HEADER TRANSFERASE 29-AUG-00 1FP2 TITLE CRYSTAL STRUCTURE ANALYSIS OF ISOFLAVONE O-METHYLTRANSFERASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: ISOFLAVONE O-METHYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MEDICAGO SATIVA; SOURCE 3 ORGANISM_TAXID: 3879; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_VECTOR: PET15B KEYWDS PROTEIN-PRODUCT COMPLEX, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR C.ZUBIETA,R.A.DIXON,J.P.NOEL REVDAT 5 07-FEB-24 1FP2 1 REMARK REVDAT 4 13-JUL-11 1FP2 1 VERSN REVDAT 3 24-FEB-09 1FP2 1 VERSN REVDAT 2 01-APR-03 1FP2 1 JRNL REVDAT 1 07-MAR-01 1FP2 0 JRNL AUTH C.ZUBIETA,X.Z.HE,R.A.DIXON,J.P.NOEL JRNL TITL STRUCTURES OF TWO NATURAL PRODUCT METHYLTRANSFERASES REVEAL JRNL TITL 2 THE BASIS FOR SUBSTRATE SPECIFICITY IN PLANT JRNL TITL 3 O-METHYLTRANSFERASES. JRNL REF NAT.STRUCT.BIOL. V. 8 271 2001 JRNL REFN ISSN 1072-8368 JRNL PMID 11224575 JRNL DOI 10.1038/85029 REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 69.71 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1360469.450 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.4 REMARK 3 NUMBER OF REFLECTIONS : 82735 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) : 0.217 REMARK 3 FREE R VALUE : 0.233 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 4162 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) : 1.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.49 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 83.70 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 11567 REMARK 3 BIN R VALUE (WORKING SET) : 0.3700 REMARK 3 BIN FREE R VALUE : 0.4130 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 583 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 : 2735 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 46 REMARK 3 SOLVENT ATOMS : 247 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.08000 REMARK 3 B22 (A**2) : 3.80000 REMARK 3 B33 (A**2) : -1.72000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.45000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.19 REMARK 3 ESD FROM SIGMAA (A) : 0.30 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) : 0.21 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.35 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.022 REMARK 3 BOND ANGLES (DEGREES) : 1.900 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.400 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) : 1.320 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.930 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.260 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.120 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.37 REMARK 3 BSOL : 45.34 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 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : SAH_PARA.TXT REMARK 3 PARAMETER FILE 4 : ISOFORM_PARA.TXT REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : SAH_TOPO.TXT REMARK 3 TOPOLOGY FILE 4 : ISOFORM_TOPO.TXT REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1FP2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-OCT-00. REMARK 100 THE DEPOSITION ID IS D_1000011785. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-FEB-00 REMARK 200 TEMPERATURE (KELVIN) : 105 REMARK 200 PH : 8.25 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.920 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 82735 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 99.