HEADER OXIDOREDUCTASE/DNA 01-JUL-09 3I49 TITLE CRYSTAL STRUCTURE OF ALKB IN COMPLEX WITH FE(II), 2-OXOGLUTARATE AND TITLE 2 METHYLATED TRINUCLEOTIDE T-MEC-T COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-KETOGLUTARATE-DEPENDENT DIOXYGENASE ALKB; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 12-216; COMPND 5 SYNONYM: ALKYLATED DNA REPAIR PROTEIN ALKB; COMPND 6 EC: 1.14.11.-; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: DNA (5'-D(P*TP*(ME6)P*T)-3'); COMPND 10 CHAIN: B; COMPND 11 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K-12; SOURCE 5 GENE: AIDD, ALKB, B2212, JW2200; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET26B; SOURCE 11 MOL_ID: 2; SOURCE 12 SYNTHETIC: YES KEYWDS BETA JELLYROLL, PROTEIN-DNA COMPLEX, DIOXYGENASE, DNA DAMAGE, DNA KEYWDS 2 REPAIR, IRON, METAL-BINDING, OXIDOREDUCTASE, OXIDOREDUCTASE-DNA KEYWDS 3 COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR B.YU,J.F.HUNT REVDAT 5 21-FEB-24 3I49 1 REMARK SEQADV LINK REVDAT 4 01-NOV-17 3I49 1 REMARK REVDAT 3 13-JUL-11 3I49 1 VERSN REVDAT 2 08-SEP-09 3I49 1 JRNL REVDAT 1 25-AUG-09 3I49 0 JRNL AUTH B.YU,J.F.HUNT JRNL TITL ENZYMOLOGICAL AND STRUCTURAL STUDIES OF THE MECHANISM OF JRNL TITL 2 PROMISCUOUS SUBSTRATE RECOGNITION BY THE OXIDATIVE DNA JRNL TITL 3 REPAIR ENZYME ALKB. JRNL REF PROC.NATL.ACAD.SCI.USA V. 106 14315 2009 JRNL REFN ISSN 0027-8424 JRNL PMID 19706517 JRNL DOI 10.1073/PNAS.0812938106 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.2 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.80 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1210185.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.5 REMARK 3 NUMBER OF REFLECTIONS : 24783 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) : 0.186 REMARK 3 FREE R VALUE : 0.214 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.300 REMARK 3 FREE R VALUE TEST SET COUNT : 2550 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 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) : 1.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.70 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 88.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3439 REMARK 3 BIN R VALUE (WORKING SET) : 0.2220 REMARK 3 BIN FREE R VALUE : 0.2520 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 355 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.013 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1564 REMARK 3 NUCLEIC ACID ATOMS : 61 REMARK 3 HETEROGEN ATOMS : 11 REMARK 3 SOLVENT ATOMS : 281 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.71 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.50000 REMARK 3 B22 (A**2) : 0.50000 REMARK 3 B33 (A**2) : -1.01000 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) : 0.17 REMARK 3 ESD FROM SIGMAA (A) : 0.10 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) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.11 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.810 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) : 1.210 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.920 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.830 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.670 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.35 REMARK 3 BSOL : 52.47 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : DNA-RNA_REP.PARAM_BY REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : AKG.PAR REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : DNA-RNA.TOP_BY REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : AKG.TOP REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED REMARK 4 REMARK 4 3I49 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-JUL-09. REMARK 100 THE DEPOSITION ID IS D_1000053944. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-NOV-06 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X4C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : 0.97947 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, HKL-3000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25984 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 7.900 REMARK 200 R MERGE (I) : 0.07400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.63 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 8.20 REMARK 200 R MERGE FOR SHELL (I) : 0.65600 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: COMO 1.2 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.12 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, SODIUM FORMATE, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 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+3/4 REMARK 290 4555 Y,-X,Z+1/4 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 58.60650 