HEADER HYDROLASE 18-NOV-05 2F32 TITLE XRAY CRYSTAL STRUCTURE OF LYSOZYME MUTANT L20/R63A LIGANDED TO TITLE 2 ETHYLGUANIDINIUM COMPND MOL_ID: 1; COMPND 2 MOLECULE: LYSOZYME; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: LYSIS PROTEIN, MURAMIDASE, ENDOLYSIN; COMPND 5 EC: 3.2.1.17; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE T4; SOURCE 3 ORGANISM_TAXID: 10665; SOURCE 4 GENE: E; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: RR1; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PHS 1405 KEYWDS MOLECULAR SWITCH, T4 LYSOZYME, NANO-BITECHNOLOGY, PROTEIN KEYWDS 2 ENGINEERING, PROTEIN DESIGN, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR M.S.YOUSEF,N.BISCHOFF,C.M.DYER,W.A.BAASE,B.W.MATTHEWS REVDAT 5 23-AUG-23 2F32 1 REMARK REVDAT 4 20-OCT-21 2F32 1 REMARK SEQADV REVDAT 3 18-OCT-17 2F32 1 REMARK REVDAT 2 24-FEB-09 2F32 1 VERSN REVDAT 1 25-APR-06 2F32 0 JRNL AUTH M.S.YOUSEF,N.BISCHOFF,C.M.DYER,W.A.BAASE,B.W.MATTHEWS JRNL TITL GUANIDINIUM DERIVATIVES BIND PREFERENTIALLY AND TRIGGER JRNL TITL 2 LONG-DISTANCE CONFORMATIONAL CHANGES IN AN ENGINEERED T4 JRNL TITL 3 LYSOZYME. JRNL REF PROTEIN SCI. V. 15 853 2006 JRNL REFN ISSN 0961-8368 JRNL PMID 16600969 JRNL DOI 10.1110/PS.052020606 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.S.YOUSEF,W.A.BAASE,B.W.MATTHEWS REMARK 1 TITL USE OF SEQUENCE DUPLICATION TO ENGINEER A LIGAND-TRIGGERED, REMARK 1 TITL 2 LONG-DISTANCE MOLECULAR SWITCH IN T4 LYSOZYME. REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 101 11583 2004 REMARK 1 REFN ISSN 0027-8424 REMARK 1 PMID 15286283 REMARK 1 DOI 10.1073/PNAS.0404482101 REMARK 1 REFERENCE 2 REMARK 1 AUTH M.SAGERMANN,W.A.BAASE,B.W.MATTHEWS REMARK 1 TITL STRUCTURAL CHARACTERIZATION OF AN ENGINEERED TANDEM REPEAT REMARK 1 TITL 2 CONTRASTS THE IMPORTANCE OF CONTEXT AND SEQUENCE IN PROTEIN REMARK 1 TITL 3 FOLDING. REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 96 6078 1999 REMARK 1 REFN ISSN 0027-8424 REMARK 1 PMID 10339544 REMARK 1 DOI 10.1073/PNAS.96.11.6078 REMARK 1 REFERENCE 3 REMARK 1 AUTH M.SAGERMANN,L.GAY,B.W.MATTHEWS REMARK 1 TITL LONG-DISTANCE CONFORMATIONAL CHANGES IN A PROTEIN ENGINEERED REMARK 1 TITL 2 BY MODULATED SEQUENCE DUPLICATION REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 100 9191 2003 REMARK 1 REFN ISSN 0027-8424 REMARK 1 PMID 12869697 REMARK 1 DOI 10.1073/PNAS.1633549100 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.38 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 569234.740 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.1 REMARK 3 NUMBER OF REFLECTIONS : 18757 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.200 REMARK 3 FREE R VALUE : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 904 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.91 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 90.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2797 REMARK 3 BIN R VALUE (WORKING SET) : 0.2650 REMARK 3 BIN FREE R VALUE : 0.3330 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 125 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.030 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1382 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 205 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.10 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.15000 REMARK 3 B22 (A**2) : 1.15000 REMARK 3 B33 (A**2) : -2.30000 REMARK 3 B12 (A**2) : 1.36000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : 0.14 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.25 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.16 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 19.50 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.840 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 3.340 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 3.880 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 4.970 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 6.630 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.35 REMARK 3 BSOL : 45.42 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : EGD.PARAM REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : BME.PARAM REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : EGD.TOP REMARK 3 TOPOLOGY FILE 4 : BME.TOP REMARK 3 TOPOLOGY FILE 5 : ION.TOP REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2F32 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-NOV-05. REMARK 100 THE DEPOSITION ID IS D_1000035391. 