HEADER TRANSFERASE 23-JAN-23 8FWY TITLE CRYSTAL STRUCTURE OF THE TRYPANOSOMA CRUZI HYPOXANTHINE-GUANINE- TITLE 2 XANTHINE PHOSPHORIBOSYLTRANSFERASE (HGXPRT), ISOFORM D, BOUND TO THE TITLE 3 DEAD-END COMPLEX XANTHINE AND PYROPHOSPHATE 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 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TRYPANOSOMA CRUZI (STRAIN CL BRENER); SOURCE 3 ORGANISM_TAXID: 353153; SOURCE 4 GENE: ECC02_007666; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS HYPOXANTHINE-GUANINE-XANTHINE PHOSPHORIBOSYLTRANSFERASE, HGXPRT, KEYWDS 2 TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR R.HUGHES,K.M.MENEELY,K.GLOCKZIN,P.C.TYLER,A.L.LAMB,T.D.MEEK, AUTHOR 2 A.KATZFUSS REVDAT 4 22-NOV-23 8FWY 1 SOURCE REVDAT 3 25-OCT-23 8FWY 1 REMARK REVDAT 2 26-JUL-23 8FWY 1 JRNL REVDAT 1 19-JUL-23 8FWY 0 JRNL AUTH K.GLOCKZIN,K.M.MENEELY,R.HUGHES,S.W.MAATOUK,G.E.PINA, JRNL AUTH 2 K.SUTHAGAR,K.CLINCH,J.N.BUCKLER,A.L.LAMB,P.C.TYLER,T.D.MEEK, JRNL AUTH 3 A.KATZFUSS JRNL TITL KINETIC AND STRUCTURAL CHARACTERIZATION OF TRYPANOSOMA CRUZI JRNL TITL 2 HYPOXANTHINE-GUANINE-XANTHINE PHOSPHORIBOSYLTRANSFERASES AND JRNL TITL 3 REPURPOSING OF TRANSITION-STATE ANALOGUE INHIBITORS. JRNL REF BIOCHEMISTRY V. 62 2182 2023 JRNL REFN ISSN 0006-2960 JRNL PMID 37418678 JRNL DOI 10.1021/ACS.BIOCHEM.3C00116 REMARK 2 REMARK 2 RESOLUTION. 1.54 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.18.2_3874 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.54 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 48.34 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 91.8 REMARK 3 NUMBER OF REFLECTIONS : 60765 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.190 REMARK 3 R VALUE (WORKING SET) : 0.189 REMARK 3 FREE R VALUE : 0.198 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.130 REMARK 3 FREE R VALUE TEST SET COUNT : 3117 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 48.3400 - 4.3200 1.00 3055 170 0.1863 0.1901 REMARK 3 2 4.3200 - 3.4300 1.00 2948 161 0.1605 0.1604 REMARK 3 3 3.4300 - 2.9900 1.00 2901 157 0.1825 0.2044 REMARK 3 4 2.9900 - 2.7200 1.00 2888 142 0.1851 0.2084 REMARK 3 5 2.7200 - 2.5200 1.00 2877 151 0.1973 0.1900 REMARK 3 6 2.5200 - 2.3800 1.00 2868 154 0.1803 0.2003 REMARK 3 7 2.3800 - 2.2600 1.00 2852 151 0.1823 0.1772 REMARK 3 8 2.2600 - 2.1600 1.00 2846 162 0.1731 0.1924 REMARK 3 9 2.1600 - 2.0800 1.00 2824 168 0.1840 0.1977 REMARK 3 10 2.0800 - 2.0000 1.00 2842 163 0.1977 0.2007 REMARK 3 11 2.0000 - 1.9400 1.00 2803 147 0.1985 0.2003 REMARK 3 12 1.9400 - 1.8900 1.00 2861 153 0.2029 0.2006 REMARK 3 13 1.8900 - 1.8400 1.00 2833 142 0.2051 0.2247 REMARK 3 14 1.8400 - 1.7900 1.00 2835 164 0.2097 0.2377 REMARK 3 15 1.7900 - 1.7500 0.99 2798 147 0.2197 0.2724 REMARK 3 16 1.7500 - 1.7100 0.98 2737 141 0.2270 0.2514 REMARK 3 17 1.7100 - 1.6800 0.90 2532 153 0.2469 0.2539 REMARK 3 18 1.6800 - 1.6500 