HEADER TRANSFERASE 17-JUN-05 2A0W TITLE STRUCTURE OF HUMAN PURINE NUCLEOSIDE PHOSPHORYLASE H257G MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: PURINE NUCLEOSIDE PHOSPHORYLASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: INOSINE PHOSPHORYLASE, PNP; COMPND 5 EC: 2.4.2.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: NP, PNP; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PURINE NUCLEOSIDE PHOSPHORYLASE, TRANSITION STATE INHIBITOR, MUTANT, KEYWDS 2 TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR A.S.MURKIN,W.SHI,V.L.SCHRAMM REVDAT 6 20-OCT-21 2A0W 1 REMARK SEQADV REVDAT 5 12-DEC-18 2A0W 1 COMPND HETNAM HETSYN FORMUL REVDAT 4 13-JUL-11 2A0W 1 VERSN REVDAT 3 02-MAR-10 2A0W 1 JRNL REVDAT 2 24-FEB-09 2A0W 1 VERSN REVDAT 1 06-JUN-06 2A0W 0 JRNL AUTH A.S.MURKIN,M.R.BIRCK,A.RINALDO-MATTHIS,W.SHI,E.A.TAYLOR, JRNL AUTH 2 S.C.ALMO,V.L.SCHRAMM JRNL TITL NEIGHBORING GROUP PARTICIPATION IN THE TRANSITION STATE OF JRNL TITL 2 HUMAN PURINE NUCLEOSIDE PHOSPHORYLASE. JRNL REF BIOCHEMISTRY V. 46 5038 2007 JRNL REFN ISSN 0006-2960 JRNL PMID 17407325 JRNL DOI 10.1021/BI700147B REMARK 2 REMARK 2 RESOLUTION. 2.28 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) : 2.28 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 29101 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) : 0.233 REMARK 3 FREE R VALUE : 0.254 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2899 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) : 2.28 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.42 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 90.70 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2550 REMARK 3 BIN FREE R VALUE : 0.2820 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 451 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.013 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2200 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 29 REMARK 3 SOLVENT ATOMS : 78 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 35.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 46.00 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.59000 REMARK 3 B22 (A**2) : 2.84000 REMARK 3 B33 (A**2) : -2.26000 REMARK 3 B12 (A**2) : 2.30000 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) : 0.29 REMARK 3 ESD FROM SIGMAA (A) : 0.21 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) : 0.32 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.24 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.800 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 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 2A0W COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-JUN-05. REMARK 100 THE DEPOSITION ID IS D_1000033352. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-NOV-04 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 5.60 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X29A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.1 REMARK 200 MONOCHROMATOR : SAGITALLY FOCUSED SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 29413 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.280 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 9.100 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04600 REMARK 200 FOR THE DATA SET : 50.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.28 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.36 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.19600 REMARK 200 FOR SHELL : 8.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1RSZ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 76.