HEADER OXIDOREDUCTASE 17-JUN-00 1F5V TITLE STRUCTURE AND SITE-DIRECTED MUTAGENESIS OF A FLAVOPROTEIN FROM TITLE 2 ESCHERICHIA COLI THAT REDUCES NITROCOMPOUNDS. ALTERATION OF PYRIDINE TITLE 3 NUCLEOTIDE BINDING BY A SINGLE AMINO ACID SUBSTITUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: OXYGEN-INSENSITIVE NADPH NITROREDUCTASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 1.6.99.6; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PAJ102 KEYWDS NITROREDUCTASE, FLAVOPROTEIN, ESCHERICHIA COLI, OXIDOREDUCTION, KEYWDS 2 NITROCOMPOUND, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR T.KOBORI,H.SASAKI,W.C.LEE,S.ZENNO,K.SAIGO,M.E.P.MURPHY,M.TANOKURA REVDAT 4 07-FEB-24 1F5V 1 REMARK DBREF REVDAT 3 24-FEB-09 1F5V 1 VERSN REVDAT 2 01-APR-03 1F5V 1 JRNL REVDAT 1 14-FEB-01 1F5V 0 JRNL AUTH T.KOBORI,H.SASAKI,W.C.LEE,S.ZENNO,K.SAIGO,M.E.MURPHY, JRNL AUTH 2 M.TANOKURA JRNL TITL STRUCTURE AND SITE-DIRECTED MUTAGENESIS OF A FLAVOPROTEIN JRNL TITL 2 FROM ESCHERICHIA COLI THAT REDUCES NITROCOMPOUNDS: JRNL TITL 3 ALTERATION OF PYRIDINE NUCLEOTIDE BINDING BY A SINGLE AMINO JRNL TITL 4 ACID SUBSTITUTION. JRNL REF J.BIOL.CHEM. V. 276 2816 2001 JRNL REFN ISSN 0021-9258 JRNL PMID 11034992 JRNL DOI 10.1074/JBC.M002617200 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 7.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 42534 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.189 REMARK 3 FREE R VALUE : 0.206 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL 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 : 3774 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 62 REMARK 3 SOLVENT ATOMS : 349 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 1.690 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1F5V COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-JUN-00. REMARK 100 THE DEPOSITION ID IS D_1000011280. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL; 20-NOV-98 REMARK 200 TEMPERATURE (KELVIN) : 100.0; 100.0 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N; Y REMARK 200 RADIATION SOURCE : ROTATING ANODE; PHOTON FACTORY REMARK 200 BEAMLINE : NULL; BL-6A REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; NULL REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418; 1.00 REMARK 200 MONOCHROMATOR : NULL; NULL REMARK 200 OPTICS : NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE; IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC; FUJI REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.97 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.05 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000, MES, SODIUM HYDROXIDE, PEG REMARK 280 400, DIOXANE, PH 6.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE REMARK 280 281.0K. PEG 6000, MES, SODIUM HYDROXIDE, PEG 400, DIOXANE, PH REMARK 280 6.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 281.