HEADER OXIDOREDUCTASE 10-AUG-07 2QWX TITLE CRYSTAL STRUCTURE OF QUINONE REDUCTASE II COMPND MOL_ID: 1; COMPND 2 MOLECULE: RIBOSYLDIHYDRONICOTINAMIDE DEHYDROGENASE [QUINONE]; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: NRH DEHYDROGENASE [QUINONE] 2, QUINONE REDUCTASE 2, QR2, COMPND 5 NRH:QUINONE OXIDOREDUCTASE 2; COMPND 6 EC: 1.10.99.2; 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 GENE: NQO2, NMOR2; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET23D KEYWDS QR2, FAD, FLAVOPROTEIN, METAL-BINDING, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR B.CALAMINI,B.D.SANTARSIERO,J.A.BOUTIN,A.D.MESECAR REVDAT 6 21-FEB-24 2QWX 1 REMARK REVDAT 5 13-MAR-13 2QWX 1 HETSYN VERSN REVDAT 4 24-FEB-09 2QWX 1 VERSN REVDAT 3 16-SEP-08 2QWX 1 HETNAM REVDAT 2 08-JUL-08 2QWX 1 JRNL REVDAT 1 29-APR-08 2QWX 0 JRNL AUTH B.CALAMINI,B.D.SANTARSIERO,J.A.BOUTIN,A.D.MESECAR JRNL TITL KINETIC, THERMODYNAMIC AND X-RAY STRUCTURAL INSIGHTS INTO JRNL TITL 2 THE INTERACTION OF MELATONIN AND ANALOGUES WITH QUINONE JRNL TITL 3 REDUCTASE 2. JRNL REF BIOCHEM.J. V. 413 81 2008 JRNL REFN ISSN 0264-6021 JRNL PMID 18254726 JRNL DOI 10.1042/BJ20071373 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.4 REMARK 3 NUMBER OF REFLECTIONS : 80136 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : RANDOM REMARK 3 FREE R VALUE TEST SET SELECTION : 5% REMARK 3 R VALUE (WORKING SET) : 0.192 REMARK 3 FREE R VALUE : 0.213 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 4059 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 : 3648 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 142 REMARK 3 SOLVENT ATOMS : 479 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -3.81400 REMARK 3 B22 (A**2) : -1.15400 REMARK 3 B33 (A**2) : 4.96800 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) : 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) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.130 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 61.47 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 : CNS_TOPPAR:PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : CNS_TOPPAR:WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : CNS_TOPPAR:ION.PARAM REMARK 3 PARAMETER FILE 4 : FAD.PAR REMARK 3 PARAMETER FILE 5 : MEL.PAR REMARK 3 PARAMETER FILE 6 : CIS.PARAM REMARK 3 PARAMETER FILE 7 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 TOPOLOGY FILE 7 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2QWX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-SEP-07. REMARK 100 THE DEPOSITION ID IS D_1000044147. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-JUN-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 84189 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.470 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 200 DATA REDUNDANCY : 4.700 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 29.8000 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: NULL REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.42 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NACL, AMMONIUM SULFATE, FAD, REMARK 280 MELATONIN, DTT, GLYCEROL, PH 6.