HEADER TRANSFERASE 18-OCT-06 2ISQ TITLE CRYSTAL STRUCTURE OF O-ACETYLSERINE SULFHYDRYLASE FROM ARABIDOPSIS TITLE 2 THALIANA IN COMPLEX WITH C-TERMINAL PEPTIDE FROM ARABIDOPSIS SERINE TITLE 3 ACETYLTRANSFERASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYSTEINE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: O-ACETYLSERINE SULFHYDRYLASE, O-ACETYLSERINE THIOL, -LYASE, COMPND 5 CSASE A, CS-A, OAS-TL A, CYS-3A, AT.OAS.5-8; COMPND 6 EC: 2.5.1.47; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: SERINE ACETYLTRANSFERASE 1; COMPND 10 CHAIN: B; COMPND 11 FRAGMENT: SAT PEPTIDE; COMPND 12 SYNONYM: ATSAT-1, SAT-P, ATSERAT2;1; COMPND 13 EC: 2.3.1.30; COMPND 14 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA; SOURCE 3 ORGANISM_COMMON: THALE CRESS; SOURCE 4 ORGANISM_TAXID: 3702; SOURCE 5 GENE: OASA1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21 DE3; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET28A-ATOASS; SOURCE 11 MOL_ID: 2; SOURCE 12 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA; SOURCE 13 ORGANISM_COMMON: THALE CRESS; SOURCE 14 ORGANISM_TAXID: 3702; SOURCE 15 GENE: SAT1; SOURCE 16 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 17 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ALPHA BETA STRUCTRUAL DOMAIN, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.A.FRANCOIS,S.KUMARAN,J.M.JEZ REVDAT 4 30-AUG-23 2ISQ 1 REMARK LINK REVDAT 3 13-JUL-11 2ISQ 1 VERSN REVDAT 2 24-FEB-09 2ISQ 1 VERSN REVDAT 1 13-FEB-07 2ISQ 0 JRNL AUTH J.A.FRANCOIS,S.KUMARAN,J.M.JEZ JRNL TITL STRUCTURAL BASIS FOR INTERACTION OF O-ACETYLSERINE JRNL TITL 2 SULFHYDRYLASE AND SERINE ACETYLTRANSFERASE IN THE JRNL TITL 3 ARABIDOPSIS CYSTEINE SYNTHASE COMPLEX. JRNL REF PLANT CELL V. 18 3647 2006 JRNL REFN ISSN 1040-4651 JRNL PMID 17194764 JRNL DOI 10.1105/TPC.106.047316 REMARK 2 REMARK 2 RESOLUTION. 2.80 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) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 100.00 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) (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 19828 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) : 0.188 REMARK 3 FREE R VALUE : 0.248 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 991 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 2431 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 REMARK 3 SOLVENT ATOMS : 112 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 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) : 1.280 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 2ISQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-OCT-06. REMARK 100 THE DEPOSITION ID IS D_1000039968. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUN-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 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 : ENRAF-NONIUS FR591 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRUKER SMART 6000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SAINT REMARK 200 DATA SCALING SOFTWARE : PROTEUM PLUS PLUS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19828 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 10.80 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.14500 REMARK 200 FOR THE DATA SET : 7.3600 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 10.00 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.52600 REMARK 200 FOR SHELL : 2.010 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB 1Z7W REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 68.76 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.94 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.5 M AMMONIUM SULFATE; 0.1 M PIPES, REMARK 280 PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -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 -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 49.65750 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 52.43000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 52.43000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 74.48625 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 52.43000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 52.43000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 24.82875 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 52.43000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 52.43000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 74.48625 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 52.43000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 52.43000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 24.82875 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 49.65750 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: PHYSIOLOGIC DIMER IS GENERATED BY CRYSTALLOGRAPHIC 2-FOLD REMARK 300 SYMMETRY. 