HEADER TRANSFERASE 29-JAN-01 1I0I TITLE ANALYSIS OF AN INVARIANT ASPARTIC ACID IN HPRTS-GLUTAMINE MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 2.4.2.8; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TRYPANOSOMA CRUZI; SOURCE 3 ORGANISM_TAXID: 5693; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PHOSPHORIBOSYLTRANSFERASE, NUCLEOTIDE METABOLISM, PURINE SALVAGE, KEYWDS 2 TERNARY COMPLEX, CATALYTIC BASE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR B.CANYUK,P.J.FOCIA,A.E.EAKIN REVDAT 8 09-AUG-23 1I0I 1 REMARK REVDAT 7 27-OCT-21 1I0I 1 SEQADV HETSYN REVDAT 6 29-JUL-20 1I0I 1 COMPND REMARK HETNAM LINK REVDAT 6 2 1 SITE REVDAT 5 31-JAN-18 1I0I 1 REMARK REVDAT 4 24-FEB-09 1I0I 1 VERSN REVDAT 3 01-APR-03 1I0I 1 JRNL REVDAT 2 05-JUN-02 1I0I 1 REMARK SEQADV REVDAT 1 29-MAY-02 1I0I 0 JRNL AUTH B.CANYUK,P.J.FOCIA,A.E.EAKIN JRNL TITL THE ROLE FOR AN INVARIANT ASPARTIC ACID IN HYPOXANTHINE JRNL TITL 2 PHOSPHORIBOSYLTRANSFERASES IS EXAMINED USING SATURATION JRNL TITL 3 MUTAGENESIS, FUNCTIONAL ANALYSIS, AND X-RAY CRYSTALLOGRAPHY. JRNL REF BIOCHEMISTRY V. 40 2754 2001 JRNL REFN ISSN 0006-2960 JRNL PMID 11258886 JRNL DOI 10.1021/BI001195Q REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.J.FOCIA,S.P.CRAIG,A.E.EAKIN REMARK 1 TITL APPROACHING THE TRANSITION STATE IN THE CRYSTAL STRUCTURE OF REMARK 1 TITL 2 A PHOSPHORIBOSYLTRANSFERASE REMARK 1 REF BIOCHEMISTRY V. 37 17120 1998 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI9821465 REMARK 2 REMARK 2 RESOLUTION. 2.06 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.06 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.1 REMARK 3 NUMBER OF REFLECTIONS : 20837 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 SET) : 0.168 REMARK 3 FREE R VALUE : 0.259 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 7.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1363 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 : 3011 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 68 REMARK 3 SOLVENT ATOMS : 194 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 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) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 1.620 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : 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 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : PARAM11X.DNA REMARK 3 PARAMETER FILE 3 : PRPP.PAR REMARK 3 PARAMETER FILE 4 : PARAM19.ION REMARK 3 PARAMETER FILE 5 : PARAM11.WAT REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH11.DNA REMARK 3 TOPOLOGY FILE 3 : PRPP.TOP REMARK 3 TOPOLOGY FILE 4 : TOPH19.ION REMARK 3 TOPOLOGY FILE 5 : TOPH11.WAT REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: PATCH STATEMENTS WERE USED FOR CIS REMARK 3 PEPTIDES AND METAL-OXYGEN BONDS REMARK 4 REMARK 4 1I0I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-FEB-01. REMARK 100 THE DEPOSITION ID IS D_1000012753. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-JUL-98 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS II REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22986 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.060 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.1 REMARK 200 DATA REDUNDANCY : 4.500 REMARK 200 R MERGE (I) : 0.06800 REMARK 200 R SYM (I) : 0.06800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 17.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.06 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 56.2 REMARK 200 DATA REDUNDANCY IN SHELL : 4.00 REMARK 200 R MERGE FOR SHELL (I) : 0.41100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL 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 1TC2 WITH LIGANDS, WATERS AND LOOP II REMARK 200 REMOVED REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000, SODIUM ACETATE, AMMONIUM REMARK 280 ACETATE, PH 4.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 277.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 50.63500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 5530 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 15630 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -68.0 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 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 PRO A 2 REMARK 465 ARG A 3 REMARK 465 GLU A 4 REMARK 465 GLU A 192 REMARK 465 ARG A 193 REMARK 465 GLU A 194 REMARK 465 ALA A 195 REMARK 465 ALA A 196 REMARK 465 ARG A 197 REMARK 465 GLY A 198 REMARK 465 LYS A 199 REMARK 465 LYS A 200 REMARK 465 GLN A 201 REMARK 465 ARG A 202 REMARK 465 ALA A 203 REMARK 465 ILE A 204 REMARK 465 GLY A 205 REMARK 465 SER A 206 REMARK 465 ALA A 207 REMARK 465 ASP A 208 REMARK 465 THR A 209 REMARK 465 ASP A 210 REMARK 465 ARG A 211 REMARK 465 ASP A 212 REMARK 465 ALA A 213 REMARK 465 LYS A 214 REMARK 465 ARG A 215 REMARK 465 GLU A 216 REMARK 465 PHE A 217 REMARK 465 HIS A 218 REMARK 465 SER A 219 REMARK 465 LYS A 220 REMARK 465 TYR A 221 REMARK 465 MET B 1 REMARK 465 PRO B 2 REMARK 465 ARG B 3 REMARK 465 GLU B 4 REMARK 465 LYS B 199 REMARK 465 LYS B 200 REMARK 465 GLN B 201 REMARK 465 ARG B 202 REMARK 465 ALA B 203 REMARK 465 ILE B 204 REMARK 465 GLY B 205 REMARK 465 SER B 206 REMARK 465 ALA B 207 REMARK 465 ASP B 208 REMARK 465 THR B 209 REMARK 465 ASP B 210 REMARK 465 ARG B 211 REMARK 465 ASP B 212 REMARK 465 ALA B 213 REMARK 465 LYS B 214 REMARK 465 ARG B 215 REMARK 465 GLU B 216 REMARK 465 PHE B 217 REMARK 465 HIS B 218 REMARK 465 SER B 219 REMARK 465 LYS B 220 REMARK 465 TYR B 221 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 6 CG CD OE1 OE2 REMARK 470 LYS A 27 CG CD CE NZ REMARK 470 ARG A 28 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 34 CG CD CE NZ REMARK 470 ARG A 39 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 84 CG CD OE1 OE2 REMARK 470 ARG A 99 CG CD NE CZ NH1 NH2 REMARK 470 ARG A 131 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 145 CG CD OE1 OE2 REMARK 470 GLU A 188 CG CD OE1 OE2 REMARK 470 TYR A 190 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 