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-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 SMTRY1 2 -1.000000 0.000000 0.000000 28.31750 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 53.17600 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 41.77450 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 53.17600 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 28.31750 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 41.77450 REMARK 290 SMTRY3 4 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: BIOLOGICAL UNIT IS A DIMER OF CHAINS A AND B IN THE REMARK 300 ASYMMETRIC UNIT 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: 7430 ANGSTROM**2 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 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 0 REMARK 465 MET B 0 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 OD1 ASN B 45 O HOH B 326 2.08 REMARK 500 O HOH A 254 O HOH A 465 2.14 REMARK 500 O HOH A 361 O HOH A 428 2.16 REMARK 500 O HOH A 393 O HOH A 464 2.17 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 ARG A 49 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 ARG A 49 NE - CZ - NH2 ANGL. DEV. = -3.7 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 SER A 107 -164.84 -160.38 REMARK 500 TYR A 132 -126.36 54.15 REMARK 500 TYR A 155 52.92 -99.91 REMARK 500 ALA A 191 57.59 33.89 REMARK 500 SER B 107 -163.81 -162.76 REMARK 500 TYR B 132 -128.08 55.76 REMARK 500 TYR B 155 45.57 -96.01 REMARK 500 ALA B 191 60.67 36.06 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 231 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 173 ND1 REMARK 620 2 HIS A 177 ND1 109.7 REMARK 620 3 CYS A 222 O 106.8 99.5 REMARK 620 4 CYS A 222 SG 126.0 113.4 96.6 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 231 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 173 ND1 REMARK 620 2 HIS B 177 ND1 115.5 REMARK 620 3 CYS B 222 O 105.5 91.5 REMARK 620 4 CYS B 222 SG 123.8 110.1 104.2 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 231 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 231 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FAD A 232 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FAD B 232 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ML1 B 233 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ML1 A 233 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SG0 RELATED DB: PDB REMARK 900 STRUCTURE OF QR2 IN COMPLEX WITH RESVERATROL DBREF 2QWX A 0 230 UNP P16083 NQO2_HUMAN 1 231 DBREF 2QWX B 0 230 UNP P16083 NQO2_HUMAN 1 231 SEQRES 1 A 231 MET ALA GLY LYS LYS VAL LEU ILE VAL TYR ALA HIS GLN SEQRES 2 A 231 GLU PRO LYS SER PHE ASN GLY SER LEU LYS ASN VAL ALA SEQRES 3 A 231 VAL ASP GLU LEU SER ARG GLN GLY CYS THR VAL THR VAL SEQRES 4 A 231 SER ASP LEU TYR ALA MET ASN PHE GLU PRO ARG ALA THR SEQRES 5 A 231 ASP LYS ASP ILE THR GLY THR LEU SER ASN PRO