HEADER LIGASE 21-JUL-04 1U3G TITLE STRUCTURAL AND FUNCTIONAL CHARACTERIZATION OF A 5,10- TITLE 2 METHENYLTETRAHYDROFOLATE SYNTHETASE FROM MYCOPLASMA PNEUMONIAE (GI: TITLE 3 13508087) COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5,10-METHENYLTETRAHYDROFOLATE SYNTHETASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: H91_ORF164, HYPOTHETICAL PROTEIN MG245 HOMOLOG; COMPND 5 EC: 6.3.3.2; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOPLASMA PNEUMONIAE; SOURCE 3 ORGANISM_TAXID: 2104; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS MYCOPLASMA PNEUMONIAE; 5, 10-METHENYLTETRAHYDROFOLATE SYNTHETASE; 5- KEYWDS 2 FORMYLTETRAHYDROFOLATE CYCLO-LIGASE; MTHFS; ATP BINDING; LIGASE; KEYWDS 3 STRUCTURAL GENOMICS; BSGC STRUCTURE FUNDED BY NIH; PROTEIN STRUCTURE KEYWDS 4 INITIATIVE; PSI; BERKELEY STRUCTURAL GENOMICS CENTER, LIGASE EXPDTA X-RAY DIFFRACTION AUTHOR S.CHEN,A.F.YAKUNIN,M.PROUDFOOT,R.KIM,S.-H.KIM,BERKELEY STRUCTURAL AUTHOR 2 GENOMICS CENTER (BSGC) REVDAT 4 14-FEB-24 1U3G 1 REMARK SEQADV LINK REVDAT 3 24-FEB-09 1U3G 1 VERSN REVDAT 2 21-DEC-04 1U3G 1 JRNL REVDAT 1 07-DEC-04 1U3G 0 JRNL AUTH S.CHEN,D.H.SHIN,R.PUFAN,R.KIM,S.-H.KIM JRNL TITL CRYSTAL STRUCTURE OF METHENYLTETRAHYDROFOLATE SYNTHETASE JRNL TITL 2 FROM MYCOPLASMA PNEUMONIAE (GI: 13508087) AT 2.2 A JRNL TITL 3 RESOLUTION JRNL REF PROTEINS V. 56 839 2004 JRNL REFN ISSN 0887-3585 JRNL PMID 15281135 JRNL DOI 10.1002/PROT.20214 REMARK 2 REMARK 2 RESOLUTION. 2.50 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) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 43.56 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 117297.250 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 88.8 REMARK 3 NUMBER OF REFLECTIONS : 5868 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) : 0.208 REMARK 3 FREE R VALUE : 0.269 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.700 REMARK 3 FREE R VALUE TEST SET COUNT : 629 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.011 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) : 2.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.66 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 74.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 712 REMARK 3 BIN R VALUE (WORKING SET) : 0.2440 REMARK 3 BIN FREE R VALUE : 0.3460 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 11.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 93 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.036 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1361 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 67 REMARK 3 SOLVENT ATOMS : 81 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 9.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.00 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.53000 REMARK 3 B22 (A**2) : 2.25000 REMARK 3 B33 (A**2) : -3.78000 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) : 0.27 REMARK 3 ESD FROM SIGMAA (A) : 0.27 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) : 0.39 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.40 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.940 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) : 1.360 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.260 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 4.340 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.510 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.30 REMARK 3 BSOL : 25.91 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 : ION.PARAM REMARK 3 PARAMETER FILE 4 : ADP.PAR REMARK 3 PARAMETER FILE 5 : THF.