HEADER RACEMASE 06-JUL-93 2MNR TITLE MECHANISM OF THE REACTION CATALYZED BY MANDELATE RACEMASE. 2. CRYSTAL TITLE 2 STRUCTURE OF MANDELATE RACEMASE AT 2.5 ANGSTROMS RESOLUTION: TITLE 3 IDENTIFICATION OF THE ACTIVE SITE AND POSSIBLE CATALYTIC RESIDUES COMPND MOL_ID: 1; COMPND 2 MOLECULE: MANDELATE RACEMASE; COMPND 3 CHAIN: A; COMPND 4 EC: 5.1.2.2; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSEUDOMONAS PUTIDA; SOURCE 3 ORGANISM_TAXID: 303 KEYWDS RACEMASE EXPDTA X-RAY DIFFRACTION AUTHOR D.J.NEIDHART,G.A.PETSKO REVDAT 9 21-FEB-24 2MNR 1 REMARK LINK REVDAT 8 14-AUG-19 2MNR 1 REMARK REVDAT 7 17-JUL-19 2MNR 1 REMARK REVDAT 6 29-NOV-17 2MNR 1 HELIX REVDAT 5 16-NOV-11 2MNR 1 HETATM REVDAT 4 13-JUL-11 2MNR 1 VERSN REVDAT 3 24-FEB-09 2MNR 1 VERSN REVDAT 2 01-APR-03 2MNR 1 JRNL REVDAT 1 31-JAN-94 2MNR 0 JRNL AUTH D.J.NEIDHART,P.L.HOWELL,G.A.PETSKO,V.M.POWERS,R.S.LI, JRNL AUTH 2 G.L.KENYON,J.A.GERLT JRNL TITL MECHANISM OF THE REACTION CATALYZED BY MANDELATE RACEMASE. JRNL TITL 2 2. CRYSTAL STRUCTURE OF MANDELATE RACEMASE AT 2.5-A JRNL TITL 3 RESOLUTION: IDENTIFICATION OF THE ACTIVE SITE AND POSSIBLE JRNL TITL 4 CATALYTIC RESIDUES. JRNL REF BIOCHEMISTRY V. 30 9264 1991 JRNL REFN ISSN 0006-2960 JRNL PMID 1892834 JRNL DOI 10.1021/BI00102A019 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH D.J.NEIDHART,G.L.KENYON,J.A.GERLT,G.A.PETSKO REMARK 1 TITL MANDELATE RACEMASE AND MUCONATE LACTONIZING ENZYME ARE REMARK 1 TITL 2 MECHANISTICALLY DISTINCT AND STRUCTURALLY HOMOLOGOUS REMARK 1 REF NATURE V. 347 692 1990 REMARK 1 REFN ISSN 0028-0836 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 25592 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : 0.162 REMARK 3 R VALUE (WORKING SET) : 0.162 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2698 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 211 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2MNR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000178375. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 2 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 -Y,X,Z REMARK 290 4555 Y,-X,Z REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 11555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 12555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 13555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 14555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 15555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 16555 -Y+1/2,-X+1/2,-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 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 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 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 62.50000 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 53.10000 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 62.50000 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 53.10000 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 62.50000 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 53.10000 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 62.50000 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 53.10000 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 62.50000 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 