HEADER TRANSFERASE 09-JAN-08 3BWM TITLE CRYSTAL STRUCTURE OF HUMAN CATECHOL O-METHYLTRANSFERASE TITLE 2 WITH BOUND SAM AND 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: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 GENE: COMT; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)STAR; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET22B(+) KEYWDS COMT, ROSSMANN FOLD, SAM, DNC, ALTERNATIVE INITIATION, KEYWDS 2 CATECHOLAMINE METABOLISM, CYTOPLASM, MAGNESIUM, MEMBRANE, KEYWDS 3 METHYLTRANSFERASE, NEUROTRANSMITTER DEGRADATION, KEYWDS 4 POLYMORPHISM, S-ADENOSYL-L-METHIONINE, TRANSFERASE, KEYWDS 5 TRANSMEMBRANE EXPDTA X-RAY DIFFRACTION AUTHOR K.RUTHERFORD,I.LE TRONG,R.E.STENKAMP,W.W.PARSON REVDAT 3 24-FEB-09 3BWM 1 VERSN REVDAT 2 24-JUN-08 3BWM 1 JRNL REVDAT 1 03-JUN-08 3BWM 0 JRNL AUTH K.RUTHERFORD,I.LE TRONG,R.E.STENKAMP,W.W.PARSON JRNL TITL CRYSTAL STRUCTURES OF HUMAN 108V AND 108M CATECHOL JRNL TITL 2 O-METHYLTRANSFERASE. JRNL REF J.MOL.BIOL. V. 380 120 2008 JRNL REFN ISSN 0022-2836 JRNL PMID 18486144 JRNL DOI 10.1016/J.JMB.2008.04.040 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.98 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.4.0066 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.98 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.31 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 78.3 REMARK 3 NUMBER OF REFLECTIONS : 10559 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 + TEST SET) : 0.177 REMARK 3 R VALUE (WORKING SET) : 0.175 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 549 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.98 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.04 REMARK 3 REFLECTION IN BIN (WORKING SET) : 32 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 3.35 REMARK 3 BIN R VALUE (WORKING SET) : 0.4130 REMARK 3 BIN FREE R VALUE SET COUNT : 2 REMARK 3 BIN FREE R VALUE : 0.2260 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1695 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 43 REMARK 3 SOLVENT ATOMS : 110 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 26.98 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.60000 REMARK 3 B22 (A**2) : 1.17000 REMARK 3 B33 (A**2) : 0.44000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.292 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.206 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.120 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.288 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.961 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.931 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1769 ; 0.010 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 1172 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2402 ; 1.269 ; 2.002 REMARK 3 BOND ANGLES OTHERS (DEGREES): 2890 ; 0.912 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 213 ; 5.152 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 80 ;36.825 ;25.125 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 312 ;13.331 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 9 ;15.114 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 274 ; 0.067 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1933 ; 0.005 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 321 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 65 ; 0.128 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 5 ; 0.075 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 32 ; 0.257 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 3 ; 0.151 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1071 ; 0.581 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 434 ; 0.103 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1735 ; 1.119 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 698 ; 1.626 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 667 ; 2.716 ; 4.500 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE REMARK 3 RIDING POSITIONS REMARK 4 REMARK 4 3BWM COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-JAN-08. REMARK 100 THE RCSB ID CODE IS RCSB046047. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-JUL-06 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 10.5 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 MICROMAX-007 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54178 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11145 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.970 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 76.8 REMARK 200 DATA REDUNDANCY : 5.400 REMARK 200 R MERGE (I) : 0.08000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.97 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.04 REMARK 200 COMPLETENESS FOR SHELL (%) : 3.3 REMARK 200 DATA REDUNDANCY IN SHELL : 1.10 REMARK 200 R MERGE FOR SHELL (I) : 0.44800 REMARK 200 R SYM FOR SHELL (I) : 2.30000 REMARK 200 FOR SHELL : 2.300 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: PDB ENTRY 1H1D REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.23 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: TRIS, NACL, MGCL2, DTT, CAPS, NA, K REMARK 280 