HEADER NUCLEOTIDYLTRANSFERASE 16-JUN-96 1HXQ TITLE THE STRUCTURE OF NUCLEOTIDYLATED GALACTOSE-1-PHOSPHATE TITLE 2 URIDYLYLTRANSFERASE FROM ESCHERICHIA COLI AT 1.86 ANGSTROMS TITLE 3 RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEXOSE-1-PHOSPHATE URIDYLYLTRANSFERASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: ALPHA-D-GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE, COMPND 5 GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE-URIDYLYLATED HIS 166; COMPND 6 EC: 2.7.7.12; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 CELL_LINE: BL21; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3) PLYSS; SOURCE 8 EXPRESSION_SYSTEM_VECTOR: PET VECTOR SYSTEM; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PTZ18ROT; SOURCE 10 EXPRESSION_SYSTEM_GENE: GALT KEYWDS METALLOENZYME, NUCLEOTIDYLATED HISTIDINE, REACTION INTERMEDIATE, KEYWDS 2 NUCLEOTIDYLTRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.E.WEDEKIND,P.A.FREY,I.RAYMENT REVDAT 3 29-NOV-17 1HXQ 1 HELIX REVDAT 2 24-FEB-09 1HXQ 1 VERSN REVDAT 1 22-OCT-97 1HXQ 0 JRNL AUTH J.E.WEDEKIND,P.A.FREY,I.RAYMENT JRNL TITL THE STRUCTURE OF NUCLEOTIDYLATED HISTIDINE-166 OF JRNL TITL 2 GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE PROVIDES INSIGHT JRNL TITL 3 INTO PHOSPHORYL GROUP TRANSFER. JRNL REF BIOCHEMISTRY V. 35 11560 1996 JRNL REFN ISSN 0006-2960 JRNL PMID 8794735 JRNL DOI 10.1021/BI9612677 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.E.WEDEKIND,P.A.FREY,I.RAYMENT REMARK 1 TITL THREE-DIMENSIONAL STRUCTURE OF GALACTOSE-1-PHOSPHATE REMARK 1 TITL 2 URIDYLYLTRANSFERASE FROM ESCHERICHIA COLI AT 1.8 A REMARK 1 TITL 3 RESOLUTION REMARK 1 REF BIOCHEMISTRY V. 34 11049 1995 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH F.J.RUZICKA,J.E.WEDEKIND,J.KIM,I.RAYMENT,P.A.FREY REMARK 1 TITL GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE FROM ESCHERICHIA REMARK 1 TITL 2 COLI, A ZINC AND IRON METALLOENZYME REMARK 1 REF BIOCHEMISTRY V. 34 5610 1995 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 3 REMARK 1 AUTH J.E.WEDEKIND,P.A.FREY,I.RAYMENT REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY CRYSTALLOGRAPHIC ANALYSIS OF REMARK 1 TITL 2 GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE FROM ESCHERICHIA REMARK 1 TITL 3 COLI REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 50 329 1994 REMARK 1 REFN ISSN 0907-4449 REMARK 1 REFERENCE 4 REMARK 1 AUTH T.L.CORNWELL,S.L.ADHYA,W.S.REZNIKOFF,P.A.FREY REMARK 1 TITL THE NUCLEOTIDE SEQUENCE OF THE GAL T GENE OF ESCHERICHIA REMARK 1 TITL 2 COLI REMARK 1 REF NUCLEIC ACIDS RES. V. 15 8116 1987 REMARK 1 REFN ISSN 0305-1048 REMARK 2 REMARK 2 RESOLUTION. 1.86 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT 5E REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.86 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 65.