1OPR - Header Asymmetric Unit

HEADER TRANSFERASE 06-JAN-95 1OPR

TITLE THE CRYSTAL STRUCTURE OF THE OROTATE PHOSPHORIBOSYLTRANSFERASE TITLE 2 COMPLEXED WITH OROTATE AND ALPHA-D-5-PHOSPHORIBOSYL-1-PYROPHOSPHATE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: OROTATE PHOSPHORIBOSYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: OPRTASE; COMPND 5 EC: 2.4.2.10; COMPND 6 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM; SOURCE 3 ORGANISM_TAXID: 602; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS TRANSFERASE

EXPDTA X-RAY DIFFRACTION

AUTHOR G.SCAPIN,J.C.SACCHETTINI

REVDAT 4 13-JUL-11 1OPR 1 VERSN REVDAT 3 24-FEB-09 1OPR 1 VERSN REVDAT 2 01-APR-03 1OPR 1 JRNL REVDAT 1 06-JAN-96 1OPR 0

JRNL AUTH G.SCAPIN,D.H.OZTURK,C.GRUBMEYER,J.C.SACCHETTINI JRNL TITL THE CRYSTAL STRUCTURE OF THE OROTATE JRNL TITL 2 PHOSPHORIBOSYLTRANSFERASE COMPLEXED WITH OROTATE AND JRNL TITL 3 ALPHA-D-5-PHOSPHORIBOSYL-1-PYROPHOSPHATE. JRNL REF BIOCHEMISTRY V. 34 10744 1995 JRNL REFN ISSN 0006-2960 JRNL PMID 7545004 JRNL DOI 10.1021/BI00034A006

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.SCAPIN,C.GRUBMEYER,J.C.SACCHETTINI REMARK 1 TITL CRYSTAL STRUCTURE OF OROTATE PHOSPHORIBOSYLTRANSFERASE REMARK 1 REF BIOCHEMISTRY V. 33 1287 1994 REMARK 1 REFN ISSN 0006-2960

REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT, X-PLOR REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS,BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 76.0 REMARK 3 NUMBER OF REFLECTIONS : 8993 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.187 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1645 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 34 REMARK 3 SOLVENT ATOMS : 61 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : NULL ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1OPR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12880 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.040 REMARK 200 RESOLUTION RANGE LOW (A) : 19.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 77.5 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.08 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL

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 108.30000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 23.65000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 54.15000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 23.65000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 162.45000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 23.65000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 54.15000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 23.65000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 162.45000 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 108.30000 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 5130 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18220 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -49.0 KCAL/MOL 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 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000

REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU A 101 CG CD OE1 OE2 REMARK 470 ASP A 104 CG OD1 OD2 REMARK 470 HIS A 105 CG ND1 CD2 CE1 NE2 REMARK 470 GLU A 107 CG CD OE1 OE2

