HEADER OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR 18-MAY-11 3S3V TITLE HUMAN DIHYDROFOLATE REDUCTASE Q35K/N64F DOUBLE MUTANT BINARY COMPLEX TITLE 2 WITH TRIMETHOPRIM COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROFOLATE REDUCTASE; COMPND 3 CHAIN: A; COMPND 4 EC: 1.5.1.3; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: DHFR, PDS5; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PDS5 KEYWDS NOVEL SECOND BINDING SITE, OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR KEYWDS 2 COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR V.CODY,J.PACE,J.PIRAINO,S.F.QUEENER REVDAT 2 28-FEB-24 3S3V 1 REMARK SEQADV REVDAT 1 28-SEP-11 3S3V 0 JRNL AUTH V.CODY,J.PACE,J.PIRAINO,S.F.QUEENER JRNL TITL CRYSTALLOGRAPHIC ANALYSIS REVEALS A NOVEL SECOND BINDING JRNL TITL 2 SITE FOR TRIMETHOPRIM IN ACTIVE SITE DOUBLE MUTANTS OF HUMAN JRNL TITL 3 DIHYDROFOLATE REDUCTASE. JRNL REF J.STRUCT.BIOL. V. 176 52 2011 JRNL REFN ISSN 1047-8477 JRNL PMID 21684339 JRNL DOI 10.1016/J.JSB.2011.06.001 REMARK 2 REMARK 2 RESOLUTION. 1.53 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0088 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.53 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 53.68 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.5 REMARK 3 NUMBER OF REFLECTIONS : 29446 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 + TEST SET) : 0.192 REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : 0.219 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1539 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.53 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.57 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2237 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.75 REMARK 3 BIN R VALUE (WORKING SET) : 0.2010 REMARK 3 BIN FREE R VALUE SET COUNT : 117 REMARK 3 BIN FREE R VALUE : 0.2260 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1505 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 67 REMARK 3 SOLVENT ATOMS : 151 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 16.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.02 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.084 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.047 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.229 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.940 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.925 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1635 ; 0.036 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2216 ; 2.883 ; 2.020 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 191 ; 6.522 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 72 ;35.358 ;24.583 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 292 ;16.252 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 8 ;11.054 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 226 ; 0.201 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1234 ; 0.015 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 947 ; 1.643 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1544 ; 2.637 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 688 ; 3.931 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 672 ; 5.481 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 3S3V COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-JUN-11. REMARK 100 THE DEPOSITION ID IS D_1000065727. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-AUG-09 REMARK 200 TEMPERATURE (KELVIN) : 113 REMARK 200 PH : 6.9 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.975 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30987 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.530 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.5 REMARK 200 DATA REDUNDANCY : 2.200 REMARK 200 R MERGE (I) : 0.09000 REMARK 200 R SYM (I) : 0.08000 REMARK 200 FOR THE DATA SET : 6.