HEADER TOXIN 25-JUN-99 1QS3 TITLE NMR SOLUTION CONFORMATION OF AN ANTITOXIC ANALOG OF ALPHA-CONOTOXIN GI COMPND MOL_ID: 1; COMPND 2 MOLECULE: DES-GLU1-[CYS3ALA]-DES-CYS13-ALPHA CONOTOXIN GI; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES KEYWDS CONOTOXIN, ANTITOXIC ANALOG, NICOTINIC ACETYLCHOLINE RECEPTOR, TOXIN EXPDTA SOLUTION NMR NUMMDL 30 AUTHOR K.H.MOK,K.-H.HAN REVDAT 4 12-MAR-14 1QS3 1 JRNL VERSN REVDAT 3 24-FEB-09 1QS3 1 VERSN REVDAT 2 01-APR-03 1QS3 1 JRNL REVDAT 1 06-OCT-99 1QS3 0 JRNL AUTH K.H.MOK,K.H.HAN JRNL TITL NMR SOLUTION CONFORMATION OF AN ANTITOXIC ANALOGUE OF JRNL TITL 2 ALPHA-CONOTOXIN GI: IDENTIFICATION OF A COMMON NICOTINIC JRNL TITL 3 ACETYLCHOLINE RECEPTOR ALPHA 1-SUBUNIT BINDING SURFACE FOR JRNL TITL 4 SMALL LIGANDS AND ALPHA-CONOTOXINS. JRNL REF BIOCHEMISTRY V. 38 11895 1999 JRNL REFN ISSN 0006-2960 JRNL PMID 10508392 JRNL DOI 10.1021/BI990558N REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 TITL CONUS PEPTIDES AS CHEMICAL PROBES FOR RECEPTORS AND ION REMARK 1 TITL 2 CHANNELS REMARK 1 REF CHEM.REV. V. 93 1923 1993 REMARK 1 REFN ISSN 0009-2665 REMARK 1 REFERENCE 2 REMARK 1 TITL DEVELOPMENT OF ANTAGONISTS OF DES-GLU1-CONOTOXIN GI REMARK 1 REF PEPTIDES: CHEMISTRY, 505 1990 REMARK 1 REF 2 STRUCTURE AND BIOLOGY, J. REMARK 1 REF 3 RIVIER AND G.B. MARSHALL, REMARK 1 REF 4 EDS, ESCOM, LEIDEN REMARK 1 REFERENCE 3 REMARK 1 TITL PARALYTIC ACTIVITY OF (DES-GLU1)CONOTOXIN GI ANALOGS IN THE REMARK 1 TITL 2 MOUSE DIAPHRAGM REMARK 1 REF INT.J.PEPT.PROTEIN RES. V. 34 455 1989 REMARK 1 REFN ISSN 0367-8377 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : DISCOVER 2.9.7 REMARK 3 AUTHORS : MSI-BIOSYM REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QS3 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-JUN-99. REMARK 100 THE RCSB ID CODE IS RCSB009233. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 277.00 REMARK 210 PH : 3.80 REMARK 210 IONIC STRENGTH : <0.05M REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : ALPHA-CONOTOXIN GI ANALOG 15, REMARK 210 5MM; ALPHA-CONOTOXIN GI ANALOG REMARK 210 15, 5MM REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY; DQF-COSY; PE-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : UNITY; INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : VNMR 5.3, FELIX 95.0, DGII 95.0, REMARK 210 MARDIGRAS 3.2 REMARK 210 METHOD USED : DISTANCE GEOMETRY AND RESTRAINED REMARK 210 MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 30 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 10,11,26 REMARK 210 REMARK 210 REMARK: THIS STRUCTURE DETERMINED USING 2D 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 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: 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),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 1 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 2 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 3 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 4 HIS A 9 CG HIS A 9 CD2 0.056 REMARK 500 5 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 6 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 7 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 8 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 9 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 10 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 11 HIS A 9 CG HIS A 9 CD2 0.056 REMARK 500 12 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 13 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 14 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 15 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 17 HIS A 9 CG HIS A 9 CD2 0.056 REMARK 500 18 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 19 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 20 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 21 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 22 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 23 HIS A 9 CG HIS A 9 CD2 0.056 REMARK 500 24 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 25 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 26 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 27 HIS A 9 CG HIS A 9 CD2 0.055 REMARK 500 29 HIS A 9 CG HIS A 9 CD2 0.056 REMARK 500 30 HIS A 9 CG HIS A 9 CD2 0.054 REMARK 500 REMARK 500 REMARK: NULL 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 1 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 1 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 2 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 2 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 3 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 3 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 4 