HEADER TRANSFERASE 04-JAN-00 1DQN TITLE CRYSTAL STRUCTURE OF GIARDIA GUANINE PHOSPHORIBOSYLTRANSFERASE TITLE 2 COMPLEXED WITH A TRANSITION STATE ANALOGUE COMPND MOL_ID: 1; COMPND 2 MOLECULE: GUANINE PHOSPHORIBOSYLTRANSFERASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 2.4.2.8; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: GIARDIA INTESTINALIS; SOURCE 3 ORGANISM_TAXID: 5741; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PROTEIN-INHIBITOR COMPLEX, MG IONS, PYROPHOSPHATE, TRANSITION STATE KEYWDS 2 ANALOGUE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR W.SHI,N.R.MUNAGALA,C.C.WANG,C.M.LI,P.C.TYLER,R.H.FURNEAUX, AUTHOR 2 C.GRUBMEYER,V.L.SCHRAMM,S.C.ALMO REVDAT 4 07-FEB-24 1DQN 1 REMARK LINK REVDAT 3 24-FEB-09 1DQN 1 VERSN REVDAT 2 01-APR-03 1DQN 1 JRNL REVDAT 1 26-JUL-00 1DQN 0 JRNL AUTH W.SHI,N.R.MUNAGALA,C.C.WANG,C.M.LI,P.C.TYLER,R.H.FURNEAUX, JRNL AUTH 2 C.GRUBMEYER,V.L.SCHRAMM,S.C.ALMO JRNL TITL CRYSTAL STRUCTURES OF GIARDIA LAMBLIA GUANINE JRNL TITL 2 PHOSPHORIBOSYLTRANSFERASE AT 1.75 A(,). JRNL REF BIOCHEMISTRY V. 39 6781 2000 JRNL REFN ISSN 0006-2960 JRNL PMID 10841757 JRNL DOI 10.1021/BI000128T REMARK 2 REMARK 2 RESOLUTION. 1.75 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.9 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) : 1.75 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 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) (%) : 98.4 REMARK 3 NUMBER OF REFLECTIONS : 50375 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) : 0.204 REMARK 3 FREE R VALUE : 0.234 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 5080 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 : 3706 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 72 REMARK 3 SOLVENT ATOMS : 476 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.70 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) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.350 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 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: USED WEIGHTED FULL MATRIX LEAST SQUARES REMARK 3 PROCEDURE REMARK 4 REMARK 4 1DQN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-JAN-00. REMARK 100 THE DEPOSITION ID IS D_1000010300. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-AUG-99 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X9B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 50789 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.750 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 200 DATA REDUNDANCY : 3.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03600 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 40.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.75 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.78 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.1 REMARK 200 DATA REDUNDANCY IN SHELL : 3.20 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.08200 REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.97 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.36 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% POLYETHYLENE GLYCOL 4000, 5% REMARK 280 ISOPROPANOL, 100 MM HEPES, PH 7.