PDB Short entry for 1QNT HEADER DNA REPAIR 20-OCT-99 1QNT TITLE X-RAY STRUCTURE OF HUMAN O6ALKYLGUANINE-DNA TITLE 2 ALKYLTRANSFERASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: METHYLATED-DNA--PROTEIN-CYSTEINE COMPND 3 METHYLTRANSFERASE; COMPND 4 CHAIN: A; COMPND 5 SYNONYM: 6-O-METHYLGUANINE-DNA METHYLTRANSFERASE; COMPND 6 EC: 2.1.1.63; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JM109; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PQE30 KEYWDS DNA REPAIR, ALKYLTRANSFERASE, METHYLTRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.E.A.WIBLEY,P.C.E.MOODY REVDAT 3 24-FEB-09 1QNT 1 VERSN REVDAT 2 02-JAN-00 1QNT 1 JRNL REVDAT 1 16-DEC-99 1QNT 0 JRNL AUTH J.E.A.WIBLEY,A.E.PEGG,P.C.E.MOODY JRNL TITL CRYSTAL STRUCTURE OF THE HUMAN O(6)-ALKYLGUANINE- JRNL TITL 2 DNA ALKYLTRANSFERASE. JRNL REF NUCLEIC ACIDS RES. V. 28 393 2000 JRNL REFN ISSN 0305-1048 JRNL PMID 10606635 JRNL DOI 10.1093/NAR/28.2.393 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.H.MOORE,J.M.GULBIS,E.J.DODSON,B.DEMPLE, REMARK 1 AUTH 2 P.C.E.MOODY REMARK 1 TITL CRYSTAL STRUCTURE OF A SUICIDAL DNA REPAIR REMARK 1 TITL 2 PROTEIN: THE ADA O6-METHYLGUANINE-DNA REMARK 1 TITL 3 METHYLTRANSFERASE FROM E. COLI REMARK 1 REF EMBO J. V. 13 1495 1994 REMARK 1 REFN ISSN 0261-4189 REMARK 1 PMID 8156986 REMARK 1 REMARK 1 REFERENCE 2 REMARK 1 AUTH J.E.A.WIBLEY J,H.MCKIE,K.EMBREY,D.S.MARKS, REMARK 1 AUTH 2 K.T.DOUGLAS,M.H.MOORE,P.C.E.MOODY REMARK 1 TITL A HOMOLOGY MODEL OF THE 3-DIMENSIONAL STRUCTURE OF REMARK 1 TITL 2 HUMAN O-6-ALKLGUANINE-DNA ALKYLTRANSFERASE BASED REMARK 1 TITL 3 ON THE CRYSTAL STRUCTURE OF THE C-TERMINAL DOMAIN REMARK 1 TITL 4 OF THE ADA PROTEIN FROM ESCHERICHIA COLI REMARK 1 REF ANTI-CANCER DRUG DES. V. 10 75 1995 REMARK 1 REFN ISSN 0266-9536 REMARK 1 PMID 7695814 REMARK 2 REMARK 2 RESOLUTION. 1.9 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) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 23.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.0 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.7 REMARK 3 NUMBER OF REFLECTIONS : 32604 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) : 0.198 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.9 REMARK 3 FREE R VALUE TEST SET COUNT : 1600 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.02 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 95.9 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 5000 REMARK 3 BIN R VALUE (WORKING SET) : 0.220 REMARK 3 BIN FREE R VALUE : 0.252 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.8 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 250 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.016 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1264 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 174 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 16.3 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.4 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.55 REMARK 3 B22 (A**2) : -0.55 REMARK 3 B33 (A**2) : 1.10 REMARK 3 B12 (A**2) : 0.71 REMARK 3 B13 (A**2) : 0.00 REMARK 3 B23 (A**2) : 0.00 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.12 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.17 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.137 REMARK 3 BOND ANGLES (DEGREES) : 2.2 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.4 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.46 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) : 0.56 ; 1.50 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.00 ; 2.00 REMARK 3 SIDE-CHAIN BOND (A**2) : 0.57 ; 2.00 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 0.94 ; 2.50 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.427549 REMARK 3 BSOL : 61.6075 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 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QNT COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 21-OCT-99. REMARK 100 THE PDBE ID CODE IS EBI-4305. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-OCT-99 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SRS REMARK 200 BEAMLINE : PX9.6 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.87 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 17402 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 23.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 200 DATA REDUNDANCY : 12.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 27.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.97 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.19300 REMARK 200 <I/SIGMA(I)> FOR SHELL : 10.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: INITIAL STRUCTURE FROM MAD DATA COLLECTED TO 2.3A AT REMARK 200 ESRF BM14 FROM SEMET DERIVATIVE USING DATA FROM 3 DIFFERENT REMARK 200 WAVELENGTHS REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): NULL REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.75M (NH4)2SO4, PH 7.5 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 24.19267 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 48.38533 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 48.38533 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 24.19267 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 300 REMARK 300 DETAILS:BIOLOGICAL_UNIT: MONOMER RECOMBINANT HUMAN REMARK 300 PROTEINEXPRESSED IN ESCHERICHIA COLI 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: MONOMERIC REMARK 350 SOFTWARE USED: PQS 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 400 REMARK 400 COMPOUND REMARK 400 FRAGMENT EXPRESSED BY MUTATION OF POSITION 177 INTO A REMARK 400 STOP CODON 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 ASP A 2 REMARK 465 LYS A 3 REMARK 465 ASP A 4 REMARK 465 CYS A 5 REMARK 465 GLY A 37 REMARK 465 THR A 38 REMARK 465 SER A 39 REMARK 465 ALA A 40 REMARK 465 ALA A 41 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 ILE A 143 N - CA - C ANGL. DEV. = -16.3 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 GLN A 72 52.50 -144.42 REMARK 500 ALA A 126 36.08 -97.23 REMARK 500 ILE A 141 -58.41 72.97 REMARK 500 PRO A 144 63.55 -65.99 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SFE RELATED DB: PDB REMARK 900 ADA O6-METHYLGUANINE-DNA METHYLTRANSFERASE FROM ESCHERICHIA COLI DBREF 1QNT A 1 176 UNP P16455 MGMT_HUMAN 1 176 SEQRES 1 A 176 MET ASP LYS ASP CYS GLU MET LYS ARG THR THR LEU ASP SEQRES 2 A 176 SER PRO LEU GLY LYS LEU GLU LEU SER GLY CYS GLU GLN SEQRES 3 A 176 GLY LEU HIS GLU ILE LYS LEU LEU GLY LYS GLY THR SER SEQRES 4 A 176 ALA ALA ASP ALA VAL GLU VAL PRO ALA PRO ALA ALA VAL SEQRES 5 A 176 LEU GLY GLY PRO GLU PRO LEU MET GLN CYS THR ALA TRP SEQRES 6 A 176 LEU ASN ALA TYR PHE HIS GLN PRO GLU ALA ILE GLU GLU SEQRES 7 A 176 PHE PRO VAL PRO ALA LEU HIS HIS PRO VAL PHE GLN GLN SEQRES 8 A 176 GLU SER PHE THR ARG GLN VAL LEU TRP LYS LEU LEU LYS SEQRES 9 A 176 VAL VAL LYS PHE GLY GLU VAL ILE SER TYR GLN GLN LEU SEQRES 10 A 176 ALA ALA LEU ALA GLY ASN PRO LYS ALA ALA ARG ALA VAL SEQRES 11 A 176 GLY GLY ALA MET ARG GLY ASN PRO VAL PRO ILE LEU ILE SEQRES 12 A 176 PRO CYS HIS ARG VAL VAL CYS SER SER GLY ALA VAL GLY SEQRES 13 A 176 ASN TYR SER GLY GLY LEU ALA VAL LYS GLU TRP LEU LEU SEQRES 14 A 176 ALA HIS GLU GLY HIS ARG LEU FORMUL 2 HOH *174(H2 O1) HELIX 1 1 PRO A 56 GLN A 72 1 17 HELIX 2 2 PRO A 73 PHE A 79 5 7 HELIX 3 3 HIS A 86 GLN A 91 1 6 HELIX 4 4 SER A 93 VAL A 106 1 14 HELIX 5 5 TYR A 114 ALA A 121 1 8 HELIX 6 6 ALA A 126 ARG A 135 1 10 HELIX 7 7 PRO A 144 HIS A 146 5 3 HELIX 8 8 GLY A 161 GLU A 172 1 12 SHEET 1 A 3 LYS A 8 LEU A 12 0 SHEET 2 A 3 LEU A 19 CYS A 24 -1 N GLY A 23 O LYS A 8 SHEET 3 A 3 GLY A 27 LEU A 33 -1 N LYS A 32 O GLU A 20 CRYST1 71.877 71.877 72.578 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 0.013913 0.008032 0.000000 0.00000 SCALE2 0.000000 0.016065 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013778 0.00000