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 4 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 5 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 5 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 6 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 6 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 7 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 7 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 7.9 DEGREES REMARK 500 8 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 8 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 9 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 9 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 10 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 10 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 11 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 11 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 12 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 12 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 13 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 13 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 14 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 14 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 15 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 15 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 16 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 16 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 17 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 17 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 18 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 18 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 19 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 19 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 20 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 20 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 21 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 21 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 22 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 22 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 23 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 23 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 24 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 24 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 25 ARG A 8 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 25 HIS A 9 ND1 - CE1 - NE2 ANGL. DEV. = 8.0 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 60 ANGLE DEVIATIONS. 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 HIS A 9 -74.65 -137.03 REMARK 500 2 HIS A 9 -67.04 -137.60 REMARK 500 3 CYS A 6 -60.16 -152.39 REMARK 500 3 HIS A 9 -71.85 -134.92 REMARK 500 4 HIS A 9 -62.60 -143.65 REMARK 500 5 CYS A 6 -69.78 -93.92 REMARK 500 5 HIS A 9 -68.01 -135.08 REMARK 500 6 CYS A 6 -71.21 -133.08 REMARK 500 6 HIS A 9 -71.63 -136.26 REMARK 500 7 HIS A 9 -65.05 -144.33 REMARK 500 8 HIS A 9 -71.92 -138.09 REMARK 500 9 CYS A 6 -71.50 -98.78 REMARK 500 9 HIS A 9 -66.68 -136.26 REMARK 500 10 CYS A 6 -71.76 -94.53 REMARK 500 10 HIS A 9 -71.85 -134.18 REMARK 500 11 HIS A 9 -62.73 -144.15 REMARK 500 12 CYS A 6 -67.69 -94.10 REMARK 500 12 HIS A 9 -71.35 -136.03 REMARK 500 13 HIS A 9 -71.69 -134.45 REMARK 500 14 HIS A 9 -66.31 -137.35 REMARK 500 15 CYS A 6 -69.91 -129.38 REMARK 500 15 HIS A 9 -64.57 -142.58 REMARK 500 16 HIS A 9 -68.13 -137.60 REMARK 500 17 CYS A 6 -68.94 -96.25 REMARK 500 17 HIS A 9 -71.56 -135.77 REMARK 500 18 CYS A 6 -71.11 -96.09 REMARK 500 18 HIS A 9 -71.37 -135.71 REMARK 500 19 CYS A 6 -60.53 -144.51 REMARK 500 19 HIS A 9 -69.96 -143.23 REMARK 500 20 CYS A 6 -70.51 -138.85 REMARK 500 20 HIS A 9 -72.05 -137.18 REMARK 500 21 CYS A 6 -70.57 -137.70 REMARK 500 21 HIS A 9 -71.58 -136.14 REMARK 500 22 CYS A 6 -70.46 -127.59 REMARK 500 22 HIS A 9 -66.98 -135.47 REMARK 500 23 CYS A 6 -68.71 -93.00 REMARK 500 23 HIS A 9 -71.61 -133.13 REMARK 500 24 HIS A 9 -65.95 -136.88 REMARK 500 25 HIS A 9 -75.21 -138.32 REMARK 500 26 CYS A 6 -57.54 -149.38 REMARK 500 26 HIS A 9 -67.60 -135.64 REMARK 500 27 CYS A 6 -70.57 -124.03 REMARK 500 27 HIS A 9 -71.51 -133.20 REMARK 500 28 CYS A 6 -69.93 -96.67 REMARK 500 28 HIS A 9 -68.88 -134.11 REMARK 500 29 HIS A 9 -71.38 -135.06 REMARK 500 30 CYS A 6 -57.72 -143.95 REMARK 500 30 HIS A 9 -69.24 -141.35 REMARK 500 REMARK 500 REMARK: NULL DBREF 1QS3 A 1 11 UNP P01519 CXAA_CONGE 2 12 SEQRES 1 A 12 CYS ALA ASN PRO ALA CYS GLY ARG HIS TYR SER NH2 HET NH2 A 12 3 HETNAM NH2 AMINO GROUP FORMUL 1 NH2 H2 N SSBOND 1 CYS A 1 CYS A 6 1555 1555 2.00 LINK C SER A 11 N NH2 A 12 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 MODEL 1