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.500 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.4 REMARK 200 DATA REDUNDANCY : 1.800 REMARK 200 R MERGE (I) : 0.04000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 19.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.42 REMARK 200 COMPLETENESS FOR SHELL (%) : 65.5 REMARK 200 DATA REDUNDANCY IN SHELL : 1.90 REMARK 200 R MERGE FOR SHELL (I) : 0.65000 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: NULL REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.61 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.83 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, LITHIUM SULFATE, PH 8.25, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 72.77800 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 25.26900 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 72.77800 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 25.26900 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: THE BIOLOGICAL ASSEMBLY IS A DIMER CONSTRUCTED FROM CHAIN A REMARK 300 BY A TWO-FOLD ROTATION. 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 9750 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 29030 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -82.0 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 -18.32983 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 61.13526 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A 1 REMARK 465 ALA A 2 REMARK 465 SER A 3 REMARK 465 SER A 4 REMARK 465 ILE A 5 REMARK 465 ASN A 6 REMARK 465 GLY A 7 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 319 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES 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 LYS A 9 -154.94 -128.62 REMARK 500 PRO A 10 -143.69 -92.76 REMARK 500 SER A 11 19.29 -69.61 REMARK 500 LYS A 89 -128.27 -146.18 REMARK 500 SER A 230 140.99 -179.49 REMARK 500 ASN A 231 100.20 24.18 REMARK 500 ASN A 232 -16.64 73.16 REMARK 500 ILE A 255 -61.10 -102.62 REMARK 500 ASP A 292 89.34 -152.55 REMARK 500 MET A 311 0.38 -67.72 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR A 254 0.06 SIDE CHAIN 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 SAH A 1699 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HMO A 2000 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FP1 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE ANALYSIS OF CHALCONE O-METHYLTRANSFERASE REMARK 900 RELATED ID: 1FPX RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE ANALYSIS OF SELENOMETHIONINE SUBSTITUTED REMARK 900 ISOFLAVONE O-METHYLTRANSFERASE REMARK 900 RELATED ID: 1FPQ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE ANALYSIS OF SELENOMETHIONINE SUBSTITUTED CHALCONE REMARK 900 O-METHYLTRANSFERASE DBREF 1FP2 A 1 352 UNP O24529 7OMT8_MEDSA 1 352 SEQRES 1 A 352 MET ALA SER SER ILE ASN GLY ARG LYS PRO SER GLU ILE SEQRES 2 A 352 PHE LYS ALA GLN ALA LEU LEU TYR LYS HIS ILE TYR ALA SEQRES 3 A 352 PHE ILE ASP SER MET SER LEU LYS TRP ALA VAL GLU MET SEQRES 4 A 352 ASN ILE PRO ASN ILE ILE GLN ASN HIS GLY LYS PRO ILE SEQRES 5 A 352 SER LEU SER ASN LEU VAL SER ILE LEU GLN VAL PRO SER SEQRES 6 A 352 SER LYS ILE GLY ASN VAL ARG ARG LEU MET ARG TYR LEU SEQRES 7 A 352 ALA HIS ASN GLY PHE PHE GLU ILE ILE THR LYS GLU GLU SEQRES 8 A 352 GLU SER TYR ALA LEU THR VAL ALA SER GLU LEU LEU VAL SEQRES 9 A 352 ARG GLY SER ASP LEU CYS LEU ALA PRO MET VAL GLU CYS SEQRES 10 A 352 VAL LEU ASP PRO THR LEU SER GLY SER TYR HIS GLU LEU