53.10000 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 62.50000 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 53.10000 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 62.50000 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 53.10000 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 62.50000 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 62.50000 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 53.10000 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: OCTAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: OCTAMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 28870 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 84750 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -350.0 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 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 5 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 6 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 7 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 7 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 350 BIOMT1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 8 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 HOH A 597 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 598 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 612 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 614 LIES ON A SPECIAL POSITION. 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 HIS A 23 NE2 HIS A 23 CD2 -0.077 REMARK 500 HIS A 48 NE2 HIS A 48 CD2 -0.070 REMARK 500 HIS A 140 NE2 HIS A 140 CD2 -0.068 REMARK 500 HIS A 227 NE2 HIS A 227 CD2 -0.068 REMARK 500 HIS A 232 NE2 HIS A 232 CD2 -0.068 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 TYR A 54 CB - CG - CD2 ANGL. DEV. = -3.9 DEGREES REMARK 500 TRP A 112 CE2 - CD2 - CG ANGL. DEV. = -4.8 DEGREES REMARK 500 ARG A 208 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 TRP A 219 CD1 - CG - CD2 ANGL. DEV. = 5.1 DEGREES REMARK 500 TRP A 249 CD1 - CG - CD2 ANGL. DEV. = 5.1 DEGREES REMARK 500 TRP A 249 CE2 - CD2 - CG ANGL. DEV. = -4.8 DEGREES REMARK 500 TRP A 280 CD1 - CG - CD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 TRP A 280 CE2 - CD2 - CG ANGL. DEV. = -5.6 DEGREES REMARK 500 ARG A 282 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 TRP A 315 CD1 - CG - CD2 ANGL. DEV. = 6.8 DEGREES REMARK 500 TRP A 315 CE2 - CD2 - CG ANGL. DEV. = -5.3 DEGREES REMARK 500 TRP A 349 CD1 - CG - CD2 ANGL. DEV. = 7.0 DEGREES REMARK 500 TRP A 349 CE2 - CD2 - CG ANGL. DEV. = -6.5 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 ALA A 19 -73.67 118.27 REMARK 500 TYR A 54 -45.82 69.98 REMARK 500 HIS A 140 -165.73 -111.76 REMARK 500 SER A 141 -149.77 -133.12 REMARK 500 GLU A 222 68.11 29.09 REMARK 500 LEU A 298 -166.05 58.02 REMARK 500 HIS A 314 -84.37 -120.78 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 MANDELATE RACEMASE ABSOLUTELY REQUIRES A DIVALENT METAL REMARK 600 ION FOR ACTIVITY AND IS MOST ACTIVE WITH A MAGNESIUM (II) REMARK 600 ION BOUND IN THE ACTIVE SITE. IN THIS CRYSTAL STRUCTURE, REMARK 600 MANGANESE (II) WAS EXCHANGED INTO THE ACTIVE SITE IN ORDER REMARK 600 TO FACILITATE X-RAY REFINEMENT OF THE POSITION OF THE BOUND REMARK 600 METAL ION. MANGANESE (II) SUBSTITUTED MANDELATE RACEMASE REMARK 600 IS ABOUT 48% AS ACTIVE AS HOLOENZYME CONTAINING MAGNESIUM REMARK 600 (II); HOWEVER, VERY LITTLE STRUCTURAL CHANGE OF THE ENZYME REMARK 600 IS APPARENT BETWEEN THESE FORMS. GIVEN THE MUCH HIGHER REMARK 600 NATURAL ABUNDANCE OF MAGNESIUM (II) VS. MANGANESE (II), IT REMARK 600 IS LIKELY THAT MAGNESIUM (II) IS THE PREDOMINANT COFACTOR REMARK 600 FOR MANDELATE RACEMASE IN VIVO. 