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NA CITRATE, AMMONIUM SULFATE, PH 5.6, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K, PH 5.60 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2 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 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z REMARK 290 6555 -X,-X+Y,-Z REMARK 290 7555 X+2/3,Y+1/3,Z+1/3 REMARK 290 8555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 9555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 10555 Y+2/3,X+1/3,-Z+1/3 REMARK 290 11555 X-Y+2/3,-Y+1/3,-Z+1/3 REMARK 290 12555 -X+2/3,-X+Y+1/3,-Z+1/3 REMARK 290 13555 X+1/3,Y+2/3,Z+2/3 REMARK 290 14555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 15555 -X+Y+1/3,-X+2/3,Z+2/3 REMARK 290 16555 Y+1/3,X+2/3,-Z+2/3 REMARK 290 17555 X-Y+1/3,-Y+2/3,-Z+2/3 REMARK 290 18555 -X+1/3,-X+Y+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 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 70.94050 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 40.95752 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 55.46633 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 70.94050 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 40.95752 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 55.46633 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 70.94050 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 40.95752 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 55.46633 REMARK 290 SMTRY1 10 -0.500000 0.866025 0.000000 70.94050 REMARK 290 SMTRY2 10 0.866025 0.500000 0.000000 40.95752 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 55.46633 REMARK 290 SMTRY1 11 1.000000 0.000000 0.000000 70.94050 REMARK 290 SMTRY2 11 0.000000 -1.000000 0.000000 40.95752 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 55.46633 REMARK 290 SMTRY1 12 -0.500000 -0.866025 0.000000 70.94050 REMARK 290 SMTRY2 12 -0.866025 0.500000 0.000000 40.95752 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 55.46633 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 81.91503 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 110.93267 REMARK 290 SMTRY1 14 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 14 0.866025 -0.500000 0.000000 81.91503 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 110.93267 REMARK 290 SMTRY1 15 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 15 -0.866025 -0.500000 0.000000 81.91503 REMARK 290 SMTRY3 15 0.000000 0.000000 1.000000 110.93267 REMARK 290 SMTRY1 16 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 16 0.866025 0.500000 0.000000 81.91503 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 110.93267 REMARK 290 SMTRY1 17 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 17 0.000000 -1.000000 0.000000 81.91503 REMARK 290 SMTRY3 17 0.000000 0.000000 -1.000000 110.93267 REMARK 290 SMTRY1 18 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 18 -0.866025 0.500000 0.000000 81.91503 REMARK 290 SMTRY3 18 0.000000 0.000000 -1.000000 110.93267 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 BIOLOGICAL ASSEMBLY IS A TRIMER GENERATED FROM THE REMARK 300 MONOMER IN THE ASYMMETRIC UNIT BY THE CRYSTALLOGRAPHIC 3-FOLD 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 10870 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 30170 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -130.0 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 -0.500000 -0.866025 0.000000 0.00000 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 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 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 GLU A 2 REMARK 465 PRO A 285 REMARK 465 ASP A 286 REMARK 465 LYS A 287 REMARK 465 ALA A 288 REMARK 465 SER A 289 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 ASN A 55 -8.26 72.46 REMARK 500 SER A 59 101.89 -52.71 REMARK 500 THR A 60 -88.00 -43.51 REMARK 500 VAL A 61 40.64 -148.12 REMARK 500 PHE A 159 69.67 -119.89 REMARK 500 ASP A 167 118.27 -37.67 REMARK 500 GLN A 184 -88.11 -58.82 REMARK 500 SER A 220 -156.96 -155.26 REMARK 500 THR A 221 -59.46 70.42 REMARK 500 GLN A 266 -74.27 -79.63 REMARK 500 PRO A 283 -169.96 -60.43 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DIH