HEADER TRANSFERASE 22-DEC-15 5FHQ TITLE CRYSTAL STRUCTURE OF (WT) RAT CATECHOL-O-METHYLTRANSFERASE IN COMPLEX TITLE 2 WITH ADOMET AND 3,5-DINITROCATECHOL (DNC) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CATECHOL O-METHYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.1.1.6; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: NORWAY RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: COMT; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET21B KEYWDS METHYLTRANSFERASE REGIOSELECTIVITY, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR C.LEVY REVDAT 3 10-JAN-24 5FHQ 1 ATOM REVDAT 2 24-FEB-16 5FHQ 1 JRNL REVDAT 1 03-FEB-16 5FHQ 0 JRNL AUTH B.J.LAW,M.R.BENNETT,M.L.THOMPSON,C.LEVY,S.A.SHEPHERD,D.LEYS, JRNL AUTH 2 J.MICKLEFIELD JRNL TITL EFFECTS OF ACTIVE-SITE MODIFICATION AND QUATERNARY STRUCTURE JRNL TITL 2 ON THE REGIOSELECTIVITY OF CATECHOL-O-METHYLTRANSFERASE. JRNL REF ANGEW.CHEM.INT.ED.ENGL. V. 55 2683 2016 JRNL REFN ESSN 1521-3773 JRNL PMID 26797714 JRNL DOI 10.1002/ANIE.201508287 REMARK 2 REMARK 2 RESOLUTION. 1.63 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX DEV_1977 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) : 1.63 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.90 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.1 REMARK 3 NUMBER OF REFLECTIONS : 29973 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.156 REMARK 3 R VALUE (WORKING SET) : 0.155 REMARK 3 FREE R VALUE : 0.188 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.020 REMARK 3 FREE R VALUE TEST SET COUNT : 1504 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 38.9129 - 3.6244 0.94 2818 137 0.1409 0.1615 REMARK 3 2 3.6244 - 2.8771 0.96 2775 130 0.1535 0.1633 REMARK 3 3 2.8771 - 2.5135 0.98 2722 137 0.1477 0.1883 REMARK 3 4 2.5135 - 2.2837 0.97 2688 152 0.1419 0.1966 REMARK 3 5 2.2837 - 2.1200 0.97 2661 145 0.1458 0.1886 REMARK 3 6 2.1200 - 1.9950 0.96 2668 124 0.1553 0.1976 REMARK 3 7 1.9950 - 1.8951 0.95 2599 152 0.1671 0.2140 REMARK 3 8 1.8951 - 1.8126 0.92 2479 156 0.1800 0.2461 REMARK 3 9 1.8126 - 1.7428 0.90 2459 129 0.1994 0.2762 REMARK 3 10 1.7428 - 1.6827 0.86 2380 111 0.2273 0.2406 REMARK 3 11 1.6827 - 1.6301 0.83 2220 131 0.2618 0.2823 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) : 0.150 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 19.450 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 : 0.014 1760 REMARK 3 ANGLE : 1.425 2381 REMARK 3 CHIRALITY : 0.065 267 REMARK 3 PLANARITY : 0.008 303 REMARK 3 DIHEDRAL : 13.496 648 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 5FHQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 22-DEC-15. REMARK 100 THE DEPOSITION ID IS D_1000216614. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-MAR-14 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.4 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : DIAMOND REMARK 200 BEAMLINE : I04 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.978 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XIA2 REMARK 200 DATA SCALING SOFTWARE : XIA2 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 31410 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.630 REMARK 200 RESOLUTION RANGE LOW (A) : 38.902 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 200 DATA REDUNDANCY : 6.