HEADER TRANSFERASE 09-JAN-07 2E7F TITLE 5-METHYLTETRAHYDROFOLATE CORRINOID/IRON SULFUR PROTEIN TITLE 2 METHYLTRANSFERASE COMPLEXED WITH METHYLTETRAHYDROFOLATE TO 2.2 TITLE 3 ANGSROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5-METHYLTETRAHYDROFOLATE CORRINOID/IRON SULFUR PROTEIN COMPND 3 METHYLTRANSFERASE; COMPND 4 CHAIN: A, B; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MOORELLA THERMOACETICA; SOURCE 3 ORGANISM_TAXID: 1525; SOURCE 4 GENE: METR, ACSE; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: B834(DE3)PLYSS(MET-); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET3A KEYWDS METHYLTETRAHYDROFOLATE-PROTEIN COMPLEX, CORRIONOID, VITAMIN B12, TIM KEYWDS 2 BARREL, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR T.I.DOUKOV,C.L.DRENNAN,H.HEMMI,S.W.RAGSDALE REVDAT 5 25-OCT-23 2E7F 1 REMARK LINK REVDAT 4 24-FEB-09 2E7F 1 VERSN REVDAT 3 13-MAR-07 2E7F 1 JRNL REVDAT 2 06-MAR-07 2E7F 1 JRNL REVDAT 1 30-JAN-07 2E7F 0 JRNL AUTH T.I.DOUKOV,H.HEMMI,C.L.DRENNAN,S.W.RAGSDALE JRNL TITL STRUCTURAL AND KINETIC EVIDENCE FOR AN EXTENDED JRNL TITL 2 HYDROGEN-BONDING NETWORK IN CATALYSIS OF METHYL GROUP JRNL TITL 3 TRANSFER. ROLE OF AN ACTIVE SITE ASPARAGINE RESIDUE IN JRNL TITL 4 ACTIVATION OF METHYL TRANSFER BY METHYLTRANSFERASES. JRNL REF J.BIOL.CHEM. V. 282 6609 2007 JRNL REFN ISSN 0021-9258 JRNL PMID 17172470 JRNL DOI 10.1074/JBC.M609828200 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.I.DOUKOV,J.SERAVALLI,J.J.STEZOWSKI,S.W.RAGSDALE REMARK 1 TITL CRYSTAL STRUCTURE OF A METHYLTETRAHYDROFOLATE- AND REMARK 1 TITL 2 CORRINOID-DEPENDENT METHYLTRANSFERASE REMARK 1 REF STRUCTURE V. 8 817 2000 REMARK 1 REFN ISSN 0969-2126 REMARK 1 PMID 10997901 REMARK 1 DOI 10.1016/S0969-2126(00)00172-6 REMARK 2 REMARK 2 RESOLUTION. 2.20 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 : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.88 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 96.0 REMARK 3 NUMBER OF REFLECTIONS : 24177 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) : 0.172 REMARK 3 FREE R VALUE : 0.230 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2586 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) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.26 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 85.77 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.1930 REMARK 3 BIN FREE R VALUE : 0.2450 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 165 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 : 3994 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 68 REMARK 3 SOLVENT ATOMS : 435 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.80 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) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.018 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: NULL REMARK 4 REMARK 4 2E7F COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 11-JAN-07. REMARK 100 THE DEPOSITION ID IS D_1000026319. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-JUL-00 REMARK 200 TEMPERATURE (KELVIN) : 100 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 : X12C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.91938 REMARK 200 MONOCHROMATOR : SI(111) OR SI(220) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRANDEIS - B4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26806 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 30.920 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.2 REMARK 200 DATA REDUNDANCY : 3.800 REMARK 200 R MERGE (I) : 0.08600 REMARK 200 R SYM (I) : 0.08600 REMARK 200 FOR THE DATA SET : 11.5000 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 (%) : 87.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.20600 REMARK 200 FOR SHELL : 3.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: EPMR REMARK 200 STARTING MODEL: PDB ENTRY 1F6Y REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.24 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 8-15% PEGMME 5000, 0.05M CALCIUM REMARK 280 ACETATE, 20% GLYCEROL, 0.05M HEPES BUFFER; 3-FOLD MOLAR EXCESS REMARK 280 OF THE MTHF SUBSTRATE (SCHRICKS LABOLATORIES, JONA, SWITZERLAND) REMARK 280 . THE SUPERSATURATION OF THE PRECIPITANT SOLUTION REQUIRED REMARK 280 DILUTION OF THE PROTEIN-CH3-H4FOLATE COMPLEX BY 50-100-FOLD IN REMARK 280 ORDER TO OBTAIN SINGLE CRYSTALS., PH 7.5, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 298K 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 25.07950 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 67.80850 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 39.27350 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 67.80850 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.07950 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 39.27350 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: THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 2 CHAIN(S) 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: 4740 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20650 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 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 LEU A 162 88.34 61.54 REMARK 500 ALA A 169 40.21 -144.11 REMARK 500 SER A 254 41.49 -103.27 REMARK 500 ASN B 99 -168.64 -116.98 REMARK 500 LEU B 162 88.22 63.50 REMARK 500 ALA B 187 133.92 169.87 REMARK 500 SER B 254 32.62 -94.77 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 CA A3001 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 222 O REMARK 620 2 ASP A 224 OD1 88.0 REMARK 620 3 ASP A 224 OD2 76.3 52.8 REMARK 620 4 HOH A3032 O 148.6 93.9 80.0 REMARK 620 5 HOH A3053 O 