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.53 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.61 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : 2.20 REMARK 200 R MERGE FOR SHELL (I) : 0.10000 REMARK 200 R SYM FOR SHELL (I) : 0.07900 REMARK 200 FOR SHELL : 5.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.54 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM K2HPO4, 60% AS, 3% ETOH, PH REMARK 280 6.9, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 287K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 X+2/3,Y+1/3,Z+1/3 REMARK 290 5555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 6555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 7555 X+1/3,Y+2/3,Z+2/3 REMARK 290 8555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 9555 -X+Y+1/3,-X+2/3,Z+2/3 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 0.00000 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 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 42.34400 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 24.44732 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 26.24767 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 42.34400 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 24.44732 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 26.24767 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 42.34400 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 24.44732 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 26.24767 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 48.89464 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 52.49533 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 48.89464 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 52.49533 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 48.89464 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 52.49533 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 7820 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 29200 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -262.0 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 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 O4 SO4 A 192 LIES ON A SPECIAL POSITION. 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 CD2 HIS A 127 O HOH A 339 1.90 REMARK 500 NE2 HIS A 127 O HOH A 339 1.97 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 OE1 GLU A 161 O HOH A 244 5555 1.42 REMARK 500 CD GLU A 161 O HOH A 244 5555 1.50 REMARK 500 CE MET A 14 O HOH A 341 6555 1.73 REMARK 500 OE2 GLU A 161 O HOH A 244 5555 2.17 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 CYS A 6 CB CYS A 6 SG 0.106 REMARK 500 TYR A 33 CE2 TYR A 33 CD2 0.094 REMARK 500 LYS A 35 CE LYS A 35 NZ -0.173 REMARK 500 LYS A 55 CD LYS A 55 CE 0.199 REMARK 500 LYS A 55 CE LYS A 55 NZ 0.204 REMARK 500 ARG A 65 CB ARG A 65 CG -0.172 REMARK 500 GLU A 78 CG GLU A 78 CD 0.092 REMARK 500 MET A 111 SD MET A 111 CE -0.463 REMARK 500 LYS A 132 CD LYS A 132 CE 0.184 REMARK 500 GLU A 154 CB GLU A 154 CG 0.130 REMARK 500 TYR A 177 CG TYR A 177 CD2 0.086 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 LEU A 22 CA - CB - CG ANGL. DEV. = -21.8 DEGREES REMARK 500 LYS A 35 CD - CE - NZ ANGL. DEV. = -20.7 DEGREES REMARK 500 LYS A 55 CD - CE - NZ ANGL. DEV. = 24.2 DEGREES REMARK 500 ARG A 65 CG - CD - NE ANGL. DEV. = 14.5 DEGREES REMARK 500 ARG A 65 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 MET A 139 CG - SD - CE ANGL. DEV. = -38.3 DEGREES REMARK 500 THR A 146 CA - CB - CG2 ANGL. DEV. = 9.1 DEGREES REMARK 500 ASP A 168 CB - CG - OD2 ANGL. DEV. = 7.1 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 110 -101.14 -94.91 REMARK 500 MET A 139 49.19 -89.67 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 TOP A 187 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 188 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 