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 MN A 360 MN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 195 OD2 REMARK 620 2 GLU A 221 OE2 87.7 REMARK 620 3 GLU A 247 OE1 170.0 88.0 REMARK 620 4 SO4 A 361 O2 94.6 92.1 94.6 REMARK 620 5 HOH A 414 O 83.7 100.7 88.2 167.0 REMARK 620 6 HOH A 459 O 95.7 175.2 89.2 84.3 83.1 REMARK 620 N 1 2 3 4 5 REMARK 700 REMARK 700 SHEET REMARK 700 BETA SHEETS ARE NAMED FOR THE MAJOR DOMAINS IN WHICH THEY REMARK 700 OCCUR: "N" FOR N-TERMINAL DOMAIN, "B" FOR BETA-BARREL REMARK 700 DOMAIN, AND "C" FOR C-TERMINAL DOMAIN. "F" REFERS TO THE REMARK 700 ACTIVE SITE FLAP. LIKEWISE, ALPHA HELICES ARE NAMED WITH REMARK 700 TWO CHARACTERS, THE FIRST REFERRING TO THE DOMAIN IN WHICH REMARK 700 THEY OCCUR. REMARK 700 THE SHEET PRESENTED AS *B* ON SHEET RECORDS BELOW IS REMARK 700 ACTUALLY AN EIGHT-STRANDED BETA-BARREL. THIS IS REMARK 700 REPRESENTED BY A NINE-STRANDED SHEET IN WHICH THE FIRST REMARK 700 AND LAST STRANDS ARE IDENTICAL. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: MTL REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: DIRECT METAL ION LIGANDS REMARK 800 REMARK 800 SITE_IDENTIFIER: ACT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: ACID/BASE CATALYSTS RESPONSIBLE FOR PROTON REMARK 800 ABSTRACTION AND REDELIVERY IN THE RACEMIZATION REACTION REMARK 800 REMARK 800 SITE_IDENTIFIER: CAR REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: THE BINDING SITE FOR THE CARBOXYL GROUP OF REMARK 800 SUBSTRATE. THESE RESIDUES FUNCTION, ALONG WITH THE METAL ION, AS REMARK 800 ELECTROPHILIC CATALYSTS REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MN A 360 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 361 DBREF 2MNR A 3 359 UNP P11444 MANR_PSEPU 3 359 SEQRES 1 A 357 GLU VAL LEU ILE THR GLY LEU ARG THR ARG ALA VAL ASN SEQRES 2 A 357 VAL PRO LEU ALA TYR PRO VAL HIS THR ALA VAL GLY THR SEQRES 3 A 357 VAL GLY THR ALA PRO LEU VAL LEU ILE ASP LEU ALA THR SEQRES 4 A 357 SER ALA GLY VAL VAL GLY HIS SER TYR LEU PHE ALA TYR SEQRES 5 A 357 THR PRO VAL ALA LEU LYS SER LEU LYS GLN LEU LEU ASP SEQRES 6 A 357 ASP MET ALA ALA MET ILE VAL ASN GLU PRO LEU ALA PRO SEQRES 7 A 357 VAL SER LEU GLU ALA MET LEU ALA LYS ARG PHE CYS LEU SEQRES 8 A 357 ALA GLY TYR THR GLY LEU ILE ARG MET ALA ALA ALA GLY SEQRES 9 A 357 ILE ASP MET ALA ALA TRP ASP ALA LEU GLY LYS VAL HIS SEQRES 10 A 357 GLU THR PRO LEU VAL LYS LEU LEU GLY ALA ASN ALA ARG SEQRES 11 A 357 PRO VAL GLN ALA TYR ASP SER HIS SER LEU ASP GLY VAL SEQRES 12 A 357 LYS LEU ALA THR GLU ARG ALA VAL THR ALA ALA GLU LEU SEQRES 13 A 357 GLY PHE ARG ALA VAL LYS THR LYS ILE GLY TYR PRO ALA SEQRES 14 A 357 LEU ASP GLN ASP LEU ALA VAL VAL ARG SER ILE ARG GLN SEQRES 15 A 357 ALA VAL GLY ASP ASP PHE GLY ILE MET VAL ASP TYR ASN SEQRES 16 A 357 GLN SER LEU ASP VAL PRO