HEADER ISOMERASE 15-OCT-04 1XRU TITLE CRYSTAL STRUCTURE OF 5-KETO-4-DEOXYURONATE ISOMERASE FROM ESCHERICIA TITLE 2 COLI COMPND MOL_ID: 1; COMPND 2 MOLECULE: 4-DEOXY-L-THREO-5-HEXOSULOSE-URONATE KETOL-ISOMERASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: 5-KETO-4-DEOXYURONATE ISOMERASE, DKI ISOMERASE; COMPND 5 EC: 5.3.1.17; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: KDUI; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: B834; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET15B KEYWDS BETA BARREL, CUPIN, ISOMERASE EXPDTA X-RAY DIFFRACTION AUTHOR R.L.CROWTHER,M.M.GEORGIADIS REVDAT 5 13-JUL-11 1XRU 1 VERSN REVDAT 4 24-FEB-09 1XRU 1 VERSN REVDAT 3 01-NOV-05 1XRU 1 JRNL REVDAT 2 27-SEP-05 1XRU 1 JRNL REVDAT 1 05-APR-05 1XRU 0 JRNL AUTH R.L.CROWTHER,M.M.GEORGIADIS JRNL TITL THE CRYSTAL STRUCTURE OF 5-KETO-4-DEOXYURONATE ISOMERASE JRNL TITL 2 FROM ESCHERICHIA COLI JRNL REF PROTEINS V. 61 680 2005 JRNL REFN ISSN 0887-3585 JRNL PMID 16152643 JRNL DOI 10.1002/PROT.20598 REMARK 2 REMARK 2 RESOLUTION. 1.94 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.94 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 12.97 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 51449 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.164 REMARK 3 FREE R VALUE : 0.191 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2562 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4374 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 34 REMARK 3 SOLVENT ATOMS : 457 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 16.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.21000 REMARK 3 B22 (A**2) : 0.21000 REMARK 3 B33 (A**2) : -0.40000 REMARK 3 B12 (A**2) : 0.61000 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) : 0.17 REMARK 3 ESD FROM SIGMAA (A) : 0.20 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) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.004 REMARK 3 BOND ANGLES (DEGREES) : 1.30 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : OVERALL 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1XRU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-OCT-04. REMARK 100 THE RCSB ID CODE IS RCSB030693. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-APR-02 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X8C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.980122, 0.979634, 0.979538 REMARK 200 MONOCHROMATOR : SAGITALLY FOCUSED SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 51573 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.940 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 4.500 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07000 REMARK 200 FOR THE DATA SET : 9.