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z 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 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: THE BIOLOGICAL ASSEMBLY IS A DIMER CONSTRUCTED FROM CHAIN A REMARK 300 A SYMMETRY PARTNER GENERATED BY THE TWO-FOLD. 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: 11560 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17960 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -84.0 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 GLN A 44 67.31 38.49 REMARK 500 CYS A 45 45.34 -105.11 REMARK 500 ASN A 179 -41.11 65.24 REMARK 500 ASN A 207 97.83 -47.98 REMARK 500 GLU A 223 64.71 -114.79 REMARK 500 GLN B 44 65.77 39.28 REMARK 500 CYS B 45 44.71 -104.38 REMARK 500 ASN B 179 -40.16 66.73 REMARK 500 SER B 205 -64.63 -108.29 REMARK 500 GLU B 223 68.64 -112.64 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 FMN A 360 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FMN B 361 DBREF 1F5V A 1 240 UNP P17117 NFSA_ECOLI 1 240 DBREF 1F5V B 1 240 UNP P17117 NFSA_ECOLI 1 240 SEQRES 1 A 240 MET THR PRO THR ILE GLU LEU ILE CYS GLY HIS ARG SER SEQRES 2 A 240 ILE ARG HIS PHE THR ASP GLU PRO ILE SER GLU ALA GLN SEQRES 3 A 240 ARG GLU ALA ILE ILE ASN SER ALA ARG ALA THR SER SER SEQRES 4 A 240 SER SER PHE LEU GLN CYS SER SER ILE ILE ARG ILE THR SEQRES 5 A 240 ASP LYS ALA LEU ARG GLU GLU LEU VAL THR LEU THR GLY SEQRES 6 A 240 GLY GLN LYS HIS VAL ALA GLN ALA ALA GLU PHE TRP VAL SEQRES 7 A 240 PHE CYS ALA ASP PHE ASN ARG HIS LEU GLN ILE CYS PRO SEQRES 8 A 240 ASP ALA GLN LEU GLY LEU ALA GLU GLN LEU LEU LEU GLY SEQRES 9 A 240 VAL VAL ASP THR ALA MET MET ALA GLN ASN ALA LEU ILE SEQRES 10 A 240 ALA ALA GLU SER LEU GLY LEU GLY GLY VAL TYR ILE GLY SEQRES 11 A 240 GLY LEU ARG ASN ASN ILE GLU ALA VAL THR LYS LEU LEU SEQRES 12 A 240 LYS LEU PRO GLN HIS VAL LEU PRO LEU PHE GLY LEU CYS SEQRES 13 A 240 LEU GLY TRP PRO ALA ASP ASN PRO ASP LEU LYS PRO ARG SEQRES 14 A 240 LEU PRO ALA SER ILE LEU VAL HIS GLU ASN SER TYR GLN SEQRES 15 A 240 PRO LEU ASP LYS GLY ALA LEU ALA GLN TYR ASP GLU GLN SEQRES 16 A 240 LEU ALA GLU TYR TYR LEU THR ARG GLY SER ASN ASN ARG SEQRES 17 A 240 ARG ASP THR TRP SER ASP HIS ILE ARG ARG THR ILE ILE SEQRES 18 A 240 LYS GLU SER ARG PRO PHE ILE LEU ASP TYR LEU HIS LYS SEQRES 19 A 240 GLN GLY TRP ALA THR ARG SEQRES 1 B 240 MET THR PRO THR ILE GLU LEU ILE CYS GLY HIS ARG SER SEQRES 2 B 240 ILE ARG HIS PHE THR ASP GLU PRO ILE SER GLU ALA GLN SEQRES 3 B 240 ARG GLU ALA ILE ILE ASN SER ALA ARG ALA THR SER SER SEQRES 4 B 240 SER SER PHE LEU GLN CYS SER SER ILE ILE ARG ILE THR SEQRES 5 B 240 ASP LYS ALA LEU ARG GLU GLU LEU VAL THR LEU THR GLY SEQRES 6 B 240 GLY GLN LYS HIS VAL ALA GLN ALA ALA GLU PHE TRP VAL SEQRES 7 B 240 PHE CYS ALA ASP PHE ASN ARG HIS LEU GLN ILE CYS PRO SEQRES 8 B 240 ASP ALA GLN LEU GLY LEU ALA GLU GLN LEU LEU LEU GLY SEQRES 9 B 240 VAL VAL ASP THR ALA MET MET ALA GLN ASN ALA LEU ILE SEQRES 10 B 240 ALA ALA GLU SER LEU GLY LEU GLY GLY VAL TYR ILE GLY SEQRES 11 B 240 GLY LEU ARG ASN ASN ILE GLU