HEADER HYDROLASE 04-DEC-03 1RQ9 TITLE CRYSTAL STRUCTURES OF A MULTIDRUG-RESISTANT HIV-1 PROTEASE REVEAL AN TITLE 2 EXPANDED ACTIVE SITE CAVITY COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 3.4.23.16; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HUMAN IMMUNODEFICIENCY VIRUS 1; SOURCE 3 ORGANISM_TAXID: 11676; SOURCE 4 GENE: HIV-1; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PJFV769NOHIS KEYWDS HIV PROTEASE, AIDS, POLYPROTEIN, HYDROLASE, ASPARTYL PROTEASE, MULTI- KEYWDS 2 DRUG RESISTANCE EXPDTA X-RAY DIFFRACTION AUTHOR B.C.LOGSDON,J.F.VICKREY,P.MARTIN,G.PROTEASA,J.I.KOEPKE,S.R.TERLECKY, AUTHOR 2 Z.WAWRZAK,M.A.WINTERS,T.C.MERIGAN,L.C.KOVARI REVDAT 5 03-APR-24 1RQ9 1 REMARK REVDAT 4 14-FEB-24 1RQ9 1 REMARK REVDAT 3 27-OCT-21 1RQ9 1 REMARK SEQADV REVDAT 2 24-FEB-09 1RQ9 1 VERSN REVDAT 1 07-DEC-04 1RQ9 0 JRNL AUTH B.C.LOGSDON,J.F.VICKREY,P.MARTIN,G.PROTEASA,J.I.KOEPKE, JRNL AUTH 2 S.R.TERLECKY,Z.WAWRZAK,M.A.WINTERS,T.C.MERIGAN,L.C.KOVARI JRNL TITL CRYSTAL STRUCTURES OF A MULTIDRUG-RESISTANT HUMAN JRNL TITL 2 IMMUNODEFICIENCY VIRUS TYPE 1 PROTEASE REVEAL AN EXPANDED JRNL TITL 3 ACTIVE-SITE CAVITY. JRNL REF J.VIROL. V. 78 3123 2004 JRNL REFN ISSN 0022-538X JRNL PMID 14990731 JRNL DOI 10.1128/JVI.78.6.3123-3132.2004 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.F.VICKREY,B.C.LOGSDON,G.PROTEASA,S.PALMER,M.A.WINTERS, REMARK 1 AUTH 2 T.C.MERIGAN,L.C.KOVARI REMARK 1 TITL HIV-1 PROTEASE VARIANTS FROM 100-FOLD DRUG RESISTANT REMARK 1 TITL 2 CLINICAL ISOLATES: EXPRESSION, PURIFICATION, AND REMARK 1 TITL 3 CRYSTALLIZATION. REMARK 1 REF PROTEIN EXPR.PURIF. V. 28 165 2003 REMARK 1 REFN ISSN 1046-5928 REMARK 1 DOI 10.1016/S1046-5928(02)00650-2 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 23.36 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 363103.290 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 6422 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) : 0.254 REMARK 3 FREE R VALUE : 0.335 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.800 REMARK 3 FREE R VALUE TEST SET COUNT : 321 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.010 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) : 2.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2016 REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.90 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 : 1510 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 40 REMARK 3 SOLVENT ATOMS : 41 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 25.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 40.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 8.28000 REMARK 3 B22 (A**2) : 8.28000 REMARK 3 B33 (A**2) : -16.56000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.42 REMARK 3 ESD FROM SIGMAA (A) : 0.60 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) : 0.54 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.65 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 26.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.890 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) : 0.680 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.200 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.610 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.960 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.42 REMARK 3 BSOL : 54.38 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 : DMP450.PAR REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : DMP450.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1RQ9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-DEC-03. REMARK 100 THE DEPOSITION ID IS D_1000020947. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 13-MAR-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU FR-D REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : OSMIC MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU) REMARK 200 DATA SCALING SOFTWARE : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7333 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 23.360 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.6 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.17000 REMARK 200 R SYM (I) : 0.17000 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: CCP4 REMARK 200 STARTING MODEL: HIGHER RESOLUTION STRUCTURE OF THE SAME PROTEIN REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MES, SODIUM CHLORIDE, PH 6.