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 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : ADP.TO REMARK 3 TOPOLOGY FILE 5 : THF.TOP REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1U3G COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-AUG-04. REMARK 100 THE DEPOSITION ID IS D_1000023196. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-APR-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : SYNCHROTRON REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6569 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 500.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.11 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30 MG/ML PROTEIN, 20% POLYETHYLENE REMARK 280 GLYCOL 4000, 5 MM ADENOSINE TRIPHOSPHATE (ATP), 10 MM 5- REMARK 280 FORMYLTETRAHYDROFOLATE , PH 7, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 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 -X+1/2,Y+1/2,-Z 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 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 -1.000000 0.000000 0.000000 25.46250 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 42.05300 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.46250 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 42.05300 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 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: MONOMERIC 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 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 -24 REMARK 465 GLY A -23 REMARK 465 SER A -22 REMARK 465 SER A -21 REMARK 465 HIS A -20 REMARK 465 HIS A -19 REMARK 465 HIS A -18 REMARK 465 HIS A -17 REMARK 465 HIS A -16 REMARK 465 HIS A -15 REMARK 465 ASP A -14 REMARK 465 TYR A -13 REMARK 465 ASP A -12 REMARK 465 ILE A -11 REMARK 465 PRO A -10 REMARK 465 THR A -9 REMARK 465 THR A -8 REMARK 465 GLU A -7 REMARK 465 ASN A -6 REMARK 465 LEU A -5 REMARK 465 TYR A -4 REMARK 465 PHE A -3 REMARK 465 GLN A -2 REMARK 465 GLY A -1 REMARK 465 HIS A 0 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 2 109.38 57.48 REMARK 500 PRO A 39 7.37 -68.18 REMARK 500 LYS A 40 64.75 -159.79 REMARK 500 PRO A 41 62.44 -69.58 REMARK 500 LEU A 48 -156.70 -118.07 REMARK 500 PRO A 51 132.74 -36.90 REMARK 500 ILE A 52 -105.11 -123.70 REMARK 500 LYS A 53 61.73 -56.52 REMARK 500 SER A 80 -71.93 -123.59 REMARK 500 ASP A 81 10.07 179.97 REMARK 500 THR A 82 -60.80 -102.48 REMARK 500 ASP A 88 -165.85 -108.68 REMARK 500 LEU A 127 4.64 -54.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 THF A 501 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 401 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 124 OD2 REMARK 620 2 ASP A 154 OD1 107.0 REMARK 620 3 ADP A 301 O3B 65.9 166.8 REMARK 620 4 ADP A 301 O1A 85.0 90.3 78.2 REMARK 620 5 HOH A 662 O 151.1 101.9 85.7 94.9 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ADP A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THF A 501 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1U3F RELATED DB: PDB REMARK 900 RELATED ID: BSGCAIR30461 RELATED DB: TARGETDB DBREF 1U3G A 1 164 UNP P75430 Y348_MYCPN 1 164 SEQADV 1U3G MET A -24 UNP P75430 CLONING ARTIFACT SEQADV 1U3G GLY A -23 UNP P75430 CLONING ARTIFACT SEQADV 1U3G SER A -22 UNP P75430 CLONING ARTIFACT SEQADV 1U3G SER A -21 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A -20 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A -19 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A -18 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A -17 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A -16 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A -15 UNP P75430 CLONING ARTIFACT SEQADV 1U3G ASP A -14 UNP P75430 CLONING ARTIFACT SEQADV 1U3G TYR A -13 UNP P75430 CLONING ARTIFACT