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.94 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.01 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.3 REMARK 200 DATA REDUNDANCY IN SHELL : 4.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.20000 REMARK 200 FOR SHELL : 4.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SHARP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.90 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 400, CALCIUM CHLORIDE, HEPES, PH REMARK 280 7, VAPOR DIFFUSION, TEMPERATURE 277K 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 51.48600 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 29.72546 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 58.95400 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 51.48600 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 29.72546 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 58.95400 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 51.48600 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 29.72546 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 58.95400 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 59.45091 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 117.90800 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 59.45091 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 117.90800 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 59.45091 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 117.90800 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A HEXAMER GENERATED FROM THE REMARK 300 DIMER IN THE ASYMMETRIC UNIT BY THE OPERATIONS: -Y, X-Y, Z AND Y-X, REMARK 300 -X, 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PQS REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 102.97200 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 51.48600 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 89.17637 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3690 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21650 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -28.0 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 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 2 -0.500000 -0.866025 0.000000 102.97200 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 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 ALA A 279 REMARK 465 ALA B 279 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 GLU A 62 CG CD OE1 OE2 REMARK 470 ALA A 273 CB REMARK 470 ASP B 119 CG OD1 OD2 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 ILE A 53 -70.60 -126.06 REMARK 500 GLU A 146 -9.63 -57.25 REMARK 500 SER A 148 79.88 55.82 REMARK 500 