HEADER TRANSFERASE 25-JUN-98 1DNA TITLE D221(169)N MUTANT DOES NOT PROMOTE OPENING OF THE COFACTOR TITLE 2 IMIDAZOLIDINE RING COMPND MOL_ID: 1; COMPND 2 MOLECULE: THYMIDYLATE SYNTHASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 2.1.1.45; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 CELL_LINE: X2913; SOURCE 5 GENE: THYA; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_CELL_LINE: CHI-2913; SOURCE 9 EXPRESSION_SYSTEM_VECTOR: THYA GENE CLONED INTO BLUESCRIPT (FROM SOURCE 10 STATAGENE); SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PTHYA-D169N KEYWDS TRANSFERASE, ACTIVE SITE MUTANT, REACTION INTERMEDIATE, KEYWDS 2 METHYLTRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR C.R.SAGE,M.D.MICHELITSCH,J.FINER-MOORE,R.M.STROUD REVDAT 5 03-NOV-21 1DNA 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 1DNA 1 VERSN REVDAT 3 24-FEB-09 1DNA 1 VERSN REVDAT 2 18-NOV-98 1DNA 3 HET COMPND REMARK HETATM REVDAT 2 2 3 SEQADV MODRES LINK SOURCE REVDAT 2 3 3 ATOM SEQRES FORMUL JRNL REVDAT 2 4 3 KEYWDS CONECT HETNAM REVDAT 1 04-NOV-98 1DNA 0 JRNL AUTH C.R.SAGE,M.D.MICHELITSCH,T.J.STOUT,D.BIERMANN,R.NISSEN, JRNL AUTH 2 J.FINER-MOORE,R.M.STROUD JRNL TITL D221 IN THYMIDYLATE SYNTHASE CONTROLS CONFORMATION CHANGE, JRNL TITL 2 AND THEREBY OPENING OF THE IMIDAZOLIDINE. JRNL REF BIOCHEMISTRY V. 37 13893 1998 JRNL REFN ISSN 0006-2960 JRNL PMID 9753479 JRNL DOI 10.1021/BI9810510 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.M.STROUD,J.S.FINER-MOORE REMARK 1 TITL STEREOCHEMISTRY OF A MULTISTEP/BIPARTITE METHYL TRANSFER REMARK 1 TITL 2 REACTION: THYMIDYLATE SYNTHASE REMARK 1 REF FASEB J. V. 7 671 1993 REMARK 1 REFN ISSN 0892-6638 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.R.MONTFORT,K.M.PERRY,E.B.FAUMAN,J.S.FINER-MOORE,G.F.MALEY, REMARK 1 AUTH 2 L.HARDY,F.MALEY,R.M.STROUD REMARK 1 TITL STRUCTURE, MULTIPLE SITE BINDING, AND SEGMENTAL REMARK 1 TITL 2 ACCOMMODATION IN THYMIDYLATE SYNTHASE ON BINDING DUMP AND AN REMARK 1 TITL 3 ANTI-FOLATE REMARK 1 REF BIOCHEMISTRY V. 29 6964 1990 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 7.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 100000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 78.4 REMARK 3 NUMBER OF REFLECTIONS : 24287 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) : 0.180 REMARK 3 FREE R VALUE : 0.226 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2404 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.33 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 52.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2523 REMARK 3 BIN R VALUE (WORKING SET) : 0.2630 REMARK 3 BIN FREE R VALUE : 0.3100 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 289 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 : 110 REMARK 3 SOLVENT ATOMS : 216 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.00 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) : 0.27 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) : 0.37 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.23 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.100 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) : 2.970 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.410 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 3.570 ; 1.500 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.200 ; 2.000 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 : PARAM19X.PRO REMARK 3 PARAMETER FILE 2 : PARAM11.WAT REMARK 3 PARAMETER FILE 3 : PARAMED.LIG REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPH19X.PRO REMARK 3 TOPOLOGY FILE 2 : SAGEE58Q_TOPH11.WAT REMARK 3 TOPOLOGY FILE 3 : TOPO_COV.DUMP REMARK 3 TOPOLOGY FILE 4 : TOPO.CB3 REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1DNA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000172855. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : OCT-95 REMARK 200 TEMPERATURE (KELVIN) : 294 REMARK 200 PH : 7.7 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 : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25208 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 78.0 REMARK 200 DATA REDUNDANCY : 1.500 REMARK 200 R MERGE (I) : 0.05900 REMARK 200 R SYM (I) : 0.05900 REMARK 200 FOR THE DATA SET : 8.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.26 REMARK 200 COMPLETENESS FOR SHELL (%) : 52.6 REMARK 200 DATA REDUNDANCY IN SHELL : 1.30 REMARK 200 R MERGE FOR SHELL (I) : 0.18400 REMARK 200 R SYM FOR SHELL (I) : 0.18400 REMARK 200 FOR SHELL : 2.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: DIFFERENCE FOURIER REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.40 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.7 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 34.08900 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 34.08900 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 34.08900 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: 8100 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19080 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 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 PRO A 43 71.72 -69.72 REMARK 500 VAL A 93 -159.83 -88.43 REMARK 500 TYR A 94 -71.31 -28.63 REMARK 500 ALA A 100 58.97 -153.05 REMARK 500 ASP A 122 58.66 -144.94 REMARK 500 TYR B 94 -69.33 -14.53 REMARK 500 ALA B 100 57.20 -154.19 REMARK 500 ASN B 211 24.53 -78.39 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 UMP A 603 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CB3 A 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE UMP B 604 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CB3 B 602 DBREF 1DNA A 2 264 UNP P0A884 TYSY_ECOLI 2 264 DBREF 1DNA B 2 264 UNP P0A884 TYSY_ECOLI 2 264 SEQADV 1DNA ASN A 169 UNP P0A884 ASP 169 ENGINEERED MUTATION SEQADV 1DNA ASN B 169 UNP P0A884 ASP 169 ENGINEERED MUTATION 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 ASN 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 ASN 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 1DNA CXM A 1 MET N-CARBOXYMETHIONINE MODRES 1DNA CXM B 1 MET N-CARBOXYMETHIONINE HET CXM A 1 11 HET CXM B 1 11 HET UMP A 603 20 HET CB3 A 601 35 HET UMP B 604 20 HET CB3 B 602 35 HETNAM CXM N-CARBOXYMETHIONINE HETNAM UMP 2'-DEOXYURIDINE 5'-MONOPHOSPHATE HETNAM CB3 10-PROPARGYL-5,8-DIDEAZAFOLIC ACID HETSYN UMP DUMP FORMUL 1 CXM 2(C6 H11 N O4 S) FORMUL 3 UMP 2(C9 H13 N2 O8 P) FORMUL 4 CB3 2(C24 H23 N5 O6) FORMUL 7 HOH *216(H2 O) HELIX 1 1 LYS A 2 GLU A 14 1 13 HELIX 2 2 LEU A 38 ASP A 40 5 3 HELIX 3 3 LEU A 52 GLN A 64 1 13 HELIX 4 4 ILE A 69 ASN A 75 5 7 HELIX 5 5 ASP A 81 TRP A 83 5 3 HELIX 6 6 TYR A 94 ALA A 100 1 7 HELIX 7 7 GLN A 111 ASN A 121 1 11 HELIX 8 8 VAL A 135 LYS A 140 5 6 HELIX 9 9 GLY A 173 GLN A 191 1 19 HELIX 10 10 SER A 210 SER A 221 5 12 