HEADER TRANSFERASE 01-MAR-06 2G86 TITLE L. CASEI THYMIDYLATE SYNTHASE Y261F IN COMPLEX WITH SUBSTRATE, DUMP COMPND MOL_ID: 1; COMPND 2 MOLECULE: THYMIDYLATE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TS, TSASE; COMPND 5 EC: 2.1.1.45; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: LACTOBACILLUS CASEI; SOURCE 3 ORGANISM_TAXID: 1582; SOURCE 4 GENE: THYA; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: CHI2913RECA; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PSCTS9 KEYWDS DUMP-BINDING RESIDUE, DUMP COMPLEX, THYMIDYLATE SYNTHASE MUTANT, KEYWDS 2 TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.S.FINER-MOORE,R.M.STROUD REVDAT 6 14-FEB-24 2G86 1 REMARK REVDAT 5 20-OCT-21 2G86 1 REMARK SEQADV REVDAT 4 18-OCT-17 2G86 1 REMARK REVDAT 3 13-JUL-11 2G86 1 VERSN REVDAT 2 20-MAY-08 2G86 1 JRNL VERSN REVDAT 1 14-MAR-06 2G86 0 JRNL AUTH Z.NEWBY,T.T.LEE,R.J.MORSE,Y.LIU,L.LIU,P.VENKATRAMAN, JRNL AUTH 2 D.V.SANTI,J.S.FINER-MOORE,R.M.STROUD JRNL TITL THE ROLE OF PROTEIN DYNAMICS IN THYMIDYLATE SYNTHASE JRNL TITL 2 CATALYSIS: VARIANTS OF CONSERVED 2'-DEOXYURIDINE JRNL TITL 3 5'-MONOPHOSPHATE (DUMP)-BINDING TYR-261 JRNL REF BIOCHEMISTRY V. 45 7415 2006 JRNL REFN ISSN 0006-2960 JRNL PMID 16768437 JRNL DOI 10.1021/BI060152S REMARK 2 REMARK 2 RESOLUTION. 2.40 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) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.40 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 2187162.820 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 91.5 REMARK 3 NUMBER OF REFLECTIONS : 16639 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) : 0.174 REMARK 3 FREE R VALUE : 0.233 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1672 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 87.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2317 REMARK 3 BIN R VALUE (WORKING SET) : 0.2150 REMARK 3 BIN FREE R VALUE : 0.3240 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.70 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 250 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.021 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2592 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 REMARK 3 SOLVENT ATOMS : 91 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 42.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.09000 REMARK 3 B22 (A**2) : -1.09000 REMARK 3 B33 (A**2) : 2.17000 REMARK 3 B12 (A**2) : 1.23000 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) : 0.23 REMARK 3 ESD FROM SIGMAA (A) : 0.22 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) : 0.32 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.36 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.022 REMARK 3 BOND ANGLES (DEGREES) : 2.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 26.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 2.090 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) : 1.340 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.300 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.960 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 4.060 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.35 REMARK 3 BSOL : 56.88 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 : PARAMED.LIG REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : UMP_PO4.TOPO REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2G86 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-MAR-06. REMARK 100 THE DEPOSITION ID IS D_1000036809. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JAN-96 REMARK 200 TEMPERATURE (KELVIN) : 298. REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54178 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS II REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : CCP4 (TRUNCATE) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16639 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 39.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.5 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 17.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 87.5 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: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.15 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.94 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: VAPOR DIFFUSION AGAINST 20MM KPO4 REMARK 280 BUFFER; PROTEIN SOLUTION IN SAME BUFFER WITH 15-20MM AMMONIUM REMARK 280 SULFATE, DTT, 38 MMDUMP, PH 7.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 REMARK 290 7555 Y,X,-Z+1/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+2/3 REMARK 290 10555 -Y,-X,-Z+5/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+1/6 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 80.60000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 161.20000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 120.90000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 201.50000 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 40.30000 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 80.60000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 161.20000 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 201.50000 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 120.90000 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 40.30000 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 300 REMARK: BIOLOGICAL ASSEMBLY IS A DIMER. SECOND HALF OF THE DIMER IS REMARK 300 GENERATED BY THE CRYSTALLOGRAPHIC TWO-FOLD AXIS ACCORDING TO THE REMARK 300 FOLLOWING TRANSFORMATION: -X+Y, Y, -1/2-Z 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: 5850 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 26400 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -22.0 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 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -120.90000 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 PRO A 21 C - N - CA ANGL. DEV. = -10.1 DEGREES REMARK 500 ARG A 37 NE - CZ - NH1 ANGL. DEV. = -6.5 DEGREES REMARK 500 ARG A 37 NE - CZ - NH2 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 68 CB - CG - OD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 LEU A 201 CA - CB - CG ANGL. DEV. = 23.9 DEGREES REMARK 500 ARG A 277 NE - CZ - NH1 ANGL. DEV. = -6.0 DEGREES REMARK 500 ARG A 277 NE - CZ - NH2 ANGL. DEV. = 5.4 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 ASP A 15 72.66 -110.63 REMARK 500 GLU A 16 -15.61 172.14 REMARK 500 ARG A 23 5.09 -41.17 REMARK 500 THR A 24 -68.92 -133.81 REMARK 500 HIS A 25 -19.63 150.93 REMARK 500 LYS A 92 30.33 -96.40 REMARK 500 MET A 101 -0.06 44.08 REMARK 500 ARG A 107 8.99 -64.82 REMARK 500 ASP A 111 112.23 -165.81 REMARK 500 ALA A 115 -10.97 -42.72 REMARK 500 ALA A 152 55.99 -155.89 REMARK 500 ASP A 159 -156.79 -91.79 REMARK 500 ASN A 303 41.07 70.05 