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 3 NUMBER OF REFLECTIONS : 206202 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.196 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 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.1960 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) : 70581 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5405 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 44 REMARK 3 SOLVENT ATOMS : 730 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : 19.100 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.013 ; 7.000 ; 5614 REMARK 3 BOND ANGLES (DEGREES) : 2.146 ; 4.000 ; 7667 REMARK 3 TORSION ANGLES (DEGREES) : 16.186; 0.000 ; 2925 REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : 28.968; 1.000 ; 49 REMARK 3 TRIGONAL CARBON PLANES (A) : 0.003 ; 40.000; 144 REMARK 3 GENERAL PLANES (A) : 0.005 ; 120.00; 816 REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : TNT REMARK 3 KSOL : 0.70 REMARK 3 BSOL : 526.0 REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 REGIONS A 36 THROUGH A 44 AND B 31 THROUGH B 43 ARE REMARK 3 DISORDERED. NO SIGNIFICANT ELECTRON DENSITY CAN BE SEEN REMARK 3 FOR THESE REGIONS AT THE RESOLUTION OF THE REFINED MODEL. REMARK 3 RESIDUES B 347 AND B 348 OF SUBUNIT II ARE DISORDERED AS REMARK 3 WELL. REMARK 4 REMARK 4 1HXQ 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_1000174069. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 1995 REMARK 200 TEMPERATURE (KELVIN) : 113 REMARK 200 PH : 7.1 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : SUPPER DOUBLE-FOCUSING MIRRORS REMARK 200 WITH NICKEL FOIL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS HI-STAR REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SAINT, XSCALIBRE REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 70581 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.860 REMARK 200 RESOLUTION RANGE LOW (A) : 65.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 2.500 REMARK 200 R MERGE (I) : 0.06300 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: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.77 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: EACH CRYSTAL WAS REACTED WITH REMARK 280 SUBSTRATE UDP-GLUCOSE IN A SYNTHETIC MOTHER LIQUOR DEVOID OF REMARK 280 LITHIUM SULFATE AT PH 7.1. REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 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 -X+1/2,Y+1/2,-Z REMARK 290 4555 X+1/2,-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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 28.60000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 107.70000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 28.60000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 107.70000 REMARK 290 SMTRY3 4 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 300 REMARK: THE CRYSTALLOGRAPHICALLY INDEPENDENT UNIT IS ONE DIMER OF REMARK 300 CHEMICALLY IDENTICAL SUBUNITS. 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 7750 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 25970 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -67.0 KCAL/MOL 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 400 REMARK 400 COMPOUND REMARK 400 GLN 168 MAKES CLOSE CONTACTS TO O2 OF THE U5P PHOSPHORYL REMARK 400 GROUP. MUTATION OF THIS RESIDUE TO ARG HAS BEEN INVOKED AS REMARK 400 A PREDOMINANT CAUSE OF THE HUMAN METABOLIC DISEASE REMARK 400 GALACTOSEMIA. GLN 168 MAY PLAY A ROLE IN BINDING THE REMARK 400 BETA-PHOSPHORYL GROUP OF THE HEXOSE-1-PHOSPHATE SUBSTRATE REMARK 400 AS WELL. 