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.6900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.63 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.69 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.0 REMARK 200 DATA REDUNDANCY IN SHELL : 6.40 REMARK 200 R MERGE FOR SHELL (I) : 0.70070 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 3NWE REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.59 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.59 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 200 NL OF PROTEIN WITH AN EQUAL VOLUME REMARK 280 OF RESERVOIR SOLUTION COMPRISING (0.09 M [0.2 M SODIUM FORMATE; REMARK 280 0.2 M AMMONIUM ACETATE; 0.2 M SODIUM CITRATE TRIBASIC DIHYDRATE; REMARK 280 0.2 M SODIUM POTASSIUM TARTRATE TETRAHYDRATE; 0.2 M SODIUM REMARK 280 OXAMATE] 0.1 M TRIS / BICINE PH 8.5, 50% [40% V/V PEG 500* MME; REMARK 280 20 % W/V PEG 20000] MORPHEUS HT96 CONDITION G9), PH 7.4, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 111.70000 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 55.85000 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 55.85000 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 111.70000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 550 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11150 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -10.0 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 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 530 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 653 LIES ON A SPECIAL POSITION. 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 A 612 O HOH A 625 1.87 REMARK 500 O HOH A 611 O HOH A 643 1.91 REMARK 500 O HOH A 471 O HOH A 546 2.01 REMARK 500 O HOH A 567 O HOH A 576 2.02 REMARK 500 O HOH A 450 O HOH A 577 2.11 REMARK 500 O HOH A 571 O HOH A 605 2.17 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 O HOH A 465 O HOH A 607 4556 2.12 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 MET A 40 34.87 -86.05 REMARK 500 TYR A 68 -111.97 55.77 REMARK 500 ASP A 133 -79.24 -92.55 REMARK 500 ASP A 141 35.75 -156.15 REMARK 500 HIS A 142 -154.50 -101.40 REMARK 500 SER A 196 -149.52 -154.07 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 651 DISTANCE = 6.11 ANGSTROMS REMARK 525 HOH A 652 DISTANCE = 6.48 ANGSTROMS REMARK 525 HOH A 653 DISTANCE = 6.70 ANGSTROMS 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 MG A 303 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 141 OD1 REMARK 620 2 ASP A 169 OD2 92.6 REMARK 620 3 ASN A 170 OD1 90.7 82.4 REMARK 620 4 DNC A 302 O1 166.9 100.5 90.2 REMARK 620 5 DNC A 302 O2 88.2 167.1 84.7 78.9 REMARK 620 6 HOH A 416 O 91.7 90.8 172.9 89.0 102.0 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SAM A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue DNC A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 