HEADER RIBONUCLEASE 28-JUN-00 1E44 TITLE RIBONUCLEASE DOMAIN OF COLICIN E3 IN COMPLEX WITH ITS TITLE 2 IMMUNITY PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: COLICIN E3; COMPND 3 CHAIN: B; COMPND 4 FRAGMENT: RIBONUCLEASE DOMAIN RESIDUES 456-551; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: IMMUNITY PROTEIN; COMPND 8 CHAIN: A; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 7 EXPRESSION_SYSTEM_CELLULAR_LOCATION: CYTOPLASM; SOURCE 8 OTHER_DETAILS: CO-EXPRESSED WITH A HIS-TAGGED IMMUNITY SOURCE 9 PROTEIN; SOURCE 10 MOL_ID: 2; SOURCE 11 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 12 ORGANISM_TAXID: 562; SOURCE 13 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 14 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 15 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) KEYWDS RIBONUCLEASE, INHIBITION, PROTEIN-PROTEIN INTERACTIONS, KEYWDS 2 RIBOSOME INACTIVATION, TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR S.CARR,D.WALKER,R.JAMES,C.KLEANTHOUS,A.M.HEMMINGS REVDAT 2 24-FEB-09 1E44 1 VERSN REVDAT 1 28-JUN-01 1E44 0 JRNL AUTH S.CARR,D.WALKER,R.JAMES,C.KLEANTHOUS,A.M.HEMMINGS JRNL TITL INHIBITION OF A RIBOSOME INACTIVATING JRNL TITL 2 RIBONUCLEASE: THE CRYSTAL STRUCTURE OF THE JRNL TITL 3 CYTOTOXIC DOMAIN OF COLICIN E3 IN COMPLEX WITH ITS JRNL TITL 4 IMMUNITY PROTEIN JRNL REF STRUCTURE V. 8 949 2000 JRNL REFN ISSN 0969-2126 JRNL PMID 10986462 JRNL DOI 10.1016/S0969-2126(00)00186-6 REMARK 2 REMARK 2 RESOLUTION. 2.4 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.5 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.4 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 100000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 97.5 REMARK 3 NUMBER OF REFLECTIONS : 14892 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.192 REMARK 3 FREE R VALUE : 0.228 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.0 REMARK 3 FREE R VALUE TEST SET COUNT : 726 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1458 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 171 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.021 REMARK 3 BOND ANGLES (DEGREES) : 1.86 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1E44 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 28-JUN-00. REMARK 100 THE PDBE ID CODE IS EBI-5087. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 5.60 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM14 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9, 0.97, 0.979 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14892 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.7 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03900 REMARK 200 FOR THE DATA SET : 37.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.45 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.5 REMARK 200 DATA REDUNDANCY IN SHELL : 2.70 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.23700 REMARK 200 FOR SHELL : 2.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 72 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M NA CITRATE PH 5.6, REMARK 280 20% ISOPROPANOL, 10% PEG 4000 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 25.39000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 50.78000 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 50.78000 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 25.39000 REMARK 290 REMARK 290 REMARK: NULL 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 GENERATING THE BIOMOLECULE 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PQS REMARK 350 TOTAL BURIED SURFACE AREA: 2980 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10960 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -13.6 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A -1 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLY A 1 N GLY A 1 CA 0.113 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 ASP B 55 CB - CG - OD1 ANGL. DEV. = 5.7 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 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 LYS B 30 -7.79 -142.16 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO B 401 DBREF 1E44 A -1 84 UNP P02984 IMM3_ECOLI 1 85 DBREF 1E44 B 1 96 UNP P00646 CEA3_ECOLI 456 551 SEQRES 1 A 85 MET GLY LEU LYS LEU ASP LEU THR TRP PHE ASP LYS SER SEQRES 2 A 85 THR GLU ASP PHE LYS GLY GLU GLU TYR SER LYS ASP PHE SEQRES 3 A 85 GLY ASP ASP GLY SER VAL MET GLU SER LEU GLY VAL PRO SEQRES 4 A 85 PHE LYS ASP ASN VAL ASN ASN GLY CYS PHE ASP VAL ILE SEQRES 5 A 85 ALA GLU TRP VAL PRO LEU LEU GLN PRO TYR PHE ASN HIS SEQRES 6 A 85 GLN ILE ASP ILE SER ASP ASN GLU TYR PHE VAL SER PHE SEQRES 7 A 85 ASP TYR ARG ASP GLY ASP TRP SEQRES 1 B 96 GLY PHE LYS ASP TYR GLY HIS ASP TYR HIS PRO ALA PRO SEQRES 2 B 96 LYS THR GLU ASN ILE LYS GLY LEU GLY ASP LEU LYS PRO SEQRES 3 B 96 GLY ILE PRO LYS THR PRO LYS GLN ASN GLY GLY GLY LYS SEQRES 4 B 96 ARG LYS ARG TRP THR GLY ASP LYS GLY ARG LYS ILE TYR SEQRES 5 B 96 GLU TRP ASP SER GLN HIS GLY GLU LEU GLU GLY TYR ARG SEQRES 6 B 96 ALA SER ASP GLY GLN HIS LEU GLY SER PHE ASP PRO LYS SEQRES 7 B 96 THR GLY ASN GLN LEU LYS GLY PRO ASP PRO LYS ARG ASN SEQRES 8 B 96 ILE LYS LYS TYR LEU HET EDO B 401 4 HETNAM EDO 1,2-ETHANEDIOL HETSYN EDO ETHYLENE GLYCOL FORMUL 3 EDO C2 H6 O2 FORMUL 4 HOH *171(H2 O1) HELIX 1 1 GLY A 29 GLY A 36 1 8 HELIX 2 2 GLU A 53 GLN A 59 1 7 HELIX 3 3 PRO A 60 PHE A 62 5 3 HELIX 4 4 GLY B 1 HIS B 7 1 7 HELIX 5 5 LYS B 14 ILE B 18 5 5 HELIX 6 6 ILE B 92 LEU B 96 5 5 SHEET 1 A 4 CYS A 47 ASP A 49 0 SHEET 2 A 4 ASN A 71 TYR A 79 -1 N VAL A 75 O PHE A 48 SHEET 3 A 4 LEU A 2 ASP A 10 -1 N PHE A 9 O GLU A 72 SHEET 4 A 4 PHE A 16 TYR A 21 -1 N GLU A 20 O LEU A 6 SHEET 1 B 4 LEU B 24 PRO B 26 0 SHEET 2 B 4 ARG B 42 GLY B 45 -1 N THR B 44 O LYS B 25 SHEET 3 B 4 LYS B 50 ASP B 55 -1 N TYR B 52 O TRP B 43 SHEET 4 B 4 GLU B 60 ARG B 65 -1 N TYR B 64 O ILE B 51 SITE 1 AC1 7 ASP A 5 GLU A 19 THR B 15 TRP B 43 SITE 2 AC1 7 HOH B2038 HOH B2054 HOH B2087 CRYST1 93.700 93.700 76.170 90.00 90.00 120.00 P 31 2 1 6 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 0.010672 0.006162 0.000000 0.00000 SCALE2 0.000000 0.012323 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013128 0.00000