HEADER ELECTRON TRANSPORT 11-NOV-04 1XYY TITLE LOW TEMPERATURE (100K) CRYSTAL STRUCTURE OF FLAVODOXIN MUTANT S64C, TITLE 2 HOMODIMER, OXIDISED STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: FLAVODOXIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO VULGARIS; SOURCE 3 ORGANISM_TAXID: 881; SOURCE 4 EXPRESSION_SYSTEM: DESULFOVIBRIO VULGARIS; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 881; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PT7 KEYWDS FLAVODOXIN, S64C MUTANT, DIMER, OXIDIZED FORM, ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR R.ARTALI,N.MARCHINI,F.MENEGHETTI,D.CAVAZZINI,G.BOMBIERI,G.L.ROSSI, AUTHOR 2 G.GILARDI REVDAT 6 25-OCT-23 1XYY 1 REMARK REVDAT 5 10-NOV-21 1XYY 1 REMARK SEQADV REVDAT 4 22-DEC-10 1XYY 1 JRNL REVDAT 3 24-FEB-09 1XYY 1 VERSN REVDAT 2 01-MAR-05 1XYY 1 TITLE REVDAT 1 07-DEC-04 1XYY 0 JRNL AUTH A.FANTUZZI,R.ARTALI,G.BOMBIERI,N.MARCHINI,F.MENEGHETTI, JRNL AUTH 2 G.GILARDI,S.J.SADEGHI,D.CAVAZZINI,G.L.ROSSI JRNL TITL REDOX PROPERTIES AND CRYSTAL STRUCTURES OF A DESULFOVIBRIO JRNL TITL 2 VULGARIS FLAVODOXIN MUTANT IN THE MONOMERIC AND HOMODIMERIC JRNL TITL 3 FORMS. JRNL REF BIOCHIM.BIOPHYS.ACTA V.1794 496 2009 JRNL REFN ISSN 0006-3002 JRNL PMID 19118653 JRNL DOI 10.1016/J.BBAPAP.2008.11.026 REMARK 2 REMARK 2 RESOLUTION. 1.70 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) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.92 REMARK 3 DATA CUTOFF (SIGMA(F)) : 20.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1241568.130 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 54.9 REMARK 3 NUMBER OF REFLECTIONS : 11841 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) : 0.195 REMARK 3 FREE R VALUE : 0.253 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.700 REMARK 3 FREE R VALUE TEST SET COUNT : 1153 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.009 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) : 1.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.81 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 12.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 376 REMARK 3 BIN R VALUE (WORKING SET) : 0.1940 REMARK 3 BIN FREE R VALUE : 0.2510 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 13.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 57 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.042 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1101 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 31 REMARK 3 SOLVENT ATOMS : 194 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 4.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 16.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.91000 REMARK 3 B22 (A**2) : 2.91000 REMARK 3 B33 (A**2) : -5.82000 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) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.28 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) : 0.30 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.21 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.025 REMARK 3 BOND ANGLES (DEGREES) : 2.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.980 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) : 1.530 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.200 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.250 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.020 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.50 REMARK 3 BSOL : 91.91 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 : FMN.PARAM 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 : FMN.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1XYY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 16-NOV-04. REMARK 100 THE DEPOSITION ID IS D_1000030919. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-DEC-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ELETTRA REMARK 200 BEAMLINE : 5.2R REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0000 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13063 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.660 REMARK 200 RESOLUTION RANGE LOW (A) : 41.170 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.12700 REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.79 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 5.