303 DBREF 5FHQ A 3 215 UNP P22734 COMT_RAT 46 258 SEQRES 1 A 213 ASP THR LYS GLU GLN ARG ILE LEU ARG TYR VAL GLN GLN SEQRES 2 A 213 ASN ALA LYS PRO GLY ASP PRO GLN SER VAL LEU GLU ALA SEQRES 3 A 213 ILE ASP THR TYR CYS THR GLN LYS GLU TRP ALA MET ASN SEQRES 4 A 213 VAL GLY ASP ALA LYS GLY GLN ILE MET ASP ALA VAL ILE SEQRES 5 A 213 ARG GLU TYR SER PRO SER LEU VAL LEU GLU LEU GLY ALA SEQRES 6 A 213 TYR CYS GLY TYR SER ALA VAL ARG MET ALA ARG LEU LEU SEQRES 7 A 213 GLN PRO GLY ALA ARG LEU LEU THR MET GLU MET ASN PRO SEQRES 8 A 213 ASP TYR ALA ALA ILE THR GLN GLN MET LEU ASN PHE ALA SEQRES 9 A 213 GLY LEU GLN ASP LYS VAL THR ILE LEU ASN GLY ALA SER SEQRES 10 A 213 GLN ASP LEU ILE PRO GLN LEU LYS LYS LYS TYR ASP VAL SEQRES 11 A 213 ASP THR LEU ASP MET VAL PHE LEU ASP HIS TRP LYS ASP SEQRES 12 A 213 ARG TYR LEU PRO ASP THR LEU LEU LEU GLU LYS CYS GLY SEQRES 13 A 213 LEU LEU ARG LYS GLY THR VAL LEU LEU ALA ASP ASN VAL SEQRES 14 A 213 ILE VAL PRO GLY THR PRO ASP PHE LEU ALA TYR VAL ARG SEQRES 15 A 213 GLY SER SER SER PHE GLU CYS THR HIS TYR SER SER TYR SEQRES 16 A 213 LEU GLU TYR MET LYS VAL VAL ASP GLY LEU GLU LYS ALA SEQRES 17 A 213 ILE TYR GLN GLY PRO HET SAM A 301 49 HET DNC A 302 18 HET MG A 303 1 HETNAM SAM S-ADENOSYLMETHIONINE HETNAM DNC 3,5-DINITROCATECHOL HETNAM MG MAGNESIUM ION FORMUL 2 SAM C15 H22 N6 O5 S FORMUL 3 DNC C6 H4 N2 O6 FORMUL 4 MG MG 2+ FORMUL 5 HOH *253(H2 O) HELIX 1 AA1 THR A 4 ALA A 17 1 14 HELIX 2 AA2 ASP A 21 LYS A 36 1 16 HELIX 3 AA3 GLY A 43 SER A 58 1 16 HELIX 4 AA4 GLY A 70 ARG A 78 1 9 HELIX 5 AA5 ASN A 92 GLY A 107 1 16 HELIX 6 AA6 ALA A 118 ILE A 123 1 6 HELIX 7 AA7 GLN A 125 ASP A 131 1 7 HELIX 8 AA8 TRP A 143 ASP A 145 5 3 HELIX 9 AA9 ARG A 146 CYS A 157 1 12 HELIX 10 AB1 THR A 176 SER A 186 1 11 SHEET 1 AA1 5 VAL A 112 ASN A 116 0 SHEET 2 AA1 5 ARG A 85 GLU A 90 1 N THR A 88 O LEU A 115 SHEET 3 AA1 5 LEU A 61 LEU A 65 1 N GLU A 64 O LEU A 87 SHEET 4 AA1 5 LEU A 135 LEU A 140 1 O PHE A 139 N LEU A 65 SHEET 5 AA1 5 LEU A 160 ALA A 168 1 O LEU A 167 N VAL A 138 LINK OD1 ASP A 141 MG MG A 303 1555 1555 2.05 LINK OD2 ASP A 169 MG MG A 303 1555 1555 2.05 LINK OD1 ASN A 170 MG MG A 303 1555 1555 2.12 LINK O1 DNC A 302 MG MG A 303 1555 1555 2.16 LINK O2 DNC A 302 MG MG A 303 1555 1555 2.17 LINK MG MG A 303 O HOH A 416 1555 1555 2.06 CISPEP 1 VAL A 173 PRO A 174 0 2.63 SITE 1 AC1 21 MET A 40 VAL A 42 GLY A 66 ALA A 67 SITE 2 AC1 21 TYR A 68 TYR A 71 SER A 72 GLU A 90 SITE 3 AC1 21 MET A 91 TYR A 95 GLY A 117 ALA A 118 SITE 4 AC1 21 SER A 119 GLN A 120 ASP A 141 HIS A 142 SITE 5 AC1 21 TRP A 143 DNC A 302 HOH A 453 HOH A 489 SITE 6 AC1 21 HOH A 532 SITE 1 AC2 11 TRP A 38 ASP A 141 HIS A 142 TRP A 143 SITE 2 AC2 11 LYS A 144 ASP A 169 ASN A 170 SAM A 301 SITE 3 AC2 11 MG A 303 HOH A 416 HOH A 431 SITE 1 AC3 5 ASP A 141 ASP A 169 ASN A 170 DNC A 302 SITE 2 AC3 5 HOH A 416 CRYST1 50.720 50.720 167.550 90.00 90.00 120.00 P 32 2 1 6 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 0.019716 0.011383 0.000000 0.00000 SCALE2 0.000000 0.022766 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005968 0.00000