GLU B 24 CG CD OE1 OE2 REMARK 470 LYS B 34 CG CD CE NZ REMARK 470 ARG B 99 CG CD NE CZ NH1 NH2 REMARK 470 ARG B 193 CG CD NE CZ NH1 NH2 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 TYR A 41 -60.21 65.56 REMARK 500 GLU A 84 118.89 58.80 REMARK 500 SER A 89 -2.82 -43.58 REMARK 500 GLN A 115 -78.06 -134.27 REMARK 500 TYR A 190 31.05 -82.74 REMARK 500 TYR B 41 -58.02 71.30 REMARK 500 ASN B 43 54.81 -149.34 REMARK 500 SER B 81 -46.61 -149.90 REMARK 500 GLN B 115 -84.32 -128.95 REMARK 500 ASN B 162 3.74 -68.06 REMARK 500 TYR B 176 -1.76 75.16 REMARK 500 REMARK 500 REMARK: NULL 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 MG A 902 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 171 OD1 REMARK 620 2 PRP A 801 O1B 86.5 REMARK 620 3 PRP A 801 O2A 166.5 81.2 REMARK 620 4 HOH A1303 O 91.9 89.6 93.7 REMARK 620 5 HOH A1304 O 94.4 176.3 98.2 86.8 REMARK 620 6 HOH A1305 O 80.7 84.3 92.4 170.7 99.3 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 900 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PRP A 801 O1 REMARK 620 2 PRP A 801 O2 53.5 REMARK 620 3 PRP A 801 O3 62.5 71.4 REMARK 620 4 PRP A 801 O3B 77.5 81.4 139.7 REMARK 620 5 HOH A1301 O 162.4 109.5 110.6 106.2 REMARK 620 6 HOH A1302 O 81.7 135.2 88.7 90.4 115.0 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 912 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 171 OD1 REMARK 620 2 ASP B 171 OD2 44.6 REMARK 620 3 PRP B 811 O2A 162.3 150.0 REMARK 620 4 PRP B 811 O1B 77.0 95.3 89.2 REMARK 620 5 HOH B1306 O 99.9 56.7 93.2 99.2 REMARK 620 6 HOH B1307 O 86.4 73.7 106.6 163.3 85.3 REMARK 620 7 HOH B1308 O 75.7 117.1 92.7 87.0 171.4 87.0 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 910 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PRP B 811 O3B REMARK 620 2 PRP B 811 O3 153.1 REMARK 620 3 PRP B 811 O2 93.4 76.4 REMARK 620 4 PRP B 811 O1 80.2 72.9 62.2 REMARK 620 5 HOH B1309 O 95.3 110.7 99.3 160.4 REMARK 620 6 HOH B1310 O 83.0 91.6 145.8 83.7 114.9 REMARK 620 N 1 2 3 4 5 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1TC2 RELATED DB: PDB REMARK 900 TERNARY SUBSTRATES COMPLEX OF THE WILD TYPE HPRT FROM TRYPANOSOMA REMARK 900 CRUZI REMARK 900 RELATED ID: 1TC1 RELATED DB: PDB REMARK 900 ORIGINAL STRUCTURE OF THE WILD TYPE HPRT FROM TRYPANOSOMA CRUZI REMARK 900 RELATED ID: 1I0L RELATED DB: PDB REMARK 900 ANALYSIS OF AN INVARIANT ASPARTIC ACID IN HPRTS - ASPARAGINE MUTANT REMARK 900 RELATED ID: 1I13 RELATED DB: PDB REMARK 900 ANALYSIS OF AN INVARIANT ASPARTIC ACID IN HPRTS - ALANINE MUTANT REMARK 900 RELATED ID: 1I14 RELATED DB: PDB REMARK 900 ANALYSIS OF AN INVARIANT ASPARTIC ACID IN HPRTS - GLUTAMIC ACID REMARK 900 MUTANT REMARK 999 REMARK 999 SEQUENCE REMARK 999 THIS HPRT WAS CLONED FROM A DIFFERENT STRAIN OF REMARK 999 TRYPANOSOMA CRUZI AND VARIES FROM A PREVIOUSLY REMARK 999 REPORTED SEQUENCE AT LYS 23, CYS 66 AND LEU 86. DBREF 1I0I A 1 221 UNP Q27796 Q27796_TRYCR 1 221 DBREF 1I0I B 1 221 UNP Q27796 Q27796_TRYCR 1 221 SEQADV 1I0I LYS A 23 