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 296K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 28.31600 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 61.54000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 35.77650 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 61.54000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 28.31600 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 35.77650 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 BIOLOGICAL ASSEMBLY IS A DIMER IN THE ASYMMETRIC UNIT 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: 5680 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20720 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -43.0 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 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 MET A 1 CG SD CE REMARK 470 MET B 1 CG SD CE 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 ASP A 129 -84.21 -100.37 REMARK 500 VAL B 94 160.77 -36.16 REMARK 500 ASP B 129 -94.39 -102.33 REMARK 500 ASN B 225 105.60 -57.10 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 450 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 125 OD2 REMARK 620 2 GLU A 126 OE2 88.0 REMARK 620 3 IMU A 300 O3' 102.6 89.5 REMARK 620 4 IMU A 300 O2' 175.1 94.5 73.2 REMARK 620 5 HOH A 776 O 79.3 103.4 167.1 104.2 REMARK 620 6 HOH A 800 O 88.3 167.5 79.6 88.3 87.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 451 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 187 OD1 REMARK 620 2 POP A 400 O4 171.7 REMARK 620 3 POP A 400 O3 91.4 83.8 REMARK 620 4 HOH A 558 O 78.8 94.0 84.2 REMARK 620 5 HOH A 849 O 101.0 82.1 161.1 84.2 REMARK 620 6 HOH A 853 O 83.9 104.0 107.6 159.3 88.1 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 MG A 450 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 451 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMU A 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE POP A 400 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMU B 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE POP B 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IPA B 500 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1DQP RELATED DB: PDB REMARK 900 1DQP CONTAINS THE SAME PROTEIN WITH IMMUCILLING DBREF 1DQN A 1 230 UNP Q24973 Q24973_GIALA 1 230 DBREF 1DQN B 1 230 UNP Q24973 Q24973_GIALA 1 230 SEQRES 1 A 230 MET ILE CYS SER VAL THR GLY LYS PRO VAL LYS ASP VAL SEQRES 2 A 230 LEU SER THR PHE PHE LYS ASP ARG ASN ASP VAL LEU GLU SEQRES 3 A 230 SER GLU VAL LYS LYS PHE HIS LEU LEU ALA THR PHE GLU SEQRES 4 A 230 GLU CYS LYS ALA LEU ALA ALA ASP THR ALA ARG ARG MET SEQRES 5 A 230 ASN GLU TYR TYR LYS ASP VAL ALA GLU PRO VAL THR LEU SEQRES 6 A 230 VAL ALA LEU LEU THR GLY ALA TYR LEU TYR ALA SER LEU SEQRES 7 A 230 LEU THR VAL HIS LEU THR