HEADER LYASE 13-NOV-24 9HDU TITLE OROTIDINE 5'-MONOPHOSPHATE DECARBOXYLASE-DOMAIN OF HUMAN UMPS IN TITLE 2 COMPLEX WITH XMP AT 1.0 ANGSTROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: URIDINE 5'-MONOPHOSPHATE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: UMP SYNTHASE, OROTIDINE-5'-MONOPHOSPHATE DECARBOXYLASE; COMPND 5 EC: 2.4.2.10,4.1.1.23; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: UMPS, OK/SW-CL.21; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS URIDINE 5'-MONOPHOSPHATE SYNTHASE PYRIMIDINE METABOLISM HOMO SAPIENS, KEYWDS 2 LYASE EXPDTA X-RAY DIFFRACTION AUTHOR L.L.KIRCK,K.TITTMANN REVDAT 2 26-NOV-25 9HDU 1 JRNL REVDAT 1 22-OCT-25 9HDU 0 JRNL AUTH L.L.KIRCK,E.SANTAGOSTINO,L.BRANDHOFF,N.A.SIMETH,K.TITTMANN JRNL TITL EXPECTED AND UNEXPECTED "GUESTS" AT THE ACTIVE SITE OF HUMAN JRNL TITL 2 OROTIDINE 5'-MONOPHOSPHATE DECARBOXYLASE. JRNL REF BIOCHEMISTRY V. 64 4542 2025 JRNL REFN ISSN 0006-2960 JRNL PMID 41058608 JRNL DOI 10.1021/ACS.BIOCHEM.5C00459 REMARK 2 REMARK 2 RESOLUTION. 1.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.20.1_4487: ???) 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 44.64 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 148585 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.118 REMARK 3 R VALUE (WORKING SET) : 0.117 REMARK 3 FREE R VALUE : 0.132 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 7431 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 44.6400 - 3.1100 0.99 5002 264 0.1358 0.1516 REMARK 3 2 3.1100 - 2.4700 0.99 4840 255 0.1305 0.1348 REMARK 3 3 2.4700 - 2.1500 1.00 4829 254 0.1114 0.1179 REMARK 3 4 2.1500 - 1.9600 1.00 4822 253 0.1019 0.1092 REMARK 3 5 1.9600 - 1.8200 1.00 4782 252 0.0949 0.1141 REMARK 3 6 1.8200 - 1.7100 1.00 4748 250 0.0936 0.1053 REMARK 3 7 1.7100 - 1.6200 0.99 4756 250 0.0856 0.1059 REMARK 3 8 1.6200 - 1.5500 0.99 4732 249 0.0777 0.1147 REMARK 3 9 1.5500 - 1.4900 0.99 4753 251 0.0752 0.0887 REMARK 3 10 1.4900 - 1.4400 1.00 4728 248 0.0791 0.1103 REMARK 3 11 1.4400 - 1.4000 0.99 4701 248 0.0826 0.0935 REMARK 3 12 1.4000 - 1.3600 0.99 4723 248 0.0828 0.1048 REMARK 3 13 1.3600 - 1.3200 0.99 4710 248 0.0859 0.1125 REMARK 3 14 1.3200 - 1.2900 0.99 4715 249 0.0892 0.1073 REMARK 3 15 1.2900 - 1.2600 0.99 4707 247 0.0935 0.1103 REMARK 3 16 1.2600 - 1.2300 0.99 4687 247 0.0985 0.1274 REMARK 3 17 1.2300 - 1.2100 0.99 4662 245 0.1055 0.1072 REMARK 3 18 1.2100 - 1.1900 0.99 4683 247 0.1124 0.1294 REMARK 3 19 1.1900 - 1.1600 0.98 4639 244 0.1231 0.1393 REMARK 3 20 1.1600 - 1.1400 0.98 4661 245 0.1285 0.1573 REMARK 3 21 1.1400 - 1.1300 0.98 4631 244 0.1398 0.1451 REMARK 3 22 1.1300 - 1.1100 0.98 4654 245 0.1478 0.1562 REMARK 3 23 1.1100 - 1.0900 0.98 4649 245 0.1617 0.1752 REMARK 3 24 1.0900 - 1.0800 0.98 4622 243 0.1784 0.1990 REMARK 3 25 1.0800 - 1.0600 0.98 4636 244 0.1913 0.1975 REMARK 3 26 1.0600 - 1.0500 0.98 4633 244 0.2119 0.2448 REMARK 3 27 1.0500 - 1.0400 0.98 4631 244 0.2278 0.2504 REMARK 3 28 1.0400 - 1.0200 0.98 4644 244 0.2507 0.2689 REMARK 3 29 1.0200 - 1.0100 0.98 4599 243 0.2732 0.3142 REMARK 3 30 1.0100 - 1.0000 0.98 4575 241 0.3045 0.2645 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 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) : 0.080 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 12.730 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 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 : 0.010 2409 REMARK 3 ANGLE : 1.241 3306 REMARK 3 CHIRALITY : 0.085 368 REMARK 3 PLANARITY : 0.011 440 REMARK 3 DIHEDRAL : 14.850 930 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 9HDU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 13-NOV-24. REMARK 100 THE DEPOSITION ID IS D_1292142970. