HEADER TOXIN 03-MAY-01 1IK8 TITLE NMR STRUCTURE OF ALPHA-BUNGAROTOXIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: LONG NEUROTOXIN 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ALPHA-BUNGAROTOXIN SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BUNGARUS MULTICINCTUS; SOURCE 3 ORGANISM_COMMON: MANY-BANDED KRAIT; SOURCE 4 ORGANISM_TAXID: 8616 KEYWDS ALPHA-BUNGAROTOXIN, TOXIN, NICOTINIC-ACETILCHOLINE RECEPTOR EXPDTA SOLUTION NMR MDLTYP MINIMIZED AVERAGE AUTHOR N.NICCOLAI,A.CIUTTI,O.SPIGA REVDAT 4 23-FEB-22 1IK8 1 REMARK REVDAT 3 24-FEB-09 1IK8 1 VERSN REVDAT 2 27-FEB-02 1IK8 1 JRNL REMARK REVDAT 1 16-MAY-01 1IK8 0 JRNL AUTH M.SCARSELLI,O.SPIGA,A.CIUTTI,A.BERNINI,L.BRACCI,B.LELLI, JRNL AUTH 2 L.LOZZI,D.CALAMANDREI,D.DI MARO,S.KLEIN,N.NICCOLAI JRNL TITL NMR STRUCTURE OF ALPHA-BUNGAROTOXIN FREE AND BOUND TO A JRNL TITL 2 MIMOTOPE OF THE NICOTINIC ACETYLCHOLINE RECEPTOR. JRNL REF BIOCHEMISTRY V. 41 1457 2002 JRNL REFN ISSN 0006-2960 JRNL PMID 11814338 JRNL DOI 10.1021/BI011012F REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH O.SPIGA,A.BERNINI,M.SCARSELLI,A.CIUTTI,L.BRACCI,L.LOZZI, REMARK 1 AUTH 2 B.LELLI,D.DI MARO,D.CALAMANDREI,N.NICCOLAI REMARK 1 TITL PEPTIDE-PROTEIN INTERACTIONS STUDIED BY SURFACE PLASMON AND REMARK 1 TITL 2 NUCLEAR MAGNETIC RESONANCES REMARK 1 REF FEBS LETT. V. 511 33 2002 REMARK 1 REFN ISSN 0014-5793 REMARK 1 DOI 10.1016/S0014-5793(01)03274-4 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : XWINNMR 2.1, AMBER 4.1 REMARK 3 AUTHORS : BRUKER (XWINNMR), PEARLMAN (AMBER) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON A TOTAL OF REMARK 3 1096 RESTRAINTS REMARK 4 REMARK 4 1IK8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-MAY-01. REMARK 100 THE DEPOSITION ID IS D_1000013359. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 5.67 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : 0.5MM ALPHA-BUNGAROTOXIN; 90% REMARK 210 H2O, 10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D TOCSY; 2D NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR 2.1, NMRVIEW 4.1, DYANA REMARK 210 1.5 REMARK 210 METHOD USED : DISTANCE GEOMETRY, SIMULATED REMARK 210 ANNEALING, MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 1 REMARK 210 CONFORMERS, SELECTION CRITERIA : MINIMIZED AVERAGE STRUCTURE REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 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 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 VAL A 14 OG1 THR A 15 1.42 REMARK 500 SG CYS A 16 CB CYS A 44 2.12 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 VAL A 2 CG1 - CB - CG2 ANGL. DEV. = 10.2 DEGREES REMARK 500 THR A 5 CA - CB - CG2 ANGL. DEV. = -14.9 DEGREES REMARK 500 ALA A 13 N - CA - CB ANGL. DEV. = 13.3 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 VAL A 2 -103.32 -176.97 REMARK 500 THR A 5 -112.53 -144.42 REMARK 500 THR A 6 -147.99 -72.12 REMARK 500 ALA A 7 76.11 104.20 REMARK 500 THR A 8 58.64 81.81 REMARK 500 SER A 9 -150.62 102.03 REMARK 500 ILE A 11 -152.70 52.86 REMARK 500 SER A 12 39.83 -177.64 REMARK 500 ALA A 13 -35.19 99.74 REMARK 500 VAL A 14 -78.28 3.76 REMARK 500 THR A 15 21.34 107.04 REMARK 500 CYS A 16 -146.78 65.82 REMARK 500 PRO A 17 -144.72 -79.88 REMARK 500 PRO A 18 -113.79 -75.11 REMARK 500 GLU A 20 62.81 65.91 REMARK 500 ASN A 21 146.18 98.82 REMARK 500 LEU A 22 155.23 93.87 REMARK 500 CYS A 23 106.49 -160.46 REMARK 500 MET A 27 166.87 84.30 REMARK 500 TRP A 28 -42.09 161.79 REMARK 500 CYS A 29 62.48 -113.04 REMARK 500 ASP A 30 -79.54 12.04 REMARK 500 ALA A 31 -0.85 174.25 REMARK 500 CYS A 33 46.45 25.53 REMARK 500 SER A 35 -175.41 98.63 REMARK 500 ARG A 36 -135.01 59.74 REMARK 500 LYS A 38 16.83 -146.33 REMARK 500 VAL A 39 77.94 -119.38 REMARK 500 VAL A 40 -167.66 -104.50 REMARK 500 LEU A 42 87.57 -14.18 REMARK 500 CYS A 44 149.14 44.14 REMARK 500 ALA A 45 39.47 -151.84 REMARK 500 ALA A 46 -98.37 131.63 REMARK 500 CYS A 48 88.22 38.38 REMARK 500 SER A 50 -53.54 81.30 REMARK 500 LYS A 51 -133.61 79.08 REMARK 500 PRO A 53 -72.41 -74.97 REMARK 500 TYR A 54 -166.97 33.35 REMARK 500 GLU A 55 -112.33 -19.09 REMARK 500 THR A 58 -158.91 170.66 REMARK 500 CYS A 59 111.70 178.76 REMARK 500 CYS A 60 -159.67 -118.19 REMARK 500 SER A 61 47.63 153.01 REMARK 500 ASP A 63 -33.79 112.86 REMARK 500 LYS A 64 173.19 177.76 REMARK 500 CYS A 65 48.52 158.26 REMARK 500 ASN A 66 52.60 -164.53 REMARK 500 PRO A 67 -142.01 -76.83 REMARK 500 HIS A 68 122.63 163.78 REMARK 500 PRO A 69 -163.35 -75.03 REMARK 500 REMARK 500 THIS ENTRY HAS 53 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 VAL A 2 -11.61 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1HN7 RELATED DB: PDB REMARK 900 1HN7 CONTAINS THE SAME PROTEIN COMPLEXED WITH A PEPTIDE REMARK 900 RELATED ID: 1HOY RELATED DB: PDB REMARK 900 1HOY IS THE NMR STRUCTURE OF THE COMPLEX BETWEEN A-BUNGAROTOXIN AND REMARK 900 A MIMOTOPE OF THE NICOTINIC ACETILCHOLINE RECEPTOR DBREF 1IK8 A 1 74 UNP P60615 NXL1A_BUNMU 1 74 SEQRES 1 A 74 ILE VAL CYS HIS THR THR ALA THR SER PRO ILE SER ALA SEQRES 2 A 74 VAL THR CYS PRO PRO GLY GLU ASN LEU CYS TYR ARG LYS SEQRES 3 A 74 MET TRP CYS ASP ALA PHE CYS SER SER ARG GLY LYS VAL SEQRES 4 A 74 VAL GLU LEU GLY CYS ALA ALA THR CYS PRO SER LYS LYS SEQRES 5 A 74 PRO TYR GLU GLU VAL THR CYS CYS SER THR ASP LYS CYS SEQRES 6 A 74 ASN PRO HIS PRO LYS GLN ARG PRO GLY SHEET 1 A 2 MET A 27 TRP A 28 0 SHEET 2 A 2 VAL A 39 VAL A 40 -1 O VAL A 39 N TRP A 28 SSBOND 1 CYS A 3 CYS A 23 1555 1555 2.09 SSBOND 2 CYS A 16 CYS A 44 1555 1555 2.57 SSBOND 3 CYS A 29 CYS A 33 1555 1555 1.64 SSBOND 4 CYS A 48 CYS A 59 1555 1555 1.55 SSBOND 5 CYS A 60 CYS A 65 1555 1555 2.16 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