HEADER TOXIN 07-DEC-00 1HN7 OBSLTE 27-JUN-01 1HN7 1JBD TITLE NMR STRUCTURE OF THE COMPLEX BETWEEN A-BUNGAROTOXIN AND A TITLE 2 MIMOTOPE OF THE NICOTINIC ACETILCHOLINE RECEPTOR CAVEAT 1HN7 CHIRALITY ERRORS AT CENTER CA OF CHAIN A GLY 19, 37, 43, 74. COMPND MOL_ID: 1; COMPND 2 MOLECULE: LONG NEUROTOXIN 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ALPHA-BUNGAROTOXIN; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: MIMOTOPE OF THE NICOTINIC ACETILCHOLINE RECEPTOR; COMPND 7 CHAIN: B; COMPND 8 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BUNGARUS MULTICINCTUS; SOURCE 3 ORGANISM_COMMON: MANY-BANDED KRAIT; SOURCE 4 SECRETION: VENOM; SOURCE 5 MOL_ID: 2; SOURCE 6 SYNTHETIC: YES; SOURCE 7 OTHER_DETAILS: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED KEYWDS ALPHA-BUNGAROTOXIN, PROTEIN-PEPTIDE COMPLEX, ACCHOR KEYWDS 2 MIMOTOPE, TOXIN, BETA STRANDS EXPDTA NMR, MINIMIZED AVERAGE STRUCTURE AUTHOR M.SCARSELLI,O.SPIGA,A.CIUTTI,L.BRACCI,B.LELLI,D.CALAMANDREI, AUTHOR 2 A.BERNINI,D.DI MARO,N.NICCOLAI,P.NERI REVDAT 2 27-JUN-01 1HN7 1 OBSLTE REVDAT 1 20-DEC-00 1HN7 0 JRNL AUTH M.SCARSELLI,O.SPIGA,A.CIUTTI,L.BRACCI,B.LELLI, JRNL AUTH 2 D.CALAMANDREI,A.BERNINI,D.DI MARO,N.NICCOLAI,P.NERI JRNL TITL NMR STRUCTURE OF THE COMPLEX BETWEEN JRNL TITL 2 A-BUNGAROTOXIN AND A MIMOTOPE OF THE NICOTINIC JRNL TITL 3 ACETILCHOLINE RECEPTOR JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : AMBER 4.1 REMARK 3 AUTHORS : PEARLMAN, D.A. ET AL. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON A TOTAL REMARK 3 OF 1607 NOE-DERIVED DISTANCE COSTRAINTS REMARK 4 REMARK 4 1HN7 COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-DEC-2000. REMARK 100 THE RCSB ID CODE IS RCSB012460. 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 : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.5MM A-BUNGAROTOXIN; 0.5MM; REMARK 210 90% H2O, 10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ REMARK 210 SPECTROMETER MODEL : DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR 2.1, NMRVIEW 4.1.1, REMARK 210 DYANA 1.5 REMARK 210 METHOD USED : MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : NULL REMARK 210 CONFORMERS, NUMBER SUBMITTED : NULL REMARK 210 CONFORMERS, SELECTION CRITERIA : NULL REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 20 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: 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 REMARK 500 O GLU B 9 CD PRO B 13 1.35 REMARK 500 O GLU B 9 CG PRO B 13 1.55 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 PRO A 10 ILE A 11 149.78 REMARK 500 ASN A 66 PRO A 67 -147.54 DBREF 1HN7 A 1 74 UNP P01378 NXL1_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 SEQRES 1 B 14 HIS ARG TYR TYR GLU SER SER LEU GLU PRO TRP TYR PRO SEQRES 2 B 14 ASP SHEET 1 A 2 CYS A 3 THR A 5 0 SHEET 2 A 2 SER A 12 VAL A 14 -1 O SER A 12 N THR A 5 SHEET 1 B 3 VAL A 57 CYS A 60 0 SHEET 2 B 3 LEU A 22 TRP A 28 -1 N CYS A 23 O CYS A 60 SHEET 3 B 3 VAL A 39 VAL A 40 -1 O VAL A 39 N TRP A 28 SHEET 1 C 3 VAL A 57 CYS A 60 0 SHEET 2 C 3 LEU A 22 TRP A 28 -1 N CYS A 23 O CYS A 60 SHEET 3 C 3 GLY A 43 ALA A 45 -1 O GLY A 43 N TYR A 24 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