HEADER OXIDOREDUCTASE/INHIBITOR 25-JAN-13 4IXE TITLE PCDHFR-NADPH-270 COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROFOLATE REDUCTASE; COMPND 3 CHAIN: D; COMPND 4 EC: 1.5.1.3; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PNEUMOCYSTIS CARINII; SOURCE 3 ORGANISM_TAXID: 4754; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: ROSETTA GAMI B (DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET_SUMO-PCDHFR KEYWDS DIHYDROFOLATE REDUCTASE INHIBITOR COFACTOR TERNARY COMPLEX, KEYWDS 2 REDUCTASE, OXIDOREDUCTASE-INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR V.CODY REVDAT 4 20-SEP-23 4IXE 1 REMARK REVDAT 3 15-NOV-17 4IXE 1 REMARK REVDAT 2 10-JUL-13 4IXE 1 JRNL REVDAT 1 29-MAY-13 4IXE 0 JRNL AUTH A.GANGJEE,O.A.NAMJOSHI,S.RAGHAVAN,S.F.QUEENER,R.L.KISLIUK, JRNL AUTH 2 V.CODY JRNL TITL DESIGN, SYNTHESIS, AND MOLECULAR MODELING OF NOVEL JRNL TITL 2 PYRIDO[2,3-D]PYRIMIDINE ANALOGUES AS ANTIFOLATES; JRNL TITL 3 APPLICATION OF BUCHWALD-HARTWIG AMINATIONS OF HETEROCYCLES. JRNL REF J.MED.CHEM. V. 56 4422 2013 JRNL REFN ISSN 0022-2623 JRNL PMID 23627352 JRNL DOI 10.1021/JM400086G REMARK 2 REMARK 2 RESOLUTION. 1.54 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.6.0117 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) : 1.54 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 36.64 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 95.3 REMARK 3 NUMBER OF REFLECTIONS : 24614 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) : 0.179 REMARK 3 R VALUE (WORKING SET) : 0.177 REMARK 3 FREE R VALUE : 0.220 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1308 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) : 1.54 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.58 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1295 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 68.63 REMARK 3 BIN R VALUE (WORKING SET) : 0.1760 REMARK 3 BIN FREE R VALUE SET COUNT : 59 REMARK 3 BIN FREE R VALUE : 0.2450 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1686 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 71 REMARK 3 SOLVENT ATOMS : 114 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.54 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): 0.093 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.096 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.057 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.505 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.954 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.932 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1805 ; 0.023 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2449 ; 2.397 ; 1.999 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 205 ; 6.186 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 78 ;30.474 ;23.333 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 319 ;16.313 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 11 ;17.514 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 263 ; 0.280 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1334 ; 0.014 ; 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): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL 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 : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN USED IF PRESENT IN REMARK 3 THE INPUT REMARK 4 REMARK 4 4IXE COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-FEB-13. REMARK 100 THE DEPOSITION ID IS D_1000077329. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-APR-12 REMARK 200 TEMPERATURE (KELVIN) : 113 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL11-1 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 : PIXEL REMARK 200 DETECTOR MANUFACTURER : PSI PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS, SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25934 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.540 REMARK 200 RESOLUTION RANGE LOW (A) : 36.640 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.6 REMARK 200 DATA REDUNDANCY : 3.300 REMARK 200 R MERGE (I) : 0.02500 REMARK 200 R SYM (I) : 0.01400 REMARK 200 FOR THE DATA SET : 38.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.54 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.62 REMARK 200 COMPLETENESS FOR SHELL (%) : 83.