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 : 6.50 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.2.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.1 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 DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK DENZO REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19758 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 28.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.36000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: 1T8A REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.8 M MIXED POTASSIUM AND SODIUM REMARK 280 PHOSPHATE. 0.2 M ETHYL GUANIDINIUM CHLORIDE, PH 6.50, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 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+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 64.08067 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 32.04033 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 32.04033 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 64.08067 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 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 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 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 ILE A 29 77.78 -109.66 REMARK 500 LEU A 33 -64.84 -106.22 REMARK 500 PRO A 37 -165.10 -77.75 REMARK 500 ASN A 40 -63.49 -92.21 REMARK 500 ALA A 41 116.50 -6.56 REMARK 500 ALA A 42 150.47 -10.47 REMARK 500 ASN A 174 11.67 85.55 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BME A 600 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EGD A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2F2Q RELATED DB: PDB DBREF 2F32 A 1 175 UNP P00720 LYS_BPT4 1 164 SEQADV 2F32 ILE A 39 UNP P00720 LEU 39 ENGINEERED MUTATION SEQADV 2F32 ASN A 40 UNP P00720 INSERTION SEQADV 2F32 ALA A 41 UNP P00720 INSERTION SEQADV 2F32 ALA A 42 UNP P00720 INSERTION SEQADV 2F32 LYS A 43 UNP P00720 INSERTION SEQADV 2F32 SER A 44 UNP P00720 INSERTION SEQADV 2F32 GLU A 45 UNP P00720 INSERTION SEQADV 2F32 ASP A 47 UNP P00720 INSERTION SEQADV 2F32 LYS A 48 UNP P00720 INSERTION SEQADV 2F32 ALA A 49 UNP P00720 INSERTION SEQADV 2F32 ILE A 50 UNP P00720 INSERTION SEQADV 2F32 ALA A 63 UNP P00720 ARG 52 ENGINEERED MUTATION SEQADV 2F32 THR A 65 UNP P00720 CYS 54 ENGINEERED MUTATION SEQADV 2F32 ALA A 108 UNP P00720 CYS 97 ENGINEERED MUTATION SEQRES 1 A 175 MET ASN ILE PHE GLU MET LEU ARG ILE ASP GLU GLY LEU SEQRES 2 A 175 ARG LEU LYS ILE TYR LYS ASP THR GLU GLY TYR TYR THR SEQRES 3 A 175 ILE GLY ILE GLY HIS LEU LEU THR LYS SER PRO SER ILE SEQRES 4 A 175 ASN ALA ALA LYS SER GLU LEU ASP LYS ALA ILE ASN ALA SEQRES 5 A 175 ALA LYS SER GLU LEU ASP LYS ALA ILE GLY ALA ASN THR SEQRES 6 A 175 ASN GLY VAL ILE THR LYS ASP GLU ALA GLU LYS LEU PHE SEQRES 7 A 175 ASN GLN ASP VAL ASP ALA ALA VAL ARG GLY ILE LEU ARG SEQRES 8 A 175 ASN ALA LYS LEU LYS PRO VAL TYR ASP SER LEU ASP ALA SEQRES 9 A 175 VAL ARG ARG ALA ALA LEU ILE ASN MET VAL PHE GLN MET SEQRES 10 A 175 GLY GLU THR GLY VAL ALA GLY PHE THR ASN SER LEU ARG SEQRES 11 A 175 MET LEU GLN GLN LYS ARG TRP ASP GLU ALA ALA VAL ASN SEQRES 12 A 175 LEU ALA LYS SER ARG TRP TYR ASN GLN THR PRO ASN ARG SEQRES 13 A 175 ALA LYS ARG VAL ILE THR THR PHE ARG THR GLY THR TRP SEQRES 14 A 175 ASP ALA TYR LYS ASN LEU HET BME A 600 4 HET EGD A 300 12 HETNAM BME BETA-MERCAPTOETHANOL HETNAM EGD N-ETHYLGUANIDINE FORMUL 2 BME C2 H6 O S FORMUL 3 EGD C3 H9 N3 FORMUL 4 HOH *205(H2 O) HELIX 1 1 ASN A 2 GLY A 12 1 11 HELIX 2 2 ALA A 42 GLY A 62 1 21 HELIX 3 3 THR A 70 ASN A 92 1 23 HELIX 4 4 LYS A 94 LEU A 102 1 9 HELIX 5 5 ASP A 103 GLY A 118 1 16 HELIX 6 6 GLY A 118 GLY A 124 1 7 HELIX 7 7 PHE A 125 GLN A 134 1 10 HELIX 8 8 ARG A 136 ALA A 145 1 10 HELIX 9 9 SER A 147 THR A 153 1 7 HELIX 10 10 THR A 153 GLY A 167 1 15 HELIX 11 11 TRP A 169 LYS A 173 5 5 SHEET 1 A 3 ARG A 14 LYS A 19 0 SHEET 2 A 3 TYR A 24 GLY A 28 -1 O THR A 26 N TYR A 18 SHEET 3 A 3 HIS A 31 LYS A 35 -1 O LEU A 33 N TYR A 25 SITE 1 AC1 2 ILE A 3 HOH A 729 SITE 1 AC2 5 ALA A 63 ASN A 64 VAL A 68 GLU A 73 SITE 2 AC2 5 HOH A 657 CRYST1 60.879 60.879 96.121 90.00 90.00 120.00 P 32 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 0.016426 0.009484 0.000000 0.00000 SCALE2 0.000000 0.018967 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010404 0.00000