ALA ALA ILE LYS ARG SER GLN SEQRES 17 A 357 ALA LEU GLN GLN GLU GLY VAL THR TRP ILE GLU GLU PRO SEQRES 18 A 357 THR LEU GLN HIS ASP TYR GLU GLY HIS GLN ARG ILE GLN SEQRES 19 A 357 SER LYS LEU ASN VAL PRO VAL GLN MET GLY GLU ASN TRP SEQRES 20 A 357 LEU GLY PRO GLU GLU MET PHE LYS ALA LEU SER ILE GLY SEQRES 21 A 357 ALA CYS ARG LEU ALA MET PRO ASP ALA MET LYS ILE GLY SEQRES 22 A 357 GLY VAL THR GLY TRP ILE ARG ALA SER ALA LEU ALA GLN SEQRES 23 A 357 GLN PHE GLY ILE PRO MET SER SER HIS LEU PHE GLN GLU SEQRES 24 A 357 ILE SER ALA HIS LEU LEU ALA ALA THR PRO THR ALA HIS SEQRES 25 A 357 TRP LEU GLU ARG LEU ASP LEU ALA GLY SER VAL ILE GLU SEQRES 26 A 357 PRO THR LEU THR PHE GLU GLY GLY ASN ALA VAL ILE PRO SEQRES 27 A 357 ASP LEU PRO GLY VAL GLY ILE ILE TRP ARG GLU LYS GLU SEQRES 28 A 357 ILE GLY LYS TYR LEU VAL HET MN A 360 1 HET SO4 A 361 5 HETNAM MN MANGANESE (II) ION HETNAM SO4 SULFATE ION FORMUL 2 MN MN 2+ FORMUL 3 SO4 O4 S 2- FORMUL 4 HOH *211(H2 O) HELIX 1 NA THR A 55 ILE A 73 1KINKS AT ALA 58, ALA 70 19 HELIX 2 NB PRO A 80 ALA A 94 1KINK AT ARG 90 15 HELIX 3 NC GLY A 98 VAL A 118 1 21 HELIX 4 ND LEU A 123 LEU A 127 1 5 HELIX 5 BA GLY A 144 GLU A 157 1 14 HELIX 6 BB LEU A 172 VAL A 186 1 15 HELIX 7 BC VAL A 202 GLU A 215 1 14 HELIX 8 BD TYR A 229 SER A 237 1 9 HELIX 9 BE PRO A 252 ILE A 261 1 10 HELIX 10 BH ALA A 271 ILE A 274 1 4 HELIX 11 BF VAL A 277 PHE A 290 1 14 HELIX 12 BG GLN A 300 ALA A 308 1 9 HELIX 13 CA ALA A 322 ILE A 326 1 5 HELIX 14 CB GLU A 351 LYS A 356 1 6 SHEET 1 N 3 LEU A 5 VAL A 16 0 SHEET 2 N 3 ALA A 32 THR A 41 -1 O ALA A 40 N GLY A 8 SHEET 3 N 3 VAL A 45 PHE A 52 -1 O VAL A 45 N THR A 41 SHEET 1 B 9 VAL A 134 HIS A 140 0 SHEET 2 B 9 ALA A 162 LYS A 166 1 O ALA A 162 N ASP A 138 SHEET 3 B 9 GLY A 191 ASP A 195 1 O GLY A 191 N VAL A 163 SHEET 4 B 9 TRP A 219 GLU A 221 1 O TRP A 219 N VAL A 194 SHEET 5 B 9 PRO A 242 MET A 245 1 O PRO A 242 N ILE A 220 SHEET 6 B 9 ARG A 265 MET A 268 1 N MET A 268 O MET A 245 SHEET 7 B 9 PRO A 293 HIS A 297 1 N SER A 295 O ALA A 267 SHEET 8 B 9 HIS A 314 ARG A 318 1 O TRP A 315 N SER A 296 SHEET 9 B 9 VAL A 134 HIS A 140 1 O GLN A 135 N LEU A 316 SHEET 1 C 3 THR A 331 GLU A 333 0 SHEET 2 C 3 ASN A 336 VAL A 338 -1 N VAL A 338 O THR A 331 SHEET 3 C 3 VAL A 134 ALA A 136 -1 O VAL A 134 N ALA A 337 SHEET 1 F 2 VAL A 22 THR A 24 0 SHEET 2 F 2 GLY A 27 VAL A 29 -1 O VAL A 29 N VAL A 22 LINK OD2 ASP A 195 MN MN A 360 1555 1555 2.03 LINK OE2 GLU A 221 MN MN A 360 1555 1555 2.15 LINK OE1 GLU A 247 MN MN A 360 1555 1555 1.95 LINK MN MN A 360 O2 SO4 A 361 1555 1555 2.20 LINK MN MN A 360 O HOH A 414 1555 1555 2.15 LINK MN MN A 360 O HOH A 459 1555 1555 2.23 SITE 1 MTL 3 ASP A 195 GLU A 221 GLU A 247 SITE 1 ACT 2 LYS A 166 HIS A 297 SITE 1 CAR 2 LYS A 164 GLU A 317 SITE 1 AC1 6 ASP A 195 GLU A 221 GLU A 247 SO4 A 361 SITE 2 AC1 6 HOH A 414 HOH A 459 SITE 1 AC2 12 SER A 139 LYS A 164 LYS A 166 ASP A 195 SITE 2 AC2 12 GLU A 221 GLU A 247 HIS A 297 GLU A 317 SITE 3 AC2 12 MN A 360 HOH A 434 HOH A 459 HOH A 617 CRYST1 125.000 125.000 106.200 90.00 90.00 90.00 I 4 2 2 16 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 0.008000 0.000000 0.000000 0.00000 SCALE2 0.000000 0.008000 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009416 0.00000