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 GLN A 37 REMARK 465 GLU A 38 REMARK 465 THR A 39 REMARK 465 PRO A 40 REMARK 465 ALA A 41 REMARK 465 LYS A 42 REMARK 465 GLN A 43 REMARK 465 MET B 1 REMARK 465 ARG B 31 REMARK 465 PRO B 32 REMARK 465 TRP B 33 REMARK 465 GLN B 34 REMARK 465 GLY B 35 REMARK 465 ALA B 36 REMARK 465 GLN B 37 REMARK 465 GLU B 38 REMARK 465 THR B 39 REMARK 465 PRO B 40 REMARK 465 ALA B 41 REMARK 465 LYS B 42 REMARK 465 GLN B 43 REMARK 465 VAL B 348 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 289 CG CD OE1 OE2 REMARK 470 GLY B 347 CA C O 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 O HOH A 354 O HOH A 644 1.82 REMARK 500 OH TYR B 14 O HOH B 538 1.83 REMARK 500 O HOH A 738 O HOH A 739 1.87 REMARK 500 OE1 GLU A 188 O HOH A 547 1.94 REMARK 500 O HOH A 703 O HOH A 704 1.99 REMARK 500 NH2 ARG B 344 O HOH B 551 2.00 REMARK 500 OD2 ASP A 94 NH2 ARG B 204 2.00 REMARK 500 OG SER B 346 O HOH B 669 2.02 REMARK 500 O VAL B 44 O HOH B 550 2.06 REMARK 500 ND2 ASN A 162 O HOH A 744 2.08 REMARK 500 O HOH A 744 O HOH A 745 2.09 REMARK 500 O HOH B 668 O HOH B 671 2.18 REMARK 500 OE1 GLU B 188 O HOH B 543 2.18 REMARK 500 O HOH A 634 O HOH A 635 2.18 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 VAL A 7 CB - CA - C ANGL. DEV. = -11.9 DEGREES REMARK 500 PRO A 50 C - N - CA ANGL. DEV. = 10.5 DEGREES REMARK 500 PRO A 50 C - N - CD ANGL. DEV. = -15.9 DEGREES REMARK 500 VAL A 223 N - CA - C ANGL. DEV. = -22.7 DEGREES REMARK 500 GLN A 291 CB - CA - C ANGL. DEV. = -12.9 DEGREES REMARK 500 ARG B 211 NE - CZ - NH1 ANGL. DEV. = -3.1 DEGREES REMARK 500 VAL B 223 N - CA - C ANGL. DEV. = -22.0 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 PRO A 32 177.38 -58.10 REMARK 500 PHE A 79 54.28 -141.31 REMARK 500 TYR A 276 169.02 171.82 REMARK 500 PHE A 285 76.20 -100.41 REMARK 500 SER A 306 -167.35 -171.78 REMARK 500 ALA A 320 -66.33 -134.89 REMARK 500 PRO B 6 -5.18 -58.17 REMARK 500 PHE B 79 54.72 -140.83 REMARK 500 ASP B 208 -60.57 -94.32 REMARK 500 PRO B 224 155.53 -47.44 REMARK 500 VAL B 314 -155.08 -139.03 REMARK 500 ALA B 320 -63.20 -137.75 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 THIS ENTRY REPRESENTS THE STRUCTURE OF REMARK 600 GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE IN WHICH NE2 OF REMARK 600 HIS-166 IS COVALENTLY LINKED AS A PHOSPHORAMIDATE TO THE REMARK 600 ALPHA-PHOSPHORUS OF U5P. THIS IS A GENUINE REACTION REMARK 600 INTERMEDIATE IN THE NET DOUBLE DISPLACEMENT REACTION. REMARK 600 THE REACTION PROCEEDS WITH TWO DISPLACEMENTS AS FOLLOWS: REMARK 600 UDP-GLC + ENZYME-HIS 166 <--> GLC-1-P + ENZYME-HIS 166-U5P REMARK 600 ENZYME-HIS 166-U5P + GAL-1-P <--> UDP-GAL + ENZYME-HIS 166. REMARK 600 REMARK 600 THE NUCLEOTIDE IS BOUND PERPENDICULARLY TO STRANDS B(ETA) REMARK 600 -3, B(ETA)-6, B(ETA)-7 AND B(ETA)-8 OF THE HALF-BARREL. REMARK 600 REMARK 600 THE METAL COMPOSITION OF THIS ENZYME HAS BEEN REPORTED BY REMARK 600 RUZICKA ET AL., 1995. MOST LIKELY THE IRON SITE CONTAINS REMARK 600 A MIXTURE OF ZINC AND IRON. THERE IS NO CONFORMATIONAL REMARK 600 DISORDER. THE OCCUPANCY OF IRON HAS BEEN SET TO UNITY. REMARK 600 REMARK 600 THE OXIDATION STATE OF THE ZINC IS (II) MOST LIKELY. THE REMARK 600 IRON SITE IS LIKELY TO BE PREDOMINANTLY IN THE (III) STATE. 