UNP Q27796 MET 23 SEE REMARK 999 SEQADV 1I0I CYS A 66 UNP Q27796 SER 66 SEE REMARK 999 SEQADV 1I0I LEU A 86 UNP Q27796 VAL 86 SEE REMARK 999 SEQADV 1I0I GLN A 115 UNP Q27796 ASP 115 ENGINEERED MUTATION SEQADV 1I0I LYS B 23 UNP Q27796 MET 23 SEE REMARK 999 SEQADV 1I0I CYS B 66 UNP Q27796 SER 66 SEE REMARK 999 SEQADV 1I0I LEU B 86 UNP Q27796 VAL 86 SEE REMARK 999 SEQADV 1I0I GLN B 115 UNP Q27796 ASP 115 ENGINEERED MUTATION SEQRES 1 A 221 MET PRO ARG GLU TYR GLU PHE ALA GLU LYS ILE LEU PHE SEQRES 2 A 221 THR GLU GLU GLU ILE ARG THR ARG ILE LYS GLU VAL ALA SEQRES 3 A 221 LYS ARG ILE ALA ASP ASP TYR LYS GLY LYS GLY LEU ARG SEQRES 4 A 221 PRO TYR VAL ASN PRO LEU VAL LEU ILE SER VAL LEU LYS SEQRES 5 A 221 GLY SER PHE MET PHE THR ALA ASP LEU CYS ARG ALA LEU SEQRES 6 A 221 CYS ASP PHE ASN VAL PRO VAL ARG MET GLU PHE ILE CYS SEQRES 7 A 221 VAL SER SER TYR GLY GLU GLY LEU THR SER SER GLY GLN SEQRES 8 A 221 VAL ARG MET LEU LEU ASP THR ARG HIS SER ILE GLU GLY SEQRES 9 A 221 HIS HIS VAL LEU ILE VAL GLU ASP ILE VAL GLN THR ALA SEQRES 10 A 221 LEU THR LEU ASN TYR LEU TYR HIS MET TYR PHE THR ARG SEQRES 11 A 221 ARG PRO ALA SER LEU LYS THR VAL VAL LEU LEU ASP LYS SEQRES 12 A 221 ARG GLU GLY ARG ARG VAL PRO PHE SER ALA ASP TYR VAL SEQRES 13 A 221 VAL ALA ASN ILE PRO ASN ALA PHE VAL ILE GLY TYR GLY SEQRES 14 A 221 LEU ASP TYR ASP ASP THR TYR ARG GLU LEU ARG ASP ILE SEQRES 15 A 221 VAL VAL LEU ARG PRO GLU VAL TYR ALA GLU ARG GLU ALA SEQRES 16 A 221 ALA ARG GLY LYS LYS GLN ARG ALA ILE GLY SER ALA ASP SEQRES 17 A 221 THR ASP ARG ASP ALA LYS ARG GLU PHE HIS SER LYS TYR SEQRES 1 B 221 MET PRO ARG GLU TYR GLU PHE ALA GLU LYS ILE LEU PHE SEQRES 2 B 221 THR GLU GLU GLU ILE ARG THR ARG ILE LYS GLU VAL ALA SEQRES 3 B 221 LYS ARG ILE ALA ASP ASP TYR LYS GLY LYS GLY LEU ARG SEQRES 4 B 221 PRO TYR VAL ASN PRO LEU VAL LEU ILE SER VAL LEU LYS SEQRES 5 B 221 GLY SER PHE MET PHE THR ALA ASP LEU CYS ARG ALA LEU SEQRES 6 B 221 CYS ASP PHE ASN VAL PRO VAL ARG MET GLU PHE ILE CYS SEQRES 7 B 221 VAL SER SER TYR GLY GLU GLY LEU THR SER SER GLY GLN SEQRES 8 B 221 VAL ARG MET LEU LEU ASP THR ARG HIS SER ILE GLU GLY SEQRES 9 B 221 HIS HIS VAL LEU ILE VAL GLU ASP ILE VAL GLN THR ALA SEQRES 10 B 221 LEU THR LEU ASN TYR LEU TYR HIS MET TYR PHE THR ARG SEQRES 11 B 221 ARG PRO ALA SER LEU LYS THR VAL VAL LEU LEU ASP LYS SEQRES 12 B 221 ARG GLU GLY ARG ARG VAL PRO PHE SER ALA ASP TYR VAL SEQRES 13 B 221 VAL ALA ASN ILE PRO ASN ALA PHE VAL ILE GLY TYR GLY SEQRES 14 B 221 LEU ASP TYR ASP ASP THR TYR ARG GLU LEU ARG ASP ILE SEQRES 15 B 221 VAL VAL LEU ARG PRO GLU VAL TYR ALA GLU ARG GLU ALA SEQRES 16 B 221 ALA ARG GLY LYS LYS GLN ARG ALA ILE GLY SER ALA ASP SEQRES 17 B 221 THR ASP ARG ASP ALA LYS ARG GLU PHE HIS SER LYS TYR HET MG A 900 1 HET MG A 902 1 HET 7HP A 800 10 HET PRP A 801 22 HET MG B 912 1 HET MG B 910 1 HET 7HP B 810 10 HET PRP B 811 22 HETNAM MG MAGNESIUM ION HETNAM 7HP 7-HYDROXY-PYRAZOLO[4,3-D]PYRIMIDINE HETNAM PRP 1-O-PYROPHOSPHONO-5-O-PHOSPHONO-ALPHA-D-RIBOFURANOSE HETSYN PRP