HEADER OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR 23-DEC-14 4XE6 TITLE STAPHYLOCOCCUS AUREUS DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND TITLE 2 6-ETHYL-5-[(3R)-3-[3-METHOXY-5-(PYRIDIN-4-YL)PHENYL]BUT-1-YN-1- TITLE 3 YL]PYRIMIDINE-2,4-DIAMINE (UCP1061) COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROFOLATE REDUCTASE; COMPND 3 CHAIN: X; COMPND 4 SYNONYM: DHFR; COMPND 5 EC: 1.5.1.3; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280; SOURCE 4 ATCC: 29213; SOURCE 5 GENE: FOLA; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VARIANT: DE3; SOURCE 10 EXPRESSION_SYSTEM_ATCC_NUMBER: 29213; SOURCE 11 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 12 EXPRESSION_SYSTEM_PLASMID: PET-41A(+) KEYWDS DIHYDROFOLATE REDUCTASE, OXIDOREDUCTASE, METHICILLIN-RESISTANT KEYWDS 2 STAPHYLOCOCCUS AUREUS, ANTIFOLATES, ENANTIOPURE INHIBITORS, KEYWDS 3 OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR S.M.REEVE,A.C.ANDERSON REVDAT 4 27-SEP-23 4XE6 1 REMARK REVDAT 3 11-DEC-19 4XE6 1 REMARK REVDAT 2 20-SEP-17 4XE6 1 REMARK REVDAT 1 20-JAN-16 4XE6 0 JRNL AUTH S.KESHIPEDDY,S.M.REEVE,A.C.ANDERSON,D.L.WRIGHT JRNL TITL STEREO-SELECTIVELY INDUCED COFACTOR SWITCHING PROVIDES JRNL TITL 2 INSIGHT INTO COFACTOR SITE PLASTICITY AS A POSSIBLE JRNL TITL 3 MECHANISM OF ANTIFOLATE RESISTANCE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 2.69 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.9_1692) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.69 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.88 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 5929 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.165 REMARK 3 R VALUE (WORKING SET) : 0.158 REMARK 3 FREE R VALUE : 0.232 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.020 REMARK 3 FREE R VALUE TEST SET COUNT : 594 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 31.8770 - 4.2712 1.00 1420 158 0.1470 0.2118 REMARK 3 2 4.2712 - 3.3914 1.00 1330 149 0.1393 0.2169 REMARK 3 3 3.3914 - 2.9631 1.00 1298 143 0.1835 0.2558 REMARK 3 4 2.9631 - 2.6920 1.00 1287 144 0.1942 0.2842 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.270 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.260 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 36.19 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.008 1400 REMARK 3 ANGLE : 1.408 1910 REMARK 3 CHIRALITY : 0.087 209 REMARK 3 PLANARITY : 0.005 236 REMARK 3 DIHEDRAL : 20.762 513 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4XE6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-JAN-15. REMARK 100 THE DEPOSITION ID IS D_1000205524. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 24-APR-14 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.25 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X25 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 : SI(111) DOUBLE MONOCHROMATOR 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 : 5929 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.690 REMARK 200 RESOLUTION RANGE LOW (A) : 31.877 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 18.20 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.16000 REMARK 200 FOR THE DATA SET : 38.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.69 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.74 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.6 REMARK 200 DATA REDUNDANCY IN SHELL : 17.40 REMARK 200 R MERGE FOR SHELL (I) : 0.42800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 9.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: 3F0Q REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.44 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1M MES PH 6.25, 0.1M SODIUM ACETATE, REMARK 280 13% PEG 10,000, 0.5% GAMMA-BUTRYLACTONE, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2 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 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 REMARK 290 7555 Y,X,-Z+1/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+2/3 REMARK 290 10555 -Y,-X,-Z+5/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+1/6 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 