HEADER TRANSFERASE 06-FEB-02 1KZI TITLE CRYSTAL STRUCTURE OF ECTS/DUMP/THF COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: THYMIDYLATE SYNTHASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: TS, TSASE; COMPND 5 EC: 2.1.1.45; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ENZYME SUBSTRATE COMPLEX, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR T.A.FRITZ,L.LIU,J.S.FINER-MOORE,R.M.STROUD REVDAT 5 16-OCT-24 1KZI 1 REMARK REVDAT 4 16-AUG-23 1KZI 1 REMARK SEQADV LINK REVDAT 3 13-JUL-11 1KZI 1 VERSN REVDAT 2 24-FEB-09 1KZI 1 VERSN REVDAT 1 03-JUL-02 1KZI 0 JRNL AUTH T.A.FRITZ,L.LIU,J.S.FINER-MOORE,R.M.STROUD JRNL TITL TRYPTOPHAN 80 AND LEUCINE 143 ARE CRITICAL FOR THE HYDRIDE JRNL TITL 2 TRANSFER STEP OF THYMIDYLATE SYNTHASE BY CONTROLLING ACTIVE JRNL TITL 3 SITE ACCESS. JRNL REF BIOCHEMISTRY V. 41 7021 2002 JRNL REFN ISSN 0006-2960 JRNL PMID 12033935 JRNL DOI 10.1021/BI012108C REMARK 2 REMARK 2 RESOLUTION. 1.75 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 29.46 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1912305.650 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 59490 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) : 0.197 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 3007 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.75 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.86 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 92.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 8758 REMARK 3 BIN R VALUE (WORKING SET) : 0.3450 REMARK 3 BIN FREE R VALUE : 0.3750 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 467 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.017 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4306 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 138 REMARK 3 SOLVENT ATOMS : 361 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 25.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.06000 REMARK 3 B22 (A**2) : -1.06000 REMARK 3 B33 (A**2) : 2.13000 REMARK 3 B12 (A**2) : 0.33000 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) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.17 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.19 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.900 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED 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 : FLAT MODEL REMARK 3 KSOL : 0.38 REMARK 3 BSOL : 43.37 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : FORM_DUMP_THF.PARAM REMARK 3 PARAMETER FILE 3 : DTT_ODT_GCL.PARAM REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : FORM_DUMP_THF.TOPO REMARK 3 TOPOLOGY FILE 3 : DTT_ODT_GCL.TOPO REMARK 3 TOPOLOGY FILE 4 : ION.TOPO REMARK 3 TOPOLOGY FILE 5 : WATER.TOP REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1KZI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-FEB-02. REMARK 100 THE DEPOSITION ID IS D_1000015505. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-AUG-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.6 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC MIRRORS REMARK 200 OPTICS : OSMIC MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 59657 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.750 REMARK 200 RESOLUTION RANGE LOW (A) : 29.460 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL 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) : 1.81 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.1 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 : 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 ID 2KCE WITH LIGANDS AND WATER REMOVED. REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.47 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM TAPS, 2.6 M AMMONIUM SULFATE, REMARK 280 10 MM DTT, PH 8.