1K43 - Header Asymmetric Unit

HEADER DE NOVO PROTEIN 05-OCT-01 1K43

TITLE 10 STRUCTURE ENSEMBLE OF THE 14-RESIDUE PEPTIDE RG-KWTY-NG- TITLE 2 ITYE-GR (MBH12)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: MBH12; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED SOURCE 4 USING FMOC CHEMISTRY.

KEYWDS BETA-HAIRPIN, DE NOVO PROTEIN

EXPDTA SOLUTION NMR

NUMMDL 10

AUTHOR M.T.PASTOR,M.LOPEZ DE LA PAZ,E.LACROIX,L.SERRANO,E.PEREZ- AUTHOR 2 PAYA

REVDAT 4 24-FEB-09 1K43 1 VERSN REVDAT 3 01-APR-03 1K43 1 JRNL REVDAT 2 13-FEB-02 1K43 1 JRNL REMARK REVDAT 1 17-OCT-01 1K43 0

JRNL AUTH M.T.PASTOR,M.LOPEZ DE LA PAZ,E.LACROIX,L.SERRANO, JRNL AUTH 2 E.PEREZ-PAYA JRNL TITL COMBINATORIAL APPROACHES: A NEW TOOL TO SEARCH FOR JRNL TITL 2 HIGHLY STRUCTURED BETA-HAIRPIN PEPTIDES. JRNL REF PROC.NATL.ACAD.SCI.USA V. 99 614 2002 JRNL REFN ISSN 0027-8424 JRNL PMID 11782528 JRNL DOI 10.1073/PNAS.012583999

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : GROMOS 96 REMARK 3 AUTHORS : VAN GUNSTEREN REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON A TOTAL REMARK 3 OF 70 RESTRAINTS, 60 ARE NOE-DERIVED DISTANCE CONSTRAINTS AND REMARK 3 10 DIHEDRAL ANGLE RESTRAINTS. THE PAIRWISE RMSD FOR RESIDUES REMARK 3 3-12 WAS 0.38 +/- 0.21 A FOR THE BACKBONE AND 1.36 +/- 0.35 A REMARK 3 FOR ALL HEAVY ATOMS. THE ESTIMATED BETA-HAIRPIN POPULATION OF REMARK 3 THIS PEPTIDE IS 66 +/- 4%. THE FIRST AND LAST TWO RESIDUES REMARK 3 (RG) ARE DISORDERED, BECAUSE THEY WERE ADDED JUST TO AVOID REMARK 3 AGGREGATION. THE SIDE CHAINS OF TRP4, TYR6, ILE9 AND TYR11 ARE REMARK 3 INTERACTING IN ONE SIDE OF THE BETA HAIRPIN, FORMING A REMARK 3 HYDROPHOBIC CLUSTER. ASN7 AT POSITION L1 OF THE BETA-TURN IS REMARK 3 DIRECTED OUTWARDS FROM THE BETA-HAIRPIN, AS EXPECTED FOR A REMARK 3 TYPE I' BETA-TURN.

REMARK 4 REMARK 4 1K43 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-OCT-01. REMARK 100 THE RCSB ID CODE IS RCSB014535.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 283 REMARK 210 PH : 5.0 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1 MM PEPTIDE MBH12; 1 MM REMARK 210 PEPTIDE MBH12; 1 MM PEPTIDE REMARK 210 MBH12 REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D ROESY, 2D NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR 2.6, DYANA 1.5 REMARK 210 METHOD USED : SIMULATED ANNEALING COMBINED REMARK 210 WITH TORSION ANGLE DYNAMICS REMARK 210 (DYANA) REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 10 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 6 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 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 TYR A 6 139.68 -172.03 REMARK 500 2 LYS A 3 136.62 -179.96 REMARK 500 2 GLU A 12 69.21 -102.80 REMARK 500 3 LYS A 3 137.05 -174.58 REMARK 500 3 GLU A 12 78.90 -117.42 REMARK 500 8 LYS A 3 132.65 -178.73 REMARK 500 8 GLU A 12 65.67 -68.13 REMARK 500 REMARK 500 REMARK: NULL

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1J4M RELATED DB: PDB REMARK 900 MINIMIZED AVERAGE STRUCTURE

DBREF 1K43 A 1 14 PDB 1K43 1K43 1 14

SEQRES 1 A 14 ARG GLY LYS TRP THR TYR ASN GLY ILE THR TYR GLU GLY SEQRES 2 A 14 ARG

SHEET 1 A 2 TRP A 4 TYR A 6 0 SHEET 2 A 2 ILE A 9 TYR A 11 -1 O TYR A 11 N TRP A 4

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