PO4, LISO4, SAM, DNC, PH 10.5, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 293K 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 21.64200 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 34.02300 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.32400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 34.02300 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.64200 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.32400 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 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 36.41 -87.26 REMARK 500 TYR A 68 -108.47 53.38 REMARK 500 ASP A 133 -69.57 -97.18 REMARK 500 ASP A 141 41.62 -155.00 REMARK 500 HIS A 142 -156.49 -109.52 REMARK 500 SER A 196 -143.13 -157.92 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 504 DISTANCE = 5.93 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 300 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 85.9 85.2 REMARK 620 4 HOH A 411 O 97.3 93.4 176.5 REMARK 620 5 DNC A 302 O1 165.0 97.3 83.7 93.4 REMARK 620 6 DNC A 302 O2 85.6 161.0 75.8 105.7 81.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 303 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ARG A 184 O REMARK 620 2 SER A 186 O 107.8 REMARK 620 3 PHE A 189 O 158.7 83.9 REMARK 620 4 HOH A 425 O 93.2 158.7 75.1 REMARK 620 5 HOH A 426 O 79.9 70.6 121.2 117.7 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 300 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 303 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SAM A 301 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DNC A 302 DBREF 3BWM A 2 215 UNP P21964 COMT_HUMAN 52 265 SEQRES 1 A 214 GLY ASP THR LYS GLU GLN ARG ILE LEU ASN HIS VAL LEU SEQRES 2 A 214 GLN HIS ALA GLU PRO GLY ASN ALA GLN SER VAL LEU GLU SEQRES 3 A 214 ALA ILE ASP THR TYR CYS GLU GLN LYS GLU TRP ALA MET SEQRES 4 A 214 ASN VAL GLY ASP LYS LYS GLY LYS ILE VAL ASP ALA VAL SEQRES 5 A 214 ILE GLN GLU HIS GLN PRO SER VAL LEU LEU GLU LEU GLY SEQRES 6 A 214 ALA TYR CYS GLY TYR SER ALA VAL ARG MET ALA ARG LEU SEQRES 7 A 214 LEU SER PRO GLY ALA ARG LEU ILE THR ILE GLU ILE ASN SEQRES 8 A 214 PRO ASP CYS ALA ALA ILE THR GLN ARG MET VAL ASP PHE SEQRES 9 A 214 ALA GLY VAL LYS ASP LYS VAL THR LEU VAL VAL GLY ALA SEQRES 10 A 214 SER GLN ASP ILE ILE PRO GLN LEU LYS LYS LYS TYR ASP SEQRES 11 A 214 VAL ASP THR LEU ASP MET VAL PHE LEU ASP HIS TRP LYS SEQRES 12 A 214 ASP ARG TYR LEU PRO ASP THR LEU LEU LEU GLU GLU CYS SEQRES 13 A 214 GLY LEU LEU ARG LYS GLY THR VAL LEU LEU ALA ASP ASN SEQRES 14 A 214 VAL ILE CYS PRO GLY ALA PRO ASP PHE LEU ALA HIS VAL SEQRES 15 A 214 ARG GLY SER SER CYS PHE GLU CYS THR HIS TYR GLN SER SEQRES 16 A 214 PHE LEU GLU TYR ARG GLU VAL VAL ASP GLY LEU GLU LYS SEQRES 17 A 214 ALA ILE TYR LYS GLY PRO HET MG A 300 1 HET K A 303 1 HET SAM A 301 27 HET DNC A 302 14 HETNAM MG MAGNESIUM ION HETNAM K POTASSIUM ION HETNAM SAM S-ADENOSYLMETHIONINE HETNAM DNC 3,5-DINITROCATECHOL FORMUL 2 MG MG 2+ FORMUL 3 K K 1+ FORMUL 4 SAM C15 H22 N6 O5 S FORMUL 5 DNC C6 H4 N2 O6 FORMUL 6 HOH *110(H2 O) HELIX 1 1 THR A 4 ALA A 17 1 14 HELIX 2 2 ASN A 21 LYS A 36 1 16 HELIX 3 3 VAL A 42 GLN A 58 1 17 HELIX 4 4 GLY A 70 ARG A 78 1 9 HELIX 5 5 ASN A 92 GLY A 107 1 16 HELIX 6 6 VAL A 108 ASP A 110 5 3 HELIX 7 7 ALA A 118 ILE A 123 1 6 HELIX 8 8 GLN A 125 ASP A 131 1 7 HELIX 9 9 TRP A 143 ASP A 145 5 3 HELIX 10 10 ARG A 146 CYS A 157 1 12 HELIX 11 11 ALA A 176 SER A 186 1 11 SHEET 1 A 7 VAL A 112 VAL A 116 0 SHEET 2 A 7 ARG A 85 GLU A 90 1 N THR A 88 O VAL A 115 SHEET 3 A 7 VAL A 61 LEU A 65 1 N LEU A 62 O ILE A 87 SHEET 4 A 7 MET A 137 LEU A 140 1 O PHE A 139 N LEU A 63 SHEET 5 A 7 VAL A 165 ALA A 168 1 O LEU A 167 N LEU A 140 SHEET 6 A 7 VAL A 204 TYR A 212 -1 O ALA A 210 N LEU A 166 SHEET 7 A 7 PHE A 189 PHE A 197 -1 N SER A 196 O ASP A 205 LINK OD1 ASP A 141 MG MG A 300 1555 1555 2.13 LINK OD2 ASP A 169 MG MG A 300 1555 1555 2.35 LINK OD1 ASN A 170 MG MG A 300 1555 1555 2.24 LINK O ARG A 184 K K A 303 1555 1555 2.91 LINK O SER A 186 K K A 303 1555 1555 2.48 LINK O PHE A 189 K K A 303 1555 1555 2.62 LINK MG MG A 300 O HOH A 411 1555 1555 2.05 LINK MG MG A 300 O1 DNC A 302 1555 1555 2.13 LINK MG MG A 300 O2 DNC A 302 1555 1555 2.21 LINK K K A 303 O HOH A 425 1555 1555 2.76 LINK K K A 303 O HOH A 426 1555 1555 2.92 CISPEP 1 CYS A 173 PRO A 174 0 -0.67 SITE 1 AC1 4 ASP A 141 ASP A 169 ASN A 170 HOH A 411 SITE 1 AC2 5 ARG A 184 SER A 186 PHE A 189 HOH A 425 SITE 2 AC2 5 HOH A 426 SITE 1 AC3 19 MET A 40 ASN A 41 GLY A 66 ALA A 67 SITE 2 AC3 19 TYR A 68 TYR A 71 SER A 72 GLU A 90 SITE 3 AC3 19 ILE A 91 GLY A 117 ALA A 118 SER A 119 SITE 4 AC3 19 GLN A 120 ASP A 141 HIS A 142 TRP A 143 SITE 5 AC3 19 HOH A 402 HOH A 441 HOH A 458 SITE 1 AC4 10 TRP A 38 ASP A 141 HIS A 142 TRP A 143 SITE 2 AC4 10 LYS A 144 ASP A 169 ASN A 170 LEU A 198 SITE 3 AC4 10 GLU A 199 HOH A 411 CRYST1 43.284 66.648 68.046 90.00 90.00 90.00 P 21 21 21 4 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 0.023103 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015004 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014696 0.00000 MASTER 307 0 4 11 7 0 11 6 0 0 0 17 END