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 350 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 52 SG REMARK 620 2 CYS A 55 SG 114.5 REMARK 620 3 HIS A 115 ND1 111.2 107.9 REMARK 620 4 HIS A 164 ND1 112.6 107.5 102.3 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE A 351 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 182 OE1 REMARK 620 2 GLU A 182 OE2 60.7 REMARK 620 3 HIS A 281 ND1 89.0 104.4 REMARK 620 4 HIS A 296 NE2 80.9 125.6 112.5 REMARK 620 5 HIS A 298 NE2 166.2 108.5 102.6 101.0 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 350 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 52 SG REMARK 620 2 CYS B 55 SG 117.9 REMARK 620 3 HIS B 115 ND1 98.3 107.0 REMARK 620 4 HIS B 164 ND1 110.4 118.4 101.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE B 351 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 182 CD REMARK 620 2 GLU B 182 OE1 32.1 REMARK 620 3 GLU B 182 OE2 33.1 63.7 REMARK 620 4 HIS B 281 ND1 101.0 89.6 121.4 REMARK 620 5 HIS B 296 NE2 102.6 79.1 112.8 111.3 REMARK 620 6 HIS B 298 NE2 145.8 177.9 114.2 91.8 101.9 REMARK 620 N 1 2 3 4 5 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 350 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE A 351 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 350 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE B 351 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE U5P A 352 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE U5P B 352 DBREF 1HXQ A 1 348 UNP P09148 GAL7_ECOLI 1 348 DBREF 1HXQ B 1 348 UNP P09148 GAL7_ECOLI 1 348 SEQRES 1 A 348 MET THR GLN PHE ASN PRO VAL ASP HIS PRO HIS ARG ARG SEQRES 2 A 348 TYR ASN PRO LEU THR GLY GLN TRP ILE LEU VAL SER PRO SEQRES 3 A 348 HIS ARG ALA LYS ARG PRO TRP GLN GLY ALA GLN GLU THR SEQRES 4 A 348 PRO ALA LYS GLN VAL LEU PRO ALA HIS ASP PRO ASP CYS SEQRES 5 A 348 PHE LEU CYS ALA GLY ASN VAL ARG VAL THR GLY ASP LYS SEQRES 6 A 348 ASN PRO ASP TYR THR GLY THR TYR VAL PHE THR ASN ASP SEQRES 7 A 348 PHE ALA ALA LEU MET SER ASP THR PRO ASP ALA PRO GLU SEQRES 8 A 348 SER HIS ASP PRO LEU MET ARG CYS GLN SER ALA ARG GLY SEQRES 9 A 348 THR SER ARG VAL ILE CYS PHE SER PRO ASP HIS SER LYS SEQRES 10 A 348 THR LEU PRO GLU LEU SER VAL ALA ALA LEU THR GLU ILE SEQRES 11 A 348 VAL LYS THR TRP GLN GLU GLN THR ALA GLU LEU GLY LYS SEQRES 12 A 348 THR TYR PRO TRP VAL GLN VAL PHE GLU ASN LYS GLY ALA SEQRES 13 A 348 ALA MET GLY CYS SER ASN PRO HIS PRO HIS GLY GLN ILE SEQRES 14 A 348 TRP ALA ASN SER PHE LEU PRO ASN GLU ALA GLU ARG GLU SEQRES 15 A 348 ASP ARG LEU GLN LYS GLU TYR PHE ALA GLU GLN LYS SER SEQRES 16 A 348 PRO MET LEU VAL ASP TYR VAL GLN ARG GLU LEU ALA ASP SEQRES 17 A 348 GLY SER ARG THR VAL VAL GLU THR GLU HIS TRP LEU ALA SEQRES 18 A 348 VAL VAL PRO TYR TRP ALA ALA TRP PRO PHE GLU THR LEU SEQRES 19 A 348 LEU