GLU VAL SEQRES 6 A 231 PHE ASN TYR GLY VAL GLU THR HIS GLU ALA TYR LYS GLN SEQRES 7 A 231 ARG SER LEU ALA SER ASP ILE THR ASP GLU GLN LYS LYS SEQRES 8 A 231 VAL ARG GLU ALA ASP LEU VAL ILE PHE GLN PHE PRO LEU SEQRES 9 A 231 TYR TRP PHE SER VAL PRO ALA ILE LEU LYS GLY TRP MET SEQRES 10 A 231 ASP ARG VAL LEU CYS GLN GLY PHE ALA PHE ASP ILE PRO SEQRES 11 A 231 GLY PHE TYR ASP SER GLY LEU LEU GLN GLY LYS LEU ALA SEQRES 12 A 231 LEU LEU SER VAL THR THR GLY GLY THR ALA GLU MET TYR SEQRES 13 A 231 THR LYS THR GLY VAL ASN GLY ASP SER ARG TYR PHE LEU SEQRES 14 A 231 TRP PRO LEU GLN HIS GLY THR LEU HIS PHE CYS GLY PHE SEQRES 15 A 231 LYS VAL LEU ALA PRO GLN ILE SER PHE ALA PRO GLU ILE SEQRES 16 A 231 ALA SER GLU GLU GLU ARG LYS GLY MET VAL ALA ALA TRP SEQRES 17 A 231 SER GLN ARG LEU GLN THR ILE TRP LYS GLU GLU PRO ILE SEQRES 18 A 231 PRO CYS THR ALA HIS TRP HIS PHE GLY GLN SEQRES 1 B 231 MET ALA GLY LYS LYS VAL LEU ILE VAL TYR ALA HIS GLN SEQRES 2 B 231 GLU PRO LYS SER PHE ASN GLY SER LEU LYS ASN VAL ALA SEQRES 3 B 231 VAL ASP GLU LEU SER ARG GLN GLY CYS THR VAL THR VAL SEQRES 4 B 231 SER ASP LEU TYR ALA MET ASN PHE GLU PRO ARG ALA THR SEQRES 5 B 231 ASP LYS ASP ILE THR GLY THR LEU SER ASN PRO GLU VAL SEQRES 6 B 231 PHE ASN TYR GLY VAL GLU THR HIS GLU ALA TYR LYS GLN SEQRES 7 B 231 ARG SER LEU ALA SER ASP ILE THR ASP GLU GLN LYS LYS SEQRES 8 B 231 VAL ARG GLU ALA ASP LEU VAL ILE PHE GLN PHE PRO LEU SEQRES 9 B 231 TYR TRP PHE SER VAL PRO ALA ILE LEU LYS GLY TRP MET SEQRES 10 B 231 ASP ARG VAL LEU CYS GLN GLY PHE ALA PHE ASP ILE PRO SEQRES 11 B 231 GLY PHE TYR ASP SER GLY LEU LEU GLN GLY LYS LEU ALA SEQRES 12 B 231 LEU LEU SER VAL THR THR GLY GLY THR ALA GLU MET TYR SEQRES 13 B 231 THR LYS THR GLY VAL ASN GLY ASP SER ARG TYR PHE LEU SEQRES 14 B 231 TRP PRO LEU GLN HIS GLY THR LEU HIS PHE CYS GLY PHE SEQRES 15 B 231 LYS VAL LEU ALA PRO GLN ILE SER PHE ALA PRO GLU ILE SEQRES 16 B 231 ALA SER GLU GLU GLU ARG LYS GLY MET VAL ALA ALA TRP SEQRES 17 B 231 SER GLN ARG LEU GLN THR ILE TRP LYS GLU GLU PRO ILE SEQRES 18 B 231 PRO CYS THR ALA HIS TRP HIS PHE GLY GLN HET ZN A 231 1 HET FAD A 232 53 HET ML1 A 233 17 HET ZN B 231 1 HET FAD B 232 53 HET ML1 B 233 17 HETNAM ZN ZINC ION HETNAM FAD FLAVIN-ADENINE DINUCLEOTIDE HETNAM ML1 N-[2-(5-METHOXY-1H-INDOL-3-YL)ETHYL]ACETAMIDE HETSYN ML1 MELATONIN FORMUL 3 ZN 2(ZN 2+) FORMUL 4 FAD 2(C27 H33 N9 O15 P2) FORMUL 5 ML1 2(C13 H16 N2 O2) FORMUL 9 HOH *479(H2 O) HELIX 1 1 SER A 16 GLN A 32 1 17 HELIX 2 2 THR A 51 ILE A 55 5 5 HELIX 3 3 ASN A 66 ARG A 78 1 13 HELIX 4 4 ALA A 81 ALA A 94 1 14 HELIX 5 5 PRO A 109 LEU A 120 1 12 HELIX 6 6 PHE A 131 GLY A 135 5 5 HELIX 7 7 ALA A 152 THR A 156 5 5 HELIX 8 8 ASP A 163 HIS A 173 1 11 HELIX 9 9 SER A 196 THR A 213 1 18 HELIX 10 10 ILE A 214 GLU A 217 5 4 HELIX 11 11 THR A 223 GLY A 229 1 7 HELIX 12 12 SER B 16 GLN B 32 1 17 HELIX 13 13 THR B 51 ILE B 55 5 5 HELIX 14 14 ASN B 66 GLN B 77 1 12 HELIX 15 15 ALA B 81 ALA B 94 1 14 HELIX 16 16 PRO B 109 LEU B 120 1 12 HELIX 17 17 PHE B 131 GLY B 135 5 