1DFZ - Header Asymmetric Unit

HEADER TOXIN 22-NOV-99 1DFZ

TITLE NMR STRUCTURE OF CONTRYPHAN-SM CYCLIC PEPTIDE (MINOR FORM- TITLE 2 TRANS)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CONTRYPHAN-SM; COMPND 3 CHAIN: A

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CONUS STERCUSMUSCARUM; SOURCE 3 ORGANISM_TAXID: 89452

KEYWDS CYCLIC PEPTIDE, DISULFIDE BRIDGE, D-TRYPTOPHAN, CIS-TRANS KEYWDS 2 ISOMERISM, CONTRYPHAN, TOXIN

EXPDTA SOLUTION NMR

NUMMDL 20

AUTHOR P.K.PALLAGHY,W.HE,E.C.JIMENEZ,B.M.OLIVERA,R.S.NORTON

REVDAT 2 24-FEB-09 1DFZ 1 VERSN REVDAT 1 01-MAY-02 1DFZ 0

JRNL AUTH P.K.PALLAGHY,W.HE,E.C.JIMENEZ,B.M.OLIVERA, JRNL AUTH 2 R.S.NORTON JRNL TITL STRUCTURES OF THE CONTRYPHAN FAMILY OF CYCLIC JRNL TITL 2 PEPTIDES. ROLE OF ELECTROSTATIC INTERACTIONS IN JRNL TITL 3 CIS-TRANS ISOMERISM. JRNL REF BIOCHEMISTRY V. 39 12845 2000 JRNL REFN ISSN 0006-2960 JRNL PMID 11041849 JRNL DOI 10.1021/BI0010930

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: EM IN CHARMM-19 FORCE-FIELD WITH REMARK 3 EXPLICIT BOX OF H2O TREATED WITH PBC

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-NOV-99. REMARK 100 THE RCSB ID CODE IS RCSB010051.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 278 REMARK 210 PH : 2.9 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 5.0 MM REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY, DQF-COSY, E-COSY, REMARK 210 TOCSY 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 1.3, XEASY 1.3.13 REMARK 210 METHOD USED : SIMULATED ANNEALING & ENERGY REMARK 210 MINIMIZATION REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 200 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL

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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1DFY RELATED DB: PDB REMARK 900 STRUCTURE OF ALTERNATIVE FORM OF CONTRYPHAN-SM (MAJOR FORM REMARK 900 - CIS) REMARK 900 RELATED ID: 1DG0 RELATED DB: PDB REMARK 900 STRUCTURE OF DES[GLY1]-CONTRYPHAN-R REMARK 900 RELATED ID: 1QFB RELATED DB: PDB REMARK 900 STRUCTURE OF CONTRYPHAN-R

SEQRES 1 A 8 GLY CYS HYP DTR GLN PRO TRP CY3

MODRES 1DFZ HYP A 3 PRO 4-HYDROXYPROLINE MODRES 1DFZ CY3 A 8 CYS 2-AMINO-3-MERCAPTO-PROPIONAMIDE

HET HYP A 3 15 HET DTR A 4 24 HET CY3 A 8 13

HETNAM HYP 4-HYDROXYPROLINE HETNAM DTR D-TRYPTOPHAN HETNAM CY3 2-AMINO-3-MERCAPTO-PROPIONAMIDE

HETSYN HYP HYDROXYPROLINE

FORMUL 1 HYP C5 H9 N O3 FORMUL 1 DTR C11 H12 N2 O2 FORMUL 1 CY3 C3 H8 N2 O S

LINK C CYS A 2 N HYP A 3 1555 1555 1.31 LINK SG CYS A 2 SG CY3 A 8 1555 1555 2.02 LINK C HYP A 3 N DTR A 4 1555 1555 1.31 LINK C DTR A 4 N GLN A 5 1555 1555 1.30 LINK C TRP A 7 N CY3 A 8 1555 1555 1.30

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