2O90 - Header Asymmetric Unit

HEADER LYASE 12-DEC-06 2O90

TITLE ATOMIC RESOLUTION CRYSTAL STRUCTURE OF E.COLI TITLE 2 DIHYDRONEOPTERIN ALDOLASE IN COMPLEX WITH NEOPTERIN

COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDRONEOPTERIN ALDOLASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: DHNA; COMPND 5 EC: 4.1.2.25; COMPND 6 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: FOLB; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET17B

KEYWDS DIHYDRONEOPTERIN ALDOLASE, DHNA, NEOPTERIN, MONAPTERIN, 7,8- KEYWDS 2 DIHYDRONEOPTERIN, DRUG DESIGN, ATOMIC RESOLUTION, X-RAY KEYWDS 3 CRYSTALLOGRAPHY, LYASE

EXPDTA X-RAY DIFFRACTION

AUTHOR J.BLASZCZYK,X.JI,H.YAN

REVDAT 2 24-FEB-09 2O90 1 VERSN REVDAT 1 25-DEC-07 2O90 0

JRNL AUTH J.BLASZCZYK,Y.LI,X.JI,H.YAN JRNL TITL ACTIVE SITE ARCHITECTURE OF DIHYDRONEOPTERIN JRNL TITL 2 ALDOLASE FROM ESCHERICHIA COLI JRNL REF TO BE PUBLISHED JRNL REFN

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.07 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.07 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 21.70 REMARK 3 DATA CUTOFF (SIGMA(F)) : 4.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 90.4 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.131 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.130 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.150 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.255 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 2832 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 53895 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.120 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.117 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.137 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.239 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 2390 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 45617 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1001 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 23 REMARK 3 SOLVENT ATOMS : 279 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1176.67 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 547.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 30 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 9680 REMARK 3 NUMBER OF RESTRAINTS : 13545 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.019 REMARK 3 ANGLE DISTANCES (A) : 0.034 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.032 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.090 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.086 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.354 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.006 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.048 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.109 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: FULL-MATRIX LEAST-SQUARES PROCEDURE, REMARK 3 WITH BLOCK OF PARAMETERS SET FOR EACH CYCLE OF ANISOTROPIC REMARK 3 REFINEMENT

REMARK 4 REMARK 4 2O90 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-DEC-06. REMARK 100 THE RCSB ID CODE IS RCSB040838.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 26-APR-03 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X9B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97950 REMARK 200 MONOCHROMATOR : SILICON 111 REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 56733 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.070 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.1 REMARK 200 DATA REDUNDANCY : 9.111 REMARK 200 R MERGE (I) : 0.04300 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 40.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.07 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 64.6 REMARK 200 DATA REDUNDANCY IN SHELL : 6.02 REMARK 200 R MERGE FOR SHELL (I) : 0.30900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1DHN REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.78 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.45 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM FORMATE, TRIS-HCL, PH 8.0, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 292K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y,X,Z REMARK 290 4555 Y,-X,Z REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 11555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 12555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 13555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 14555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 15555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 16555 -Y+1/2,-X+1/2,-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 0.00000 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 0.00000 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 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 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 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 40.59600 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 40.52700 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 40.59600 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 40.52700 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 40.59600 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 40.52700 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 40.59600 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 40.52700 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 40.59600 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 40.52700 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 40.59600 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 40.52700 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 40.59600 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 40.52700 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 40.59600 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 40.59600 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 40.52700 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: OCTAMERIC 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 81.19200 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 350 BIOMT1 3 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 3 -1.000000 0.000000 0.000000 81.19200 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 -1.000000 0.000000 0.000000 81.19200 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 81.19200 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 5 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 5 0.000000 -1.000000 0.000000 81.19200 REMARK 350 BIOMT3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 6 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 6 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 7 0.000000 -1.000000 0.000000 81.19200 REMARK 350 BIOMT2 7 -1.000000 0.000000 0.000000 81.19200 REMARK 350 BIOMT3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 8 -1.000000 0.000000 0.000000 81.19200 REMARK 350 BIOMT2 8 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 8 0.000000 0.000000 -1.000000 0.00000

REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 162 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 242 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 282 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 331 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 341 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 354 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 358 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 375 LIES ON A SPECIAL POSITION.

