LYS A 6 CB - CG - CD ANGL. DEV. = 56.2 DEGREES REMARK 500 1 LYS A 6 CG - CD - CE ANGL. DEV. = 63.5 DEGREES REMARK 500 1 LYS A 6 CD - CE - NZ ANGL. DEV. = 24.8 DEGREES REMARK 500 1 DTR A 5 O - C - N ANGL. DEV. =-20.2 DEGREES 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 6 LYS A 6 136.50 61.96 REMARK 500 17 LYS A 6 142.64 62.63 SEQRES 1 A 10 GLY ASP CYS PRO DTR LYS PRO TRP CYS NH2 MODRES 1N3V DTR A 5 TRP D-TRYPTOPHAN HET DTR A 5 24 HET NH2 A 10 3 HETNAM DTR D-TRYPTOPHAN HETNAM NH2 AMINO GROUP FORMUL 1 DTR C11 H12 N2 O2 FORMUL 1 NH2 H3 N SSBOND 1 CYS A 3 CYS A 9 CISPEP 1 CYS A 3 PRO A 4 1 -0.41 CISPEP 2 CYS A 3 PRO A 4 2 -0.38 CISPEP 3 CYS A 3 PRO A 4 3 -0.40 CISPEP 4 CYS A 3 PRO A 4 4 -0.26 CISPEP 5 CYS A 3 PRO A 4 5 -0.64 CISPEP 6 CYS A 3 PRO A 4 6 0.04 CISPEP 7 CYS A 3 PRO A 4 7 -0.24 CISPEP 8 CYS A 3 PRO A 4 8 -0.14 CISPEP 9 CYS A 3 PRO A 4 9 -0.19 CISPEP 10 CYS A 3 PRO A 4 10 -0.04 CISPEP 11 CYS A 3 PRO A 4 11 -0.67 CISPEP 12 CYS A 3 PRO A 4 12 -1.07 CISPEP 13 CYS A 3 PRO A 4 13 -0.22 CISPEP 14 CYS A 3 PRO A 4 14 0.00 CISPEP 15 CYS A 3 PRO A 4 15 -0.30 CISPEP 16 CYS A 3 PRO A 4 16 -0.10 CISPEP 17 CYS A 3 PRO A 4 17 0.13 CISPEP 18 CYS A 3 PRO A 4 18 -0.28 CISPEP 19 CYS A 3 PRO A 4 19 -0.36 CISPEP 20 CYS A 3 PRO A 4 20 -0.38 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