2IT7 - Header Asymmetric Unit

HEADER PLANT PROTEIN 19-OCT-06 2IT7

TITLE SOLUTION STRUCTURE OF THE SQUASH TRYPSIN INHIBITOR EETI-II

COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRYPSIN INHIBITOR 2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TRYPSIN INHIBITOR II, EETI-II; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN ECBALLIUM SOURCE 4 ELATERIUM

KEYWDS PLANT PROTEIN, KNOTTIN, CYSTINE-KNOT, 3-10 HELIX, TRIPLE- KEYWDS 2 STRANDED ANTI-PARALLEL BETA-SHEET

EXPDTA SOLUTION NMR

NUMMDL 30

AUTHOR L.CHICHE,A.HEITZ,D.LE-NGUYEN

REVDAT 2 24-FEB-09 2IT7 1 VERSN REVDAT 1 02-OCT-07 2IT7 0

JRNL AUTH A.HEITZ,O.AVRUTINA,D.LE-NGUYEN,U.DIEDERICHSEN, JRNL AUTH 2 J.F.HERNANDEZ,J.GRACY,H.KOLMAR,L.CHICHE JRNL TITL KNOTTIN CYCLIZATION: STRUCTURE AND STABILITY OF JRNL TITL 2 CYCLIC AND LINEAR SQUASH INHIBITORS DO NOT DIFFER JRNL TITL 3 SIGNIFICANTLY JRNL REF TO BE PUBLISHED JRNL REFN

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.HEITZ,L.CHICHE,D.LE-NGUYEN,B.CASTRO REMARK 1 TITL 1H 2D NMR AND DISTANCE GEOMETRY STUDY OF THE REMARK 1 TITL 2 FOLDING OF ECBALLIUM ELATERIUM TRYPSIN INHIBITOR, REMARK 1 TITL 3 A MEMBER OF THE SQUASH INHIBITORS FAMILY REMARK 1 REF BIOCHEMISTRY V. 28 2392 1989 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH L.CHICHE,C.GABORIAUD,A.HEITZ,J.P.MORNON,B.CASTRO, REMARK 1 AUTH 2 P.A.KOLLMAN REMARK 1 TITL USE OF RESTRAINED MOLECULAR DYNAMICS IN WATER TO REMARK 1 TITL 2 DETERMINE THREE-DIMENSIONAL PROTEIN STRUCTURE: REMARK 1 TITL 3 PREDICTION OF THE THREE-DIMENSIONAL STRUCTURE OF REMARK 1 TITL 4 ECBALLIUM ELATERIUM TRYPSIN INHIBITOR II REMARK 1 REF PROTEINS: V. 6 405 1989 REMARK 1 REF 2 STRUCT.,FUNCT.,GENET. REMARK 1 REFN ISSN 0887-3585

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : AMBER 8 REMARK 3 AUTHORS : CASE, D.A. ET AL. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 2IT7 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-OCT-06. REMARK 100 THE RCSB ID CODE IS RCSB039985.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 285; 300 REMARK 210 PH : 2.7; 2.7 REMARK 210 IONIC STRENGTH : NULL; NULL REMARK 210 PRESSURE : 1 ATM; 1 ATM REMARK 210 SAMPLE CONTENTS : 4MM EETI-II, 90% H2O, 10% REMARK 210 D2O; 4MM EETI-II, D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY, 2D TOCSY, 2D 1H-13C REMARK 210 HSQC 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 3.1, CYANA 2.1 REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS, REMARK 210 SIMULATED ANNEALING, REMARK 210 RESTRAINED MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 30 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 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 3 ARG A 4 44.79 -81.95 REMARK 500 3 LEU A 6 66.08 -118.85 REMARK 500 16 ARG A 4 38.40 -78.92 REMARK 500 18 ARG A 4 40.20 -79.10 REMARK 500 19 ARG A 4 34.16 -78.52 REMARK 500 20 ARG A 4 37.97 -79.53 REMARK 500 22 ARG A 4 33.46 -78.11 REMARK 500 24 ARG A 4 32.80 -80.80 REMARK 500 26 ARG A 4 20.72 -77.35 REMARK 500 29 ARG A 4 29.86 -77.50 REMARK 500 REMARK 500 REMARK: NULL

REMARK 700 REMARK 700 SHEET REMARK 700 REMARK 700 DETERMINATION METHOD: AUTHOR-DETERMINED

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1W7Z RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF ENGINEERED EETI-II. THE C-TERMINUS IS REMARK 900 EXTENDED (SER, PRO, ALA). REMARK 900 RELATED ID: 1H9H RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF ENGINEERED EETI-II COMPLEXED WITH REMARK 900 TRYPSIN. THE C-TERMINUS IS EXTENDED (SER, PRO, 6HIS). REMARK 900 RELATED ID: 1H9I RELATED DB: PDB REMARK 900 CYSTAL STRUCTURE OF AN ENGINEERED EETI-II MUTANT COMPLEXED REMARK 900 WITH TRYPSIN. THE C-TERMINUS IS EXTENDED (SER, PRO, 6HIS). REMARK 900 RELATED ID: 2LET RELATED DB: PDB REMARK 900 SOLUTION STRUCTURE OF AN EETI-II MUTANT REMARK 900 RELATED ID: 2C4B RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF AN ENGINEERED EETI-II MUTANT FUSED TO REMARK 900 BARNASE REMARK 900 RELATED ID: 2IT8 RELATED DB: PDB

DBREF 2IT7 A 1 28 UNP P12071 ITR2_ECBEL 1 28

SEQRES 1 A 28 GLY CYS PRO ARG ILE LEU MET ARG CYS LYS GLN ASP SER SEQRES 2 A 28 ASP CYS LEU ALA GLY CYS VAL CYS GLY PRO ASN GLY PHE SEQRES 3 A 28 CYS GLY

HELIX 1 1 GLN A 11 CYS A 15 5 5

SHEET 1 B 1 MET A 7 CYS A 9 0 SHEET 2 B 1 GLY A 25 GLY A 28 -1 N CYS A 27 O MET A 7 SHEET 3 B 1 VAL A 20 GLY A 22 -1 O VAL A 20 N GLY A 28

SSBOND 1 CYS A 2 CYS A 19 1555 1555 2.04 SSBOND 2 CYS A 9 CYS A 21 1555 1555 2.04 SSBOND 3 CYS A 15 CYS A 27 1555 1555 2.04

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