SEQRES 11 A 352 LYS LYS TRP ILE TYR GLU GLU ASP LEU THR LEU PHE GLY SEQRES 12 A 352 VAL THR LEU GLY SER GLY PHE TRP ASP PHE LEU ASP LYS SEQRES 13 A 352 ASN PRO GLU TYR ASN THR SER PHE ASN ASP ALA MET ALA SEQRES 14 A 352 SER ASP SER LYS LEU ILE ASN LEU ALA LEU ARG ASP CYS SEQRES 15 A 352 ASP PHE VAL PHE ASP GLY LEU GLU SER ILE VAL ASP VAL SEQRES 16 A 352 GLY GLY GLY THR GLY THR THR ALA LYS ILE ILE CYS GLU SEQRES 17 A 352 THR PHE PRO LYS LEU LYS CYS ILE VAL PHE ASP ARG PRO SEQRES 18 A 352 GLN VAL VAL GLU ASN LEU SER GLY SER ASN ASN LEU THR SEQRES 19 A 352 TYR VAL GLY GLY ASP MET PHE THR SER ILE PRO ASN ALA SEQRES 20 A 352 ASP ALA VAL LEU LEU LYS TYR ILE LEU HIS ASN TRP THR SEQRES 21 A 352 ASP LYS ASP CYS LEU ARG ILE LEU LYS LYS CYS LYS GLU SEQRES 22 A 352 ALA VAL THR ASN ASP GLY LYS ARG GLY LYS VAL THR ILE SEQRES 23 A 352 ILE ASP MET VAL ILE ASP LYS LYS LYS ASP GLU ASN GLN SEQRES 24 A 352 VAL THR GLN ILE LYS LEU LEU MET ASP VAL ASN MET ALA SEQRES 25 A 352 CYS LEU ASN GLY LYS GLU ARG ASN GLU GLU GLU TRP LYS SEQRES 26 A 352 LYS LEU PHE ILE GLU ALA GLY PHE GLN HIS TYR LYS ILE SEQRES 27 A 352 SER PRO LEU THR GLY PHE LEU SER LEU ILE GLU ILE TYR SEQRES 28 A 352 PRO HET SAH A1699 26 HET HMO A2000 20 HETNAM SAH S-ADENOSYL-L-HOMOCYSTEINE HETNAM HMO 4'-HYDROXY-7-METHOXYISOFLAVONE HETSYN HMO ISOFORMONONETIN FORMUL 2 SAH C14 H20 N6 O5 S FORMUL 3 HMO C16 H12 O4 FORMUL 4 HOH *247(H2 O) HELIX 1 1 SER A 11 TYR A 25 1 15 HELIX 2 2 ALA A 26 MET A 39 1 14 HELIX 3 3 ASN A 40 GLY A 49 1 10 HELIX 4 4 LEU A 54 GLN A 62 1 9 HELIX 5 5 PRO A 64 SER A 66 5 3 HELIX 6 6 LYS A 67 ASN A 81 1 15 HELIX 7 7 THR A 97 LEU A 102 1 6 HELIX 8 8 LEU A 111 LEU A 119 1 9 HELIX 9 9 ASP A 120 SER A 126 1 7 HELIX 10 10 GLU A 129 TYR A 135 1 7 HELIX 11 11 THR A 140 GLY A 147 1 8 HELIX 12 12 GLY A 149 ASN A 157 1 9 HELIX 13 13 ASN A 157 ASP A 171 1 15 HELIX 14 14 ASP A 171 ASP A 181 1 11 HELIX 15 15 CYS A 182 ASP A 187 1 6 HELIX 16 16 GLY A 200 PHE A 210 1 11 HELIX 17 17 ARG A 220 GLU A 225 1 6 HELIX 18 18 ILE A 255 TRP A 259 5 5 HELIX 19 19 THR A 260 THR A 276 1 17 HELIX 20 20 ASN A 277 LYS A 280 5 4 HELIX 21 21 GLU A 297 MET A 311 1 15 HELIX 22 22 ALA A 312 ASN A 315 5 4 HELIX 23 23 GLU A 321 ALA A 331 1 11 SHEET 1 A 3 ILE A 52 SER A 53 0 SHEET 2 A 3 GLU A 92 LEU A 96 -1 N TYR A 94 O ILE A 52 SHEET 3 A 3 PHE A 84 THR A 88 -1 O GLU A 85 N ALA A 95 SHEET 1 B 7 LEU A 233 GLY A 237 0 SHEET 2 B 7 LYS A 214 ASP A 219 1 O CYS A 215 N THR A 234 SHEET 3 B 7 SER A 191 VAL A 195 1 O ILE A 192 N ILE A 216 SHEET 4 B 7 ALA A 249 LYS A 253 1 O ALA A 249 N VAL A 193 SHEET 5 B 7 LYS A 283 ASP A 288 1 O LYS A 283 N VAL A 250 SHEET 6 B 7 LEU A 345 TYR A 351 -1 N SER A 346 O ASP A 288 SHEET 7 B 7 HIS A 335 THR A 342 -1 O HIS A 335 N TYR A 351 SHEET 1 C 2 VAL A 290 ILE A 291 0 SHEET 2 C 2 ARG A 319 ASN A 320 1 O ARG A 319 N ILE A 291 SITE 1 AC1 17 GLY A 196 ASP A 219 ARG A 220 ASP A 239 SITE 2 AC1 17 MET A 240 PHE A 241 LYS A 253 ILE A 255 SITE 3 AC1 17 HMO A2000 HOH A2001 HOH A2002 HOH A2014 SITE 4 AC1 17 HOH A2026 HOH A2031 HOH A2039 HOH A2047 SITE 5 AC1 17 HOH A2054 SITE 1 AC2 11 TYR A 25 VAL A 118 LEU A 123 SER A 124 SITE 2 AC2 11 TYR A 127 PHE A 164 TYR A 254 HIS A 257 SITE 3 AC2 11 ASN A 258 ASN A 310 SAH A1699 CRYST1 145.556 50.538 63.824 90.00 106.69 90.00 C 1 2 1 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 0.006870 0.000000 0.002060 0.00000 SCALE2 0.000000 0.019787 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016357 0.00000