A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2A0X RELATED DB: PDB REMARK 900 STRUCTURE OF HUMAN PURINE NUCLEOSIDE PHOSPHORYLASE H257F MUTANT REMARK 900 RELATED ID: 2A0Y RELATED DB: PDB REMARK 900 STRUCTURE OF THE SAME PROTEIN H257D MUTANT DBREF 2A0W A 1 289 UNP P00491 PNPH_HUMAN 1 289 SEQADV 2A0W GLY A 257 UNP P00491 HIS 257 ENGINEERED MUTATION SEQRES 1 A 289 MET GLU ASN GLY TYR THR TYR GLU ASP TYR LYS ASN THR SEQRES 2 A 289 ALA GLU TRP LEU LEU SER HIS THR LYS HIS ARG PRO GLN SEQRES 3 A 289 VAL ALA ILE ILE CYS GLY SER GLY LEU GLY GLY LEU THR SEQRES 4 A 289 ASP LYS LEU THR GLN ALA GLN ILE PHE ASP TYR SER GLU SEQRES 5 A 289 ILE PRO ASN PHE PRO ARG SER THR VAL PRO GLY HIS ALA SEQRES 6 A 289 GLY ARG LEU VAL PHE GLY PHE LEU ASN GLY ARG ALA CYS SEQRES 7 A 289 VAL MET MET GLN GLY ARG PHE HIS MET TYR GLU GLY TYR SEQRES 8 A 289 PRO LEU TRP LYS VAL THR PHE PRO VAL ARG VAL PHE HIS SEQRES 9 A 289 LEU LEU GLY VAL ASP THR LEU VAL VAL THR ASN ALA ALA SEQRES 10 A 289 GLY GLY LEU ASN PRO LYS PHE GLU VAL GLY ASP ILE MET SEQRES 11 A 289 LEU ILE ARG ASP HIS ILE ASN LEU PRO GLY PHE SER GLY SEQRES 12 A 289 GLN ASN PRO LEU ARG GLY PRO ASN ASP GLU ARG PHE GLY SEQRES 13 A 289 ASP ARG PHE PRO ALA MET SER ASP ALA TYR ASP ARG THR SEQRES 14 A 289 MET ARG GLN ARG ALA LEU SER THR TRP LYS GLN MET GLY SEQRES 15 A 289 GLU GLN ARG GLU LEU GLN GLU GLY THR TYR VAL MET VAL SEQRES 16 A 289 ALA GLY PRO SER PHE GLU THR VAL ALA GLU CYS ARG VAL SEQRES 17 A 289 LEU GLN LYS LEU GLY ALA ASP ALA VAL GLY MET SER THR SEQRES 18 A 289 VAL PRO GLU VAL ILE VAL ALA ARG HIS CYS GLY LEU ARG SEQRES 19 A 289 VAL PHE GLY PHE SER LEU ILE THR ASN LYS VAL ILE MET SEQRES 20 A 289 ASP TYR GLU SER LEU GLU LYS ALA ASN GLY GLU GLU VAL SEQRES 21 A 289 LEU ALA ALA GLY LYS GLN ALA ALA GLN LYS LEU GLU GLN SEQRES 22 A 289 PHE VAL SER ILE LEU MET ALA SER ILE PRO LEU PRO ASP SEQRES 23 A 289 LYS ALA SER HET SO4 A 401 5 HET SO4 A 402 5 HET DIH A 300 19 HETNAM SO4 SULFATE ION HETNAM DIH 7-[[(3R,4R)-3-(HYDROXYMETHYL)-4-OXIDANYL-PYRROLIDIN-1- HETNAM 2 DIH IUM-1-YL]METHYL]-3,5-DIHYDROPYRROLO[3,2-D]PYRIMIDIN-4- HETNAM 3 DIH ONE FORMUL 2 SO4 2(O4 S 2-) FORMUL 4 DIH C12 H17 N4 O3 1+ FORMUL 5 HOH *78(H2 O) HELIX 1 1 THR A 6 SER A 19 1 14 HELIX 2 2 LEU A 35 LEU A 42 5 8 HELIX 3 3 SER A 51 ILE A 53 5 3 HELIX 4 4 HIS A 86 GLY A 90 5 5 HELIX 5 5 PRO A 92 THR A 97 1 6 HELIX 6 6 THR A 97 LEU A 106 1 10 HELIX 7 7 LEU A 138 SER A 142 1 5 HELIX 8 8 ASP A 167 MET A 181 1 15 HELIX 9 9 THR A 202 LEU A 212 1 11 HELIX 10 10 THR A 221 GLY A 232 1 12 HELIX 11 11 ASN A 256 ALA A 267 1 12 HELIX 12 12 ALA A 267 MET A 279 1 13 HELIX 13 13 ALA A 280 ILE A 282 5 3 SHEET 1 A10 THR A 43 ASP A 49 0 SHEET 2 A10 ARG A 67 PHE A 72 -1 O LEU A 68 N PHE A 48 SHEET 3 A10 ALA A 77 GLN A 82 -1 O CYS A 78 N GLY A 71 SHEET 4 A10 VAL A 27 CYS A 31 1 N ILE A 29 O MET A 81 SHEET 5 A10 THR A 110 GLY A 119 1 O THR A 110 N ALA A 28 SHEET 6 A10 ARG A 234 LYS A 244 1 O ASN A 243 N GLY A 119 SHEET 7 A10 ILE A 129 ASN A 137 -1 N MET A 130 O SER A 239 SHEET 8 A10 GLN A 188 MET A 194 1 O GLN A 188 N LEU A 131 SHEET 9 A10 ALA A 216 GLY A 218 1 O ALA A 216 N VAL A 193 SHEET 10 A10 THR A 110 GLY A 119 -1 N GLY A 118 O VAL A 217 CISPEP 1 GLY A 197 PRO A 198 0 0.01 SITE 1 AC1 11 GLY A 32 SER A 33 ARG A 84 HIS A 86 SITE 2 AC1 11 ASN A 115 ALA A 116 SER A 220 DIH A 300 SITE 3 AC1 11 HOH A 502 HOH A 508 HOH A 551 SITE 1 AC2 7 PRO A 92 GLN A 144 ARG A 148 HOH A 504 SITE 2 AC2 7 HOH A 522 HOH A 545 HOH A 557 SITE 1 AC3 16 TYR A 88 ALA A 116 ALA A 117 GLY A 118 SITE 2 AC3 16 PHE A 159 PHE A 200 GLU A 201 VAL A 217 SITE 3 AC3 16 MET A 219 THR A 242 ASN A 243 VAL A 245 SITE 4 AC3 16 GLY A 257 VAL A 260 SO4 A 401 HOH A 543 CRYST1 141.881 141.881 166.399 90.00 90.00 120.00 H 3 2 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 0.007048 0.004069 0.000000 0.00000 SCALE2 0.000000 0.008139 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006010 0.00000