77.0 132.3 79.6 78.7 REMARK 620 6 HOH A3059 O 146.1 78.6 116.8 64.1 134.1 REMARK 620 7 HOH A3095 O 75.4 78.0 123.2 135.6 137.6 71.5 REMARK 620 8 HOH A3210 O 103.1 149.5 157.3 91.0 78.2 76.6 77.5 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B4001 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 LYS B 184 NZ REMARK 620 2 GLY B 222 O 78.8 REMARK 620 3 ASP B 224 OD2 65.0 77.4 REMARK 620 4 ASP B 224 OD1 114.4 88.2 49.5 REMARK 620 5 HOH B4083 O 123.5 151.1 94.7 66.4 REMARK 620 6 HOH B4184 O 100.8 94.3 164.5 144.4 98.6 REMARK 620 7 HOH B4220 O 141.4 73.0 130.7 90.7 92.8 56.6 REMARK 620 8 HOH B4221 O 69.0 141.6 70.4 86.6 54.4 111.5 145.1 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 3001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 4001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE C2F A 3000 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE C2F B 4000 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1F6Y RELATED DB: PDB REMARK 900 APO STRUCTURE OF THE WILD TYPE CORRINOID-DEPENDENT REMARK 900 METHYLTETRAHYDROFOLATE METHYLTRANSFERASE REMARK 900 RELATED ID: 1Q8J RELATED DB: PDB REMARK 900 METHIONINE SYNTHASE COMPLEX WITH METHYLTETRAHYDROFOLATE REMARK 900 RELATED ID: 1AJ0 RELATED DB: PDB REMARK 900 DIHYDROPTEROATE SYNTHASE (DHPS), E.COLI, COMPLEXED WITH 7,8- REMARK 900 DIHYDROPTERIN-PYROPHOSPHASE (DHPPP) REMARK 900 RELATED ID: 1AD4 RELATED DB: PDB REMARK 900 DIHYDROPTEROATE SYNTHASE (DHPS), S. AUREUS, COMPLEXED WITH 7,8- REMARK 900 DIHYDRO-6-HYDROXYMETHYL-PTERIN-PYROPHOSPHASE (DHPTPP) REMARK 900 RELATED ID: 1TX0 RELATED DB: PDB REMARK 900 DIHYDROPTEROATE SYNTHASE (DHPS), B. ANTHRACIS, COMPLEXED WITH REMARK 900 PTEROIC ACID REMARK 900 RELATED ID: 1TWW RELATED DB: PDB REMARK 900 DIHYDROPTEROATE SYNTHASE (DHPS), B. ANTHRACIS, COMPLEXED WITH 6- REMARK 900 HYDROXYMETHYL-PTERIN-PYROPHOSPHASE (DHPTPP) DBREF 2E7F A 1 262 UNP Q46389 Q46389_MOOTH 1 262 DBREF 2E7F B 1 262 UNP Q46389 Q46389_MOOTH 1 262 SEQRES 1 A 262 MET LEU ILE ILE GLY GLU ARG ILE ASN GLY MET PHE GLY SEQRES 2 A 262 ASP ILE LYS ARG ALA ILE GLN GLU ARG ASP PRO ALA PRO SEQRES 3 A 262 VAL GLN GLU TRP ALA ARG ARG GLN GLU GLU GLY GLY ALA SEQRES 4 A 262 ARG ALA LEU ASP LEU ASN VAL GLY PRO ALA VAL GLN ASP SEQRES 5 A 262 LYS VAL SER ALA MET GLU TRP LEU VAL GLU VAL THR GLN SEQRES 6 A 262 GLU VAL SER ASN LEU THR LEU CYS LEU ASP SER THR ASN SEQRES 7 A 262 ILE LYS ALA ILE GLU ALA GLY LEU LYS LYS CYS LYS ASN SEQRES 8 A 262 ARG ALA MET ILE ASN SER THR ASN ALA GLU ARG GLU LYS SEQRES 9 A 262 VAL GLU LYS LEU PHE PRO LEU ALA VAL GLU HIS GLY ALA SEQRES 10 A 262 ALA LEU ILE GLY LEU THR MET ASN LYS THR GLY ILE PRO SEQRES 11 A 262 LYS ASP SER ASP THR ARG LEU ALA PHE ALA MET GLU LEU SEQRES 12 A 262 VAL ALA ALA ALA ASP GLU PHE GLY LEU PRO MET GLU ASP SEQRES 13 A 262 LEU TYR ILE ASP PRO LEU ILE