LEU PRO LYS ALA HIS VAL LEU ARG ILE THR ASP LEU SEQRES 20 A 348 THR ASP ALA GLN ARG SER ASP LEU ALA LEU ALA LEU LYS SEQRES 21 A 348 LYS LEU THR SER ARG TYR ASP ASN LEU PHE GLN CYS SER SEQRES 22 A 348 PHE PRO TYR SER MET GLY TRP HIS GLY ALA PRO PHE ASN SEQRES 23 A 348 GLY GLU GLU ASN GLN HIS TRP GLN LEU HIS ALA HIS PHE SEQRES 24 A 348 TYR PRO PRO LEU LEU ARG SER ALA THR VAL ARG LYS PHE SEQRES 25 A 348 MET VAL GLY TYR GLU MET LEU ALA GLU THR GLN ARG ASP SEQRES 26 A 348 LEU THR ALA GLU GLN ALA ALA GLU ARG LEU ARG ALA VAL SEQRES 27 A 348 SER ASP ILE HIS PHE ARG GLU SER GLY VAL SEQRES 1 B 348 MET THR GLN PHE ASN PRO VAL ASP HIS PRO HIS ARG ARG SEQRES 2 B 348 TYR ASN PRO LEU THR GLY GLN TRP ILE LEU VAL SER PRO SEQRES 3 B 348 HIS ARG ALA LYS ARG PRO TRP GLN GLY ALA GLN GLU THR SEQRES 4 B 348 PRO ALA LYS GLN VAL LEU PRO ALA HIS ASP PRO ASP CYS SEQRES 5 B 348 PHE LEU CYS ALA GLY ASN VAL ARG VAL THR GLY ASP LYS SEQRES 6 B 348 ASN PRO ASP TYR THR GLY THR TYR VAL PHE THR ASN ASP SEQRES 7 B 348 PHE ALA ALA LEU MET SER ASP THR PRO ASP ALA PRO GLU SEQRES 8 B 348 SER HIS ASP PRO LEU MET ARG CYS GLN SER ALA ARG GLY SEQRES 9 B 348 THR SER ARG VAL ILE CYS PHE SER PRO ASP HIS SER LYS SEQRES 10 B 348 THR LEU PRO GLU LEU SER VAL ALA ALA LEU THR GLU ILE SEQRES 11 B 348 VAL LYS THR TRP GLN GLU GLN THR ALA GLU LEU GLY LYS SEQRES 12 B 348 THR TYR PRO TRP VAL GLN VAL PHE GLU ASN LYS GLY ALA SEQRES 13 B 348 ALA MET GLY CYS SER ASN PRO HIS PRO HIS GLY GLN ILE SEQRES 14 B 348 TRP ALA ASN SER PHE LEU PRO ASN GLU ALA GLU ARG GLU SEQRES 15 B 348 ASP ARG LEU GLN LYS GLU TYR PHE ALA GLU GLN LYS SER SEQRES 16 B 348 PRO MET LEU VAL ASP TYR VAL GLN ARG GLU LEU ALA ASP SEQRES 17 B 348 GLY SER ARG THR VAL VAL GLU THR GLU HIS TRP LEU ALA SEQRES 18 B 348 VAL VAL PRO TYR TRP ALA ALA TRP PRO PHE GLU THR LEU SEQRES 19 B 348 LEU LEU PRO LYS ALA HIS VAL LEU ARG ILE THR ASP LEU SEQRES 20 B 348 THR ASP ALA GLN ARG SER ASP LEU ALA LEU ALA LEU LYS SEQRES 21 B 348 LYS LEU THR SER ARG TYR ASP ASN LEU PHE GLN CYS SER SEQRES 22 B 348 PHE PRO TYR SER MET GLY TRP HIS GLY ALA PRO PHE ASN SEQRES 23 B 348 GLY GLU GLU ASN GLN HIS TRP GLN LEU HIS ALA HIS PHE SEQRES 24 B 348 TYR PRO PRO LEU LEU ARG SER ALA THR VAL ARG LYS PHE SEQRES 25 B 348 MET VAL GLY TYR GLU MET LEU ALA GLU THR GLN ARG ASP SEQRES 26 B 348 LEU THR ALA GLU GLN ALA ALA GLU ARG LEU ARG ALA VAL SEQRES 27 B 348 SER ASP ILE HIS PHE ARG GLU SER GLY VAL HET ZN A 350 1 HET FE A 351 1 HET U5P A 352 20 HET ZN B 350 1 HET FE B 351 1 HET U5P B 352 20 HETNAM ZN ZINC ION HETNAM FE FE (III) ION HETNAM U5P URIDINE-5'-MONOPHOSPHATE FORMUL 3 ZN 2(ZN 2+) FORMUL 4 FE 2(FE 3+) FORMUL 5 U5P 2(C9 H13 N2 O9 P) FORMUL 9 HOH *730(H2 O) HELIX 1 H1 VAL A 124 LEU A 141 1 18 HELIX 2 H2 ASN A 177 GLN A 193 1 17 HELIX 3 H3 MET A 197 ASP A 208 1 12 HELIX 4 H4 ASP A 249 ASP A 267 1 19 HELIX 5 H5 GLY A 315 LEU A 319 1 5 HELIX 6 H6 ALA A 328 ALA A 337 1 10 HELIX 7 H7 VAL B 124 LEU B 141 1 18 HELIX 8 H8 ASN B 177 GLN B 193 1 17 HELIX 9 H9 MET B 197 ASP B 208 1 12 HELIX 10 H10 ASP B 249 ASP B 267 1 19 HELIX 11 H11 GLY B 315 LEU B 319 1 5 HELIX 12 H12 ALA B 328 ALA B 337 1 10 SHEET 1 A 3 GLN A 20 