PHE PRO TYR THR LEU HIS PHE SEQRES 8 A 230 VAL LYS VAL SER SER TYR LYS GLY THR ARG GLN GLU SER SEQRES 9 A 230 VAL VAL PHE ASP GLU GLU ASP LEU LYS GLN LEU LYS GLU SEQRES 10 A 230 LYS ARG GLU VAL VAL LEU ILE ASP GLU TYR VAL ASP SER SEQRES 11 A 230 GLY HIS THR ILE PHE SER ILE GLN GLU GLN ILE LYS HIS SEQRES 12 A 230 ALA LYS ILE CYS SER CYS PHE VAL LYS ASP VAL ASP ALA SEQRES 13 A 230 ILE LYS LYS HIS SER ALA LEU ALA ASP THR LYS MET PHE SEQRES 14 A 230 TYR GLY TYR THR PRO MET PRO LYS GLY SER TRP LEU ILE SEQRES 15 A 230 GLY PHE GLY LEU ASP ASP ASN GLY LEU ARG ARG GLY TRP SEQRES 16 A 230 ALA HIS LEU PHE ASP ILE ASN LEU SER GLU SER GLU VAL SEQRES 17 A 230 THR GLU PHE ARG ARG ARG LEU THR GLU HIS ILE LYS GLY SEQRES 18 A 230 LEU ASN ILE ASN GLY VAL ASN ARG TYR SEQRES 1 B 230 MET ILE CYS SER VAL THR GLY LYS PRO VAL LYS ASP VAL SEQRES 2 B 230 LEU SER THR PHE PHE LYS ASP ARG ASN ASP VAL LEU GLU SEQRES 3 B 230 SER GLU VAL LYS LYS PHE HIS LEU LEU ALA THR PHE GLU SEQRES 4 B 230 GLU CYS LYS ALA LEU ALA ALA ASP THR ALA ARG ARG MET SEQRES 5 B 230 ASN GLU TYR TYR LYS ASP VAL ALA GLU PRO VAL THR LEU SEQRES 6 B 230 VAL ALA LEU LEU THR GLY ALA TYR LEU TYR ALA SER LEU SEQRES 7 B 230 LEU THR VAL HIS LEU THR PHE PRO TYR THR LEU HIS PHE SEQRES 8 B 230 VAL LYS VAL SER SER TYR LYS GLY THR ARG GLN GLU SER SEQRES 9 B 230 VAL VAL PHE ASP GLU GLU ASP LEU LYS GLN LEU LYS GLU SEQRES 10 B 230 LYS ARG GLU VAL VAL LEU ILE ASP GLU TYR VAL ASP SER SEQRES 11 B 230 GLY HIS THR ILE PHE SER ILE GLN GLU GLN ILE LYS HIS SEQRES 12 B 230 ALA LYS ILE CYS SER CYS PHE VAL LYS ASP VAL ASP ALA SEQRES 13 B 230 ILE LYS LYS HIS SER ALA LEU ALA ASP THR LYS MET PHE SEQRES 14 B 230 TYR GLY TYR THR PRO MET PRO LYS GLY SER TRP LEU ILE SEQRES 15 B 230 GLY PHE GLY LEU ASP ASP ASN GLY LEU ARG ARG GLY TRP SEQRES 16 B 230 ALA HIS LEU PHE ASP ILE ASN LEU SER GLU SER GLU VAL SEQRES 17 B 230 THR GLU PHE ARG ARG ARG LEU THR GLU HIS ILE LYS GLY SEQRES 18 B 230 LEU ASN ILE ASN GLY VAL ASN ARG TYR HET MG A 450 1 HET MG A 451 1 HET IMU A 300 24 HET POP A 400 9 HET IMU B 301 24 HET POP B 401 9 HET IPA B 500 4 HETNAM MG MAGNESIUM ION HETNAM IMU PHOSPHORIC ACID MONO-[5-(2-AMINO-4-OXO-4,5-DIHYDRO-3H- HETNAM 2 IMU PYRROLO[3,2-D]PYRIMIDIN-7-YL)-3,4-DIHYDROXY- HETNAM 3 IMU PYRROLIDIN-2-YLMETHYL] ESTER HETNAM POP PYROPHOSPHATE 2- HETNAM IPA ISOPROPYL ALCOHOL HETSYN IMU MODIFIED QUANOSINE-5-PHOSPHATE HETSYN IPA 2-PROPANOL FORMUL 3 MG 2(MG 2+) FORMUL 5 IMU 2(C11 H16 N5 O7 P) FORMUL 6 POP 2(H2 O7 P2 2-) FORMUL 9 IPA C3 H8 O FORMUL 10 HOH *476(H2 O) HELIX 1 1 PRO A 9 LYS A 19 1 11 HELIX 2 2 LEU A 25 PHE A 32 5 8 HELIX 3 3 THR A 37 LYS A 57 1 21 HELIX 4 4 ALA A 72 VAL A 81 1 10 HELIX 5 5 ASP A 108 LYS A 118 1 11 HELIX 6 6 GLY A 131 ILE A 141 1 11 HELIX 7 7 ASP A 153 LYS A 159 1 7 HELIX 8 8 SER A 204 GLY A 221 1 18 HELIX 9 9 PRO B 9 LYS B 19 1 11 HELIX 10 10 LEU B 25 PHE B 32 5 8 HELIX 11 11 THR B 37 TYR B 56 1 20 HELIX 12 12 ALA B 72 VAL B 81 1 10 HELIX 13 13 ASP B 108 LYS B 116 1 9 HELIX 14 14 GLY B 131 ILE B 141 1 11 HELIX 