GLN A 176 -10.43 -151.34 REMARK 500 GLU A 225 54.61 -140.62 REMARK 500 ILE B 53 -64.65 -122.12 REMARK 500 GLN B 176 -9.57 -148.32 REMARK 500 GLU B 225 52.01 -141.85 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 668 DISTANCE = 5.49 ANGSTROMS 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 ZN A 501 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 245 NE2 REMARK 620 2 GLU A 203 OE1 104.6 REMARK 620 3 HIS A 198 NE2 106.9 115.7 REMARK 620 4 HIS A 196 NE2 105.2 113.8 109.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 502 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 198 NE2 REMARK 620 2 HIS B 245 NE2 105.6 REMARK 620 3 HIS B 196 NE2 112.3 105.6 REMARK 620 4 GLU B 203 OE2 116.1 102.8 113.1 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 502 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1PE A 503 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1PE B 504 REMARK 999 REMARK 999 SEQUENCE AUTHOR STATES THAT THE C-TERMINAL DIFFERENCES FROM REMARK 999 DATABASE SEQUENCE IS A NEUTRAL DESIGNATION. THE C-TERMINAL SEQUENCE REMARK 999 REPORTED HERE IS INDEED CORRECT FOR THE GENE THAT WAS CLONED AND REMARK 999 FOR PROTEIN THAT WAS CRYSTALLIZED. DBREF 1XRU A 1 278 UNP Q46938 KDUI_ECOLI 1 278 DBREF 1XRU B 1 278 UNP Q46938 KDUI_ECOLI 1 278 SEQADV 1XRU GLY A -2 UNP Q46938 CLONING ARTIFACT SEQADV 1XRU SER A -1 UNP Q46938 CLONING ARTIFACT SEQADV 1XRU ALA A 0 UNP Q46938 CLONING ARTIFACT SEQADV 1XRU MSE A 37 UNP Q46938 MET 37 MODIFIED RESIDUE SEQADV 1XRU MSE A 51 UNP Q46938 MET 51 MODIFIED RESIDUE SEQADV 1XRU MSE A 179 UNP Q46938 MET 179 MODIFIED RESIDUE SEQADV 1XRU MSE A 193 UNP Q46938 MET 193 MODIFIED RESIDUE SEQADV 1XRU MSE A 202 UNP Q46938 MET 202 MODIFIED RESIDUE SEQADV 1XRU MSE A 210 UNP Q46938 MET 210 MODIFIED RESIDUE SEQADV 1XRU MSE A 219 UNP Q46938 MET 219 MODIFIED RESIDUE SEQADV 1XRU MSE A 220 UNP Q46938 MET 220 MODIFIED RESIDUE SEQADV 1XRU MSE A 231 UNP Q46938 MET 231 MODIFIED RESIDUE SEQADV 1XRU MSE A 259 UNP Q46938 MET 259 MODIFIED RESIDUE SEQADV 1XRU MSE A 269 UNP Q46938 MET 269 MODIFIED RESIDUE SEQADV 1XRU GLU A 276 UNP Q46938 ASP 276 SEE REMARK 999 SEQADV 1XRU ILE A 277 UNP Q46938 LEU 277 SEE REMARK 999 SEQADV 1XRU CYS A 278 UNP Q46938 ARG 278 SEE REMARK 999 SEQADV 1XRU ALA A 279 UNP Q46938 SEE REMARK 999 SEQADV 1XRU GLY B -2 UNP Q46938 CLONING ARTIFACT SEQADV 1XRU SER B -1 UNP Q46938 CLONING ARTIFACT SEQADV 1XRU ALA B 0 UNP Q46938 CLONING ARTIFACT SEQADV 1XRU MSE B 37 UNP Q46938 MET 37 MODIFIED RESIDUE SEQADV 1XRU MSE B 51 UNP Q46938 MET 51 MODIFIED RESIDUE SEQADV 1XRU MSE B 179 UNP Q46938 MET 179 MODIFIED RESIDUE SEQADV 1XRU MSE B 193 UNP Q46938 MET 193 MODIFIED RESIDUE SEQADV 1XRU MSE B 202 UNP Q46938 