0.80 2251 127 0.2568 0.2926 REMARK 3 19 1.6500 - 1.6200 0.74 2087 103 0.2711 0.2457 REMARK 3 20 1.6200 - 1.5900 0.68 1916 97 0.2764 0.2943 REMARK 3 21 1.5900 - 1.5600 0.60 1691 99 0.2952 0.3190 REMARK 3 22 1.5600 - 1.5400 0.50 1403 65 0.3112 0.3428 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.162 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.930 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 26.59 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.017 3519 REMARK 3 ANGLE : 1.755 4766 REMARK 3 CHIRALITY : 0.564 534 REMARK 3 PLANARITY : 0.007 609 REMARK 3 DIHEDRAL : 22.600 1304 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 8FWY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-JAN-23. REMARK 100 THE DEPOSITION ID IS D_1000271635. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-APR-18 REMARK 200 TEMPERATURE (KELVIN) : 120 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 23-ID-D REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97937 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 60863 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.540 REMARK 200 RESOLUTION RANGE LOW (A) : 48.340 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.8 REMARK 200 DATA REDUNDANCY : 6.400 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.54 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.57 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 <I/SIGMA(I)> FOR SHELL : 3.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: PDB ENTRY 1TC2 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.44 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M LITHIUM SUFATE, 24% PEG3350, 0.1 REMARK 280 M HEPES, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K 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 30.11450 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 45.34250 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.50750 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 45.34250 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 30.11450 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 40.50750 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 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: 5000 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18050 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 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 ILE A 2 REMARK 465 SER A 3 REMARK 465 SER A 4 REMARK 465 GLN A 5 REMARK 465 GLN A 6 REMARK 465 ALA A 7 REMARK 465 MET A 8 REMARK 465 ARG A 116 REMARK 465 GLY A 117 REMARK 465 THR A 118 REMARK 465 SER A 119 REMARK 465 SER A 120 REMARK 465 THR A 121 REMARK 465 MET B 1 REMARK 465 ILE B 2 REMARK 465 SER B 3 REMARK 465 SER B 4 REMARK 465 GLN B 5 REMARK 465 GLN B 6 REMARK 465 ALA B 7 REMARK 465 MET B 8 REMARK 465 TYR B 115 REMARK 465 ARG B 116 REMARK 465 GLY B 117 REMARK 465 THR B 118 REMARK 465 SER B 119 REMARK 465 SER B 120 REMARK 465 THR B 121 REMARK 465 ASN B 122 REMARK 465 LYS B 123 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 B 514 O HOH B 526 2.12 REMARK 500 O HOH A 516 O HOH B 486 2.