SEQADV 1U3G ASP A -12 UNP P75430 CLONING ARTIFACT SEQADV 1U3G ILE A -11 UNP P75430 CLONING ARTIFACT SEQADV 1U3G PRO A -10 UNP P75430 CLONING ARTIFACT SEQADV 1U3G THR A -9 UNP P75430 CLONING ARTIFACT SEQADV 1U3G THR A -8 UNP P75430 CLONING ARTIFACT SEQADV 1U3G GLU A -7 UNP P75430 CLONING ARTIFACT SEQADV 1U3G ASN A -6 UNP P75430 CLONING ARTIFACT SEQADV 1U3G LEU A -5 UNP P75430 CLONING ARTIFACT SEQADV 1U3G TYR A -4 UNP P75430 CLONING ARTIFACT SEQADV 1U3G PHE A -3 UNP P75430 CLONING ARTIFACT SEQADV 1U3G GLN A -2 UNP P75430 CLONING ARTIFACT SEQADV 1U3G GLY A -1 UNP P75430 CLONING ARTIFACT SEQADV 1U3G HIS A 0 UNP P75430 CLONING ARTIFACT SEQRES 1 A 189 MET GLY SER SER HIS HIS HIS HIS HIS HIS ASP TYR ASP SEQRES 2 A 189 ILE PRO THR THR GLU ASN LEU TYR PHE GLN GLY HIS MET SEQRES 3 A 189 ASP LYS ASN ALA LEU ARG LYS GLN ILE LEU GLN LYS ARG SEQRES 4 A 189 MET ALA LEU SER THR ILE GLU LYS SER HIS LEU ASP GLN SEQRES 5 A 189 LYS ILE ASN GLN LYS LEU VAL ALA PHE LEU THR PRO LYS SEQRES 6 A 189 PRO CYS ILE LYS THR ILE ALA LEU TYR GLU PRO ILE LYS SEQRES 7 A 189 ASN GLU VAL THR PHE VAL ASP PHE PHE PHE GLU PHE LEU SEQRES 8 A 189 LYS ILE ASN GLN ILE ARG ALA VAL TYR PRO LYS VAL ILE SEQRES 9 A 189 SER ASP THR GLU ILE ILE PHE ILE ASP GLN GLU THR ASN SEQRES 10 A 189 THR PHE GLU PRO ASN GLN ILE ASP CYS PHE LEU ILE PRO SEQRES 11 A 189 LEU VAL GLY PHE ASN LYS ASP ASN TYR ARG LEU GLY PHE SEQRES 12 A 189 GLY LYS GLY TYR TYR ASP ARG TYR LEU MET GLN LEU THR SEQRES 13 A 189 ARG GLN GLN PRO LYS ILE GLY ILE ALA TYR SER PHE GLN SEQRES 14 A 189 LYS GLY ASP PHE LEU ALA ASP PRO TRP ASP VAL GLN LEU SEQRES 15 A 189 ASP LEU ILE ILE ASN ASP GLU HET PO4 A 201 5 HET MG A 401 1 HET ADP A 301 27 HET THF A 501 34 HETNAM PO4 PHOSPHATE ION HETNAM MG MAGNESIUM ION HETNAM ADP ADENOSINE-5'-DIPHOSPHATE HETNAM THF 5-HYDROXYMETHYLENE-6-HYDROFOLIC ACID FORMUL 2 PO4 O4 P 3- FORMUL 3 MG MG 2+ FORMUL 4 ADP C10 H15 N5 O10 P2 FORMUL 5 THF C20 H23 N7 O7 FORMUL 6 HOH *81(H2 O) HELIX 1 1 ASP A 2 ALA A 16 1 15 HELIX 2 2 SER A 18 THR A 38 1 21 HELIX 3 3 VAL A 59 ILE A 68 1 10 HELIX 4 4 GLU A 95 ILE A 99 5 5 HELIX 5 5 GLY A 121 LEU A 127 1 7 HELIX 6 6 TYR A 141 LYS A 145 5 5 SHEET 1 A 7 THR A 93 PHE A 94 0 SHEET 2 A 7 ILE A 84 ILE A 87 -1 N PHE A 86 O PHE A 94 SHEET 3 A 7 ARG A 72 VAL A 78 -1 N LYS A 77 O ILE A 85 SHEET 4 A 7 THR A 45 ALA A 47 1 N ILE A 46 O ARG A 72 SHEET 5 A 7 CYS A 101 PRO A 105 1 O LEU A 103 N ALA A 47 SHEET 6 A 7 LYS A 136 ILE A 139 1 O ILE A 139 N ILE A 104 SHEET 7 A 7 LEU A 159 ILE A 161 1 O LEU A 159 N GLY A 138 SHEET 1 B 2 GLY A 108 PHE A 109 0 SHEET 2 B 2 ARG A 115 LEU A 116 -1 O LEU A 116 N GLY A 108 LINK OD2 ASP A 124 MG MG A 401 1555 1555 2.49 LINK OD1 ASP A 154 MG MG A 401 1555 1555 2.41 LINK O3B ADP A 301 MG MG A 401 1555 1555 2.54 LINK O1A ADP A 301 MG MG A 401 1555 1555 2.63 LINK MG MG A 401 O HOH A 662 1555 1555 2.29 SITE 1 AC1 11 ARG A 115 GLY A 117 PHE A 118 GLY A 119 SITE 2 AC1 11 LYS A 120 GLY A 121 TYR A 122 TYR A 123 SITE 3 AC1 11 ADP A 301 THF A 501 HOH A 613 SITE 1 AC2 5 LYS A 3 ASP A 124 ASP A 154 ADP A 301 SITE 2 AC2 5 HOH A 662 SITE 1 AC3 16 LYS A 3 ARG A 7 GLY A 117 PHE A 118 SITE 2 AC3 16 GLY A 119 LYS A 120 GLY A 121 ASP A 124 SITE 3 AC3 16 ARG A 125 MET A 128 TRP A 153 ASP A 154 SITE 4 AC3 16 PO4 A 201 MG A 401 HOH A 613 HOH A 662 SITE 1 AC4 12 TYR A 49 GLU A 50 ILE A 52 GLU A 55 SITE 2 AC4 12 PRO A 76 PRO A 105 ARG A 115 PHE A 118 SITE 3 AC4 12 TYR A 123 PO4 A 201 HOH A 608 HOH A 670 CRYST1 50.925 84.106 41.615 90.00 90.00 90.00 P 21 21 2 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 0.019637 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011890 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024030 0.00000