ALPHA-PHOSPHORIBOSYLPYROPHOSPHORIC ACID; 1-O- HETSYN 2 PRP PYROPHOSPHONO-5-O-PHOSPHONO-ALPHA-D-RIBOSE; 1-O- HETSYN 3 PRP PYROPHOSPHONO-5-O-PHOSPHONO-D-RIBOSE; 1-O- HETSYN 4 PRP PYROPHOSPHONO-5-O-PHOSPHONO-RIBOSE FORMUL 3 MG 4(MG 2+) FORMUL 5 7HP 2(C5 H4 N4 O) FORMUL 6 PRP 2(C5 H13 O14 P3) FORMUL 11 HOH *194(H2 O) HELIX 1 1 THR A 14 LYS A 34 1 21 HELIX 2 2 SER A 54 PHE A 68 1 15 HELIX 3 3 ALA A 117 THR A 129 1 13 HELIX 4 4 ARG A 144 ARG A 147 5 4 HELIX 5 5 THR B 14 LYS B 34 1 21 HELIX 6 6 GLY B 35 GLY B 37 5 3 HELIX 7 7 SER B 54 PHE B 68 1 15 HELIX 8 8 ALA B 117 THR B 129 1 13 HELIX 9 9 ARG B 144 ARG B 147 5 4 HELIX 10 10 ARG B 186 GLY B 198 1 13 SHEET 1 A 3 ALA A 8 PHE A 13 0 SHEET 2 A 3 ILE A 182 LEU A 185 -1 O VAL A 184 N LYS A 10 SHEET 3 A 3 VAL A 165 ILE A 166 -1 N ILE A 166 O VAL A 183 SHEET 1 B 6 ARG A 93 LEU A 96 0 SHEET 2 B 6 VAL A 72 SER A 80 -1 N CYS A 78 O LEU A 95 SHEET 3 B 6 LEU A 45 VAL A 50 1 N LEU A 47 O ARG A 73 SHEET 4 B 6 HIS A 106 VAL A 114 1 O VAL A 110 N ILE A 48 SHEET 5 B 6 SER A 134 ASP A 142 1 O VAL A 138 N ILE A 109 SHEET 6 B 6 TYR A 155 ASN A 159 1 O ALA A 158 N ASP A 142 SHEET 1 C 3 ALA B 8 PHE B 13 0 SHEET 2 C 3 ILE B 182 LEU B 185 -1 O VAL B 184 N LYS B 10 SHEET 3 C 3 VAL B 165 ILE B 166 -1 N ILE B 166 O VAL B 183 SHEET 1 D 6 ARG B 93 LEU B 96 0 SHEET 2 D 6 VAL B 72 SER B 80 -1 N SER B 80 O ARG B 93 SHEET 3 D 6 LEU B 45 LEU B 51 1 N SER B 49 O GLU B 75 SHEET 4 D 6 HIS B 106 VAL B 114 1 O HIS B 106 N VAL B 46 SHEET 5 D 6 SER B 134 ASP B 142 1 O VAL B 138 N GLU B 111 SHEET 6 D 6 TYR B 155 ASN B 159 1 O TYR B 155 N VAL B 139 LINK OD1 ASP A 171 MG MG A 902 1555 1555 2.01 LINK O1 PRP A 801 MG MG A 900 1555 1555 2.81 LINK O2 PRP A 801 MG MG A 900 1555 1555 2.40 LINK O3 PRP A 801 MG MG A 900 1555 1555 2.60 LINK O3B PRP A 801 MG MG A 900 1555 1555 2.10 LINK O1B PRP A 801 MG MG A 902 1555 1555 2.33 LINK O2A PRP A 801 MG MG A 902 1555 1555 2.17 LINK MG MG A 900 O HOH A1301 1555 1555 2.09 LINK MG MG A 900 O HOH A1302 1555 1555 2.09 LINK MG MG A 902 O HOH A1303 1555 1555 2.00 LINK MG MG A 902 O HOH A1304 1555 1555 2.15 LINK MG MG A 902 O HOH A1305 1555 1555 2.10 LINK OD1 ASP B 171 MG MG B 912 1555 1555 2.20 LINK OD2 ASP B 171 MG MG B 912 1555 1555 3.11 LINK O3B PRP B 811 MG MG B 910 1555 1555 2.31 LINK O3 PRP B 811 MG MG B 910 1555 1555 2.22 LINK O2 PRP B 811 MG MG B 910 1555 1555 2.29 LINK O1 PRP B 811 MG MG B 910 1555 1555 2.74 LINK O2A PRP B 811 MG MG B 912 1555 1555 2.01 LINK O1B PRP B 811 MG MG B 912 1555 1555 2.38 LINK MG MG B 910 O HOH B1309 1555 1555 1.96 LINK MG MG B 910 O HOH B1310 1555 1555 1.96 LINK MG MG B 912 O HOH B1306 1555 1555 2.12 LINK MG MG B 912 O HOH B1307 1555 1555 2.09 LINK MG MG B 912 O HOH B1308 1555 1555 2.08 CISPEP 1 LEU A 51 LYS A 52 0 1.40 CISPEP 2 LEU B 51 LYS B 52 0 1.31 CRYST1 39.380 101.270 51.670 90.00 94.25 90.00 P 1 21 1 4 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 0.025394 0.000000 0.001887 0.00000 SCALE2 0.000000 0.009875 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019407 0.00000