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 ASN A 116 REMARK 465 ASN A 117 REMARK 465 LEU A 118 REMARK 465 LYS A 119 REMARK 465 GLU A 120 REMARK 465 ASN A 121 REMARK 465 ASN A 122

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 MET A 1 CA - CB - CG ANGL. DEV. = -10.3 DEGREES REMARK 500 MET A 1 CA - CB - CG ANGL. DEV. = -10.3 DEGREES REMARK 500 MET A 1 CA - CB - CG ANGL. DEV. = -10.3 DEGREES REMARK 500 ARG A 68 CA - CB - CG ANGL. DEV. = 13.5 DEGREES REMARK 500 ARG A 68 CD - NE - CZ ANGL. DEV. = 11.1 DEGREES REMARK 500 ARG A 68 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 ARG A 93 NH1 - CZ - NH2 ANGL. DEV. = 8.7 DEGREES REMARK 500 ARG A 93 NH1 - CZ - NH2 ANGL. DEV. = 8.6 DEGREES REMARK 500 ARG A 93 NE - CZ - NH1 ANGL. DEV. = -3.2 DEGREES REMARK 500 ARG A 93 NE - CZ - NH1 ANGL. DEV. = -3.2 DEGREES REMARK 500 ARG A 93 NE - CZ - NH2 ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG A 93 NE - CZ - NH2 ANGL. DEV. = -5.5 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 ASN A 88 49.04 -79.37 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 NEU A 131

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2NM2 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF S.AUREUS DIHYDRONEOPTERIN ALDOLASE IN REMARK 900 COMPLEX WITH NEOPTERIN REMARK 900 RELATED ID: 2NM3 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF S.AUREUS DIHYDRONEOPTERIN ALDOLASE IN REMARK 900 COMPLEX WITH MONAPTERIN REMARK 900 RELATED ID: 1DHN RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF S.AUREUS DIHYDRONEOPTERIN ALDOLASE APO REMARK 900 FORM REMARK 900 RELATED ID: 2DHN RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF S.AUREUS DIHYDRONEOPTERIN ALDOLASE IN REMARK 900 COMPLEX WITH 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN REMARK 900 RELATED ID: 2OAK RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF E.COLI DIHYDRONEOPTERIN ALDOLASE IN REMARK 900 COMPLEX WITH MONAPTERIN REMARK 900 RELATED ID: 2O9M RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF E.COLI DIHYDRONEOPTERIN ALDOLASE IN REMARK 900 COMPLEX WITH 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN

DBREF 2O90 A 1 122 UNP P0AC16 FOLB_ECOLI 1 122

SEQRES 1 A 122 MET ASP ILE VAL PHE ILE GLU GLN LEU SER VAL ILE THR SEQRES 2 A 122 THR ILE GLY VAL TYR ASP TRP GLU GLN THR ILE GLU GLN SEQRES 3 A 122 LYS LEU VAL PHE ASP ILE GLU MET ALA TRP ASP ASN ARG SEQRES 4 A 122 LYS ALA ALA LYS SER ASP ASP VAL ALA ASP CYS LEU SER SEQRES 5 A 122 TYR ALA ASP ILE ALA GLU THR VAL VAL SER HIS VAL GLU SEQRES 6 A 122 GLY ALA ARG PHE ALA LEU VAL GLU ARG VAL ALA GLU GLU SEQRES 7 A 122 VAL ALA GLU LEU LEU LEU ALA ARG PHE ASN SER PRO TRP SEQRES 8 A 122 VAL ARG ILE LYS LEU SER LYS PRO GLY ALA VAL ALA ARG SEQRES 9 A 122 ALA ALA ASN VAL GLY VAL ILE ILE GLU ARG GLY ASN ASN SEQRES 10 A 122 LEU LYS GLU ASN ASN

HET NEU A 131 23

HETNAM NEU L-NEOPTERIN

HETSYN NEU 2-AMINO-6-((1S,2R)-1,2,3-TRIHYDROXYPROPYL)PTERIDIN- HETSYN 2 NEU 4(3H)-ONE

FORMUL 2 NEU C9 H11 N5 O4 FORMUL 3 HOH *271(H2 O)

HELIX 1 1 TYR A 18 ILE A 24 5 7 HELIX 2 2 ASN A 38 ASP A 45 1 8 HELIX 3 3 ASP A 46 CYS A 50 5 5 HELIX 4 4 SER A 52 GLU A 65 1 14 HELIX 5 5 LEU A 71 PHE A 87 1 17

SHEET 1 A 5 ARG A 68 PHE A 69 0 SHEET 2 A 5 ASP A 2 ILE A 15 1 N THR A 14 O PHE A 69 SHEET 3 A 5 GLN A 26 TRP A 36 -1 O LEU A 28 N VAL A 11 SHEET 4 A 5 VAL A 92 SER A 97 -1 O SER A 97 N VAL A 29 SHEET 5 A 5 GLY A 109 ARG A 114 -1 O VAL A 110 N LEU A 96

SITE 1 AC1 18 GLY A 16 VAL A 17 TYR A 18 GLU A 21 SITE 2 AC1 18 CYS A 50 LEU A 51 SER A 52 TYR A 53 SITE 3 AC1 18 LEU A 71 VAL A 72 GLU A 73 LYS A 98 SITE 4 AC1 18 ALA A 101 HOH A 145 HOH A 195 HOH A 258 SITE 5 AC1 18 HOH A 320 HOH A 334

CRYST1 81.192 81.192 81.054 90.00 90.00 90.00 I 4 2 2 16

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 0.012316 0.000000 0.000000 0.00000

SCALE2 0.000000 0.012316 0.000000 0.00000

SCALE3 0.000000 0.000000 0.012337 0.00000