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 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,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 51.47850 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 25.73925 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 77.21775 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: 3830 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10380 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.0 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 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 PRO A 9 72.00 -66.89 REMARK 500 GLU A 35 125.94 -8.00 REMARK 500 PRO A 39 -156.10 -73.62 REMARK 500 ILE A 47 -158.50 -132.12 REMARK 500 PRO B 9 67.86 -58.71 REMARK 500 LYS B 14 74.87 -168.13 REMARK 500 GLU B 35 125.05 10.90 REMARK 500 ASN B 37 88.37 -56.27 REMARK 500 GLN B 61 64.43 27.82 REMARK 500 CYS B 67 67.57 38.12 REMARK 500 PRO B 81 -15.14 -35.56 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 DMQ B 111 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1RPI RELATED DB: PDB REMARK 900 RELATED ID: 1RV7 RELATED DB: PDB DBREF 1RQ9 A 1 99 GB 6179841 AAF05674 1 99 DBREF 1RQ9 B 1 99 GB 6179841 AAF05674 1 99 SEQADV 1RQ9 ASN A 25 GB 6179841 ASP 25 ENGINEERED MUTATION SEQADV 1RQ9 VAL A 36 GB 6179841 MET 36 ENGINEERED MUTATION SEQADV 1RQ9 VAL A 84 GB 6179841 ILE 84 ENGINEERED MUTATION SEQADV 1RQ9 ASN B 25 GB 6179841 ASP 25 ENGINEERED MUTATION SEQADV 1RQ9 VAL B 36 GB 6179841 MET 36 ENGINEERED MUTATION SEQADV 1RQ9 VAL B 84 GB 6179841 ILE 84 ENGINEERED MUTATION SEQRES 1 A 99 PRO GLN ILE THR LEU TRP GLN ARG PRO ILE VAL THR ILE SEQRES 2 A 99 LYS ILE GLY GLY GLN LEU LYS GLU ALA LEU LEU ASN THR SEQRES 3 A 99 GLY ALA ASP ASP THR VAL LEU GLU GLU VAL ASN LEU PRO SEQRES 4 A 99 GLY ARG TRP LYS PRO LYS LEU ILE GLY GLY ILE GLY GLY SEQRES 5 A 99 PHE VAL LYS VAL ARG GLN TYR ASP GLN VAL PRO ILE GLU SEQRES 6 A 99 ILE CYS GLY HIS LYS VAL ILE GLY THR VAL LEU VAL GLY SEQRES 7 A 99 PRO THR PRO ALA ASN VAL ILE GLY ARG ASN LEU MET THR SEQRES 8 A 99 GLN ILE GLY CYS THR LEU ASN PHE SEQRES 1 B 99 PRO GLN ILE THR LEU TRP GLN ARG PRO ILE VAL THR ILE SEQRES 2 B 99 LYS ILE GLY GLY GLN LEU LYS GLU ALA LEU LEU ASN THR SEQRES 3 B 99 GLY ALA ASP ASP THR VAL LEU GLU GLU VAL ASN LEU PRO SEQRES 4 B 99 GLY ARG TRP LYS PRO LYS LEU ILE GLY GLY ILE GLY GLY SEQRES 5 B 99 PHE VAL LYS VAL ARG GLN TYR ASP GLN VAL PRO ILE GLU SEQRES 6 B 99 ILE CYS GLY HIS LYS VAL ILE GLY THR VAL LEU VAL GLY SEQRES 7 B 99 PRO THR PRO ALA ASN VAL ILE GLY ARG ASN LEU MET THR SEQRES 8 B 99 GLN ILE GLY CYS THR LEU ASN PHE HET DMQ B 111 40 HETNAM DMQ [4-R-(-4-ALPHA,5-ALPHA,6-BETA,7-BETA)]-HEXAHYDRO-5,6- HETNAM 2 DMQ BIS(HYDROXY)-1,3-BIS([(3-AMINO)PHENYL]METHYL)-4,7- HETNAM 3 DMQ BIS(PHENYLMETHYL)-2H-1,3-DIAZEPINONE HETSYN DMQ DMP450(INHIBITOR OF DUPONT MERCK) FORMUL 3 DMQ C33 H36 N4 O3 FORMUL 4 HOH *41(H2 O) HELIX 1 1 GLY A 86 GLY A 94 1 9 HELIX 2 2 GLY B 86 GLN B 92 1 7 SHEET 1 A 4 GLN A 2 ILE A 3 0 SHEET 2 A 4 THR B 96 ASN B 98 -1 O LEU B 97 N ILE A 3 SHEET 3 A 4 THR A 96 ASN A 98 -1 N ASN A 98 O THR B 96 SHEET 4 A 4 GLN B 2 ILE B 3 -1 O ILE B 3 N LEU A 97 SHEET 1 B 5 HIS A 69 ILE A 72 0 SHEET 2 B 5 PRO A 63 ILE A 66 -1 N ILE A 66 O HIS A 69 SHEET 3 B 5 ILE A 10 ILE A 15 -1 N LYS A 14 O GLU A 65 SHEET 4 B 5 GLN A 18 LEU A 24 -1 O GLN A 18 N ILE A 15 SHEET 5 B 5 VAL A 84 ILE A 85 1 O ILE A 85 N LEU A 23 SHEET 1 C 2 VAL A 32 GLU A 34 0 SHEET 2 C 2 LEU A 76 GLY A 78 1 O LEU A 76 N LEU A 33 SHEET 1 D 2 LYS A 43 GLY A 49 0 SHEET 2 D 2 GLY A 52 GLN A 58 -1 O GLN A 58 N LYS A 43 SHEET 1 E 3 ILE B 10 ILE B 13 0 SHEET 2 E 3 LYS B 20 LEU B 24 -1 O ALA B 22 N VAL B 11 SHEET 3 E 3 VAL B 84 ILE B 85 1 O ILE B 85 N LEU B 23 SHEET 1 F 4 VAL B 32 LEU B 33 0 SHEET 2 F 4 HIS B 69 VAL B 77 1 O LEU B 76 N LEU B 33 SHEET 3 F 4 GLY B 52 ILE B 66 -1 N ARG B 57 O VAL B 77 SHEET 4 F 4 PRO B 44 GLY B 49 -1 N ILE B 47 O VAL B 54 SITE 1 AC1 8 ASN A 25 GLY A 27 ASN B 25 GLY B 27 SITE 2 AC1 8 ALA B 28 ASP B 29 ASP B 30 GLY B 48 CRYST1 45.097 45.097 102.957 90.00 90.00 90.00 P 41 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 0.022174 0.000000 0.000000 0.00000 SCALE2 0.000000 0.022174 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009713 0.00000