15 15 ASP B 153 LYS B 159 1 7 HELIX 16 16 SER B 204 GLY B 221 1 18 SHEET 1 A 3 HIS A 33 ALA A 36 0 SHEET 2 A 3 LEU A 198 ASP A 200 -1 O LEU A 198 N LEU A 35 SHEET 3 A 3 LEU A 181 ILE A 182 -1 O ILE A 182 N PHE A 199 SHEET 1 B 5 TYR A 87 VAL A 92 0 SHEET 2 B 5 VAL A 63 LEU A 68 1 O VAL A 63 N THR A 88 SHEET 3 B 5 VAL A 121 VAL A 128 1 O VAL A 122 N VAL A 66 SHEET 4 B 5 LYS A 145 VAL A 151 1 O LYS A 145 N LEU A 123 SHEET 5 B 5 MET A 168 TYR A 172 1 N PHE A 169 O ILE A 146 SHEET 1 C 2 SER A 95 LYS A 98 0 SHEET 2 C 2 GLU A 103 VAL A 106 -1 O SER A 104 N TYR A 97 SHEET 1 D 3 HIS B 33 ALA B 36 0 SHEET 2 D 3 LEU B 198 ASP B 200 -1 N LEU B 198 O ALA B 36 SHEET 3 D 3 LEU B 181 ILE B 182 -1 O ILE B 182 N PHE B 199 SHEET 1 E 5 TYR B 87 VAL B 92 0 SHEET 2 E 5 VAL B 63 LEU B 68 1 O VAL B 63 N THR B 88 SHEET 3 E 5 VAL B 121 VAL B 128 1 O VAL B 122 N VAL B 66 SHEET 4 E 5 LYS B 145 VAL B 151 1 N LYS B 145 O VAL B 121 SHEET 5 E 5 MET B 168 TYR B 172 1 N PHE B 169 O ILE B 146 SHEET 1 F 2 SER B 95 LYS B 98 0 SHEET 2 F 2 GLU B 103 VAL B 106 -1 O SER B 104 N TYR B 97 LINK OD2 ASP A 125 MG MG A 450 1555 1555 2.05 LINK OE2 GLU A 126 MG MG A 450 1555 1555 2.05 LINK OD1 ASP A 187 MG MG A 451 1555 1555 2.18 LINK O3' IMU A 300 MG MG A 450 1555 1555 2.04 LINK O2' IMU A 300 MG MG A 450 1555 1555 2.54 LINK O4 POP A 400 MG MG A 451 1555 1555 2.03 LINK O3 POP A 400 MG MG A 451 1555 1555 2.39 LINK MG MG A 450 O HOH A 776 1555 1555 2.56 LINK MG MG A 450 O HOH A 800 1555 1555 2.42 LINK MG MG A 451 O HOH A 558 1555 1555 2.13 LINK MG MG A 451 O HOH A 849 1555 1555 2.26 LINK MG MG A 451 O HOH A 853 1555 1555 1.94 CISPEP 1 LEU A 69 THR A 70 0 3.70 CISPEP 2 THR A 173 PRO A 174 0 -0.05 CISPEP 3 LEU B 69 THR B 70 0 -0.15 CISPEP 4 THR B 173 PRO B 174 0 -0.11 SITE 1 AC1 5 ASP A 125 GLU A 126 IMU A 300 HOH A 776 SITE 2 AC1 5 HOH A 800 SITE 1 AC2 5 ASP A 187 POP A 400 HOH A 558 HOH A 849 SITE 2 AC2 5 HOH A 853 SITE 1 AC3 20 ASP A 125 GLU A 126 TYR A 127 ASP A 129 SITE 2 AC3 20 SER A 130 GLY A 131 HIS A 132 THR A 133 SITE 3 AC3 20 TRP A 180 LEU A 181 ASP A 187 POP A 400 SITE 4 AC3 20 MG A 450 HOH A 551 HOH A 558 HOH A 642 SITE 5 AC3 20 HOH A 754 HOH A 800 HOH A 817 HOH A 850 SITE 1 AC4 12 LEU A 69 THR A 70 GLY A 71 ASP A 187 SITE 2 AC4 12 ARG A 193 IMU A 300 MG A 451 HOH A 558 SITE 3 AC4 12 HOH A 760 HOH A 776 HOH A 849 HOH A 850 SITE 1 AC5 14 ASP B 125 GLU B 126 TYR B 127 ASP B 129 SITE 2 AC5 14 SER B 130 GLY B 131 HIS B 132 THR B 133 SITE 3 AC5 14 TRP B 180 LEU B 181 LEU B 186 ASP B 187 SITE 4 AC5 14 POP B 401 HOH B 523 SITE 1 AC6 10 LEU B 69 THR B 70 GLY B 71 ASP B 187 SITE 2 AC6 10 ARG B 193 IMU B 301 HOH B 537 HOH B 571 SITE 3 AC6 10 HOH B 851 HOH B 949 SITE 1 AC7 6 PHE B 18 ASP B 20 ARG B 21 VAL B 24 SITE 2 AC7 6 VAL B 29 THR B 100 CRYST1 56.632 71.553 123.080 90.00 90.00 90.00 P 21 21 21 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 0.017658 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013976 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008125 0.00000