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.80 REMARK 200 R MERGE FOR SHELL (I) : 0.07800 REMARK 200 R SYM FOR SHELL (I) : 0.04500 REMARK 200 FOR SHELL : 14.30 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: PDB ENTRY 3CD2 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 35.71 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.91 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 HEPS, 25% PEG2000 MME, PH 7.5, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 287K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 21.35950 REMARK 290 SMTRY3 2 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: D 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 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 CB THR D 45 O HOH D 415 1.64 REMARK 500 O GLY D 110 NE2 GLN D 116 2.01 REMARK 500 O HOH D 497 O HOH D 512 2.01 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 O HOH D 418 O HOH D 509 2555 1.23 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 TRP D 169 CE2 TRP D 169 CD2 0.076 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 D 67 CA - CB - CG ANGL. DEV. = -16.2 DEGREES REMARK 500 LEU D 67 CB - CG - CD1 ANGL. DEV. = 10.4 DEGREES REMARK 500 LEU D 128 CB - CG - CD1 ANGL. DEV. = 14.7 DEGREES REMARK 500 LEU D 128 CB - CG - CD2 ANGL. DEV. = 10.6 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 D 2 -28.13 -144.05 REMARK 500 ASN D 118 -110.37 -108.15 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 IXE D 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NDP D 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2CD4 RELATED DB: PDB REMARK 900 PCDHFR LIGAND COMPLEX REMARK 900 RELATED ID: 4IXF RELATED DB: PDB REMARK 900 RELATED ID: 4IXG RELATED DB: PDB DBREF 4IXE D 1 206 UNP P16184 DYR_PNECA 1 206 SEQRES 1 D 206 MET ASN GLN GLN LYS SER LEU THR LEU ILE VAL ALA LEU SEQRES 2 D 206 THR THR SER TYR GLY ILE GLY ARG SER ASN SER LEU PRO SEQRES 3 D 206 TRP LYS LEU LYS LYS GLU ILE SER TYR PHE LYS ARG VAL SEQRES 4 D 206 THR SER PHE VAL PRO THR PHE ASP SER PHE GLU SER MET SEQRES 5 D 206 ASN VAL VAL LEU MET GLY ARG LYS THR TRP GLU SER ILE SEQRES 6 D 206 PRO LEU GLN PHE ARG PRO LEU LYS GLY ARG ILE ASN VAL SEQRES 7 D 206 VAL ILE THR ARG ASN GLU SER LEU ASP LEU GLY ASN GLY SEQRES 8 D 206 ILE HIS SER ALA LYS SER LEU ASP HIS ALA LEU GLU LEU SEQRES 9 D 206 LEU TYR ARG THR TYR GLY SER GLU SER SER VAL GLN ILE SEQRES 10 D 206 ASN ARG ILE PHE VAL ILE GLY GLY ALA GLN LEU TYR LYS SEQRES 11 D 206 ALA ALA MET ASP HIS PRO LYS LEU ASP ARG ILE MET ALA SEQRES 12 D 206 THR ILE ILE TYR LYS ASP ILE HIS CYS ASP VAL PHE PHE SEQRES 13 D 206 PRO LEU LYS PHE ARG ASP LYS GLU TRP SER SER VAL TRP SEQRES 14 D 206 LYS LYS GLU LYS HIS SER ASP LEU GLU SER TRP VAL GLY SEQRES 15 D 206 THR LYS VAL PRO HIS GLY LYS ILE ASN GLU ASP GLY PHE SEQRES 16 D 206 ASP TYR GLU PHE GLU MET TRP THR ARG ASP LEU HET IXE D 301 23 HET NDP D 302 48 HETNAM IXE N~6~-METHYL-N~6~-(3,4,5-TRIFLUOROPHENYL)PYRIDO[2,3- HETNAM 2 IXE D]PYRIMIDINE-2,4,6-TRIAMINE HETNAM NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE HETNAM 2 NDP PHOSPHATE FORMUL 2 IXE C14 H11 F3 N6 FORMUL 3 NDP C21 H30 N7 O17 P3 FORMUL 4 HOH *114(H2 O) HELIX 1 1 LEU D 29 PHE D 42 1 14 HELIX 2 2 ARG D 59 ILE D 65 1 7 HELIX 3 3 PRO D 66 ARG D 70 5 5 HELIX 4 4 SER D 97 TYR D 109 1 13 HELIX 5 5 GLY D 125 ASP D 134 1 10 HELIX 6 6 ASP D 162 SER D 166 5 5 HELIX 7 7 LYS D 173 GLY D 182 1 10 SHEET 1 A 8 HIS D 93 ALA D 95 0 SHEET 2 A 8 ILE D 76 ILE D 80 1 N VAL D 79 O HIS D 93 SHEET 3 A 8 SER D 51 GLY D 58 1 N ASN D 53 O ILE D 76 SHEET 4 A 8 GLN D 116 VAL D 122 1 O PHE D 121 N LEU D 56 SHEET 5 A 8 LEU D 7 THR D 14 1 N THR D 8 O VAL D 122 SHEET 6 A 8 LEU D 138 ILE D 146 1 O MET D 142 N LEU D 9 SHEET 7 A 8 PHE D 195 THR D 203 -1 O TRP D 202 N ILE D 141 SHEET 8 A 8 LYS D 170 LYS D 171 -1 N LYS D 170 O THR D 203 SHEET 1 B 8 HIS D 93 ALA D 95 0 SHEET 2 B 8 ILE D 76 ILE D 80 1 N VAL D 79 O HIS D 93 SHEET 3 B 8 SER D 51 GLY D 58 1 N ASN D 53 O ILE D 76 SHEET 4 B 8 GLN D 116 VAL D 122 1 O PHE D 121 N LEU D 56 SHEET 5 B 8 LEU D 7 THR D 14 1 N THR D 8 O VAL D 122 SHEET 6 B 8 LEU D 138 ILE D 146 1 O MET D 142 N LEU D 9 SHEET 7 B 8 PHE D 195 THR D 203 -1 O TRP D 202 N ILE D 141 SHEET 8 B 8 ILE D 190 GLU D 192 -1 N ILE D 190 O TYR D 197 SHEET 1 C 2 GLY D 18 GLY D 20 0 SHEET 2 C 2 VAL D 154 PHE D 155 -1 O VAL D 154 N ILE D 19 CISPEP 1 ARG D 70 PRO D 71 0 -12.60 CISPEP 2 GLY D 124 GLY D 125 0 1.03 SITE 1 AC1 15 ILE D 10 VAL D 11 ALA D 12 GLU D 32 SITE 2 AC1 15 PHE D 36 THR D 61 ILE D 65 PRO D 66 SITE 3 AC1 15 PHE D 69 LEU D 72 ILE D 123 TYR D 129 SITE 4 AC1 15 THR D 144 NDP D 302 HOH D 458 SITE 1 AC2 28 VAL D 11 ALA D 12 ILE D 19 GLY D 20 SITE 2 AC2 28 ASN D 23 SER D 24 LEU D 25 GLY D 58 SITE 3 AC2 28 ARG D 59 LYS D 60 THR D 61 ILE D 80 SITE 4 AC2 28 THR D 81 ARG D 82 LYS D 96 ILE D 123 SITE 5 AC2 28 GLY D 125 ALA D 126 GLN D 127 LEU D 128 SITE 6 AC2 28 TYR D 129 ALA D 131 IXE D 301 HOH D 443 SITE 7 AC2 28 HOH D 471 HOH D 473 HOH D 480 HOH D 487 CRYST1 36.708 42.719 58.481 90.00 93.59 90.00 P 1 21 1 2 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 0.027242 0.000000 0.001709 0.00000 SCALE2 0.000000 0.023409 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017133 0.00000