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63 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 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/2 REMARK 290 6555 X-Y,X,Z+1/2 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 -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 33.38550 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 33.38550 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 33.38550 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 DIMER COMPRISING THE ASYMMETRIC UNIT IS THE FUNCTIONAL REMARK 300 BIOLOGICAL ENTITY. 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: 8800 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19810 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 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 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 O GLY A 15 NH2 ARG A 107 6545 2.03 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 TYR A 94 -69.38 -24.11 REMARK 500 ALA A 100 65.78 -153.63 REMARK 500 ASP A 122 65.09 -150.58 REMARK 500 PRO B 43 60.05 -69.34 REMARK 500 ILE B 69 2.52 -66.99 REMARK 500 GLU B 82 -5.32 -58.08 REMARK 500 TYR B 94 -68.28 -24.43 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 THG 303 IS ASSOCIATED WITH CHAIN A. REMARK 600 THG 305 IS ASSOCIATED WITH CHAIN B. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO3 A 803 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO3 A 804 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO3 A 805 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE UMP A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THG A 303 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTU A 800 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE UMP B 304 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THG B 305 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTT B 802 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 801 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1KZJ RELATED DB: PDB REMARK 900 1KZJ CONTAINS THE SAME PROTEIN DBREF 1KZI A 1 264 UNP P0A884 TYSY_ECOLI 1 264 DBREF 1KZI B 1 264 UNP P0A884 TYSY_ECOLI 1 264 SEQADV 1KZI CXM A 1 UNP P0A884 MET 1 MODIFIED RESIDUE SEQADV 1KZI CXM B 1 UNP P0A884 MET 1 MODIFIED RESIDUE SEQRES 1 A 264 CXM LYS GLN TYR LEU GLU LEU MET GLN LYS VAL LEU ASP SEQRES 2 A 264 GLU GLY THR GLN LYS ASN ASP ARG THR GLY THR GLY THR SEQRES 3 A 264 LEU SER ILE PHE GLY HIS GLN MET ARG PHE ASN LEU GLN SEQRES 4 A 264 ASP GLY PHE PRO LEU VAL THR THR LYS ARG CYS HIS LEU SEQRES 5 A 264 ARG SER ILE ILE HIS GLU LEU LEU TRP PHE LEU GLN GLY SEQRES 6 A 264 ASP THR ASN ILE ALA TYR LEU HIS GLU ASN ASN VAL THR SEQRES 7 A 264 ILE TRP ASP GLU TRP ALA ASP GLU ASN GLY ASP LEU GLY SEQRES 8 A 264 PRO VAL TYR GLY LYS GLN TRP ARG ALA TRP PRO THR PRO SEQRES 9 A 264 ASP GLY ARG HIS ILE ASP GLN ILE THR THR VAL LEU ASN SEQRES 10 A 264 GLN LEU LYS ASN ASP PRO ASP SER ARG ARG ILE ILE VAL SEQRES 11 A 264 SER ALA TRP ASN VAL GLY GLU LEU ASP LYS MET ALA LEU SEQRES 12 A 264 ALA PRO CYS HIS ALA PHE PHE GLN PHE TYR VAL ALA ASP SEQRES 13 A 264 GLY LYS LEU SER CYS GLN LEU TYR GLN ARG