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.24100 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: NULL REMARK 200 STARTING MODEL: 1J9G REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 63.16 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.34 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, PH 7.0, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 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+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 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 61.02500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 27.68000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 27.68000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 30.51250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 27.68000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 27.68000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 91.53750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 27.68000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 27.68000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 30.51250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 27.68000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 27.68000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 91.53750 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 61.02500 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 GENERATED FROM THE REMARK 300 MONOMER IN THE ASYMMETRIC UNIT BY THE OPERATIONS: -Y, -X, -Z+1/2 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 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 55.36000 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 55.36000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -427.17500 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OD2 ASP A 106 NH2 ARG A 125 2.02 REMARK 500 O HOH A 151 O HOH A 264 2.09 REMARK 500 OE1 GLU A 110 O HOH A 191 2.17 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 NE ARG A 24 NE ARG A 24 7822 2.03 REMARK 500 O HOH A 277 O HOH A 277 8661 2.16 REMARK 500 REMARK 500 REMARK: NULL 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 VAL A 33 CG1 - CB - CG2 ANGL. DEV. = -9.8 DEGREES REMARK 500 CYS A 64 CA - CB - SG ANGL. DEV. = 7.5 DEGREES REMARK 500 ASP A 70 CB - CG - OD1 ANGL. DEV. = 5.7 DEGREES REMARK 500 ASP A 127 CB - CG - OD2 ANGL. DEV. = -7.2 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 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 ASP A 63 -87.14 -107.08 REMARK 500 CYS A 64 165.30 -22.79 REMARK 500 TYR A 100 73.61 -119.12 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR A 100 0.06 SIDE CHAIN 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 149 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1WSB RELATED DB: PDB REMARK 900 THE SAME PROTEIN IN THE SEMIREDUCED FORM AT 1.80 A REMARK 900 RELATED ID: 1WSW RELATED DB: PDB REMARK 900 THE SAME PROTEIN IN THE SEMIREDUCED FORM AT 1.69 A REMARK 900 RELATED ID: 1XYV RELATED DB: PDB REMARK 900 THE SAME PROTEIN IN THE SEMIREDUCED FORM AT 1.79 A REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE AUTHORS MAINTAIN THAT RESIDUE 2 IS ALA AND NOT PRO. DBREF 1XYY A 1 148 UNP P00323 FLAV_DESVH 1 148 SEQADV 1XYY ALA A 2 UNP P00323 PRO 2 SEE REMARK 999 SEQADV 1XYY CYS A 64 UNP P00323 SER 64 ENGINEERED MUTATION SEQRES 1 A 148 MET ALA LYS ALA LEU ILE VAL TYR GLY SER THR THR GLY SEQRES 2 A 148 ASN THR GLU TYR THR ALA GLU THR ILE ALA ARG GLU LEU SEQRES 3 A 148 ALA ASP ALA GLY TYR GLU VAL ASP SER ARG ASP ALA ALA SEQRES 4 A 148 SER VAL GLU ALA GLY GLY LEU PHE GLU GLY PHE ASP LEU SEQRES 5 A 148 VAL LEU LEU GLY CYS SER THR TRP GLY ASP ASP CYS ILE SEQRES 6 A 148 GLU LEU GLN ASP ASP PHE ILE PRO LEU PHE ASP SER LEU SEQRES 7 A 148 GLU GLU THR GLY ALA GLN GLY ARG LYS VAL ALA CYS PHE SEQRES 8 A 148 GLY CYS GLY ASP SER SER TYR GLU TYR PHE CYS GLY ALA SEQRES 9 A 148 VAL ASP ALA ILE GLU GLU LYS LEU LYS ASN LEU GLY ALA SEQRES 10 A 148 GLU ILE VAL GLN ASP GLY LEU ARG ILE ASP GLY ASP PRO SEQRES 11 A 148 ARG ALA ALA ARG ASP ASP ILE VAL GLY TRP ALA HIS ASP SEQRES 12 A 148 VAL ARG GLY ALA ILE HET FMN A 149 31 HETNAM FMN FLAVIN MONONUCLEOTIDE HETSYN FMN RIBOFLAVIN MONOPHOSPHATE FORMUL 2 FMN C17 H21 N4 O9 P FORMUL 3 HOH *194(H2 O) HELIX 1 1 GLY A 13 ALA A 29 1 17 HELIX 2 2 ALA A 39 VAL A 41 5 3 HELIX 3 3 PHE A 71 SER A 77 1 7 HELIX 4 4 LEU A 78 THR A 81 5 4 HELIX 5 5 CYS A 102 LEU A 115 1 14 HELIX 6 6 ASP A 129 ALA A 132 5 4 HELIX 7 7 ALA A 133 ALA A 147 1 15 SHEET 1 A 5 GLU A 32 ASP A 37 0 SHEET 2 A 5 LYS A 3 GLY A 9 1 N ALA A 4 O ASP A 34 SHEET 3 A 5 LEU A 52 CYS A 57 1 O GLY A 56 N VAL A 7 SHEET 4 A 5 LYS A 87 GLY A 94 1 O LYS A 87 N VAL A 53 SHEET 5 A 5 GLU A 118 ILE A 119 1 O GLU A 118 N VAL A 88 SHEET 1 B 5 GLU A 32 ASP A 37 0 SHEET 2 B 5 LYS A 3 GLY A 9 1 N ALA A 4 O ASP A 34 SHEET 3 B 5 LEU A 52 CYS A 57 1 O GLY A 56 N VAL A 7 SHEET 4 B 5 LYS A 87 GLY A 94 1 O LYS A 87 N VAL A 53 SHEET 5 B 5 LEU A 124 ASP A 127 1 O ILE A 126 N GLY A 94 SHEET 1 C 2 THR A 59 TRP A 60 0 SHEET 2 C 2 GLU A 66 LEU A 67 -1 O GLU A 66 N TRP A 60 SSBOND 1 CYS A 64 CYS A 64 1555 8661 2.06 SITE 1 AC1 20 SER A 10 THR A 11 THR A 12 GLY A 13 SITE 2 AC1 20 ASN A 14 THR A 15 SER A 58 THR A 59 SITE 3 AC1 20 TRP A 60 GLY A 61 GLY A 94 ASP A 95 SITE 4 AC1 20 TYR A 98 TYR A 100 PHE A 101 CYS A 102 SITE 5 AC1 20 HOH A 167 HOH A 208 HOH A 217 HOH A 252 CRYST1 55.360 55.360 122.050 90.00 90.00 90.00 P 41 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 0.018064 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018064 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008193 0.00000