MET 202 MODIFIED RESIDUE SEQADV 1XRU MSE B 210 UNP Q46938 MET 210 MODIFIED RESIDUE SEQADV 1XRU MSE B 219 UNP Q46938 MET 219 MODIFIED RESIDUE SEQADV 1XRU MSE B 220 UNP Q46938 MET 220 MODIFIED RESIDUE SEQADV 1XRU MSE B 231 UNP Q46938 MET 231 MODIFIED RESIDUE SEQADV 1XRU MSE B 259 UNP Q46938 MET 259 MODIFIED RESIDUE SEQADV 1XRU MSE B 269 UNP Q46938 MET 269 MODIFIED RESIDUE SEQADV 1XRU GLU B 276 UNP Q46938 ASP 276 SEE REMARK 999 SEQADV 1XRU ILE B 277 UNP Q46938 LEU 277 SEE REMARK 999 SEQADV 1XRU CYS B 278 UNP Q46938 ARG 278 SEE REMARK 999 SEQADV 1XRU ALA B 279 UNP Q46938 SEE REMARK 999 SEQRES 1 A 282 GLY SER ALA MET ASP VAL ARG GLN SER ILE HIS SER ALA SEQRES 2 A 282 HIS ALA LYS THR LEU ASP THR GLN GLY LEU ARG ASN GLU SEQRES 3 A 282 PHE LEU VAL GLU LYS VAL PHE VAL ALA ASP GLU TYR THR SEQRES 4 A 282 MSE VAL TYR SER HIS ILE ASP ARG ILE ILE VAL GLY GLY SEQRES 5 A 282 ILE MSE PRO ILE THR LYS THR VAL SER VAL GLY GLY GLU SEQRES 6 A 282 VAL GLY LYS GLN LEU GLY VAL SER TYR PHE LEU GLU ARG SEQRES 7 A 282 ARG GLU LEU GLY VAL ILE ASN ILE GLY GLY ALA GLY THR SEQRES 8 A 282 ILE THR VAL ASP GLY GLN CYS TYR GLU ILE GLY HIS ARG SEQRES 9 A 282 ASP ALA LEU TYR VAL GLY LYS GLY ALA LYS GLU VAL VAL SEQRES 10 A 282 PHE ALA SER ILE ASP THR GLY THR PRO ALA LYS PHE TYR SEQRES 11 A 282 TYR ASN CYS ALA PRO ALA HIS THR THR TYR PRO THR LYS SEQRES 12 A 282 LYS VAL THR PRO ASP GLU VAL SER PRO VAL THR LEU GLY SEQRES 13 A 282 ASP ASN LEU THR SER ASN ARG ARG THR ILE ASN LYS TYR SEQRES 14 A 282 PHE VAL PRO ASP VAL LEU GLU THR CYS GLN LEU SER MSE SEQRES 15 A 282 GLY LEU THR GLU LEU ALA PRO GLY ASN LEU TRP ASN THR SEQRES 16 A 282 MSE PRO CYS HIS THR HIS GLU ARG ARG MSE GLU VAL TYR SEQRES 17 A 282 PHE TYR PHE ASN MSE ASP ASP ASP ALA CYS VAL PHE HIS SEQRES 18 A 282 MSE MSE GLY GLN PRO GLN GLU THR ARG HIS ILE VAL MSE SEQRES 19 A 282 HIS ASN GLU GLN ALA VAL ILE SER PRO SER TRP SER ILE SEQRES 20 A 282 HIS SER GLY VAL GLY THR LYS ALA TYR THR PHE ILE TRP SEQRES 21 A 282 GLY MSE VAL GLY GLU ASN GLN VAL PHE ASP ASP MSE ASP SEQRES 22 A 282 HIS VAL ALA VAL LYS GLU ILE CYS ALA SEQRES 1 B 282 GLY SER ALA MET ASP VAL ARG GLN SER ILE HIS SER ALA SEQRES 2 B 282 HIS ALA LYS THR LEU ASP THR GLN GLY LEU ARG ASN GLU SEQRES 3 B 282 PHE LEU VAL GLU LYS VAL PHE VAL ALA ASP GLU TYR THR SEQRES 4 B 282 MSE VAL TYR SER HIS ILE ASP ARG ILE ILE VAL GLY GLY SEQRES 5 B 282 ILE MSE PRO ILE THR LYS THR VAL SER VAL GLY GLY GLU SEQRES 6 B 282 VAL GLY LYS GLN LEU GLY VAL SER TYR PHE LEU GLU ARG SEQRES 7 B 282 ARG GLU LEU GLY VAL ILE ASN ILE GLY GLY ALA GLY THR SEQRES 8 B 282 ILE THR VAL ASP GLY GLN CYS TYR GLU ILE GLY HIS ARG SEQRES 9 B 282 ASP ALA LEU TYR VAL GLY LYS GLY ALA LYS GLU VAL VAL SEQRES 10 B 282 PHE