10 20 30 40 50 60 70 80 1K64 - Header ----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----| Asymmetric UnitHEADER TOXIN 15-OCT-01 1K64
TITLE NMR STRUCTUE OF ALPHA-CONOTOXIN EI
COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CONOTOXIN EI; 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 CONUS SOURCE 5 ERMINEUS.
KEYWDS OMEGA-SHAPED CONTAINING A-HELIX, TOXIN
EXPDTA SOLUTION NMR
NUMMDL 20
AUTHOR K.H.PARK,J.E.SUK,R.JACOBSEN,W.R.GRAY,J.M.MCINTOSH,K.H.HAN
REVDAT 2 24-FEB-09 1K64 1 VERSN REVDAT 1 09-SEP-03 1K64 0
JRNL AUTH K.H.PARK,J.E.SUK,R.JACOBSEN,W.R.GRAY,J.M.MCINTOSH, JRNL AUTH 2 K.H.HAN JRNL TITL SOLUTION CONFORMATION OF ALPHA-CONOTOXIN EI, A JRNL TITL 2 NEUROMUSCULAR TOXIN SPECIFIC FOR THE ALPHA 1/DELTA JRNL TITL 3 SUBUNIT INTERFACE OF TORPEDO NICOTINIC JRNL TITL 4 ACETYLCHOLINE RECEPTOR JRNL REF J.BIOL.CHEM. V. 276 49028 2001 JRNL REFN ISSN 0021-9258 JRNL PMID 11641403 JRNL DOI 10.1074/JBC.M107798200
REMARK 1
REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.
REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : DISCOVER 2.9.7 REMARK 3 AUTHORS : MSI INC. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL
REMARK 4 REMARK 4 1K64 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08
REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 23-OCT-01. REMARK 100 THE RCSB ID CODE IS RCSB014607.
REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 278 REMARK 210 PH : 4.3 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : 1ATM REMARK 210 SAMPLE CONTENTS : 5MM A-CONOTOXIN EI REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY, PE-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ, 500 MHZ REMARK 210 SPECTROMETER MODEL : INOVA, UNITY REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : VNMR 5.3B, FELIX 95.0., DGII REMARK 210 3.0., CORMA 5.2, MARDIGRAS 3.2. REMARK 210 METHOD USED : DISTANCE GEOMETRY, SIMULATED REMARK 210 ANNEALING, MATRIX RELAXATION REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : BACK CALCULATED DATA AGREE REMARK 210 WITH EXPERIMENTAL NOESY REMARK 210 SPECTRUM,STRUCTURES WITH REMARK 210 ACCEPTABLE COVALENT GEOMETRY, REMARK 210 STRUCTURES WITH THE LEAST REMARK 210 RESTRAINT VIOLATIONS REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 10 REMARK 210 REMARK 210 REMARK: TOCSY, COSY, ROESY
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 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 3 CYS A 5 CA - CB - SG ANGL. DEV. = 9.0 DEGREES REMARK 500 6 CYS A 5 CA - CB - SG ANGL. DEV. = 8.2 DEGREES REMARK 500 7 CYS A 5 CA - CB - SG ANGL. DEV. = 7.8 DEGREES REMARK 500 8 CYS A 4 CA - CB - SG ANGL. DEV. = 8.1 DEGREES REMARK 500 8 CYS A 5 CA - CB - SG ANGL. DEV. = 6.8 DEGREES REMARK 500 12 CYS A 5 CA - CB - SG ANGL. DEV. = 10.4 DEGREES REMARK 500 14 CYS A 10 CA - CB - SG ANGL. DEV. = 6.8 DEGREES REMARK 500 19 CYS A 5 CA - CB - SG ANGL. DEV. = 8.9 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 1 PRO A 8 -71.74 -24.68 REMARK 500 1 ASN A 14 66.68 -151.47 REMARK 500 2 PRO A 8 -73.18 -28.00 REMARK 500 2 GLN A 16 -35.36 -39.49 REMARK 500 3 THR A 9 -52.82 -29.71 REMARK 500 3 ASN