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 UMP A 317 DBREF 2G86 A 1 316 UNP P00469 TYSY_LACCA 1 316 SEQADV 2G86 PHE A 261 UNP P00469 TYR 261 ENGINEERED MUTATION SEQRES 1 A 316 MET LEU GLU GLN PRO TYR LEU ASP LEU ALA LYS LYS VAL SEQRES 2 A 316 LEU ASP GLU GLY HIS PHE LYS PRO ASP ARG THR HIS THR SEQRES 3 A 316 GLY THR TYR SER ILE PHE GLY HIS GLN MET ARG PHE ASP SEQRES 4 A 316 LEU SER LYS GLY PHE PRO LEU LEU THR THR LYS LYS VAL SEQRES 5 A 316 PRO PHE GLY LEU ILE LYS SER GLU LEU LEU TRP PHE LEU SEQRES 6 A 316 HIS GLY ASP THR ASN ILE ARG PHE LEU LEU GLN HIS ARG SEQRES 7 A 316 ASN HIS ILE TRP ASP GLU TRP ALA PHE GLU LYS TRP VAL SEQRES 8 A 316 LYS SER ASP GLU TYR HIS GLY PRO ASP MET THR ASP PHE SEQRES 9 A 316 GLY HIS ARG SER GLN LYS ASP PRO GLU PHE ALA ALA VAL SEQRES 10 A 316 TYR HIS GLU GLU MET ALA LYS PHE ASP ASP ARG VAL LEU SEQRES 11 A 316 HIS ASP ASP ALA PHE ALA ALA LYS TYR GLY ASP LEU GLY SEQRES 12 A 316 LEU VAL TYR GLY SER GLN TRP ARG ALA TRP HIS THR SER SEQRES 13 A 316 LYS GLY ASP THR ILE ASP GLN LEU GLY ASP VAL ILE GLU SEQRES 14 A 316 GLN ILE LYS THR HIS PRO TYR SER ARG ARG LEU ILE VAL SEQRES 15 A 316 SER ALA TRP ASN PRO GLU ASP VAL PRO THR MET ALA LEU SEQRES 16 A 316 PRO PRO CYS HIS THR LEU TYR GLN PHE TYR VAL ASN ASP SEQRES 17 A 316 GLY LYS LEU SER LEU GLN LEU TYR GLN ARG SER ALA ASP SEQRES 18 A 316 ILE PHE LEU GLY VAL PRO PHE ASN ILE ALA SER TYR ALA SEQRES 19 A 316 LEU LEU THR HIS LEU VAL ALA HIS GLU CYS GLY LEU GLU SEQRES 20 A 316 VAL GLY GLU PHE ILE HIS THR PHE GLY ASP ALA HIS LEU SEQRES 21 A 316 PHE VAL ASN HIS LEU ASP GLN ILE LYS GLU GLN LEU SER SEQRES 22 A 316 ARG THR PRO ARG PRO ALA PRO THR LEU GLN LEU ASN PRO SEQRES 23 A 316 ASP LYS HIS ASP ILE PHE ASP PHE ASP MET LYS ASP ILE SEQRES 24 A 316 LYS LEU LEU ASN TYR ASP PRO TYR PRO ALA ILE LYS ALA SEQRES 25 A 316 PRO VAL ALA VAL HET UMP A 317 20 HETNAM UMP 2'-DEOXYURIDINE 5'-MONOPHOSPHATE HETSYN UMP DUMP FORMUL 2 UMP C9 H13 N2 O8 P FORMUL 3 HOH *91(H2 O) HELIX 1 1 GLU A 3 ASP A 15 1 13 HELIX 2 2 SER A 41 GLY A 43 5 3 HELIX 3 3 PRO A 53 HIS A 66 1 14 HELIX 4 4 ILE A 71 GLN A 76 1 6 HELIX 5 5 TRP A 82 LYS A 92 1 11 HELIX 6 6 GLY A 105 GLN A 109 5 5 HELIX 7 7 PHE A 114 ASP A 132 1 19 HELIX 8 8 ASP A 132 GLY A 140 1 9 HELIX 9 9 VAL A 145 ALA A 152 1 8 HELIX 10 10 ASP A 162 HIS A 174 1 13 HELIX 11 11 ASP A 189 MET A 193 5 5 HELIX 12 12 GLY A 225 CYS A 244 1 20 HELIX 13 13 HIS A 264 SER A 273 1 10 HELIX 14 14 ASP A 290 PHE A 294 5 5 HELIX 15 15 ASP A 295 LYS A 297 5 3 SHEET 1 A 6 HIS A 18 LYS A 20 0 SHEET 2 A 6 THR A 28 ASP A 39 -1 O SER A 30 N HIS A 18 SHEET 3 A 6 GLU A 247 PHE A 261 -1 O HIS A 253 N MET A 36 SHEET 4 A 6 LYS A 210 ASP A 221 1 N LEU A 213 O ILE A 252 SHEET 5 A 6 HIS A 199 ASN A 207 -1 N TYR A 205 O SER A 212 SHEET 6 A 6 ILE A 181 SER A 183 -1 N VAL A 182 O TYR A 202 SHEET 1 B 2 TRP A 153 HIS A 154 0 SHEET 2 B 2 THR A 160 ILE A 161 -1 O ILE A 161 N TRP A 153 SHEET 1 C 2 THR A 281 LEU A 284 0 SHEET 2 C 2 ILE A 299 LEU A 302 -1 O LEU A 302 N THR A 281 SITE 1 AC1 16 ARG A 23 ARG A 178 ARG A 179 LEU A 195 SITE 2 AC1 16 CYS A 198 HIS A 199 GLN A 217 ARG A 218 SITE 3 AC1 16 SER A 219 ALA A 220 ASP A 221 ASN A 229 SITE 4 AC1 16 HIS A 259 PHE A 261 HOH A 329 HOH A 347 CRYST1 78.550 78.550 241.800 90.00 90.00 120.00 P 61 2 2 12 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 0.012731 0.007350 0.000000 0.00000 SCALE2 0.000000 0.014700 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004136 0.00000