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-FEB-22 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : PETRA III, EMBL C/O DESY REMARK 200 BEAMLINE : P14 (MX2) REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.68880 REMARK 200 MONOCHROMATOR : M REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 X CDTE 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 148627 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.000 REMARK 200 RESOLUTION RANGE LOW (A) : 44.640 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 10.20 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 15.6900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.04 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.31 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.48 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM TRIS/HCL PH 7.0, 1.7 - 1.9 M REMARK 280 AMMONIUM SULFATE, 10 MM GLUTATHION PH 8.0, 5% (W/V) GLYCEROL, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293.15K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 30.93500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 30.93500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 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 38.68000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 58.34500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 38.68000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 58.34500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 30.93500 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 38.68000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 58.34500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 30.93500 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 38.68000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 58.34500 REMARK 290 SMTRY3 8 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: 5220 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18730 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -33.0 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 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 61.87000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 754 LIES ON A SPECIAL POSITION. 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 VAL A 480 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 OD1 ASP A 293 HZ3 LYS A 296 1.51 REMARK 500 O HOH A 609 O HOH A 864 2.17 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 GLU A 306 76.32 68.80 REMARK 500 ALA A 316 29.43 -159.91 REMARK 500 PHE A 396 -37.30 -130.07 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 886 DISTANCE = 6.72 ANGSTROMS DBREF 9HDU A 224 480 UNP P11172 UMPS_HUMAN 224 480 SEQADV 9HDU MET A 223 UNP P11172 INITIATING METHIONINE SEQRES 1 A 258 MET GLU LEU SER PHE GLY ALA ARG ALA GLU LEU PRO ARG SEQRES 2 A 258 ILE HIS PRO VAL ALA SER LYS LEU LEU ARG LEU MET GLN SEQRES 3 A 258 LYS LYS GLU THR ASN LEU CYS LEU SER ALA ASP VAL SER SEQRES 4 A 258 LEU ALA ARG GLU LEU LEU GLN LEU ALA ASP ALA LEU GLY SEQRES 5 A 258 PRO SER ILE CYS MET LEU LYS THR HIS VAL ASP ILE LEU SEQRES 6 A 258 ASN ASP PHE THR LEU ASP VAL MET LYS GLU LEU ILE THR SEQRES 7 A 258 LEU ALA LYS CSS HIS GLU PHE LEU ILE PHE GLU ASP ARG SEQRES 8 A 258 LYS PHE ALA ASP ILE GLY ASN THR VAL LYS LYS GLN TYR SEQRES 9 A 258 GLU GLY GLY ILE PHE LYS ILE ALA SER TRP ALA ASP LEU SEQRES 10 A 258 VAL ASN