1MTQ - Header Asymmetric Unit

HEADER TOXIN 22-SEP-02 1MTQ

TITLE THREE-DIMENSIONAL SOLUTION STRUCTURE OF ALPHA-CONOTOXIN GID TITLE 2 BY NMR SPECTROSCOPY

COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CONOTOXIN GID; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THIS SEQUENCE OCCURS IN NATURALLY IN CONUS SOURCE 4 GEOGRAPHUS VENOM.

KEYWDS ALPHA-HELIX, TOXIN

EXPDTA SOLUTION NMR

NUMMDL 20

AUTHOR A.NICKE,M.L.LOUGHNAN,E.L.MILLARD,P.F.ALEWOOD,D.J.ADAMS, AUTHOR 2 N.L.DALY,D.J.CRAIK,R.J.LEWIS

REVDAT 2 24-FEB-09 1MTQ 1 VERSN REVDAT 1 11-FEB-03 1MTQ 0

JRNL AUTH A.NICKE,M.L.LOUGHNAN,E.L.MILLARD,P.F.ALEWOOD, JRNL AUTH 2 D.J.ADAMS,N.L.DALY,D.J.CRAIK,R.J.LEWIS JRNL TITL ISOLATION, STRUCTURE, AND ACTIVITY OF GID, A NOVEL JRNL TITL 2 ALPHA 4/7-CONOTOXIN WITH AN EXTENDED N-TERMINAL JRNL TITL 3 SEQUENCE JRNL REF J.BIOL.CHEM. V. 278 3137 2003 JRNL REFN ISSN 0021-9258 JRNL PMID 12419800 JRNL DOI 10.1074/JBC.M210280200

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 REMARK 3 AUTHORS : BRUNGER ET AL. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON A TOTAL REMARK 3 OF 183 NOE DERIVED DISTANCE RESTRAINTS, 15 DIHEDRAL ANGLE REMARK 3 RESTRAINTS.

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-SEP-02. REMARK 100 THE RCSB ID CODE IS RCSB017175.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 287 REMARK 210 PH : 2.8 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 2.5MM PEPTIDE; 90% H2O, 10% REMARK 210 D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D TOCSY, 2D NOESY, DQF-COSY, REMARK 210 E-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 750 MHZ REMARK 210 SPECTROMETER MODEL : DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR 2.6, XEASY 1.3.7, REMARK 210 DYANA 1.5 REMARK 210 METHOD USED : INITIAL STRUCTURES WERE REMARK 210 CALCULATED USING TORSION ANGLE REMARK 210 DYNAMICS AND STRUCTURES WERE REMARK 210 REFINED IN A WATER SHELL USING REMARK 210 CARTESIAN DYNAMICS. REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : ALL CALCULATED STRUCTURES REMARK 210 SUBMITTED, STRUCTURES WITH THE REMARK 210 LOWEST ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 16 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 3 ARG A 2 34.82 -82.74 REMARK 500 5 SER A 7 36.97 -83.90 REMARK 500 6 ARG A 2 -42.10 -170.65 REMARK 500 9 ARG A 2 -76.92 -90.42 REMARK 500 9 SER A 7 39.08 -88.91 REMARK 500 10 SER A 7 30.23 -86.57 REMARK 500 11 SER A 7 44.93 -84.67 REMARK 500 14 ARG A 2 -36.14 77.91 REMARK 500 14 SER A 7 41.23 -80.22 REMARK 500 15 ARG A 2 -10.69 -161.81 REMARK 500 15 SER A 7 30.57 -95.57 REMARK 500 20 SER A 7 44.90 -87.46 REMARK 500 REMARK 500 REMARK: NULL

REMARK 999 REMARK 999 AN APPROPRIATE SEQUENCE DATABASE MATCH WAS NOT REMARK 999 FOUND USING BLAST.

SEQRES 1 A 19 ILE ARG ASP CGU CYS CYS SER ASN PRO ALA CYS ARG VAL SEQRES 2 A 19 ASN ASN HYP HIS VAL CYS

MODRES 1MTQ CGU A 4 GLU GAMMA-CARBOXY-GLUTAMIC ACID MODRES 1MTQ HYP A 16 PRO 4-HYDROXYPROLINE

HET CGU A 4 17 HET HYP A 16 15

HETNAM CGU GAMMA-CARBOXY-GLUTAMIC ACID HETNAM HYP 4-HYDROXYPROLINE

HETSYN HYP HYDROXYPROLINE

FORMUL 1 CGU C6 H9 N O6 FORMUL 1 HYP C5 H9 N O3

HELIX 1 1 ASN A 8 ASN A 15 1 8

SSBOND 1 CYS A 5 CYS A 11 1555 1555 2.03 SSBOND 2 CYS A 6 CYS A 19 1555 1555 2.03

LINK C ASP A 3 N CGU A 4 1555 1555 1.32 LINK C CGU A 4 N CYS A 5 1555 1555 1.33 LINK C ASN A 15 N HYP A 16 1555 1555 1.34 LINK C HYP A 16 N HIS A 17 1555 1555 1.33

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