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 GLU A 10 CD GLU A 10 OE1 0.083 REMARK 500 GLU A 22 CD GLU A 22 OE1 0.088 REMARK 500 GLU A 135 CD GLU A 135 OE1 0.080 REMARK 500 GLU A 138 CD GLU A 138 OE1 0.083 REMARK 500 GLU A 158 CD GLU A 158 OE1 0.074 REMARK 500 GLU A 163 CD GLU A 163 OE1 0.074 REMARK 500 GLU A 171 CD GLU A 171 OE2 0.093 REMARK 500 GLU A 193 CD GLU A 193 OE1 0.088 REMARK 500 GLU A 199 CD GLU A 199 OE2 0.097 REMARK 500 ALA A 203 C VAL A 204 N -0.139 REMARK 500 GLU A 209 CD GLU A 209 OE1 0.085 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 6 NE - CZ - NH2 ANGL. DEV. = -3.7 DEGREES REMARK 500 ARG A 29 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 ASP A 124 CB - CG - OD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 ARG A 156 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 ASP A 173 CB - CG - OD2 ANGL. DEV. = -5.4 DEGREES REMARK 500 ASP A 196 CB - CG - OD1 ANGL. DEV. = -7.6 DEGREES REMARK 500 ALA A 203 O - C - N ANGL. DEV. = -12.4 DEGREES REMARK 500 ARG A 205 NE - CZ - NH1 ANGL. DEV. = 7.3 DEGREES REMARK 500 ARG A 205 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 ARG A 208 NE - CZ - NH1 ANGL. DEV. = 4.8 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 ALA A 71 -115.43 28.16 REMARK 500 CYS A 96 148.67 -174.20 REMARK 500 ALA A 102 30.70 -149.13 REMARK 500 LYS A 103 74.57 -64.14 REMARK 500 ASP A 104 126.90 152.39 REMARK 500 HIS A 105 91.63 -34.18 REMARK 500 GLU A 107 -140.90 -116.28 REMARK 500 SER A 110 123.83 -9.74 REMARK 500 LEU A 116 84.72 -55.03 REMARK 500 HIS A 143 -2.03 -53.47 REMARK 500 ASP A 196 31.42 -93.67 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CHIRAL CENTERS REMARK 500 REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY REMARK 500 FOR AMINO ACIDS AND C1'--O4'--N1(N9)--C2' FOR REMARK 500 NUCLEIC ACIDS OR EQUIVALENT ANGLE REMARK 500 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,A1,6X,F5.1,6X,A1,10X,A1,3X,A16) REMARK 500 REMARK 500 M RES CSSEQI IMPROPER EXPECTED FOUND DETAILS REMARK 500 LYS A 73 17.4 L L OUTSIDE RANGE REMARK 500 LYS A 103 21.4 L L OUTSIDE RANGE REMARK 500 GLN A 141 21.8 L L OUTSIDE RANGE REMARK 500 GLU A 163 22.8 L L OUTSIDE RANGE REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 519 DISTANCE = 8.04 ANGSTROMS REMARK 525 HOH A 525 DISTANCE = 8.10 ANGSTROMS REMARK 525 HOH A 527 DISTANCE = 6.82 ANGSTROMS REMARK 525 HOH A 535 DISTANCE = 5.04 ANGSTROMS REMARK 525 HOH A 538 DISTANCE = 6.84 ANGSTROMS REMARK 525 HOH A 539 DISTANCE = 7.36 ANGSTROMS REMARK 525 HOH A 541 DISTANCE = 8.48 ANGSTROMS REMARK 525 HOH A 546 DISTANCE = 6.39 ANGSTROMS REMARK 525 HOH A 551 DISTANCE = 5.84 ANGSTROMS REMARK 525 HOH A 552 DISTANCE = 6.81 ANGSTROMS REMARK 525 HOH A 558 DISTANCE = 6.18 ANGSTROMS

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 MG A 300 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PRP A 221 O1 REMARK 620 2 PRP A 221 O2 61.3 REMARK 620 3 PRP A 221 O3A 53.1 69.3 REMARK 620 4 PRP A 221 O3B 105.2 97.3 52.4 REMARK 620 5 HOH A 561 O 154.1 94.4 130.0 85.7 REMARK 620 6 PRP A 221 O3 71.5 55.3 115.3 151.2 87.6 REMARK 620 N 1 2 3 4 5

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ORO A 220 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PRP A 221