HELIX 11 11 ILE A 239 ASP A 241 5 3 HELIX 12 12 PHE A 244 ASP A 246 5 3 HELIX 13 13 LYS B 2 GLU B 14 1 13 HELIX 14 14 LEU B 52 LEU B 63 1 12 HELIX 15 15 ALA B 70 ASN B 75 1 6 HELIX 16 16 TYR B 94 ALA B 100 1 7 HELIX 17 17 GLN B 111 ASN B 121 1 11 HELIX 18 18 VAL B 135 LYS B 140 5 6 HELIX 19 19 GLY B 173 GLN B 191 1 19 HELIX 20 20 SER B 210 SER B 221 5 12 HELIX 21 21 ILE B 239 ASP B 241 5 3 HELIX 22 22 PHE B 244 ASP B 246 5 3 SHEET 1 A 4 THR A 16 LYS A 18 0 SHEET 2 A 4 THR A 26 PHE A 30 -1 N SER A 28 O THR A 16 SHEET 3 A 4 ASP A 205 TYR A 209 -1 N LEU A 208 O LEU A 27 SHEET 4 A 4 SER A 167 ASN A 169 1 N CYS A 168 O ASP A 205 SHEET 1 B 5 HIS A 32 ASN A 37 0 SHEET 2 B 5 ASP A 198 GLY A 203 -1 N GLY A 203 O HIS A 32 SHEET 3 B 5 LYS A 158 GLN A 165 1 N CYS A 161 O VAL A 200 SHEET 4 B 5 HIS A 147 ALA A 155 -1 N ALA A 155 O LYS A 158 SHEET 5 B 5 ILE A 129 SER A 131 -1 N VAL A 130 O PHE A 150 SHEET 1 C 2 LYS A 229 ILE A 232 0 SHEET 2 C 2 PHE A 247 GLU A 250 -1 N GLU A 250 O LYS A 229 SHEET 1 D 4 THR B 16 LYS B 18 0 SHEET 2 D 4 THR B 26 PHE B 30 -1 N SER B 28 O THR B 16 SHEET 3 D 4 ASP B 205 TYR B 209 -1 N LEU B 208 O LEU B 27 SHEET 4 D 4 SER B 167 ASN B 169 1 N CYS B 168 O ASP B 205 SHEET 1 E 5 HIS B 32 ASN B 37 0 SHEET 2 E 5 ASP B 198 GLY B 203 -1 N GLY B 203 O HIS B 32 SHEET 3 E 5 LYS B 158 GLN B 165 1 N CYS B 161 O VAL B 200 SHEET 4 E 5 HIS B 147 ALA B 155 -1 N ALA B 155 O LYS B 158 SHEET 5 E 5 ILE B 129 SER B 131 -1 N VAL B 130 O PHE B 150 SHEET 1 F 2 LYS B 229 ILE B 232 0 SHEET 2 F 2 PHE B 247 GLU B 250 -1 N GLU B 250 O LYS B 229 LINK C CXM A 1 N LYS A 2 1555 1555 1.33 LINK SG CYS A 146 C6 UMP A 603 1555 1555 1.81 LINK C CXM B 1 N LYS B 2 1555 1555 1.33 LINK SG CYS B 146 C6 UMP B 604 1555 1555 1.82 SITE 1 AC1 15 ARG A 21 CYS A 146 HIS A 147 GLN A 165 SITE 2 AC1 15 ARG A 166 SER A 167 CYS A 168 ASN A 169 SITE 3 AC1 15 ASN A 177 HIS A 207 TYR A 209 CB3 A 601 SITE 4 AC1 15 HOH A 729 ARG B 126 ARG B 127 SITE 1 AC2 17 ARG A 53 GLU A 58 ILE A 79 TRP A 83 SITE 2 AC2 17 LEU A 143 ASN A 169 GLY A 173 PHE A 176 SITE 3 AC2 17 ASN A 177 TYR A 209 VAL A 262 ALA A 263 SITE 4 AC2 17 UMP A 603 HOH A 864 HOH A 873 HOH A 915 SITE 5 AC2 17 HOH A 917 SITE 1 AC3 14 ARG A 126 ARG A 127 ARG B 21 CYS B 146 SITE 2 AC3 14 HIS B 147 GLN B 165 ARG B 166 SER B 167 SITE 3 AC3 14 CYS B 168 ASN B 169 ASN B 177 HIS B 207 SITE 4 AC3 14 TYR B 209 CB3 B 602 SITE 1 AC4 16 HIS B 51 SER B 54 ILE B 79 TRP B 80 SITE 2 AC4 16 TRP B 83 LEU B 143 ASN B 169 LEU B 172 SITE 3 AC4 16 GLY B 173 ASN B 177 TYR B 209 VAL B 262 SITE 4 AC4 16 ALA B 263 UMP B 604 HOH B 853 HOH B 893 CRYST1 127.221 127.221 68.178 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 0.007860 0.004538 0.000000 0.00000 SCALE2 0.000000 0.009076 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014667 0.00000 HETATM 1 N CXM A 1 22.162 20.346 49.634 1.00 19.64 N HETATM 2 CA CXM A 1 23.517 20.884 49.747 1.00 22.89 C HETATM 3 CB CXM A 1 24.357 20.531 48.512 1.00 24.57 C HETATM 4 CG CXM A 1 24.545 19.041 48.274 1.00 24.23 C HETATM 5 SD CXM A 1 25.676 18.701 46.923 1.00 24.83 S HETATM 6 CE CXM A 1 24.614 18.933 45.522 1.00 20.49 C HETATM 7 C CXM A 1 23.455 22.398 49.891 1.00 23.09 C HETATM 8 O CXM A 1 22.577 23.049 49.318 1.00 28.74 O HETATM 9 CN CXM A 1 21.809 19.187 50.182 1.00 25.55 C HETATM 10 ON1 CXM A 1 20.720 19.006 49.599 1.00 22.58 O HETATM 11 ON2 CXM A 1 22.450 18.247 50.690 1.00 29.06 O