189 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 190 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 191 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 192 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TOP A 193 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3N0H RELATED DB: PDB REMARK 900 HUMAN DHFR Q35S/N64F DOUBLE MUTANT BINARY COMPLEX WITH TRIMETHOPRIM DBREF 3S3V A 1 186 UNP P00374 DYR_HUMAN 2 187 SEQADV 3S3V LYS A 35 UNP P00374 GLN 36 ENGINEERED MUTATION SEQADV 3S3V PHE A 64 UNP P00374 ASN 65 ENGINEERED MUTATION SEQRES 1 A 186 VAL GLY SER LEU ASN CYS ILE VAL ALA VAL SER GLN ASN SEQRES 2 A 186 MET GLY ILE GLY LYS ASN GLY ASP LEU PRO TRP PRO PRO SEQRES 3 A 186 LEU ARG ASN GLU PHE ARG TYR PHE LYS ARG MET THR THR SEQRES 4 A 186 THR SER SER VAL GLU GLY LYS GLN ASN LEU VAL ILE MET SEQRES 5 A 186 GLY LYS LYS THR TRP PHE SER ILE PRO GLU LYS PHE ARG SEQRES 6 A 186 PRO LEU LYS GLY ARG ILE ASN LEU VAL LEU SER ARG GLU SEQRES 7 A 186 LEU LYS GLU PRO PRO GLN GLY ALA HIS PHE LEU SER ARG SEQRES 8 A 186 SER LEU ASP ASP ALA LEU LYS LEU THR GLU GLN PRO GLU SEQRES 9 A 186 LEU ALA ASN LYS VAL ASP MET VAL TRP ILE VAL GLY GLY SEQRES 10 A 186 SER SER VAL TYR LYS GLU ALA MET ASN HIS PRO GLY HIS SEQRES 11 A 186 LEU LYS LEU PHE VAL THR ARG ILE MET GLN ASP PHE GLU SEQRES 12 A 186 SER ASP THR PHE PHE PRO GLU ILE ASP LEU GLU LYS TYR SEQRES 13 A 186 LYS LEU LEU PRO GLU TYR PRO GLY VAL LEU SER ASP VAL SEQRES 14 A 186 GLN GLU GLU LYS GLY ILE LYS TYR LYS PHE GLU VAL TYR SEQRES 15 A 186 GLU LYS ASN ASP HET TOP A 187 21 HET SO4 A 188 5 HET SO4 A 189 5 HET SO4 A 190 5 HET SO4 A 191 5 HET SO4 A 192 5 HET TOP A 193 21 HETNAM TOP TRIMETHOPRIM HETNAM SO4 SULFATE ION FORMUL 2 TOP 2(C14 H18 N4 O3) FORMUL 3 SO4 5(O4 S 2-) FORMUL 9 HOH *151(H2 O) HELIX 1 1 LEU A 27 THR A 40 1 14 HELIX 2 2 LYS A 54 ILE A 60 1 7 HELIX 3 3 PRO A 61 ARG A 65 5 5 HELIX 4 4 SER A 92 THR A 100 1 9 HELIX 5 5 GLY A 117 HIS A 127 1 11 SHEET 1 A 8 PHE A 88 SER A 90 0 SHEET 2 A 8 ILE A 71 LEU A 75 1 N VAL A 74 O PHE A 88 SHEET 3 A 8 GLN A 47 GLY A 53 1 N VAL A 50 O ILE A 71 SHEET 4 A 8 VAL A 109 ILE A 114 1 O TRP A 113 N LEU A 49 SHEET 5 A 8 LEU A 4 VAL A 10 1 N ASN A 5 O ILE A 114 SHEET 6 A 8 HIS A 130 ILE A 138 1 O PHE A 134 N CYS A 6 SHEET 7 A 8 ILE A 175 ASN A 185 -1 O LYS A 178 N ARG A 137 SHEET 8 A 8 LYS A 157 LEU A 158 -1 N LYS A 157 O GLU A 183 SHEET 1 B 8 PHE A 88 SER A 90 0 SHEET 2 B 8 ILE A 71 LEU A 75 1 N VAL A 74 O PHE A 88 SHEET 3 B 8 GLN A 47 GLY A 53 1 N VAL A 50 O ILE A 71 SHEET 4 B 8 VAL A 109 ILE A 114 1 O TRP A 113 N LEU A 49 SHEET 5 B 8 LEU A 4 VAL A 10 1 N ASN A 5 O ILE A 114 SHEET 6 B 8 HIS A 130 ILE A 138 1 O PHE A 134 N CYS A 6 SHEET 7 B 8 ILE A 175 ASN A 185 -1 O LYS A 178 N ARG A 137 SHEET 8 B 8 GLN A 170 GLU A 172 -1 N GLN A 170 O TYR A 177 SHEET 1 C 2 GLY A 15 GLY A 17 0 SHEET 2 C 2 THR A 146 PHE A 147 -1 O THR A 146 N ILE A 16 CISPEP 1 ARG A 65 PRO A 66 0 -14.33 CISPEP 2 GLY A 116 GLY A 117 0 7.32 SITE 1 AC1 13 ILE A 7 VAL A 8 ALA A 9 GLU A 30 SITE 2 AC1 13 PHE A 31 PHE A 34 LYS A 35 ILE A 60 SITE 3 AC1 13 LEU A 67 VAL A 115 THR A 136 TOP A 193 SITE 4 AC1 13 HOH A 243 SITE 1 AC2 8 GLY A 53 LYS A 54 LYS A 55 THR A 56 SITE 2 AC2 8 GLY A 117 VAL A 120 HOH A 262 HOH A 264 SITE 1 AC3 6 LYS A 54 SER A 76 ARG A 77 GLU A 78 SITE 2 AC3 6 HOH A 214 HOH A 340 SITE 1 AC4 5 GLU A 143 LEU A 166 SER A 167 HOH A 302 SITE 2 AC4 5 HOH A 326 SITE 1 AC5 3 LYS A 63 PHE A 64 TOP A 193 SITE 1 AC6 3 LYS A 63 TOP A 193 HOH A 295 SITE 1 AC7 10 ASP A 21 PHE A 31 SER A 59 PRO A 61 SITE 2 AC7 10 LYS A 63 PHE A 64 TOP A 187 SO4 A 191 SITE 3 AC7 10 SO4 A 192 HOH A 325 CRYST1 84.688 84.688 78.743 90.00 90.00 120.00 H 3 9 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 0.011808 0.006817 0.000000 0.00000 SCALE2 0.000000 0.013635 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012700 0.00000