SER CYS ASP SEQRES 14 A 264 VAL PHE LEU GLY LEU PRO PHE ASN ILE ALA SER TYR ALA SEQRES 15 A 264 LEU LEU VAL HIS MET MET ALA GLN GLN CYS ASP LEU GLU SEQRES 16 A 264 VAL GLY ASP PHE VAL TRP THR GLY GLY ASP THR HIS LEU SEQRES 17 A 264 TYR SER ASN HIS MET ASP GLN THR HIS LEU GLN LEU SER SEQRES 18 A 264 ARG GLU PRO ARG PRO LEU PRO LYS LEU ILE ILE LYS ARG SEQRES 19 A 264 LYS PRO GLU SER ILE PHE ASP TYR ARG PHE GLU ASP PHE SEQRES 20 A 264 GLU ILE GLU GLY TYR ASP PRO HIS PRO GLY ILE LYS ALA SEQRES 21 A 264 PRO VAL ALA ILE SEQRES 1 B 264 CXM LYS GLN TYR LEU GLU LEU MET GLN LYS VAL LEU ASP SEQRES 2 B 264 GLU GLY THR GLN LYS ASN ASP ARG THR GLY THR GLY THR SEQRES 3 B 264 LEU SER ILE PHE GLY HIS GLN MET ARG PHE ASN LEU GLN SEQRES 4 B 264 ASP GLY PHE PRO LEU VAL THR THR LYS ARG CYS HIS LEU SEQRES 5 B 264 ARG SER ILE ILE HIS GLU LEU LEU TRP PHE LEU GLN GLY SEQRES 6 B 264 ASP THR ASN ILE ALA TYR LEU HIS GLU ASN ASN VAL THR SEQRES 7 B 264 ILE TRP ASP GLU TRP ALA ASP GLU ASN GLY ASP LEU GLY SEQRES 8 B 264 PRO VAL TYR GLY LYS GLN TRP ARG ALA TRP PRO THR PRO SEQRES 9 B 264 ASP GLY ARG HIS ILE ASP GLN ILE THR THR VAL LEU ASN SEQRES 10 B 264 GLN LEU LYS ASN ASP PRO ASP SER ARG ARG ILE ILE VAL SEQRES 11 B 264 SER ALA TRP ASN VAL GLY GLU LEU ASP LYS MET ALA LEU SEQRES 12 B 264 ALA PRO CYS HIS ALA PHE PHE GLN PHE TYR VAL ALA ASP SEQRES 13 B 264 GLY LYS LEU SER CYS GLN LEU TYR GLN ARG SER CYS ASP SEQRES 14 B 264 VAL PHE LEU GLY LEU PRO PHE ASN ILE ALA SER TYR ALA SEQRES 15 B 264 LEU LEU VAL HIS MET MET ALA GLN GLN CYS ASP LEU GLU SEQRES 16 B 264 VAL GLY ASP PHE VAL TRP THR GLY GLY ASP THR HIS LEU SEQRES 17 B 264 TYR SER ASN HIS MET ASP GLN THR HIS LEU GLN LEU SER SEQRES 18 B 264 ARG GLU PRO ARG PRO LEU PRO LYS LEU ILE ILE LYS ARG SEQRES 19 B 264 LYS PRO GLU SER ILE PHE ASP TYR ARG PHE GLU ASP PHE SEQRES 20 B 264 GLU ILE GLU GLY TYR ASP PRO HIS PRO GLY ILE LYS ALA SEQRES 21 B 264 PRO VAL ALA ILE MODRES 1KZI CXM A 1 MET N-CARBOXYMETHIONINE MODRES 1KZI CXM B 1 MET N-CARBOXYMETHIONINE HET CXM A 1 11 HET CXM B 1 11 HET CO3 A 803 4 HET CO3 A 804 4 HET CO3 A 805 4 HET UMP A 302 20 HET THG A 303 32 HET DTU A 800 8 HET GOL A 801 6 HET UMP B 304 20 HET THG B 305 32 HET DTT B 802 8 HETNAM CXM N-CARBOXYMETHIONINE HETNAM CO3 CARBONATE ION HETNAM UMP 2'-DEOXYURIDINE 5'-MONOPHOSPHATE HETNAM THG (6S)-5,6,7,8-TETRAHYDROFOLATE HETNAM DTU (2R,3S)-1,4-DIMERCAPTOBUTANE-2,3-DIOL HETNAM GOL GLYCEROL HETNAM DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE HETSYN UMP DUMP HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL HETSYN DTT 1,4-DITHIOTHREITOL FORMUL 1 CXM 2(C6 H11 N O4 S) FORMUL 3 CO3 3(C O3 2-) FORMUL 6 UMP 2(C9 H13 N2 O8 P) FORMUL 7 THG 2(C19 H23 N7 O6) FORMUL 8 DTU C4 H10 O2 S2 FORMUL 9 GOL C3 H8 O3 FORMUL 12 DTT C4 H10 O2 S2 FORMUL 13 HOH *361(H2 O) HELIX 1 1 CXM A 1 GLY A 15 1 15 HELIX 2 2 GLN A 39 GLY A 41 5 3 HELIX 3 3 HIS A 51 GLY A 65 1 15 HELIX 4 4 ILE A 69 ASN A 75 1 7 HELIX 5 5 TRP A 80 ALA A 84 5 5 HELIX 6 6 VAL A 93 ALA A 100 1 8 HELIX 7 7 ASP A 110 ASP A 122 1 13 HELIX 8 8 ASN A 134 MET A 141 5 8 HELIX 9 9 LEU A 172 CYS A 192 1 21 HELIX 10 10 HIS A 212 SER A 221 1 10 HELIX 11 11 ARG A 243 GLU A 245 5 3 HELIX 12 12 CXM B 1 GLY B 15 1 15 HELIX 13 13 GLN B 39 GLY B 41 5 3 HELIX 14 14 HIS B 51 GLN B 64 1 14 HELIX 15 15 ILE B 69 ASN B 75 1 7 HELIX 16 16 TRP B 80 ALA B 84 5 5 HELIX 17 17 VAL B 93 ALA B 100 1 8 HELIX 18 18 ASP B 110 ASP B 122 1 13 HELIX 19 19 ASN B 134 MET B 141 5 8 HELIX 20 20 