36.03933 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 72.07867 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 54.05900 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 90.09833 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 18.01967 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 36.03933 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 72.07867 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 90.09833 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 54.05900 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 18.01967 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1420 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 8250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: X 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 X 0 REMARK 465 LEU X 158 REMARK 465 GLU X 159 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 HIS X 38 -150.82 -126.28 REMARK 500 ASP X 142 -155.14 -158.44 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 06U X 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ACT X 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue NDP X 203 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4TU5 RELATED DB: PDB REMARK 900 RELATED ID: 4XEC RELATED DB: PDB DBREF 4XE6 X 0 156 UNP P0A017 DYR_STAAU 1 157 SEQADV 4XE6 LYS X 157 UNP P0A017 EXPRESSION TAG SEQADV 4XE6 LEU X 158 UNP P0A017 EXPRESSION TAG SEQADV 4XE6 GLU X 159 UNP P0A017 EXPRESSION TAG SEQRES 1 X 160 MET THR LEU SER ILE LEU VAL ALA HIS ASP LEU GLN ARG SEQRES 2 X 160 VAL ILE GLY PHE GLU ASN GLN LEU PRO TRP HIS LEU PRO SEQRES 3 X 160 ASN ASP LEU LYS HIS VAL LYS LYS LEU SER THR GLY HIS SEQRES 4 X 160 THR LEU VAL MET GLY ARG LYS THR PHE GLU SER ILE GLY SEQRES 5 X 160 LYS PRO LEU PRO ASN ARG ARG ASN VAL VAL LEU THR SER SEQRES 6 X 160 ASP THR SER PHE ASN VAL GLU GLY VAL ASP VAL ILE HIS SEQRES 7 X 160 SER ILE GLU ASP ILE TYR GLN LEU PRO GLY HIS VAL PHE SEQRES 8 X 160 ILE PHE GLY GLY GLN THR LEU PHE GLU GLU MET ILE ASP SEQRES 9 X 160 LYS VAL ASP ASP MET TYR ILE THR VAL ILE GLU GLY LYS SEQRES 10 X 160 PHE ARG GLY ASP THR PHE PHE PRO PRO TYR THR PHE GLU SEQRES 11 X 160 ASP TRP GLU VAL ALA SER SER VAL GLU GLY LYS LEU ASP SEQRES 12 X 160 GLU LYS ASN THR ILE PRO HIS THR PHE LEU HIS LEU ILE SEQRES 13 X 160 ARG LYS LEU GLU HET 06U X 201 28 HET ACT X 202 4 HET NDP X 203 48 HETNAM 06U 6-ETHYL-5-{(3R)-3-[3-METHOXY-5-(PYRIDIN-4-YL) HETNAM 2 06U PHENYL]BUT-1-YN-1-YL}PYRIMIDINE-2,4-DIAMINE HETNAM ACT ACETATE ION HETNAM NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE HETNAM 2 NDP PHOSPHATE FORMUL 2 06U C22 H23 N5 O FORMUL 3 ACT C2 H3 O2 1- FORMUL 4 NDP C21 H30 N7 O17 P3 FORMUL 5 HOH *38(H2 O) HELIX 1 AA1 LEU X 24 THR X 36 1 13 HELIX 2 AA2 ARG X 44 GLY X 51 1 8 HELIX 3 AA3 SER X 78 LEU X 85 5 8 HELIX 4 AA4 GLY X 94 ILE X 102 1 9 HELIX 5 AA5 THR X 127 GLU X 129 5 3 SHEET 1 AA1 8 VAL X 73 ILE X 76 0 SHEET 2 AA1 8 ARG X 58 LEU X 62 1 N ASN X 59 O ASP X 74 SHEET 3 AA1 8 THR X 39 GLY X 43 1 N LEU X 40 O VAL X 60 SHEET 4 AA1 8 VAL X 89 GLY X 93 1 O PHE X 90 N THR X 39 SHEET 5 AA1 8 LEU X 2 HIS X 8 1 N SER X 3 O ILE X 91 SHEET 6 AA1 8 ASP X 107 ILE X 113 1 O ILE X 113 N HIS X 8 SHEET 7 AA1 8 HIS X 149 ARG X 156 -1 O LEU X 152 N ILE X 110 SHEET 8 AA1 8 TRP X 131 GLU X 138 -1 N GLU X 132 O ILE X 155 SHEET 1 AA2 2 VAL X 13 GLY X 15 0 SHEET 2 AA2 2 THR X 121 PHE X 122 -1 O THR X 121 N ILE X 14 CISPEP 1 GLY X 93 GLY X 94 0 6.04 SITE 1 AC1 15 LEU X 5 VAL X 6 ALA X 7 GLN X 19 SITE 2 AC1 15 LEU X 20 ASP X 27 LEU X 28 VAL X 31 SITE 3 AC1 15 THR X 46 SER X 49 ILE X 50 LEU X 54 SITE 4 AC1 15 PHE X 92 THR X 111 HOH X 316 SITE 1 AC2 2 ARG X 12 TYR X 126 SITE 1 AC3 23 ILE X 14 ASN X 18 GLN X 19 GLY X 43 SITE 2 AC3 23 ARG X 44 LYS X 45 THR X 46 LEU X 62 SITE 3 AC3 23 THR X 63 SER X 64 SER X 67 HIS X 77 SITE 4 AC3 23 ILE X 79 GLY X 93 GLY X 94 GLN X 95 SITE 5 AC3 23 THR X 96 LEU X 97 GLU X 100 THR X 121 SITE 6 AC3 23 HOH X 304 HOH X 323 HOH X 337 CRYST1 78.902 78.902 108.118 90.00 90.00 120.00 P 61 2 2 12 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 0.012674 0.007317 0.000000 0.00000 SCALE2 0.000000 0.014635 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009249 0.00000