ALA VAL THR LYS LEU LEU SEQRES 12 B 240 LYS LEU PRO GLN HIS VAL LEU PRO LEU PHE GLY LEU CYS SEQRES 13 B 240 LEU GLY TRP PRO ALA ASP ASN PRO ASP LEU LYS PRO ARG SEQRES 14 B 240 LEU PRO ALA SER ILE LEU VAL HIS GLU ASN SER TYR GLN SEQRES 15 B 240 PRO LEU ASP LYS GLY ALA LEU ALA GLN TYR ASP GLU GLN SEQRES 16 B 240 LEU ALA GLU TYR TYR LEU THR ARG GLY SER ASN ASN ARG SEQRES 17 B 240 ARG ASP THR TRP SER ASP HIS ILE ARG ARG THR ILE ILE SEQRES 18 B 240 LYS GLU SER ARG PRO PHE ILE LEU ASP TYR LEU HIS LYS SEQRES 19 B 240 GLN GLY TRP ALA THR ARG HET FMN A 360 31 HET FMN B 361 31 HETNAM FMN FLAVIN MONONUCLEOTIDE HETSYN FMN RIBOFLAVIN MONOPHOSPHATE FORMUL 3 FMN 2(C17 H21 N4 O9 P) FORMUL 5 HOH *349(H2 O) HELIX 1 1 THR A 2 GLY A 10 1 9 HELIX 2 2 SER A 23 ALA A 36 1 14 HELIX 3 3 SER A 39 LEU A 43 5 5 HELIX 4 4 ASP A 53 THR A 64 1 12 HELIX 5 5 LYS A 68 ALA A 73 1 6 HELIX 6 6 PHE A 83 CYS A 90 1 8 HELIX 7 7 LEU A 97 LEU A 122 1 26 HELIX 8 8 GLY A 130 ASN A 134 5 5 HELIX 9 9 ASN A 135 LEU A 143 1 9 HELIX 10 10 PRO A 171 LEU A 175 1 5 HELIX 11 11 ASP A 185 THR A 202 1 18 HELIX 12 12 THR A 211 ILE A 221 1 11 HELIX 13 13 PHE A 227 GLN A 235 1 9 HELIX 14 14 THR B 2 GLY B 10 1 9 HELIX 15 15 SER B 23 ALA B 36 1 14 HELIX 16 16 SER B 39 LEU B 43 5 5 HELIX 17 17 ASP B 53 THR B 64 1 12 HELIX 18 18 LYS B 68 ALA B 73 1 6 HELIX 19 19 PHE B 83 CYS B 90 1 8 HELIX 20 20 LEU B 97 LEU B 122 1 26 HELIX 21 21 GLY B 130 ASN B 134 5 5 HELIX 22 22 ASN B 135 LEU B 143 1 9 HELIX 23 23 PRO B 171 LEU B 175 1 5 HELIX 24 24 ASP B 185 THR B 202 1 18 HELIX 25 25 THR B 211 ILE B 221 1 11 HELIX 26 26 PHE B 227 GLN B 235 1 9 SHEET 1 A 5 GLY A 125 ILE A 129 0 SHEET 2 A 5 VAL A 149 GLY A 158 -1 O GLY A 154 N ILE A 129 SHEET 3 A 5 GLU A 75 ASP A 82 -1 N GLU A 75 O LEU A 157 SHEET 4 A 5 SER A 46 ARG A 50 -1 O SER A 47 N CYS A 80 SHEET 5 A 5 VAL B 176 GLU B 178 1 O HIS B 177 N ARG A 50 SHEET 1 B 5 VAL A 176 GLU A 178 0 SHEET 2 B 5 SER B 46 ARG B 50 1 O ILE B 48 N HIS A 177 SHEET 3 B 5 GLU B 75 ASP B 82 -1 O VAL B 78 N ILE B 49 SHEET 4 B 5 VAL B 149 GLY B 158 -1 N LEU B 150 O ALA B 81 SHEET 5 B 5 GLY B 125 ILE B 129 -1 N GLY B 125 O GLY B 158 SITE 1 AC1 22 HIS A 11 SER A 13 ARG A 15 GLN A 67 SITE 2 AC1 22 VAL A 127 TYR A 128 ILE A 129 GLY A 130 SITE 3 AC1 22 GLY A 131 LYS A 167 ARG A 169 HOH A 367 SITE 4 AC1 22 HOH A 380 HOH A 403 HOH A 475 SER B 38 SITE 5 AC1 22 SER B 39 SER B 40 PHE B 42 VAL B 106 SITE 6 AC1 22 ASP B 107 HOH B 504 SITE 1 AC2 23 SER A 38 SER A 39 SER A 40 PHE A 42 SITE 2 AC2 23 VAL A 106 ASP A 107 HIS B 11 ARG B 12 SITE 3 AC2 23 SER B 13 ARG B 15 GLN B 67 VAL B 127 SITE 4 AC2 23 TYR B 128 ILE B 129 GLY B 130 GLY B 131 SITE 5 AC2 23 LYS B 167 ARG B 169 HOH B 381 HOH B 416 SITE 6 AC2 23 HOH B 425 HOH B 427 HOH B 498 CRYST1 51.560 52.860 52.830 75.79 60.71 61.17 P 1 2 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 0.019395 -0.010676 -0.010747 0.00000 SCALE2 0.000000 0.021594 -0.000270 0.00000 SCALE3 0.000000 0.000000 0.021705 0.00000