DBREF 1OPR A 2 213 UNP P08870 PYRE_SALTY 1 212

SEQRES 1 A 213 MET LYS PRO TYR GLN ARG GLN PHE ILE GLU PHE ALA LEU SEQRES 2 A 213 ASN LYS GLN VAL LEU LYS PHE GLY GLU PHE THR LEU LYS SEQRES 3 A 213 SER GLY ARG LYS SER PRO TYR PHE PHE ASN ALA GLY LEU SEQRES 4 A 213 PHE ASN THR GLY ARG ASP LEU ALA LEU LEU GLY ARG PHE SEQRES 5 A 213 TYR ALA GLU ALA LEU VAL ASP SER GLY ILE GLU PHE ASP SEQRES 6 A 213 LEU LEU PHE GLY PRO ALA TYR LYS GLY ILE PRO ILE ALA SEQRES 7 A 213 THR THR THR ALA VAL ALA LEU ALA GLU HIS HIS ASP LYS SEQRES 8 A 213 ASP LEU PRO TYR CYS PHE ASN ARG LYS GLU ALA LYS ASP SEQRES 9 A 213 HIS GLY GLU GLY GLY SER LEU VAL GLY SER ALA LEU GLN SEQRES 10 A 213 GLY ARG VAL MET LEU VAL ASP ASP VAL ILE THR ALA GLY SEQRES 11 A 213 THR ALA ILE ARG GLU SER MET GLU ILE ILE GLN ALA HIS SEQRES 12 A 213 GLY ALA THR LEU ALA GLY VAL LEU ILE SER LEU ASP ARG SEQRES 13 A 213 GLN GLU ARG GLY ARG GLY GLU ILE SER ALA ILE GLN GLU SEQRES 14 A 213 VAL GLU ARG ASP TYR GLY CYS LYS VAL ILE SER ILE ILE SEQRES 15 A 213 THR LEU LYS ASP LEU ILE ALA TYR LEU GLU GLU LYS PRO SEQRES 16 A 213 ASP MET ALA GLU HIS LEU ALA ALA VAL ARG ALA TYR ARG SEQRES 17 A 213 GLU GLU PHE GLY VAL

HET MG A 300 1 HET ORO A 220 11 HET PRP A 221 22

HETNAM MG MAGNESIUM ION HETNAM ORO OROTIC ACID HETNAM PRP ALPHA-PHOSPHORIBOSYLPYROPHOSPHORIC ACID

FORMUL 2 MG MG 2+ FORMUL 3 ORO C5 H4 N2 O4 FORMUL 4 PRP C5 H13 O14 P3 FORMUL 5 HOH *61(H2 O)

HELIX 1 H1 TYR A 4 PHE A 20 1 17 HELIX 2 H2 ASN A 41 ASP A 59 1 19 HELIX 3 H3 GLY A 74 HIS A 88 1 15 HELIX 4 H4 ARG A 134 ALA A 142 1 9 HELIX 5 H5 SER A 165 ASP A 173 1 9 HELIX 6 H6 LYS A 185 GLU A 193 1 9 HELIX 7 H7 ALA A 198 GLU A 210 1 13

SHEET 1 A 5 LYS A 91 ARG A 99 0 SHEET 2 A 5 LEU A 66 ALA A 71 1 N LEU A 67 O PRO A 94 SHEET 3 A 5 ARG A 119 ASP A 125 1 N VAL A 123 O PHE A 68 SHEET 4 A 5 LEU A 147 ILE A 152 1 O GLY A 149 N LEU A 122 SHEET 5 A 5 CYS A 176 ILE A 181 1 N ILE A 179 O VAL A 150

LINK MG MG A 300 O1 PRP A 221 1555 1555 2.86 LINK MG MG A 300 O2 PRP A 221 1555 1555 2.54 LINK MG MG A 300 O3A PRP A 221 1555 1555 2.63 LINK MG MG A 300 O3B PRP A 221 1555 1555 2.88 LINK MG MG A 300 O HOH A 561 1555 1555 2.57 LINK MG MG A 300 O3 PRP A 221 1555 1555 2.77

SITE 1 AC1 2 PRP A 221 HOH A 561 SITE 1 AC2 9 LEU A 25 LYS A 26 PHE A 34 PHE A 35 SITE 2 AC2 9 THR A 128 ARG A 156 HOH A 508 HOH A 537 SITE 3 AC2 9 HOH A 559 SITE 1 AC3 17 LYS A 26 ALA A 71 TYR A 72 LYS A 73 SITE 2 AC3 17 ARG A 99 LYS A 100 ASP A 124 ASP A 125 SITE 3 AC3 17 VAL A 126 ILE A 127 THR A 128 ALA A 129 SITE 4 AC3 17 GLY A 130 THR A 131 ALA A 132 MG A 300 SITE 5 AC3 17 HOH A 555

CRYST1 47.300 47.300 216.600 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 0.021142 0.000000 0.000000 0.00000

SCALE2 0.000000 0.021142 0.000000 0.00000

SCALE3 0.000000 0.000000 0.004617 0.00000