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 HH21 ARG A 225 HH22 ARG B 225 1455 1.32 REMARK 500 CD ARG A 225 NH2 ARG B 225 1455 1.54 REMARK 500 NE ARG A 225 NH2 ARG B 225 1455 1.93 REMARK 500 NH2 ARG A 225 NH2 ARG B 225 1455 2.04 REMARK 500 O HOH B 517 O HOH B 526 3657 2.09 REMARK 500 CZ ARG A 225 NH2 ARG B 225 1455 2.18 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 ASP A 148 -88.29 -121.48 REMARK 500 MET A 185 112.66 -161.11 REMARK 500 ASP A 208 -0.86 75.64 REMARK 500 PHE A 210 -1.71 83.89 REMARK 500 ASP B 148 -88.12 -120.41 REMARK 500 ASP B 208 -1.07 74.72 REMARK 500 PHE B 210 -1.19 84.22 REMARK 500 REMARK 500 REMARK: NULL DBREF1 8FWY A 1 231 UNP A0A7J6XZA2_TRYCR DBREF2 8FWY A A0A7J6XZA2 109 339 DBREF1 8FWY B 1 231 UNP A0A7J6XZA2_TRYCR DBREF2 8FWY B A0A7J6XZA2 109 339 SEQRES 1 A 231 MET ILE SER SER GLN GLN ALA MET VAL HIS VAL VAL SER SEQRES 2 A 231 ARG ASN ALA GLU GLY VAL ILE VAL VAL ASP GLY LYS ALA SEQRES 3 A 231 TYR PRO MET ALA GLU GLU LEU VAL ALA THR GLU SER VAL SEQRES 4 A 231 ILE GLN ARG SER ILE LYS ALA VAL ALA LYS GLN ILE ALA SEQRES 5 A 231 ASP PHE TYR ARG PRO LEU SER HIS ARG ASP THR HIS GLY SEQRES 6 A 231 GLY GLY GLY VAL ALA PRO ILE SER ASP GLU ASN PRO LEU SEQRES 7 A 231 ILE ILE ILE SER VAL LEU LYS GLY SER TYR ILE PHE THR SEQRES 8 A 231 ALA ASP MET VAL ARG TYR LEU GLY ASP TYR GLY LEU PRO SEQRES 9 A 231 HIS VAL VAL ASP PHE LEU ARG VAL ALA SER TYR ARG GLY SEQRES 10 A 231 THR SER SER THR ASN LYS MET GLN LEU LEU ALA GLU THR SEQRES 11 A 231 GLN PHE LYS ALA LEU ARG GLY LYS HIS VAL LEU ILE LEU SEQRES 12 A 231 GLU ASP ILE VAL ASP SER GLY LYS THR LEU ARG TYR ILE SEQRES 13 A 231 LEU ASP LYS VAL GLN ARG GLU HIS GLN PRO ALA THR LEU SEQRES 14 A 231 LYS VAL CYS VAL LEU ALA ASP LYS PRO GLY GLY ARG ARG SEQRES 15 A 231 VAL THR MET GLN PRO ASP PHE VAL CYS LEU THR VAL PRO SEQRES 16 A 231 ASN LYS TYR VAL ILE GLY TYR GLY PHE GLU VAL ASN ASP SEQRES 17 A 231 ARG PHE ARG CYS PHE ARG HIS ILE PHE THR LEU ARG PRO SEQRES 18 A 231 GLY GLU ALA ARG ARG TYR PRO ALA HIS LEU SEQRES 1 B 231 MET ILE SER SER GLN GLN ALA MET VAL HIS VAL VAL SER SEQRES 2 B 231 ARG ASN ALA GLU GLY VAL ILE VAL VAL ASP GLY LYS ALA SEQRES 3 B 231 TYR PRO MET ALA GLU GLU LEU VAL ALA THR GLU SER VAL SEQRES 4 B 231 ILE GLN ARG SER ILE LYS ALA VAL ALA LYS GLN ILE ALA SEQRES 5 B 231 ASP PHE TYR ARG PRO LEU SER HIS ARG ASP THR HIS GLY SEQRES 6 B 231 GLY GLY GLY VAL ALA PRO ILE SER ASP GLU ASN PRO LEU SEQRES 7 B 231 ILE ILE ILE SER VAL LEU LYS GLY SER TYR ILE PHE THR SEQRES 8 B 231 ALA ASP MET VAL ARG TYR LEU GLY ASP TYR GLY LEU PRO SEQRES 9 B 231 HIS VAL VAL ASP PHE LEU ARG VAL ALA SER TYR ARG GLY SEQRES 10 B 231 THR SER SER THR ASN LYS MET GLN