VAL A 24 0 SHEET 2 A 3 HIS A 11 ASN A 15 -1 N ASN A 15 O GLN A 20 SHEET 3 A 3 CYS B 99 SER B 101 -1 N GLN B 100 O ARG A 12 SHEET 1 B 9 TYR A 73 THR A 76 0 SHEET 2 B 9 GLY A 104 CYS A 110 -1 N CYS A 110 O TYR A 73 SHEET 3 B 9 HIS A 166 ASN A 172 -1 N ALA A 171 O THR A 105 SHEET 4 B 9 TRP A 147 LYS A 154 -1 N PHE A 151 O GLN A 168 SHEET 5 B 9 TYR A 276 HIS A 281 -1 N MET A 278 O GLU A 152 SHEET 6 B 9 HIS A 296 TYR A 300 -1 N TYR A 300 O SER A 277 SHEET 7 B 9 THR A 233 PRO A 237 -1 N LEU A 235 O ALA A 297 SHEET 8 B 9 TRP A 219 VAL A 222 -1 N VAL A 222 O LEU A 234 SHEET 9 B 9 THR A 212 GLU A 215 -1 N VAL A 214 O ALA A 221 SHEET 1 C 3 CYS A 99 SER A 101 0 SHEET 2 C 3 HIS B 11 ASN B 15 -1 N ARG B 12 O GLN A 100 SHEET 3 C 3 GLN B 20 VAL B 24 -1 N VAL B 24 O HIS B 11 SHEET 1 D 9 TYR B 73 THR B 76 0 SHEET 2 D 9 GLY B 104 CYS B 110 -1 N CYS B 110 O TYR B 73 SHEET 3 D 9 HIS B 166 ASN B 172 -1 N ALA B 171 O THR B 105 SHEET 4 D 9 TRP B 147 LYS B 154 -1 N PHE B 151 O GLN B 168 SHEET 5 D 9 TYR B 276 HIS B 281 -1 N MET B 278 O GLU B 152 SHEET 6 D 9 HIS B 296 TYR B 300 -1 N TYR B 300 O SER B 277 SHEET 7 D 9 THR B 233 PRO B 237 -1 N LEU B 235 O ALA B 297 SHEET 8 D 9 TRP B 219 VAL B 222 -1 N VAL B 222 O LEU B 234 SHEET 9 D 9 THR B 212 GLU B 215 -1 N VAL B 214 O ALA B 221 LINK ZN ZN A 350 SG CYS A 52 1555 1555 2.18 LINK ZN ZN A 350 SG CYS A 55 1555 1555 2.28 LINK ZN ZN A 350 ND1 HIS A 115 1555 1555 1.97 LINK ZN ZN A 350 ND1 HIS A 164 1555 1555 1.80 LINK FE FE A 351 OE1 GLU A 182 1555 1555 2.22 LINK FE FE A 351 OE2 GLU A 182 1555 1555 2.05 LINK FE FE A 351 ND1 HIS A 281 1555 1555 1.99 LINK FE FE A 351 NE2 HIS A 296 1555 1555 2.12 LINK FE FE A 351 NE2 HIS A 298 1555 1555 1.97 LINK P U5P A 352 NE2 HIS A 166 1555 1555 1.69 LINK ZN ZN B 350 SG CYS B 52 1555 1555 2.20 LINK ZN ZN B 350 SG CYS B 55 1555 1555 2.22 LINK ZN ZN B 350 ND1 HIS B 115 1555 1555 1.72 LINK ZN ZN B 350 ND1 HIS B 164 1555 1555 1.73 LINK FE FE B 351 CD GLU B 182 1555 1555 2.28 LINK FE FE B 351 OE1 GLU B 182 1555 1555 2.19 LINK FE FE B 351 OE2 GLU B 182 1555 1555 1.85 LINK FE FE B 351 ND1 HIS B 281 1555 1555 2.13 LINK FE FE B 351 NE2 HIS B 296 1555 1555 2.11 LINK FE FE B 351 NE2 HIS B 298 1555 1555 2.14 LINK P U5P B 352 NE2 HIS B 166 1555 1555 1.78 SITE 1 AC1 4 CYS A 52 CYS A 55 HIS A 115 HIS A 164 SITE 1 AC2 4 GLU A 182 HIS A 281 HIS A 296 HIS A 298 SITE 1 AC3 4 CYS B 52 CYS B 55 HIS B 115 HIS B 164 SITE 1 AC4 4 GLU B 182 HIS B 281 HIS B 296 HIS B 298 SITE 1 AC5 11 ARG A 60 VAL A 61 ASN A 77 ASP A 78 SITE 2 AC5 11 VAL A 108 CYS A 160 HIS A 166 GLN A 168 SITE 3 AC5 11 HOH A 516 HOH A 518 HOH A 519 SITE 1 AC6 12 PHE B 53 ARG B 60 VAL B 61 ASN B 77 SITE 2 AC6 12 ASP B 78 VAL B 108 CYS B 160 HIS B 166 SITE 3 AC6 12 GLN B 168 HOH B 359 HOH B 394 HOH B 614 CRYST1 57.200 215.400 68.900 90.00 90.00 90.00 P 21 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 0.017483 0.000000 0.000000 0.00000 SCALE2 0.000000 0.004643 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014514 0.00000 MTRIX1 1 0.943730 -0.002810 0.330710 -10.90264 1 MTRIX2 1 -0.002970 -1.000000 -0.000020 158.00136 1 MTRIX3 1 0.330710 -0.000960 -0.943730 65.75232 1