ALA SER ILE ASP THR GLY THR PRO ALA LYS PHE TYR SEQRES 11 B 282 TYR ASN CYS ALA PRO ALA HIS THR THR TYR PRO THR LYS SEQRES 12 B 282 LYS VAL THR PRO ASP GLU VAL SER PRO VAL THR LEU GLY SEQRES 13 B 282 ASP ASN LEU THR SER ASN ARG ARG THR ILE ASN LYS TYR SEQRES 14 B 282 PHE VAL PRO ASP VAL LEU GLU THR CYS GLN LEU SER MSE SEQRES 15 B 282 GLY LEU THR GLU LEU ALA PRO GLY ASN LEU TRP ASN THR SEQRES 16 B 282 MSE PRO CYS HIS THR HIS GLU ARG ARG MSE GLU VAL TYR SEQRES 17 B 282 PHE TYR PHE ASN MSE ASP ASP ASP ALA CYS VAL PHE HIS SEQRES 18 B 282 MSE MSE GLY GLN PRO GLN GLU THR ARG HIS ILE VAL MSE SEQRES 19 B 282 HIS ASN GLU GLN ALA VAL ILE SER PRO SER TRP SER ILE SEQRES 20 B 282 HIS SER GLY VAL GLY THR LYS ALA TYR THR PHE ILE TRP SEQRES 21 B 282 GLY MSE VAL GLY GLU ASN GLN VAL PHE ASP ASP MSE ASP SEQRES 22 B 282 HIS VAL ALA VAL LYS GLU ILE CYS ALA MODRES 1XRU MSE A 37 MET SELENOMETHIONINE MODRES 1XRU MSE A 51 MET SELENOMETHIONINE MODRES 1XRU MSE A 179 MET SELENOMETHIONINE MODRES 1XRU MSE A 193 MET SELENOMETHIONINE MODRES 1XRU MSE A 202 MET SELENOMETHIONINE MODRES 1XRU MSE A 210 MET SELENOMETHIONINE MODRES 1XRU MSE A 219 MET SELENOMETHIONINE MODRES 1XRU MSE A 220 MET SELENOMETHIONINE MODRES 1XRU MSE A 231 MET SELENOMETHIONINE MODRES 1XRU MSE A 259 MET SELENOMETHIONINE MODRES 1XRU MSE A 269 MET SELENOMETHIONINE MODRES 1XRU MSE B 37 MET SELENOMETHIONINE MODRES 1XRU MSE B 51 MET SELENOMETHIONINE MODRES 1XRU MSE B 179 MET SELENOMETHIONINE MODRES 1XRU MSE B 193 MET SELENOMETHIONINE MODRES 1XRU MSE B 202 MET SELENOMETHIONINE MODRES 1XRU MSE B 210 MET SELENOMETHIONINE MODRES 1XRU MSE B 219 MET SELENOMETHIONINE MODRES 1XRU MSE B 220 MET SELENOMETHIONINE MODRES 1XRU MSE B 231 MET SELENOMETHIONINE MODRES 1XRU MSE B 259 MET SELENOMETHIONINE MODRES 1XRU MSE B 269 MET SELENOMETHIONINE HET MSE A 37 8 HET MSE A 51 8 HET MSE A 179 8 HET MSE A 193 8 HET MSE A 202 8 HET MSE A 210 8 HET MSE A 219 8 HET MSE A 220 8 HET MSE A 231 8 HET MSE A 259 8 HET MSE A 269 8 HET MSE B 37 8 HET MSE B 51 8 HET MSE B 179 8 HET MSE B 193 8 HET MSE B 202 8 HET MSE B 210 8 HET MSE B 219 8 HET MSE B 220 8 HET MSE B 231 8 HET MSE B 259 8 HET MSE B 269 8 HET ZN A 501 1 HET ZN B 502 1 HET 1PE A 503 16 HET 1PE B 504 16 HETNAM MSE SELENOMETHIONINE HETNAM ZN ZINC ION HETNAM 1PE PENTAETHYLENE GLYCOL HETSYN 1PE PEG400 FORMUL 1 MSE 22(C5 H11 N O2 SE) FORMUL 3 ZN 2(ZN 2+) FORMUL 5 1PE 2(C10 H22 O6) FORMUL 7 HOH *457(H2 O) HELIX 1 1 HIS A 8 LYS A 13 1 6 HELIX 2 2 ASP A 16 PHE A 24 1 9 HELIX 3 3 GLY A 60 LEU A 67 1 8 HELIX 4 4 THR A 143 SER A 148 1 6 HELIX 5 5 ASP A 154 SER A 158 5 5 HELIX 6 6 ALA A 273 CYS A 278 1 6 HELIX 7 7 HIS B 8 LYS B 13 1 6 HELIX 8 8 ASP B 16 PHE B 24 1 9 HELIX 9 9 GLY B 60 LEU B 