5 HELIX 18 18 ALA B 152 THR B 156 5 5 HELIX 19 19 ASP B 163 HIS B 173 1 11 HELIX 20 20 SER B 196 THR B 213 1 18 HELIX 21 21 ILE B 214 GLU B 217 5 4 HELIX 22 22 THR B 223 PHE B 228 1 6 SHEET 1 A 5 THR A 35 ASP A 40 0 SHEET 2 A 5 LYS A 4 TYR A 9 1 N VAL A 5 O THR A 35 SHEET 3 A 5 LEU A 96 PRO A 102 1 O ILE A 98 N LEU A 6 SHEET 4 A 5 LEU A 141 THR A 147 1 O SER A 145 N PHE A 99 SHEET 5 A 5 LYS A 182 VAL A 183 1 O LYS A 182 N ALA A 142 SHEET 1 B 5 THR A 35 ASP A 40 0 SHEET 2 B 5 LYS A 4 TYR A 9 1 N VAL A 5 O THR A 35 SHEET 3 B 5 LEU A 96 PRO A 102 1 O ILE A 98 N LEU A 6 SHEET 4 B 5 LEU A 141 THR A 147 1 O SER A 145 N PHE A 99 SHEET 5 B 5 GLN A 187 SER A 189 1 O SER A 189 N VAL A 146 SHEET 1 C 5 THR B 35 ASP B 40 0 SHEET 2 C 5 LYS B 4 TYR B 9 1 N VAL B 5 O THR B 35 SHEET 3 C 5 LEU B 96 PRO B 102 1 O ILE B 98 N VAL B 8 SHEET 4 C 5 LEU B 141 THR B 147 1 O SER B 145 N PHE B 99 SHEET 5 C 5 LYS B 182 VAL B 183 1 O LYS B 182 N ALA B 142 SHEET 1 D 5 THR B 35 ASP B 40 0 SHEET 2 D 5 LYS B 4 TYR B 9 1 N VAL B 5 O THR B 35 SHEET 3 D 5 LEU B 96 PRO B 102 1 O ILE B 98 N VAL B 8 SHEET 4 D 5 LEU B 141 THR B 147 1 O SER B 145 N PHE B 99 SHEET 5 D 5 GLN B 187 SER B 189 1 O GLN B 187 N LEU B 144 LINK ND1 HIS A 173 ZN ZN A 231 1555 1555 2.07 LINK ND1 HIS A 177 ZN ZN A 231 1555 1555 2.12 LINK O CYS A 222 ZN ZN A 231 1555 1555 2.09 LINK SG CYS A 222 ZN ZN A 231 1555 1555 2.28 LINK ND1 HIS B 173 ZN ZN B 231 1555 1555 2.17 LINK ND1 HIS B 177 ZN ZN B 231 1555 1555 2.10 LINK O CYS B 222 ZN ZN B 231 1555 1555 2.33 LINK SG CYS B 222 ZN ZN B 231 1555 1555 2.36 CISPEP 1 ILE A 128 PRO A 129 0 0.00 CISPEP 2 ILE B 128 PRO B 129 0 0.52 SITE 1 AC1 3 HIS A 173 HIS A 177 CYS A 222 SITE 1 AC2 3 HIS B 173 HIS B 177 CYS B 222 SITE 1 AC3 29 HIS A 11 LYS A 15 SER A 16 PHE A 17 SITE 2 AC3 29 ASN A 18 SER A 20 PRO A 102 LEU A 103 SITE 3 AC3 29 TYR A 104 TRP A 105 PHE A 106 THR A 147 SITE 4 AC3 29 THR A 148 GLY A 149 GLY A 150 TYR A 155 SITE 5 AC3 29 GLU A 193 ARG A 200 LYS A 201 HOH A 330 SITE 6 AC3 29 HOH A 349 HOH A 355 HOH A 410 HOH A 421 SITE 7 AC3 29 HOH A 453 ASN B 66 TYR B 67 ASP B 117 SITE 8 AC3 29 HOH B 450 SITE 1 AC4 26 ASN A 66 ASP A 117 HIS B 11 SER B 16 SITE 2 AC4 26 PHE B 17 ASN B 18 SER B 20 PRO B 102 SITE 3 AC4 26 LEU B 103 TYR B 104 TRP B 105 PHE B 106 SITE 4 AC4 26 THR B 147 THR B 148 GLY B 149 GLY B 150 SITE 5 AC4 26 TYR B 155 GLU B 193 GLU B 197 ARG B 200 SITE 6 AC4 26 LYS B 201 HOH B 324 HOH B 348 HOH B 374 SITE 7 AC4 26 HOH B 433 HOH B 448 SITE 1 AC5 11 TRP A 105 GLY A 149 GLY A 150 MET A 154 SITE 2 AC5 11 HOH A 398 GLY B 68 PHE B 126 PHE B 178 SITE 3 AC5 11 HOH B 447 HOH B 449 HOH B 450 SITE 1 AC6 11 PHE A 126 ILE A 128 PHE A 178 HOH A 456 SITE 2 AC6 11 HOH A 473 HOH A 491 TRP B 105 PHE B 106 SITE 3 AC6 11 GLY B 149 MET B 154 ILE B 194 CRYST1 56.635 83.549 106.352 90.00 90.00 90.00 P 21 21 21 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 0.017657 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011969 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009403 0.00000