ALA HIS VAL VAL PRO GLY SER GLY VAL VAL LYS SEQRES 11 A 258 GLY LEU GLN GLU VAL GLY LEU PRO LEU HIS ARG GLY CYS SEQRES 12 A 258 LEU LEU ILE ALA GLU MET SER SER THR GLY SER LEU ALA SEQRES 13 A 258 THR GLY ASP TYR THR ARG ALA ALA VAL ARG MET ALA GLU SEQRES 14 A 258 GLU HIS SER GLU PHE VAL VAL GLY PHE ILE SER GLY SER SEQRES 15 A 258 ARG VAL SER MET LYS PRO GLU PHE LEU HIS LEU THR PRO SEQRES 16 A 258 GLY VAL GLN LEU GLU ALA GLY GLY ASP ASN LEU GLY GLN SEQRES 17 A 258 GLN TYR ASN SER PRO GLN GLU VAL ILE GLY LYS ARG GLY SEQRES 18 A 258 SER ASP ILE ILE ILE VAL GLY ARG GLY ILE ILE SER ALA SEQRES 19 A 258 ALA ASP ARG LEU GLU ALA ALA GLU MET TYR ARG LYS ALA SEQRES 20 A 258 ALA TRP GLU ALA TYR LEU SER ARG LEU GLY VAL MODRES 9HDU CSS A 304 CYS MODIFIED RESIDUE HET CSS A 304 12 HET XMP A 501 36 HET PRO A 502 15 HETNAM CSS S-MERCAPTOCYSTEINE HETNAM XMP XANTHOSINE-5'-MONOPHOSPHATE HETNAM PRO PROLINE HETSYN XMP 5-MONOPHOSPHATE-9-BETA-D-RIBOFURANOSYL XANTHINE FORMUL 1 CSS C3 H7 N O2 S2 FORMUL 2 XMP C10 H14 N4 O9 P 1+ FORMUL 3 PRO C5 H9 N O2 FORMUL 4 HOH *286(H2 O) HELIX 1 AA1 SER A 226 ALA A 231 1 6 HELIX 2 AA2 HIS A 237 GLU A 251 1 15 HELIX 3 AA3 LEU A 262 GLY A 274 1 13 HELIX 4 AA4 PRO A 275 ILE A 277 5 3 HELIX 5 AA5 HIS A 283 LEU A 287 5 5 HELIX 6 AA6 THR A 291 GLU A 306 1 16 HELIX 7 AA7 ILE A 318 GLY A 328 1 11 HELIX 8 AA8 LYS A 332 ALA A 337 1 6 HELIX 9 AA9 SER A 348 LEU A 359 1 12 HELIX 10 AB1 GLY A 380 HIS A 393 1 14 HELIX 11 AB2 SER A 434 LYS A 441 1 8 HELIX 12 AB3 GLY A 450 SER A 455 1 6 HELIX 13 AB4 ASP A 458 GLY A 479 1 22 SHEET 1 AA1 9 LEU A 254 SER A 257 0 SHEET 2 AA1 9 MET A 279 THR A 282 1 O LYS A 281 N LEU A 256 SHEET 3 AA1 9 LEU A 308 PHE A 315 1 O ASP A 312 N THR A 282 SHEET 4 AA1 9 LEU A 339 HIS A 343 1 O HIS A 343 N PHE A 315 SHEET 5 AA1 9 GLY A 364 ILE A 368 1 O ILE A 368 N ALA A 342 SHEET 6 AA1 9 VAL A 397 ILE A 401 1 O VAL A 398 N CYS A 365 SHEET 7 AA1 9 LEU A 413 THR A 416 1 O LEU A 413 N PHE A 400 SHEET 8 AA1 9 ILE A 446 VAL A 449 1 O ILE A 446 N THR A 416 SHEET 9 AA1 9 LEU A 254 SER A 257 1 N CYS A 255 O ILE A 447 LINK C LYS A 303 N CSS A 304 1555 1555 1.33 LINK C CSS A 304 N HIS A 305 1555 1555 1.33 CRYST1 77.360 116.690 61.870 90.00 90.00 90.00 C 2 2 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 0.012927 0.000000 0.000000 0.00000 SCALE2 0.000000 0.008570 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016163 0.00000 CONECT 1535 1555 CONECT 1555 1535 1556 1562 CONECT 1556 1555 1557 1560 1563 CONECT 1557 1556 1558 1564 1565 CONECT 1558 1557 1559 CONECT 1559 1558 1566 CONECT 1560 1556 1561 1567 CONECT 1561 1560 CONECT 1562 1555 CONECT 1563 1556 CONECT 1564 1557 CONECT 1565 1557 CONECT 1566 1559 CONECT 1567 1560 CONECT 4668 4669 4670 4671 4672 CONECT 4669 4668 CONECT 4670 4668 CONECT 4671 4668 4673 CONECT 4672 4668 CONECT 4673 4671 4674 4692 4693 CONECT 4674 4673 4675 4690 4694 CONECT 4675 4674 4676 CONECT 4676 4675 4677 4688 4695 CONECT 4677 4676 4678 4687 CONECT 4678 4677 4679 4685 CONECT 4679 4678 4681 4696 CONECT 4680 4681 4683 4697 CONECT 4681 4679 4680 4682 CONECT 4682 4681 CONECT 4683 4680 4684 4685 CONECT 4684 4683 CONECT 4685 4678 4683 4686 CONECT 4686 4685 4687 4698 CONECT 4687 4677 4686 4699 CONECT 4688 4676 4689 4690 4700 CONECT 4689 4688 4701 CONECT 4690 4674 4688 4691 4702 CONECT 4691 4690 4703 CONECT 4692 4673 CONECT 4693 4673 CONECT 4694 4674 CONECT 4695 4676 CONECT 4696 4679 CONECT 4697 4680 CONECT 4698 4686 CONECT 4699 4687 CONECT 4700 4688 CONECT 4701 4689 CONECT 4702 4690 CONECT 4703 4691 MASTER 301 0 3 13 9 0 0 6 2285 1 50 20 END