67 1 8 HELIX 10 10 THR B 143 VAL B 147 5 5 HELIX 11 11 ASP B 154 SER B 158 5 5 HELIX 12 12 ALA B 273 CYS B 278 1 6 SHEET 1 A 7 ASP A 2 ARG A 4 0 SHEET 2 A 7 VAL A 38 SER A 40 1 O TYR A 39 N ARG A 4 SHEET 3 A 7 ILE A 45 ILE A 50 -1 O VAL A 47 N VAL A 38 SHEET 4 A 7 PHE A 126 PRO A 132 -1 O CYS A 130 N ILE A 46 SHEET 5 A 7 ARG A 76 ASN A 82 -1 N GLU A 77 O ALA A 131 SHEET 6 A 7 ALA A 103 VAL A 106 -1 O VAL A 106 N LEU A 78 SHEET 7 A 7 LYS A 140 VAL A 142 -1 O LYS A 140 N TYR A 105 SHEET 1 B 7 LEU A 25 VAL A 26 0 SHEET 2 B 7 GLN A 235 SER A 239 -1 O ALA A 236 N VAL A 26 SHEET 3 B 7 ARG A 201 PHE A 208 -1 N TYR A 205 O VAL A 237 SHEET 4 B 7 THR A 254 GLY A 261 -1 O THR A 254 N PHE A 208 SHEET 5 B 7 SER A 178 LEU A 184 -1 N SER A 178 O MSE A 259 SHEET 6 B 7 ARG A 161 PHE A 167 -1 N ASN A 164 O LEU A 181 SHEET 7 B 7 VAL A 150 LEU A 152 -1 N VAL A 150 O ILE A 163 SHEET 1 C 4 VAL A 57 VAL A 59 0 SHEET 2 C 4 VAL A 113 SER A 117 -1 O PHE A 115 N VAL A 57 SHEET 3 C 4 GLY A 87 VAL A 91 -1 N THR A 90 O VAL A 114 SHEET 4 C 4 GLN A 94 ILE A 98 -1 O GLN A 94 N VAL A 91 SHEET 1 D 4 TRP A 190 ASN A 191 0 SHEET 2 D 4 ILE A 244 GLY A 249 -1 O GLY A 247 N ASN A 191 SHEET 3 D 4 VAL A 216 GLN A 222 -1 N MSE A 219 O SER A 246 SHEET 4 D 4 GLU A 225 MSE A 231 -1 O MSE A 231 N VAL A 216 SHEET 1 E 2 CYS A 195 THR A 197 0 SHEET 2 E 2 ASP A 270 VAL A 272 -1 O ASP A 270 N THR A 197 SHEET 1 F 7 ASP B 2 ARG B 4 0 SHEET 2 F 7 VAL B 38 SER B 40 1 O TYR B 39 N ARG B 4 SHEET 3 F 7 ILE B 45 ILE B 50 -1 O VAL B 47 N VAL B 38 SHEET 4 F 7 PHE B 126 PRO B 132 -1 O CYS B 130 N ILE B 46 SHEET 5 F 7 ARG B 76 ASN B 82 -1 N GLU B 77 O ALA B 131 SHEET 6 F 7 ALA B 103 VAL B 106 -1 O VAL B 106 N LEU B 78 SHEET 7 F 7 LYS B 140 VAL B 142 -1 O VAL B 142 N ALA B 103 SHEET 1 G 7 LEU B 25 VAL B 26 0 SHEET 2 G 7 GLN B 235 SER B 239 -1 O ALA B 236 N VAL B 26 SHEET 3 G 7 ARG B 201 PHE B 208 -1 N TYR B 205 O VAL B 237 SHEET 4 G 7 THR B 254 GLY B 261 -1 O THR B 254 N PHE B 208 SHEET 5 G 7 SER B 178 LEU B 184 -1 N THR B 182 O PHE B 255 SHEET 6 G 7 ARG B 161 PHE B 167 -1 N ASN B 164 O LEU B 181 SHEET 7 G 7 VAL B 150 LEU B 152 -1 N VAL B 150 O ILE B 163 SHEET 1 H 4 VAL B 57 VAL B 59 0 SHEET 2 H 4 VAL B 113 SER B 117 -1 O PHE B 115 N VAL B 57 SHEET 3 H 4 GLY B 87 VAL B 91 -1 N THR B 90 O VAL B 114 SHEET 4 H 4 GLN B 94 ILE B 98 -1 O GLN B 94 N VAL B 91 SHEET 1 I 2 CYS B 195 THR B 197 0 SHEET 2 I 2 ASP B 270 VAL B 272 -1 O ASP B 270 N THR B 197 SHEET 1 J 3 GLU B 225 MSE B 231 0 SHEET 2 J 3 VAL B 216 GLN B 222 -1 N MSE B 220 O ARG B 227 SHEET 3 J 3 ILE B 244 GLY B 249 -1 O SER B 246 N MSE B 219 LINK C THR A 36 N MSE A 37 1555 1555 1.32 LINK C MSE A 37 N VAL A 38 1555 1555 1.33 LINK C ILE A 50 N MSE A 51 