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 9590 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 22730 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -77.0 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 350 BIOMT1 2 0.000000 -1.000000 0.000000 104.86000 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 104.86000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -49.65750 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 PRO A 296 C - N - CA ANGL. DEV. = 10.3 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 ASN A 22 -71.48 -98.08 REMARK 500 SER A 43 -7.68 69.85 REMARK 500 GLU A 67 -53.70 -123.79 REMARK 500 THR A 74 123.28 -172.99 REMARK 500 MET A 101 116.32 -34.91 REMARK 500 SER A 102 154.20 -40.12 REMARK 500 GLN A 146 71.66 61.61 REMARK 500 SER A 210 44.41 -150.51 REMARK 500 THR A 305 173.25 -59.99 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 SO4 A 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP A 400 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1Z7W RELATED DB: PDB REMARK 900 ATOASS APOENZYME REMARK 900 RELATED ID: 1Z7Y RELATED DB: PDB REMARK 900 ATOASS K46A MUTANT DBREF 2ISQ A 3 322 UNP P47998 CYSK1_ARATH 3 322 DBREF 2ISQ B 900 907 UNP Q42588 SAT1_ARATH 307 314 SEQRES 1 A 320 SER ARG ILE ALA LYS ASP VAL THR GLU LEU ILE GLY ASN SEQRES 2 A 320 THR PRO LEU VAL TYR LEU ASN ASN VAL ALA GLU GLY CYS SEQRES 3 A 320 VAL GLY ARG VAL ALA ALA LYS LEU GLU MET MET GLU PRO SEQRES 4 A 320 CYS SER SER VAL LYS ASP ARG ILE GLY PHE SER MET ILE SEQRES 5 A 320 SER ASP ALA GLU LYS LYS GLY LEU ILE LYS PRO GLY GLU SEQRES 6 A 320 SER VAL LEU ILE GLU PRO THR SER GLY ASN THR GLY VAL SEQRES 7 A 320 GLY LEU ALA PHE THR ALA ALA ALA LYS GLY TYR LYS LEU SEQRES 8 A 320 ILE ILE THR MET PRO ALA SER MET SER THR GLU ARG ARG SEQRES 9 A 320 ILE ILE LEU LEU ALA PHE GLY VAL GLU LEU VAL LEU THR SEQRES 10 A 320 ASP PRO ALA LYS GLY MET LYS GLY ALA ILE ALA LYS ALA SEQRES 11 A 320 GLU GLU ILE LEU ALA LYS THR PRO ASN GLY TYR MET LEU SEQRES 12 A 320 GLN GLN PHE GLU ASN PRO ALA ASN PRO LYS ILE HIS TYR SEQRES 13 A 320 GLU THR THR GLY PRO GLU ILE TRP LYS GLY THR GLY GLY SEQRES 14 A 320 LYS ILE ASP GLY PHE VAL SER GLY ILE GLY THR GLY GLY SEQRES 15 A 320 THR ILE THR GLY ALA GLY LYS TYR LEU LYS GLU GLN ASN SEQRES 16 A 320 ALA ASN VAL LYS LEU TYR GLY VAL GLU PRO VAL GLU SER SEQRES 17 A 320 ALA ILE LEU SER GLY GLY LYS PRO GLY PRO HIS LYS ILE SEQRES 18 A 320 GLN GLY ILE GLY ALA GLY PHE ILE PRO SER VAL LEU ASN SEQRES 19 A 320 VAL ASP LEU ILE ASP GLU VAL VAL GLN VAL SER SER ASP SEQRES 20 A 320 GLU SER ILE ASP MET ALA ARG GLN LEU ALA LEU LYS GLU SEQRES 21 A 320 GLY LEU LEU VAL GLY ILE SER SER GLY ALA ALA ALA ALA SEQRES 22 A 320 ALA ALA ILE LYS LEU ALA GLN ARG PRO GLU ASN ALA GLY SEQRES 23 A 320 LYS LEU PHE VAL ALA ILE PHE PRO SER PHE GLY GLU ARG SEQRES 24 A 320 TYR LEU SER THR VAL LEU PHE ASP ALA THR ARG LYS GLU SEQRES 25 A 320 ALA GLU ALA MET THR PHE GLU ALA SEQRES 1 B 8 THR GLU TRP SER ASP TYR VAL ILE HET SO4 A 500 5 HET PLP A 400 15 HETNAM SO4 SULFATE ION HETNAM PLP PYRIDOXAL-5'-PHOSPHATE HETSYN PLP VITAMIN B6 PHOSPHATE FORMUL 3 SO4 O4 S 2- FORMUL 4 PLP C8 H10 N O6 P FORMUL 5 HOH *112(H2 O) HELIX 1 1 ASP A 8 ILE A 13 5 6 HELIX 2 2 MET A 38 GLU A 40 5 3 HELIX 3 3 VAL A 45 LYS A 60 1 16 HELIX 4 4 GLY A 76 GLY A 90 1 15 HELIX 5 5 THR A 103 PHE A 112 1 10 HELIX 6 6 ASP A 120 ALA A 122 5 3 HELIX 7 7 LYS A 123 THR A 139 1 17 HELIX 8 8 PRO A 151 THR A 160 1 10 HELIX 9 9 THR A 160 THR A 169 1 10 HELIX 10 10 GLY A 183 ASN A 197 1 15 HELIX 11 11 GLU A 209 GLY A 215 5 7 HELIX 12 12 ASN A 236 ILE A 240 5 5 HELIX 13 13 SER A 247 GLY A 263 1 17 HELIX 14 14 GLY A 267 ARG A 283 1 17 HELIX 15 15 PRO A 284 ALA A 287 5 4 HELIX 16 16 PHE A 298 LEU A 303 5 6 HELIX 17 17 THR A 305 LEU A 307 5 3 HELIX 18 18 PHE A 308 MET A 318 1 11 SHEET 1 A 6 LEU A 18 TYR A 20 0 SHEET 2 A 6 ARG A 31 LEU A 36 -1 O ALA A 34 N VAL A 19 SHEET 3 A 6 LEU A 290 PHE A 295 1 O PHE A 291 N ARG A 31 SHEET 4 A 6 ILE A 173 GLY A 179 1 N ASP A 174 O LEU A 290 SHEET 5 A 6 LYS A 201 PRO A 207 1 O TYR A 203 N SER A 178 SHEET 6 A 6 GLU A 242 VAL A 246 1 O VAL A 244 N GLY A 204 SHEET 1 B 4 GLU A 115 THR A 119 0 SHEET 2 B 4 LYS A 92 PRO A 98 1 N LEU A 93 O GLU A 115 SHEET 3 B 4 VAL A 69 PRO A 73 1 N LEU A 70 O ILE A 94 SHEET 4 B 4 GLY A 142 MET A 144 1 O TYR A 143 N ILE A 71 LINK NZ LYS A 46 C4A PLP A 400 1555 1555 1.24 SITE 1 AC1 2 THR A 305 VAL A 306 SITE 1 AC2 16 LYS A 46 ASN A 77 GLY A 179 ILE A 180 SITE 2 AC2 16 GLY A 181 THR A 182 GLY A 183 THR A 185 SITE 3 AC2 16 GLY A 225 SER A 269 PRO A 296 SER A 297 SITE 4 AC2 16 TYR A 302 HOH A 503 HOH A 565 HOH B 6 CRYST1 104.860 104.860 99.315 90.00 90.00 90.00 P 43 21 2 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 0.009537 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009537 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010069 0.00000