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 87.90975 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 29.30325 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: 1570 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9240 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 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 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 11 REMARK 465 GLN A 12 REMARK 465 GLU A 13 REMARK 465 PRO A 14 REMARK 465 LYS A 215 REMARK 465 GLU A 216 REMARK 465 ASN A 217 REMARK 465 LEU A 218 REMARK 465 TYR A 219 REMARK 465 PHE A 220 REMARK 465 GLN A 221 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 O2 AKG A 400 FE FE2 A 300 2.10 REMARK 500 OD1 ASP A 133 FE FE2 A 300 2.13 REMARK 500 NE2 HIS A 187 FE FE2 A 300 2.16 REMARK 500 FE FE2 A 300 O HOH A 601 2.16 REMARK 500 NE2 HIS A 131 FE FE2 A 300 2.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 DT B 501 P DT B 501 OP3 -0.086 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 GLN A 74 78.85 -150.14 REMARK 500 ILE A 201 -84.97 69.72 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 AKG A 400 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3I3M RELATED DB: PDB REMARK 900 SAME PROTEIN WITH MN(II) INSTEAD OF FE(II) REMARK 900 RELATED ID: 2IUW RELATED DB: PDB REMARK 900 HOMOLOGUE REMARK 900 RELATED ID: 3BUC RELATED DB: PDB REMARK 900 HOMOLOGUE REMARK 900 RELATED ID: 3I3Q RELATED DB: PDB REMARK 900 RELATED ID: 3I2O RELATED DB: PDB DBREF 3I49 A 12 216 UNP P05050 ALKB_ECOLI 12 216 DBREF 3I49 B 501 503 PDB 3I49 3I49 501 503 SEQADV 3I49 MET A 11 UNP P05050 INITIATING METHIONINE SEQADV 3I49 ASN A 217 UNP P05050 EXPRESSION TAG SEQADV 3I49 LEU A 218 UNP P05050 EXPRESSION TAG SEQADV 3I49 TYR A 219 UNP P05050 EXPRESSION TAG SEQADV 3I49 PHE A 220 UNP P05050 EXPRESSION TAG SEQADV 3I49 GLN A 221 UNP P05050 EXPRESSION TAG SEQRES 1 A 211 MET GLN GLU PRO LEU ALA ALA GLY ALA VAL ILE LEU ARG SEQRES 2 A 211 ARG PHE ALA PHE ASN ALA ALA GLU GLN LEU ILE ARG ASP SEQRES 3 A 211 ILE ASN ASP VAL ALA SER GLN SER PRO PHE ARG GLN MET SEQRES 4 A 211 VAL THR PRO GLY GLY TYR THR MET SER VAL ALA MET THR SEQRES 5 A 211 ASN CYS GLY HIS LEU GLY TRP THR THR HIS ARG GLN GLY SEQRES 6 A 211 TYR LEU TYR SER PRO ILE ASP PRO GLN THR ASN LYS PRO SEQRES 7 A 211 TRP PRO ALA MET PRO GLN SER PHE HIS ASN LEU CYS GLN SEQRES 8 A 211 ARG ALA ALA THR ALA ALA GLY TYR PRO ASP PHE GLN PRO SEQRES 9 A 211 ASP ALA CYS LEU ILE ASN ARG TYR ALA PRO GLY ALA LYS SEQRES 10 A 211 LEU SER LEU HIS GLN ASP LYS ASP GLU PRO ASP LEU ARG SEQRES 11 A 211 ALA PRO ILE VAL SER VAL SER LEU GLY LEU PRO ALA ILE SEQRES 12 A 211 PHE GLN PHE GLY GLY LEU LYS ARG ASN ASP PRO LEU LYS SEQRES 13 A 211 ARG LEU LEU LEU GLU HIS GLY ASP VAL VAL VAL TRP GLY SEQRES 14 A 211 GLY GLU SER ARG LEU PHE TYR HIS GLY ILE GLN PRO LEU SEQRES 15 A 211 LYS ALA GLY PHE HIS PRO LEU THR ILE ASP CYS ARG TYR SEQRES 16 A 211 ASN LEU THR PHE ARG GLN ALA GLY LYS LYS GLU ASN LEU SEQRES 17 A 211 TYR PHE GLN SEQRES 1 B 3 DT ME6 DT MODRES 3I49 ME6 B 502 DC HET ME6 B 502 20 HET AKG A 400 10 HET FE2 A 300 1 HETNAM ME6 [(2R,3S,5R)-5-(4-AZANYL-3-METHYL-2-OXO-PYRIMIDIN-3-IUM- HETNAM 2 ME6 1-YL)-3-HYDROXY-OXOLAN-2-YL]METHYL DIHYDROGEN HETNAM 3 ME6 PHOSPHATE HETNAM AKG 2-OXOGLUTARIC ACID HETNAM FE2 FE (II) ION FORMUL 2 ME6 C10 H17 N3 O7 P 1+ FORMUL 3 AKG C5 H6 O5 FORMUL 4 FE2 FE 2+ FORMUL 5 HOH *281(H2 O) HELIX 1 1 ALA A 29 SER A 44 1 16 HELIX 2 2 PRO A 93 ALA A 107 1 15 HELIX 3 3 GLY A 180 ARG A 183 5 4 SHEET 1 A 6 ALA A 19 LEU A 22 0 SHEET 2 A 6 VAL A 175 TRP A 178 -1 O VAL A 175 N LEU A 22 SHEET 3 A 6 ILE A 143 GLY A 149 -1 N SER A 145 O VAL A 176 SHEET 4 A 6 ARG A 204 ARG A 210 -1 O TYR A 205 N LEU A 148 SHEET 5 A 6 ALA A 116 TYR A 122 -1 N TYR A 122 O ARG A 204 SHEET 6 A 6 ALA A 60 CYS A 64 -1 N THR A 62 O ILE A 119 SHEET 1 B 2 GLY A 68 HIS A 72 0 SHEET 2 B 2 GLY A 75 SER A 79 -1 O LEU A 77 N THR A 70 SHEET 1 C 4 LEU A 128 HIS A 131 0 SHEET 2 C 4 HIS A 187 ILE A 189 -1 O ILE A 189 N LEU A 128 SHEET 3 C 4 ALA A 152 PHE A 156 -1 N GLN A 155 O GLY A 188 SHEET 4 C 4 LYS A 166 LEU A 170 -1 O LEU A 168 N PHE A 154 LINK O3' DT B 501 P ME6 B 502 1555 1555 1.60 LINK O3' ME6 B 502 P DT B 503 1555 1555 1.61 SITE 1 AC1 17 LEU A 118 ASN A 120 TYR A 122 LEU A 128 SITE 2 AC1 17 HIS A 131 ASP A 133 HIS A 187 ILE A 189 SITE 3 AC1 17 ARG A 204 ASN A 206 THR A 208 ARG A 210 SITE 4 AC1 17 FE2 A 300 HOH A 601 HOH A 625 HOH A 655 SITE 5 AC1 17 ME6 B 502 SITE 1 AC2 5 HIS A 131 ASP A 133 HIS A 187 AKG A 400 SITE 2 AC2 5 HOH A 601 CRYST1 41.374 41.374 117.213 90.00 90.00 90.00 P 43 4 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 0.024170 0.000000 0.000000 0.00000 SCALE2 0.000000 0.024170 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008531 0.00000