LEU B 172 CYS B 192 1 21 HELIX 21 21 HIS B 212 SER B 221 1 10 HELIX 22 22 ARG B 243 GLU B 245 5 3 SHEET 1 A 6 THR A 16 LYS A 18 0 SHEET 2 A 6 THR A 26 ASN A 37 -1 O THR A 26 N LYS A 18 SHEET 3 A 6 GLU A 195 TYR A 209 -1 O TRP A 201 N MET A 34 SHEET 4 A 6 LYS A 158 ASP A 169 1 N GLN A 165 O THR A 202 SHEET 5 A 6 HIS A 147 ALA A 155 -1 N TYR A 153 O SER A 160 SHEET 6 A 6 ILE A 129 SER A 131 -1 N VAL A 130 O PHE A 150 SHEET 1 B 2 TRP A 101 PRO A 102 0 SHEET 2 B 2 HIS A 108 ILE A 109 -1 O ILE A 109 N TRP A 101 SHEET 1 C 2 LYS A 229 ILE A 232 0 SHEET 2 C 2 PHE A 247 GLU A 250 -1 O GLU A 250 N LYS A 229 SHEET 1 D 6 THR B 16 LYS B 18 0 SHEET 2 D 6 THR B 26 ASN B 37 -1 O SER B 28 N THR B 16 SHEET 3 D 6 GLU B 195 TYR B 209 -1 O TRP B 201 N MET B 34 SHEET 4 D 6 LYS B 158 ASP B 169 1 N GLN B 165 O THR B 202 SHEET 5 D 6 HIS B 147 ALA B 155 -1 N PHE B 149 O TYR B 164 SHEET 6 D 6 ILE B 129 SER B 131 -1 N VAL B 130 O PHE B 150 SHEET 1 E 2 TRP B 101 PRO B 102 0 SHEET 2 E 2 HIS B 108 ILE B 109 -1 O ILE B 109 N TRP B 101 SHEET 1 F 2 LYS B 229 ILE B 232 0 SHEET 2 F 2 PHE B 247 GLU B 250 -1 O GLU B 250 N LYS B 229 LINK C CXM A 1 N LYS A 2 1555 1555 1.33 LINK SG CYS A 146 C6 UMP A 302 1555 1555 1.67 LINK SG CYS A 192 S4 DTU A 800 1555 1555 2.07 LINK C CXM B 1 N LYS B 2 1555 1555 1.33 LINK SG CYS B 146 C6 UMP B 304 1555 1555 1.69 SITE 1 AC1 3 ARG A 99 HOH A 558 HOH A 738 SITE 1 AC2 3 ARG A 49 GLY A 257 HOH A 493 SITE 1 AC3 4 GLU A 223 ARG A 225 HIS A 255 HOH A 744 SITE 1 AC4 18 ARG A 21 TYR A 94 CYS A 146 HIS A 147 SITE 2 AC4 18 GLN A 165 ARG A 166 SER A 167 CYS A 168 SITE 3 AC4 18 ASP A 169 ASN A 177 HIS A 207 TYR A 209 SITE 4 AC4 18 THG A 303 HOH A 412 HOH A 432 HOH A 658 SITE 5 AC4 18 ARG B 126 ARG B 127 SITE 1 AC5 21 HIS A 51 ILE A 79 TRP A 80 TRP A 83 SITE 2 AC5 21 LEU A 143 ASP A 169 GLY A 173 PHE A 176 SITE 3 AC5 21 VAL A 262 ALA A 263 UMP A 302 HOH A 419 SITE 4 AC5 21 HOH A 442 HOH A 448 HOH A 467 HOH A 551 SITE 5 AC5 21 HOH A 575 HOH A 597 HOH A 615 HOH A 625 SITE 6 AC5 21 HOH A 646 SITE 1 AC6 4 LEU A 116 LYS A 120 GLN A 191 CYS A 192 SITE 1 AC7 16 ARG A 126 ARG A 127 ARG B 21 CYS B 146 SITE 2 AC7 16 HIS B 147 GLN B 165 ARG B 166 SER B 167 SITE 3 AC7 16 CYS B 168 ASP B 169 ASN B 177 HIS B 207 SITE 4 AC7 16 TYR B 209 THG B 305 HOH B 439 HOH B 509 SITE 1 AC8 13 ILE B 79 TRP B 83 LEU B 143 ASP B 169 SITE 2 AC8 13 GLY B 173 VAL B 262 ALA B 263 UMP B 304 SITE 3 AC8 13 HOH B 461 HOH B 480 HOH B 569 HOH B 737 SITE 4 AC8 13 HOH B 749 SITE 1 AC9 8 PRO B 224 ARG B 225 PRO B 226 ARG B 234 SITE 2 AC9 8 ARG B 243 GLU B 245 ASP B 246 HOH B 735 SITE 1 BC1 4 GLN A 9 GLN A 64 ARG A 99 HOH A 599 CRYST1 125.296 125.296 66.771 90.00 90.00 120.00 P 63 12 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 0.007981 0.004608 0.000000 0.00000 SCALE2 0.000000 0.009216 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014977 0.00000 HETATM 1 N CXM A 1 97.088 8.776 20.262 1.00 17.71 N HETATM 2 CA CXM A 1 95.954 9.708 20.534 1.00 18.17 C HETATM 3 CB CXM A 1 95.785 10.711 19.389 1.00 19.76 C HETATM 4 CG CXM A 1 96.987 11.588 19.142 1.00 21.07 C HETATM 5 SD CXM A 1 96.706 12.742 17.778 1.00 20.95 S HETATM 6 CE CXM A 1 97.138 11.711 16.353 1.00 18.83 C HETATM 7 C CXM A 1 94.670 8.909 20.665 1.00 19.38 C HETATM 8 O CXM A 1 94.505 7.869 20.025 1.00 16.75 O HETATM 9 CN CXM A 1 98.344 8.915 20.730 1.00 18.78 C HETATM 10 ON1 CXM A 1 99.173 8.011 20.483 1.00 17.90 O HETATM 11 ON2 CXM A 1 98.661 9.947 21.360 1.00 18.17 O