LEU LEU ALA GLU THR SEQRES 11 B 231 GLN PHE LYS ALA LEU ARG GLY LYS HIS VAL LEU ILE LEU SEQRES 12 B 231 GLU ASP ILE VAL ASP SER GLY LYS THR LEU ARG TYR ILE SEQRES 13 B 231 LEU ASP LYS VAL GLN ARG GLU HIS GLN PRO ALA THR LEU SEQRES 14 B 231 LYS VAL CYS VAL LEU ALA ASP LYS PRO GLY GLY ARG ARG SEQRES 15 B 231 VAL THR MET GLN PRO ASP PHE VAL CYS LEU THR VAL PRO SEQRES 16 B 231 ASN LYS TYR VAL ILE GLY TYR GLY PHE GLU VAL ASN ASP SEQRES 17 B 231 ARG PHE ARG CYS PHE ARG HIS ILE PHE THR LEU ARG PRO SEQRES 18 B 231 GLY GLU ALA ARG ARG TYR PRO ALA HIS LEU HET XAN A 301 15 HET PO4 A 302 5 HET XAN B 301 15 HET PO4 B 302 5 HETNAM XAN XANTHINE HETNAM PO4 PHOSPHATE ION FORMUL 3 XAN 2(C5 H4 N4 O2) FORMUL 4 PO4 2(O4 P 3-) FORMUL 7 HOH *255(H2 O) HELIX 1 AA1 THR A 36 ARG A 56 1 21 HELIX 2 AA2 SER A 87 TYR A 101 1 15 HELIX 3 AA3 GLY A 150 GLN A 165 1 16 HELIX 4 AA4 PRO A 178 ARG A 181 5 4 HELIX 5 AA5 PRO A 221 ALA A 224 5 4 HELIX 6 AA6 THR B 36 ARG B 56 1 21 HELIX 7 AA7 SER B 87 TYR B 101 1 15 HELIX 8 AA8 GLY B 150 GLN B 165 1 16 HELIX 9 AA9 PRO B 178 ARG B 181 5 4 HELIX 10 AB1 GLY B 222 ARG B 226 5 5 SHEET 1 AA1 3 VAL A 12 ARG A 14 0 SHEET 2 AA1 3 ILE A 20 VAL A 22 -1 O VAL A 21 N SER A 13 SHEET 3 AA1 3 LYS A 25 TYR A 27 -1 O TYR A 27 N ILE A 20 SHEET 1 AA2 3 ALA A 30 ALA A 35 0 SHEET 2 AA2 3 ILE A 216 LEU A 219 -1 O THR A 218 N GLU A 32 SHEET 3 AA2 3 VAL A 199 ILE A 200 -1 N ILE A 200 O PHE A 217 SHEET 1 AA3 2 SER A 59 ARG A 61 0 SHEET 2 AA3 2 VAL A 69 PRO A 71 -1 O ALA A 70 N HIS A 60 SHEET 1 AA4 6 MET A 124 ALA A 128 0 SHEET 2 AA4 6 HIS A 105 SER A 114 -1 N ALA A 113 O GLN A 125 SHEET 3 AA4 6 LEU A 78 LEU A 84 1 N LEU A 84 O LEU A 110 SHEET 4 AA4 6 HIS A 139 VAL A 147 1 O LEU A 141 N ILE A 79 SHEET 5 AA4 6 THR A 168 ASP A 176 1 O CYS A 172 N ILE A 142 SHEET 6 AA4 6 PHE A 189 THR A 193 1 O PHE A 189 N VAL A 173 SHEET 1 AA5 3 VAL B 12 ARG B 14 0 SHEET 2 AA5 3 ILE B 20 VAL B 22 -1 O VAL B 21 N SER B 13 SHEET 3 AA5 3 LYS B 25 TYR B 27 -1 O LYS B 25 N VAL B 22 SHEET 1 AA6 3 ALA B 30 ALA B 35 0 SHEET 2 AA6 3 ILE B 216 LEU B 219 -1 O THR B 218 N GLU B 31 SHEET 3 AA6 3 VAL B 199 ILE B 200 -1 N ILE B 200 O PHE B 217 SHEET 1 AA7 2 SER B 59 ARG B 61 0 SHEET 2 AA7 2 VAL B 69 PRO B 71 -1 O ALA B 70 N HIS B 60 SHEET 1 AA8 6 GLN B 125 ALA B 128 0 SHEET 2 AA8 6 HIS B 105 ALA B 113 -1 N ARG B 111 O LEU B 127 SHEET 3 AA8 6 LEU B 78 LEU B 84 1 N LEU B 84 O LEU B 110 SHEET 4 AA8 6 HIS B 139 VAL B 147 1 O LEU B 141 N ILE B 79 SHEET 5 AA8 6 THR B 168 ASP B 176 1 O CYS B 172 N ILE B 142 SHEET 6 AA8 6 PHE B 189 THR B 193 1 O LEU B 192 N LEU B 174 CISPEP 1 LEU A 84 LYS A 85 0 -5.02 CISPEP 2 GLY B 67 GLY B 68 0 -2.68 CISPEP 3 LEU B 84 LYS B 85 0 2.89 CRYST1 60.229 81.015 90.685 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 0.016603 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012343 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011027 0.00000