HEADER OXIDOREDUCTASE 16-NOV-08 2W3V TITLE MYCOBACTERIUM AVIUM DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND TITLE 2 TRIMETHOPRIM COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROFOLATE REDUCTASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 1-167; COMPND 5 EC: 1.5.1.3; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM AVIUM; SOURCE 3 ORGANISM_TAXID: 1764; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_VECTOR: PET11A; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PET11A-MACDHFR-DEL; SOURCE 8 OTHER_DETAILS: STRAIN OBTAINED FROM THE AIDS RESEARCH AND REFERENCE SOURCE 9 REAGENT PROGRAM, DIVISION OF AIDS, NIAID, NIH, CATALOG NUMBER 1786. KEYWDS NONCLASSICAL ANTIFOLATES, ONE-CARBON METABOLISM, LIPOPHILIC KEYWDS 2 ANTIFOLATES, NADP, REDUCTASE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR A.K.W.LEUNG,R.C.REYNOLDS,D.W.BORHANI REVDAT 6 13-DEC-23 2W3V 1 REMARK REVDAT 5 08-MAY-19 2W3V 1 REMARK REVDAT 4 06-MAR-19 2W3V 1 REMARK REVDAT 3 11-APR-18 2W3V 1 SOURCE REMARK REVDAT 2 13-JUL-11 2W3V 1 VERSN REVDAT 1 17-NOV-09 2W3V 0 JRNL AUTH A.K.W.LEUNG,L.J.ROSS,S.ZYWNO-VAN GINKEL,R.C.REYNOLDS, JRNL AUTH 2 L.E.SEITZ,V.PATHAK,W.W.BARROW,E.L.WHITE,W.J.SULING, JRNL AUTH 3 J.R.PIPER,D.W.BORHANI JRNL TITL STRUCTURAL BASIS FOR SELECTIVE INHIBITION OF MYCOBACTERIUM JRNL TITL 2 AVIUM DIHYDROFOLATE REDUCTASE BY A LIPOPHILIC ANTIFOLATE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.89 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 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) : 1.89 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.83 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 3 NUMBER OF REFLECTIONS : 14529 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) : 0.182 REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : 0.224 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 773 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) : 1.89 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.94 REMARK 3 REFLECTION IN BIN (WORKING SET) : 953 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 90.49 REMARK 3 BIN R VALUE (WORKING SET) : 0.2550 REMARK 3 BIN FREE R VALUE SET COUNT : 46 REMARK 3 BIN FREE R VALUE : 0.3110 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1276 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 69 REMARK 3 SOLVENT ATOMS : 160 REMARK 3 REMARK 3 B VALUES. REMARK 3 B VALUE TYPE : LIKELY RESIDUAL REMARK 3 FROM WILSON PLOT (A**2) : 24.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.52 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.17000 REMARK 3 B22 (A**2) : 1.17000 REMARK 3 B33 (A**2) : -2.33000 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): 0.150 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.141 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.104 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.352 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.963 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.940 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1426 ; 0.014 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1960 ; 1.553 ; 2.011 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 174 ; 5.902 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 62 ;29.172 ;21.290 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 206 ;12.153 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 19 ;16.730 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 207 ; 0.104 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1114 ; 0.006 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 554 ; 0.197 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 953 ; 0.310 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 124 ; 0.153 ; 0.200 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): 23 ; 0.200 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 22 ; 0.146 ; 0.200 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): 869 ; 0.904 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1367 ; 1.395 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 656 ; 2.274 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 593 ; 3.310 ; 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 : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 3 A 167 REMARK 3 ORIGIN FOR THE GROUP (A): 55.7910 19.0940 33.4370 REMARK 3 T TENSOR REMARK 3 T11: -0.0854 T22: -0.0937 REMARK 3 T33: -0.0138 T12: -0.0345 REMARK 3 T13: -0.0093 T23: -0.0236 REMARK 3 L TENSOR REMARK 3 L11: 2.7150 L22: 2.1444 REMARK 3 L33: 3.0189 L12: 1.1302 REMARK 3 L13: -0.0371 L23: -0.6276 REMARK 3 S TENSOR REMARK 3 S11: 0.0751 S12: -0.2272 S13: 0.0569 REMARK 3 S21: 0.1077 S22: -0.0881 S23: -0.0287 REMARK 3 S31: 0.1056 S32: -0.1003 S33: 0.0130 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH 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 ADDED IN THE RIDING REMARK 3 POSITIONS. REMARK 4 REMARK 4 2W3V COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 16-NOV-08. REMARK 100 THE DEPOSITION ID IS D_1290038127. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-JAN-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.785 REMARK 200 MONOCHROMATOR : SI REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15319 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.890 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -10.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 200 DATA REDUNDANCY : 4.600 REMARK 200 R MERGE (I) : 0.07000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.89 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.95 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.5 REMARK 200 DATA REDUNDANCY IN SHELL : 4.10 REMARK 200 R MERGE FOR SHELL (I) : 0.54000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.700 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 1RX1 REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MAVDHFR (15 MG/ML) IN 20 MM HEPES (PH REMARK 280 7.0), 1 MM DTT, 0.1 MM EDTA, 1.5 MM NAN3 WAS MIXED WITH NADPH (3 REMARK 280 MM, 15 MIN AT ROOM TEMPERATURE) AND THEN TRIMETHOPRIM (2 MM, 15 REMARK 280 MIN ON ICE). CRYSTALLIZATION (HANGING DROP VAPOR PHASE REMARK 280 EQUILIBRATION) WAS ACHIEVED BY MIXING WITH AN EQUAL VOLUME OF REMARK 280 THE PROTEIN COMPLEX WITH A RESERVOIR SOLUTION CONSISTING OF 70% REMARK 280 2-METHYL-2, 4-PENTANEDIOL (MPD) AND 100 MM HEPES (PH 6.5), AND REMARK 280 SUSPENDING THE MIXTURE OVER THE RESERVOIR AT 277 K. SMALL ROD- REMARK 280 LIKE CRYSTALS (0.01 X 0.01 X 0.05 MM) GREW WITHIN 2 DAYS. REMARK 280 CRYSTALS WERE FLASH-COOLED DIRECTLY FROM THE DROP IN LIQUID N2., REMARK 280 VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 36.80650 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 35.40800 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 35.40800 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 18.40325 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 35.40800 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 35.40800 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 55.20975 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 35.40800 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 35.40800 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 18.40325 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 35.40800 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 35.40800 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 55.20975 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 36.80650 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: 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 1 REMARK 465 THR A 2 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ARG A 3 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 57 CD CE NZ 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 PRO A 25 35.99 -82.93 REMARK 500 REMARK 500 REMARK: NULL REMARK 700 REMARK 700 SHEET REMARK 700 THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN REMARK 700 ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, REMARK 700 TWO SHEETS ARE DEFINED. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NDP A 1168 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TOP A 1169 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2W3W RELATED DB: PDB REMARK 900 MYCOBACTERIUM AVIUM DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH REMARK 900 AND A LIPOPHILIC ANTIFOLATE SELECTIVE FOR M. AVIUM DHFR, 6 -((2,5- REMARK 900 DIETHOXYPHENYL)AMINOMETHYL)-2,4- DIAMINO-5-METHYLPYRIDO(2,3-D) REMARK 900 PYRIMIDINE ( SRI-8686) REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUES 168-181 OF WILDTYPE M. AVIUM DHFR WERE DELETED IN REMARK 999 THE EXPRESSION CONSTRUCT. THE FIRST ELEVEN CODONS OF THE M. REMARK 999 AVIUM DHFR READING FRAME WERE MUTATED TO INCREASE THE A REMARK 999 AND T CONTENT. THE CODONS USED WERE 5'-ATG-ACT-CGT-GCT-GAA- REMARK 999 GTA-GGT-CTG-GTA-TGG-GCT. PCR INTRODUCED AN UNINTENDED REMARK 999 SILENT MUTATION AT VAL120 (GTC MUTATED TO GTT). DBREF 2W3V A 1 167 UNP O30463 O30463_MYCAV 1 167 SEQRES 1 A 167 MET THR ARG ALA GLU VAL GLY LEU VAL TRP ALA GLN SER SEQRES 2 A 167 THR SER GLY VAL ILE GLY ARG GLY GLY ASP ILE PRO TRP SEQRES 3 A 167 SER VAL PRO GLU ASP LEU THR ARG PHE LYS GLU VAL THR SEQRES 4 A 167 MET GLY HIS THR VAL ILE MET GLY ARG ARG THR TRP GLU SEQRES 5 A 167 SER LEU PRO ALA LYS VAL ARG PRO LEU PRO GLY ARG ARG SEQRES 6 A 167 ASN VAL VAL VAL SER ARG ARG PRO ASP PHE VAL ALA GLU SEQRES 7 A 167 GLY ALA ARG VAL ALA GLY SER LEU GLU ALA ALA LEU ALA SEQRES 8 A 167 TYR ALA GLY SER ASP PRO ALA PRO TRP VAL ILE GLY GLY SEQRES 9 A 167 ALA GLN ILE TYR LEU LEU ALA LEU PRO HIS ALA THR ARG SEQRES 10 A 167 CYS GLU VAL THR GLU ILE GLU ILE ASP LEU ARG ARG ASP SEQRES 11 A 167 ASP ASP ASP ALA LEU ALA PRO ALA LEU ASP ASP SER TRP SEQRES 12 A 167 VAL GLY GLU THR GLY GLU TRP LEU ALA SER ARG SER GLY SEQRES 13 A 167 LEU ARG TYR ARG PHE HIS SER TYR ARG ARG ASP HET NDP A1168 48 HET TOP A1169 21 HETNAM NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE HETNAM 2 NDP PHOSPHATE HETNAM TOP TRIMETHOPRIM FORMUL 2 NDP C21 H30 N7 O17 P3 FORMUL 3 TOP C14 H18 N4 O3 FORMUL 4 HOH *160(H2 O) HELIX 1 1 VAL A 28 MET A 40 1 13 HELIX 2 2 ARG A 48 LEU A 54 1 7 HELIX 3 3 SER A 85 ALA A 93 1 9 HELIX 4 4 GLY A 104 LEU A 112 1 9 SHEET 1 AA 8 ARG A 81 ALA A 83 0 SHEET 2 AA 8 ARG A 65 VAL A 69 1 O ASN A 66 N ARG A 81 SHEET 3 AA 8 THR A 43 GLY A 47 1 O VAL A 44 N VAL A 67 SHEET 4 AA 8 TRP A 100 VAL A 101 1 O TRP A 100 N ILE A 45 SHEET 5 AA 8 VAL A 6 SER A 13 1 O GLY A 7 N VAL A 101 SHEET 6 AA 8 ALA A 115 GLU A 124 1 N THR A 116 O VAL A 6 SHEET 7 AA 8 ARG A 158 ARG A 165 -1 O ARG A 158 N GLU A 124 SHEET 8 AA 8 VAL A 144 THR A 147 -1 O VAL A 144 N ARG A 165 SHEET 1 AB 8 ARG A 81 ALA A 83 0 SHEET 2 AB 8 ARG A 65 VAL A 69 1 O ASN A 66 N ARG A 81 SHEET 3 AB 8 THR A 43 GLY A 47 1 O VAL A 44 N VAL A 67 SHEET 4 AB 8 TRP A 100 VAL A 101 1 O TRP A 100 N ILE A 45 SHEET 5 AB 8 VAL A 6 SER A 13 1 O GLY A 7 N VAL A 101 SHEET 6 AB 8 ALA A 115 GLU A 124 1 N THR A 116 O VAL A 6 SHEET 7 AB 8 ARG A 158 ARG A 165 -1 O ARG A 158 N GLU A 124 SHEET 8 AB 8 LEU A 151 ALA A 152 -1 O LEU A 151 N TYR A 159 SHEET 1 AC 2 VAL A 17 GLY A 19 0 SHEET 2 AC 2 ALA A 134 LEU A 135 -1 O ALA A 134 N ILE A 18 CISPEP 1 ARG A 59 PRO A 60 0 -5.62 CISPEP 2 GLY A 103 GLY A 104 0 -1.64 SITE 1 AC1 31 TRP A 10 ALA A 11 ILE A 18 GLY A 22 SITE 2 AC1 31 GLY A 47 ARG A 48 ARG A 49 THR A 50 SITE 3 AC1 31 SER A 53 VAL A 69 SER A 70 ARG A 71 SITE 4 AC1 31 ARG A 72 GLY A 84 ILE A 102 GLY A 104 SITE 5 AC1 31 ALA A 105 GLN A 106 ILE A 107 TYR A 108 SITE 6 AC1 31 LEU A 110 ALA A 134 TOP A1169 HOH A2078 SITE 7 AC1 31 HOH A2079 HOH A2155 HOH A2156 HOH A2157 SITE 8 AC1 31 HOH A2158 HOH A2159 HOH A2160 SITE 1 AC2 10 VAL A 9 TRP A 10 ALA A 11 ASP A 31 SITE 2 AC2 10 PHE A 35 SER A 53 LEU A 54 ILE A 102 SITE 3 AC2 10 TYR A 108 NDP A1168 CRYST1 70.816 70.816 73.613 90.00 90.00 90.00 P 41 21 2 8 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 0.014121 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014121 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013585 0.00000