LEU PRO ALA ASN VAL ALA SEQRES 14 A 262 GLN ASP HIS ALA PRO GLU VAL LEU LYS THR LEU GLN GLN SEQRES 15 A 262 ILE LYS MET LEU ALA ASP PRO ALA PRO LYS THR VAL LEU SEQRES 16 A 262 GLY LEU SER ASN VAL SER GLN ASN CYS GLN ASN ARG PRO SEQRES 17 A 262 LEU ILE ASN ARG THR PHE LEU ALA MET ALA MET ALA CYS SEQRES 18 A 262 GLY LEU ASP ALA ALA ILE ALA ASP ALA CYS ASP GLU ALA SEQRES 19 A 262 LEU ILE GLU THR ALA ALA THR ALA GLU ILE LEU LEU ASN SEQRES 20 A 262 GLN THR VAL TYR CYS ASP SER PHE VAL LYS MET PHE LYS SEQRES 21 A 262 THR ARG SEQRES 1 B 262 MET LEU ILE ILE GLY GLU ARG ILE ASN GLY MET PHE GLY SEQRES 2 B 262 ASP ILE LYS ARG ALA ILE GLN GLU ARG ASP PRO ALA PRO SEQRES 3 B 262 VAL GLN GLU TRP ALA ARG ARG GLN GLU GLU GLY GLY ALA SEQRES 4 B 262 ARG ALA LEU ASP LEU ASN VAL GLY PRO ALA VAL GLN ASP SEQRES 5 B 262 LYS VAL SER ALA MET GLU TRP LEU VAL GLU VAL THR GLN SEQRES 6 B 262 GLU VAL SER ASN LEU THR LEU CYS LEU ASP SER THR ASN SEQRES 7 B 262 ILE LYS ALA ILE GLU ALA GLY LEU LYS LYS CYS LYS ASN SEQRES 8 B 262 ARG ALA MET ILE ASN SER THR ASN ALA GLU ARG GLU LYS SEQRES 9 B 262 VAL GLU LYS LEU PHE PRO LEU ALA VAL GLU HIS GLY ALA SEQRES 10 B 262 ALA LEU ILE GLY LEU THR MET ASN LYS THR GLY ILE PRO SEQRES 11 B 262 LYS ASP SER ASP THR ARG LEU ALA PHE ALA MET GLU LEU SEQRES 12 B 262 VAL ALA ALA ALA ASP GLU PHE GLY LEU PRO MET GLU ASP SEQRES 13 B 262 LEU TYR ILE ASP PRO LEU ILE LEU PRO ALA ASN VAL ALA SEQRES 14 B 262 GLN ASP HIS ALA PRO GLU VAL LEU LYS THR LEU GLN GLN SEQRES 15 B 262 ILE LYS MET LEU ALA ASP PRO ALA PRO LYS THR VAL LEU SEQRES 16 B 262 GLY LEU SER ASN VAL SER GLN ASN CYS GLN ASN ARG PRO SEQRES 17 B 262 LEU ILE ASN ARG THR PHE LEU ALA MET ALA MET ALA CYS SEQRES 18 B 262 GLY LEU ASP ALA ALA ILE ALA ASP ALA CYS ASP GLU ALA SEQRES 19 B 262 LEU ILE GLU THR ALA ALA THR ALA GLU ILE LEU LEU ASN SEQRES 20 B 262 GLN THR VAL TYR CYS ASP SER PHE VAL LYS MET PHE LYS SEQRES 21 B 262 THR ARG HET CA A3001 1 HET C2F A3000 33 HET CA B4001 1 HET C2F B4000 33 HETNAM CA CALCIUM ION HETNAM C2F 5-METHYL-5,6,7,8-TETRAHYDROFOLIC ACID FORMUL 3 CA 2(CA 2+) FORMUL 4 C2F 2(C20 H25 N7 O6) FORMUL 7 HOH *435(H2 O) HELIX 1 1 PHE A 12 ARG A 22 1 11 HELIX 2 2 ASP A 23 GLY A 38 1 16 HELIX 3 3 ASP A 52 GLU A 66 1 15 HELIX 4 4 ASN A 78 CYS A 89 1 12 HELIX 5 5 GLU A 101 GLY A 116 1 16 HELIX 6 6 ASP A 132 GLY A 151 1 20 HELIX 7 7 PRO A 153 GLU A 155 5 3 HELIX 8 8 ASP A 171 MET A 185 1 15 HELIX 9 9 SER A 198 GLN A 202 5 5 HELIX 10 10 ASN A 206 CYS A 221 1 16 HELIX 11 11 ASP A 232 LEU A 246 1 15 HELIX 12 12 SER A 254 ARG A 262 1 9 HELIX 13 13 PHE B 12 ARG B 22 1 11 HELIX 14 14 ASP B 23 GLY B 38 1 16 HELIX 15 15 ASP B 52 GLU B 66 1 15 HELIX 16 16 ASN B 78 CYS B 89 1 12 HELIX 17 17 GLU B 101 GLY B 116 1 16 HELIX 18 18 ASP B 132 GLY B 151 1 20 HELIX 19 19 PRO B 153 GLU B 155 5 3 HELIX 20 20 ASP B 171 LYS B 184 1 