1555 1555 1.33 LINK C MSE A 51 N PRO A 52 1555 1555 1.34 LINK C SER A 178 N MSE A 179 1555 1555 1.33 LINK C MSE A 179 N GLY A 180 1555 1555 1.33 LINK C THR A 192 N MSE A 193 1555 1555 1.33 LINK C MSE A 193 N PRO A 194 1555 1555 1.34 LINK C ARG A 201 N MSE A 202 1555 1555 1.33 LINK C MSE A 202 N GLU A 203 1555 1555 1.33 LINK C ASN A 209 N MSE A 210 1555 1555 1.33 LINK C MSE A 210 N ASP A 211 1555 1555 1.33 LINK C HIS A 218 N MSE A 219 1555 1555 1.33 LINK C MSE A 219 N MSE A 220 1555 1555 1.33 LINK C MSE A 220 N GLY A 221 1555 1555 1.33 LINK C VAL A 230 N MSE A 231 1555 1555 1.33 LINK C MSE A 231 N HIS A 232 1555 1555 1.33 LINK C GLY A 258 N MSE A 259 1555 1555 1.33 LINK C MSE A 259 N VAL A 260 1555 1555 1.33 LINK C ASP A 268 N MSE A 269 1555 1555 1.33 LINK C MSE A 269 N ASP A 270 1555 1555 1.33 LINK ZN ZN A 501 NE2 HIS A 245 1555 1555 2.04 LINK ZN ZN A 501 OE1 GLU A 203 1555 1555 1.88 LINK ZN ZN A 501 NE2 HIS A 198 1555 1555 2.08 LINK ZN ZN A 501 NE2 HIS A 196 1555 1555 2.23 LINK C THR B 36 N MSE B 37 1555 1555 1.32 LINK C MSE B 37 N VAL B 38 1555 1555 1.33 LINK C ILE B 50 N MSE B 51 1555 1555 1.33 LINK C MSE B 51 N PRO B 52 1555 1555 1.34 LINK C SER B 178 N MSE B 179 1555 1555 1.33 LINK C MSE B 179 N GLY B 180 1555 1555 1.33 LINK C THR B 192 N MSE B 193 1555 1555 1.33 LINK C MSE B 193 N PRO B 194 1555 1555 1.35 LINK C ARG B 201 N MSE B 202 1555 1555 1.33 LINK C MSE B 202 N GLU B 203 1555 1555 1.33 LINK C ASN B 209 N MSE B 210 1555 1555 1.33 LINK C MSE B 210 N ASP B 211 1555 1555 1.33 LINK C HIS B 218 N MSE B 219 1555 1555 1.33 LINK C MSE B 219 N MSE B 220 1555 1555 1.33 LINK C MSE B 220 N GLY B 221 1555 1555 1.33 LINK C VAL B 230 N MSE B 231 1555 1555 1.32 LINK C MSE B 231 N HIS B 232 1555 1555 1.33 LINK C GLY B 258 N MSE B 259 1555 1555 1.33 LINK C MSE B 259 N VAL B 260 1555 1555 1.33 LINK C ASP B 268 N MSE B 269 1555 1555 1.33 LINK C MSE B 269 N ASP B 270 1555 1555 1.33 LINK ZN ZN B 502 NE2 HIS B 198 1555 1555 2.07 LINK ZN ZN B 502 NE2 HIS B 245 1555 1555 2.08 LINK ZN ZN B 502 NE2 HIS B 196 1555 1555 2.22 LINK ZN ZN B 502 OE2 GLU B 203 1555 1555 1.91 CISPEP 1 MSE A 193 PRO A 194 0 0.01 CISPEP 2 MSE B 193 PRO B 194 0 0.03 SITE 1 AC1 4 HIS A 196 HIS A 198 GLU A 203 HIS A 245 SITE 1 AC2 4 HIS B 196 HIS B 198 GLU B 203 HIS B 245 SITE 1 AC3 6 ILE A 163 LYS A 165 VAL A 168 TRP A 257 SITE 2 AC3 6 PHE A 266 HOH A 712 SITE 1 AC4 7 ILE B 163 LYS B 165 VAL B 168 TRP B 257 SITE 2 AC4 7 PHE B 266 HOH B 682 HOH B 738 CRYST1 102.972 102.972 176.862 90.00 90.00 120.00 H 3 18 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 0.009711 0.005607 0.000000 0.00000 SCALE2 0.000000 0.011214 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005654 0.00000