A 14 73.47 -153.62 REMARK 500 3 GLN A 16 -33.00 -38.18 REMARK 500 4 ASN A 14 73.24 -152.33 REMARK 500 5 ASN A 14 64.14 -151.11 REMARK 500 6 ASN A 14 68.88 -152.40 REMARK 500 7 PRO A 8 -69.13 -28.47 REMARK 500 7 ASN A 14 70.74 -151.38 REMARK 500 7 GLN A 16 -34.81 -39.09 REMARK 500 9 PRO A 8 -75.36 -22.29 REMARK 500 9 ASN A 14 70.87 -152.05 REMARK 500 9 GLN A 16 -39.33 -35.42 REMARK 500 10 PRO A 8 -73.32 -24.63 REMARK 500 10 ASN A 14 71.99 -151.97 REMARK 500 11 ASN A 14 71.37 -150.36 REMARK 500 11 GLN A 16 -56.70 -28.11 REMARK 500 12 ASN A 14 71.39 -152.66 REMARK 500 13 ASN A 14 82.95 -150.90 REMARK 500 15 THR A 9 -52.99 -29.89 REMARK 500 15 ASN A 14 68.79 -150.29 REMARK 500 16 PRO A 8 -54.19 -29.98 REMARK 500 16 THR A 9 -52.99 -29.82 REMARK 500 16 ASN A 14 73.40 -153.03 REMARK 500 16 GLN A 16 -36.10 -39.67 REMARK 500 17 PRO A 8 -70.86 -25.75 REMARK 500 17 ASN A 14 72.02 -151.73 REMARK 500 18 ASN A 14 74.99 -152.52 REMARK 500 18 GLN A 16 -60.92 -20.78 REMARK 500 19 ASN A 14 69.89 -152.22 REMARK 500 20 ASN A 14 73.22 -152.01 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 CYS A 10 ASN A 11 5 -146.61 REMARK 500 ILE A 17 CYS A 18 8 -144.74 REMARK 500 CYS A 10 ASN A 11 11 -144.84 REMARK 500 ILE A 17 CYS A 18 12 -149.77 REMARK 500 ARG A 1 ASP A 2 13 136.43 REMARK 500 CYS A 10 ASN A 11 20 -145.70 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 1 TYR A 6 0.07 SIDE_CHAIN REMARK 500 2 ARG A 1 0.10 SIDE_CHAIN REMARK 500 3 ARG A 1 0.08 SIDE_CHAIN REMARK 500 7 TYR A 6 0.10 SIDE_CHAIN REMARK 500 8 TYR A 6 0.10 SIDE_CHAIN REMARK 500 9 ARG A 1 0.10 SIDE_CHAIN REMARK 500 10 TYR A 6 0.08 SIDE_CHAIN REMARK 500 14 TYR A 6 0.09 SIDE_CHAIN REMARK 500 15 ARG A 1 0.11 SIDE_CHAIN REMARK 500 15 TYR A 6 0.12 SIDE_CHAIN REMARK 500 17 TYR A 6 0.08 SIDE_CHAIN REMARK 500 19 ARG A 1 0.09 SIDE_CHAIN REMARK 500 19 TYR A 6 0.12 SIDE_CHAIN REMARK 500 20 TYR A 6 0.11 SIDE_CHAIN 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 19
REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1PLP RELATED DB: PDB REMARK 900 1PLP CONTAINS THE CYTOPLASMIC DOMAIN OF PHOSPHOLAMBAN REMARK 900 RELATED ID: 1QS3 RELATED DB: PDB REMARK 900 1QS3 CONTAINS CONFORMATION OF AN ANTITOXIC ANALOG OF ALPHA- REMARK 900 CONOTOXIN GI REMARK 900 RELATED ID: 1DG2 RELATED DB: PDB REMARK 900 1DG2 CONTAINS CONFORMATION OF A-CONOTOXIN AUIB
DBREF 1K64 A 1 18 UNP P50982 CXA1_CONER 1 18
SEQADV 1K64 HYP A 3 UNP P50982 PRO 3 MODIFIED RESIDUE
SEQRES 1 A 19 ARG ASP HYP CYS CYS TYR HIS PRO THR CYS ASN MET SER SEQRES 2 A 19 ASN PRO GLN ILE CYS NH2
MODRES 1K64 HYP A 3 PRO 4-HYDROXYPROLINE
HET HYP A 3 15 HET NH2 A 19 3
HETNAM HYP 4-HYDROXYPROLINE HETNAM NH2 AMINO GROUP
HETSYN HYP HYDROXYPROLINE
FORMUL 1 HYP C5 H9 N O3 FORMUL 1 NH2 H2 N
HELIX 1 1 ASP A 2 TYR A 6 5 5 HELIX 2 2 HIS A 7 SER A 13 1 7 HELIX 3 3 ASN A 14 CYS A 18 5 5
SSBOND 1 CYS A 4 CYS A 10 1555 1555 2.04 SSBOND 2 CYS A 5 CYS A 18 1555 1555 2.04
LINK C ASP A 2 N HYP A 3 1555 1555 1.34 LINK C HYP A 3 N CYS A 4 1555 1555 1.33 LINK C CYS A 18 N NH2 A 19 1555 1555 1.33
SITE 1 AC1 2 PRO A 15 CYS A 18
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