14 HELIX 21 21 SER B 198 GLN B 202 5 5 HELIX 22 22 ASN B 206 CYS B 221 1 16 HELIX 23 23 ASP B 232 LEU B 246 1 15 HELIX 24 24 SER B 254 THR B 261 1 8 SHEET 1 A 9 LEU A 2 GLY A 5 0 SHEET 2 A 9 ALA A 41 LEU A 44 1 O ASP A 43 N GLY A 5 SHEET 3 A 9 THR A 71 ASP A 75 1 O CYS A 73 N LEU A 42 SHEET 4 A 9 ALA A 93 THR A 98 1 O MET A 94 N LEU A 72 SHEET 5 A 9 ALA A 118 LEU A 122 1 O LEU A 122 N THR A 98 SHEET 6 A 9 LEU A 157 ASP A 160 1 O ASP A 160 N GLY A 121 SHEET 7 A 9 LYS A 192 GLY A 196 1 O LYS A 192 N ILE A 159 SHEET 8 A 9 ALA A 225 ALA A 228 1 O ILE A 227 N LEU A 195 SHEET 9 A 9 LEU A 2 GLY A 5 1 N ILE A 4 O ALA A 226 SHEET 1 B 9 LEU B 2 GLY B 5 0 SHEET 2 B 9 ALA B 41 LEU B 44 1 O ASP B 43 N GLY B 5 SHEET 3 B 9 THR B 71 ASP B 75 1 O CYS B 73 N LEU B 42 SHEET 4 B 9 ALA B 93 THR B 98 1 O ASN B 96 N LEU B 74 SHEET 5 B 9 ALA B 118 LEU B 122 1 O ILE B 120 N ILE B 95 SHEET 6 B 9 LEU B 157 ASP B 160 1 O ASP B 160 N GLY B 121 SHEET 7 B 9 LYS B 192 GLY B 196 1 O LYS B 192 N ILE B 159 SHEET 8 B 9 ALA B 225 ALA B 228 1 O ILE B 227 N LEU B 195 SHEET 9 B 9 LEU B 2 GLY B 5 1 N ILE B 4 O ALA B 226 LINK O GLY A 222 CA CA A3001 1555 1555 2.48 LINK OD1 ASP A 224 CA CA A3001 1555 1555 2.34 LINK OD2 ASP A 224 CA CA A3001 1555 1555 2.59 LINK CA CA A3001 O HOH A3032 1555 1555 2.61 LINK CA CA A3001 O HOH A3053 1555 1555 2.52 LINK CA CA A3001 O HOH A3059 1555 1555 2.57 LINK CA CA A3001 O HOH A3095 1555 1555 2.62 LINK CA CA A3001 O HOH A3210 1555 1555 2.52 LINK NZ LYS B 184 CA CA B4001 1555 1555 2.96 LINK O GLY B 222 CA CA B4001 1555 1555 2.55 LINK OD2 ASP B 224 CA CA B4001 1555 1555 2.79 LINK OD1 ASP B 224 CA CA B4001 1555 1555 2.41 LINK CA CA B4001 O HOH B4083 1555 1555 2.90 LINK CA CA B4001 O HOH B4184 1555 1555 3.16 LINK CA CA B4001 O HOH B4220 1555 1555 2.79 LINK CA CA B4001 O HOH B4221 1555 1555 2.89 CISPEP 1 ASN A 96 SER A 97 0 1.81 CISPEP 2 ASP A 188 PRO A 189 0 -0.70 CISPEP 3 ASN B 96 SER B 97 0 1.68 CISPEP 4 ASP B 188 PRO B 189 0 -0.42 SITE 1 AC1 7 GLY A 222 ASP A 224 HOH A3032 HOH A3053 SITE 2 AC1 7 HOH A3059 HOH A3095 HOH A3210 SITE 1 AC2 6 LYS B 184 GLY B 222 ASP B 224 HOH B4083 SITE 2 AC2 6 HOH B4220 HOH B4221 SITE 1 AC3 18 GLU A 6 MET A 11 PHE A 12 ASP A 75 SITE 2 AC3 18 ASN A 96 ILE A 120 ASP A 160 GLY A 196 SITE 3 AC3 18 SER A 198 ASN A 199 GLN A 202 ARG A 207 SITE 4 AC3 18 ILE A 227 HOH A3002 HOH A3003 HOH A3054 SITE 5 AC3 18 HOH A3148 HOH A3176 SITE 1 AC4 16 MET B 11 ASP B 75 ASN B 96 ILE B 120 SITE 2 AC4 16 ASP B 160 GLY B 196 SER B 198 ASN B 199 SITE 3 AC4 16 GLN B 202 ARG B 207 HOH B4002 HOH B4003 SITE 4 AC4 16 HOH B4036 HOH B4066 HOH B4120 HOH B4213 CRYST1 50.159 78.547 135.617 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 0.019937 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012731 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007374 0.00000