HEADER BIOTIN-BINDING PROTEIN 23-JUL-11 3T2W TITLE CRYSTAL STRUCTURE OF SHWANAVIDIN (F43A) - BIOTIN COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: AVIDIN/STREPTAVIDIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SHEWANELLA DENITRIFICANS; SOURCE 3 ORGANISM_TAXID: 318161; SOURCE 4 STRAIN: OS217 / ATCC BAA-1090 / DSM 15013; SOURCE 5 GENE: SDEN_0912; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS AVIDIN, STREPTAVIDIN, BIOTIN, HIGH AFFINITY SYSTEMS, SHWANAVIDIN, KEYWDS 2 BIOTIN-BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR O.LIVNAH,A.MEIR REVDAT 5 30-OCT-24 3T2W 1 REMARK SEQADV REVDAT 4 12-OCT-16 3T2W 1 TITLE REVDAT 3 13-JUN-12 3T2W 1 JRNL REVDAT 2 25-APR-12 3T2W 1 JRNL REVDAT 1 11-APR-12 3T2W 0 JRNL AUTH A.MEIR,E.A.BAYER,O.LIVNAH JRNL TITL STRUCTURAL ADAPTATION OF A THERMOSTABLE BIOTIN-BINDING JRNL TITL 2 PROTEIN IN A PSYCHROPHILIC ENVIRONMENT. JRNL REF J.BIOL.CHEM. V. 287 17951 2012 JRNL REFN ISSN 0021-9258 JRNL PMID 22493427 JRNL DOI 10.1074/JBC.M112.357186 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 3 NUMBER OF REFLECTIONS : 20652 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 + TEST SET) : 0.178 REMARK 3 R VALUE (WORKING SET) : 0.177 REMARK 3 FREE R VALUE : 0.208 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1111 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.54 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1500 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.49 REMARK 3 BIN R VALUE (WORKING SET) : 0.2370 REMARK 3 BIN FREE R VALUE SET COUNT : 69 REMARK 3 BIN FREE R VALUE : 0.2780 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 867 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 16 REMARK 3 SOLVENT ATOMS : 109 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.66 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.63000 REMARK 3 B22 (A**2) : -0.63000 REMARK 3 B33 (A**2) : 1.26000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.070 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.049 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.897 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.970 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.966 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 925 ; 0.014 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1265 ; 1.589 ; 1.930 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 119 ; 6.520 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 39 ;30.370 ;25.641 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 139 ;10.652 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ; 1.514 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 142 ; 0.107 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 700 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 406 ; 0.204 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 621 ; 0.303 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 85 ; 0.114 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 45 ; 0.273 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 21 ; 0.166 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 590 ; 1.387 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 922 ; 2.007 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 402 ; 3.073 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 340 ; 3.486 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): 992 ; 2.511 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 109 ; 5.927 ; 3.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 901 ; 5.357 ; 3.000 REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 3T2W COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-JUL-11. REMARK 100 THE DEPOSITION ID IS D_1000066968. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-JUN-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.3 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID29 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9736 REMARK 200 MONOCHROMATOR : OPTICAL HUTCH REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21787 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.54 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.5M AMMONIUM SULFATE, 50MM TRIS, PH REMARK 280 8.3, MICROBATCH, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 32.91500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 31.60600 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 31.60600 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 49.37250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 31.60600 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 31.60600 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 16.45750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 31.60600 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 31.60600 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 49.37250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 31.60600 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 31.60600 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 16.45750 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 32.91500 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3460 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10220 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 KCAL/MOL 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 350 BIOMT1 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 124 LIES ON A SPECIAL POSITION. 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 465 ALA A 2 REMARK 465 MET A 3 REMARK 465 THR A 87 REMARK 465 GLY A 88 REMARK 465 SER A 121 REMARK 465 ALA A 122 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTN A 600 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3SZH RELATED DB: PDB REMARK 900 RELATED ID: 3SZI RELATED DB: PDB REMARK 900 RELATED ID: 3SZJ RELATED DB: PDB REMARK 900 RELATED ID: 3T2X RELATED DB: PDB DBREF 3T2W A 3 122 UNP Q12QS6 Q12QS6_SHEDO 43 162 SEQADV 3T2W MET A 1 UNP Q12QS6 EXPRESSION TAG SEQADV 3T2W ALA A 2 UNP Q12QS6 EXPRESSION TAG SEQADV 3T2W ALA A 43 UNP Q12QS6 PHE 83 ENGINEERED MUTATION SEQRES 1 A 122 MET ALA MET ALA GLN GLU LEU THR ALA MET SER ALA TRP SEQRES 2 A 122 VAL ASN GLN ASP GLY SER THR LEU TYR ILE ASN SER ILE SEQRES 3 A 122 ASN ALA GLN GLY GLU LEU THR GLY SER TYR ILE ASN ARG SEQRES 4 A 122 ALA ALA GLY ALA ALA CYS GLN ASN SER PRO TYR PRO VAL SEQRES 5 A 122 ASN GLY TRP VAL PHE GLY THR ALA ILE SER PHE SER THR SEQRES 6 A 122 LYS TRP LEU ASN SER VAL GLU SER CYS ASN SER ILE THR SEQRES 7 A 122 SER TRP SER GLY PHE TYR ILE ASN THR GLY GLY GLN GLY SEQRES 8 A 122 LYS ILE SER THR LEU TRP GLN LEU VAL VAL ASN GLY SER SEQRES 9 A 122 SER SER PRO SER GLN ILE LEU LYS GLY GLN ASP VAL PHE SEQRES 10 A 122 SER GLN THR SER ALA HET BTN A 600 16 HETNAM BTN BIOTIN FORMUL 2 BTN C10 H16 N2 O3 S FORMUL 3 HOH *109(H2 O) HELIX 1 1 SER A 106 ILE A 110 5 5 SHEET 1 A 9 SER A 11 ASN A 15 0 SHEET 2 A 9 THR A 20 ILE A 26 -1 O ILE A 23 N SER A 11 SHEET 3 A 9 GLU A 31 ILE A 37 -1 O SER A 35 N TYR A 22 SHEET 4 A 9 TYR A 50 PHE A 57 -1 O VAL A 52 N GLY A 34 SHEET 5 A 9 ALA A 60 LEU A 68 -1 O ALA A 60 N PHE A 57 SHEET 6 A 9 SER A 73 ILE A 85 -1 O TRP A 80 N PHE A 63 SHEET 7 A 9 LYS A 92 VAL A 101 -1 O LEU A 96 N SER A 81 SHEET 8 A 9 LEU A 111 GLN A 119 -1 O PHE A 117 N ILE A 93 SHEET 9 A 9 SER A 11 ASN A 15 -1 N VAL A 14 O SER A 118 SSBOND 1 CYS A 45 CYS A 74 1555 1555 2.06 SITE 1 AC1 15 ASN A 15 SER A 19 TYR A 36 ASN A 38 SITE 2 AC1 15 ARG A 39 ALA A 44 TRP A 67 CYS A 74 SITE 3 AC1 15 SER A 76 THR A 78 TRP A 97 ASP A 115 SITE 4 AC1 15 HOH A 181 HOH A 184 HOH A 190 CRYST1 63.212 63.212 65.830 90.00 90.00 90.00 P 43 21 2 8 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 0.015820 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015820 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015191 0.00000