HEADER TOXIN 24-JAN-00 1DW5 TITLE NMR STRUCTURE OF OMEGA-CONOTOXIN MVIIA: NO CONSTRAINTS ON DISULPHIDE TITLE 2 BRIDGES COMPND MOL_ID: 1; COMPND 2 MOLECULE: OMEGA-CONOTOXIN MVIIA; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE SOURCE 4 OF THIS PEPTIDE NATURALLY OCCURS IN CONUS MAGUS (MAGUS CONE) KEYWDS CONOTOXIN, CALCIUM CHANNEL, CONFORMATIONAL EXCHANGE, TOXIN EXPDTA SOLUTION NMR NUMMDL 25 AUTHOR R.A.ATKINSON,B.KIEFFER,A.DEJAEGERE,F.SIROCKIN,J.-F.LEFEVRE REVDAT 6 16-FEB-22 1DW5 1 REMARK LINK REVDAT 5 24-FEB-09 1DW5 1 VERSN REVDAT 4 01-APR-03 1DW5 1 JRNL REVDAT 3 28-JUN-00 1DW5 1 SOURCE REVDAT 2 10-MAY-00 1DW5 1 JRNL ATOM COMPND SSBOND REVDAT 2 2 1 SEQRES SEQADV REVDAT 1 01-MAR-00 1DW5 0 JRNL AUTH R.A.ATKINSON,B.KIEFFER,A.DEJAEGERE,F.SIROCKIN,J.F.LEFEVRE JRNL TITL STRUCTURAL AND DYNAMIC CHARACTERIZATION OF OMEGA-CONOTOXIN JRNL TITL 2 MVIIA: THE BINDING LOOP EXHIBITS SLOW CONFORMATIONAL JRNL TITL 3 EXCHANGE. JRNL REF BIOCHEMISTRY V. 39 3908 2000 JRNL REFN ISSN 0006-2960 JRNL PMID 10747778 JRNL DOI 10.1021/BI992651H REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : XWINNMR 1.2, X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER (X-PLOR) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: SUBSTRUCTURE EMBEDDING BY DISTANCE REMARK 3 GEOMETRY, SIMULATED ANNEALING REGULARISATION OF FULL STRUCTURE, REMARK 3 SIMULATED ANNEALING REFINEMENT REMARK 4 REMARK 4 1DW5 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-FEB-00. REMARK 100 THE DEPOSITION ID IS D_1000010429. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 283.00 REMARK 210 PH : 3.50 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1 REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY; 2D COSY; 2D HOHAHA; 2D REMARK 210 13C-1H HSQC REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : AMX; DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : FELIX 2.10, X-PLOR 3.1 REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 500 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 25 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: TEMPERATURE DEPENDENCE OF CHEMICAL SHIFTS, NH EXCHANGE REMARK 210 INTO D2O, RELAXATION MEASUREMENTS AT 500 AND 600 MHZ 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 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O LYS A 2 H CYS A 16 1.55 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 LYS A 4 159.81 -43.56 REMARK 500 1 LYS A 7 154.98 56.33 REMARK 500 1 CYS A 8 -147.33 178.37 REMARK 500 1 SER A 9 -142.52 -137.28 REMARK 500 1 LEU A 11 77.28 83.96 REMARK 500 1 TYR A 13 52.51 70.69 REMARK 500 1 THR A 17 75.55 -154.34 REMARK 500 1 SER A 19 -164.55 -127.37 REMARK 500 2 LYS A 4 157.88 -49.46 REMARK 500 2 LYS A 7 156.17 55.41 REMARK 500 2 CYS A 8 -165.57 177.47 REMARK 500 2 SER A 9 -145.14 -101.53 REMARK 500 2 LEU A 11 -105.91 -133.08 REMARK 500 2 MET A 12 -58.16 67.41 REMARK 500 2 TYR A 13 45.49 71.02 REMARK 500 2 SER A 19 -158.96 -137.09 REMARK 500 2 SER A 22 13.49 59.84 REMARK 500 3 LYS A 7 155.32 55.79 REMARK 500 3 CYS A 8 -175.17 178.84 REMARK 500 3 SER A 9 -142.01 -98.68 REMARK 500 3 ARG A 10 -62.45 -92.34 REMARK 500 4 LYS A 7 145.09 -22.51 REMARK 500 4 SER A 9 -122.87 -93.92 REMARK 500 4 TYR A 13 38.13 70.29 REMARK 500 4 THR A 17 -144.57 -99.42 REMARK 500 4 SER A 22 24.64 47.43 REMARK 500 5 LYS A 2 -167.11 -113.21 REMARK 500 5 ALA A 6 73.89 -69.42 REMARK 500 5 LYS A 7 150.30 -31.59 REMARK 500 5 SER A 9 -125.75 -94.99 REMARK 500 5 TYR A 13 80.57 53.28 REMARK 500 5 ASP A 14 -38.25 -136.35 REMARK 500 5 SER A 22 22.62 48.19 REMARK 500 6 LYS A 4 156.53 -45.30 REMARK 500 6 LYS A 7 151.33 56.41 REMARK 500 6 CYS A 8 -151.06 177.73 REMARK 500 6 SER A 9 -123.48 -115.27 REMARK 500 6 LEU A 11 70.33 -150.58 REMARK 500 6 SER A 22 23.55 47.72 REMARK 500 7 ALA A 6 26.68 -80.00 REMARK 500 7 LYS A 7 155.55 55.43 REMARK 500 7 CYS A 8 -158.67 -179.20 REMARK 500 7 SER A 9 -102.37 -106.96 REMARK 500 7 ARG A 10 -44.36 -140.23 REMARK 500 7 LEU A 11 39.01 -140.22 REMARK 500 7 TYR A 13 73.14 60.85 REMARK 500 7 THR A 17 72.04 -153.18 REMARK 500 8 LYS A 2 -166.75 -107.48 REMARK 500 8 LYS A 7 149.14 -28.44 REMARK 500 8 SER A 9 -101.20 -94.07 REMARK 500 REMARK 500 THIS ENTRY HAS 142 RAMACHANDRAN OUTLIERS. 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 26 DBREF 1DW5 A 1 25 UNP P05484 CXO7A_CONMA 1 25 SEQRES 1 A 26 CYS LYS GLY LYS GLY ALA LYS CYS SER ARG LEU MET TYR SEQRES 2 A 26 ASP CYS CYS THR GLY SER CYS ARG SER GLY LYS CYS NH2 HET NH2 A 26 3 HETNAM NH2 AMINO GROUP FORMUL 1 NH2 H2 N SSBOND 1 CYS A 1 CYS A 16 1555 1555 2.02 SSBOND 2 CYS A 8 CYS A 20 1555 1555 2.02 SSBOND 3 CYS A 15 CYS A 25 1555 1555 2.02 LINK C CYS A 25 N NH2 A 26 1555 1555 1.30 SITE 1 AC1 2 SER A 19 CYS A 25 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