HEADER LYASE/BIOSYNTHETIC PROTEIN 12-DEC-07 3BM5 TITLE CRYSTAL STRUCTURE OF O-ACETYL-SERINE SULFHYDRYLASE FROM ENTAMOEBA TITLE 2 HISTOLYTICA IN COMPLEX WITH CYSTEINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYSTEINE SYNTHASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: O-ACETYL-SERINE SULFHYDRYLASE; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTAMOEBA HISTOLYTICA HM-1:IMSS; SOURCE 3 ORGANISM_TAXID: 294381; SOURCE 4 STRAIN: HM1.IMSS; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BLR; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET-28A KEYWDS CYSTEINE SYNTHASE, CYS-OASS COMPLEX, DOMAIN MOVEMENT, PYRIDOXAL KEYWDS 2 PHOSPHATE, LYASE, LYASE-BIOSYNTHETIC PROTEIN COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR C.KRISHNA,M.KUMAR,S.KUMAR,S.GOURINATH REVDAT 5 01-NOV-23 3BM5 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 3BM5 1 VERSN REVDAT 3 24-FEB-09 3BM5 1 VERSN REVDAT 2 12-AUG-08 3BM5 1 JRNL REVDAT 1 01-APR-08 3BM5 0 JRNL AUTH K.CHINTHALAPUDI,M.KUMAR,S.KUMAR,S.JAIN,N.ALAM,S.GOURINATH JRNL TITL CRYSTAL STRUCTURE OF NATIVE O-ACETYL-SERINE SULFHYDRYLASE JRNL TITL 2 FROM ENTAMOEBA HISTOLYTICA AND ITS COMPLEX WITH CYSTEINE: JRNL TITL 3 STRUCTURAL EVIDENCE FOR CYSTEINE BINDING AND LACK OF JRNL TITL 4 INTERACTIONS WITH SERINE ACETYL TRANSFERASE. JRNL REF PROTEINS V. 72 1222 2008 JRNL REFN ISSN 0887-3585 JRNL PMID 18350570 JRNL DOI 10.1002/PROT.22013 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.2 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 45.88 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 67507.172 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.3 REMARK 3 NUMBER OF REFLECTIONS : 26195 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) : 0.193 REMARK 3 FREE R VALUE : 0.231 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 1261 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 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) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3704 REMARK 3 BIN R VALUE (WORKING SET) : 0.2950 REMARK 3 BIN FREE R VALUE : 0.3730 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 202 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.026 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5111 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 67 REMARK 3 SOLVENT ATOMS : 264 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 31.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 42.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.10000 REMARK 3 B22 (A**2) : -0.10000 REMARK 3 B33 (A**2) : 0.20000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.27 REMARK 3 ESD FROM SIGMAA (A) : 0.31 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) : 0.34 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.40 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.860 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) : 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 : FLAT MODEL REMARK 3 KSOL : 0.40 REMARK 3 BSOL : 54.61 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 : PLP.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : PLP.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED REMARK 4 REMARK 4 3BM5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 14-DEC-07. REMARK 100 THE DEPOSITION ID IS D_1000045688. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-MAR-07 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.2 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 HF 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 : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27772 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : 3.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07900 REMARK 200 FOR THE DATA SET : 9.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.49 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.4 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.47000 REMARK 200 FOR SHELL : 2.100 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 2PQM REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.67 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2.3M AMMONIUM SULFATE, 5MM CYSTEINE, REMARK 280 100MM TRIS (PH 7.2), VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 289K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 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,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 55.88050 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 27.94025 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 83.82075 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 7910 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24380 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -107.6 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 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 GLU B 337 REMARK 465 HIS B 338 REMARK 465 HIS B 339 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LYS A 134 CG CD CE NZ REMARK 470 LYS A 322 CG CD CE NZ REMARK 470 LYS B 39 CG CD CE NZ REMARK 470 LYS B 133 CG CD CE NZ REMARK 470 LYS B 134 CG CD CE NZ REMARK 470 GLU B 141 CG CD OE1 OE2 REMARK 470 LYS B 148 CG CD CE NZ REMARK 470 LYS B 322 CG CD CE NZ 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 116 N - CA - C ANGL. DEV. = -19.8 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 ARG A 12 149.68 -170.14 REMARK 500 HIS A 30 -63.79 -139.56 REMARK 500 GLU A 83 132.27 -178.39 REMARK 500 SER A 221 51.69 -154.28 REMARK 500 TYR A 313 23.78 -141.15 REMARK 500 HIS B 30 -46.33 -136.63 REMARK 500 PRO B 77 132.34 -39.47 REMARK 500 THR B 111 -20.06 174.87 REMARK 500 MET B 112 -89.70 -70.41 REMARK 500 VAL B 114 -25.33 -34.84 REMARK 500 ILE B 128 137.42 179.06 REMARK 500 MET B 136 -39.63 -150.13 REMARK 500 ALA B 139 -77.31 -78.14 REMARK 500 ILE B 140 -84.89 -43.10 REMARK 500 LYS B 148 -78.63 -11.60 REMARK 500 PRO B 151 -152.17 -42.47 REMARK 500 LYS B 208 112.80 -166.31 REMARK 500 SER B 221 52.37 -155.71 REMARK 500 ALA B 222 64.17 -69.81 REMARK 500 LYS B 320 -81.42 -67.59 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 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 340 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 340 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 341 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 341 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 342 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP A 342 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP B 343 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYS B 402 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2PQM RELATED DB: PDB REMARK 900 NATIVE STRUCTURE DBREF 3BM5 A 2 337 UNP O15570 O15570_ENTHI 2 337 DBREF 3BM5 B 2 337 UNP O15570 O15570_ENTHI 2 337 SEQADV 3BM5 HIS A 338 UNP O15570 EXPRESSION TAG SEQADV 3BM5 HIS A 339 UNP O15570 EXPRESSION TAG SEQADV 3BM5 HIS B 338 UNP O15570 EXPRESSION TAG SEQADV 3BM5 HIS B 339 UNP O15570 EXPRESSION TAG SEQRES 1 A 338 GLU GLN ILE SER ILE SER SER PRO ARG LYS ARG ILE TYR SEQRES 2 A 338 HIS ASN ILE LEU GLU THR ILE GLY GLY THR PRO LEU VAL SEQRES 3 A 338 GLU LEU HIS GLY VAL THR GLU HIS PRO ARG ILE LYS LYS SEQRES 4 A 338 GLY THR ARG ILE LEU VAL LYS LEU GLU TYR PHE ASN PRO SEQRES 5 A 338 MET SER SER VAL LYS ASP ARG VAL GLY PHE ASN ILE VAL SEQRES 6 A 338 TYR GLN ALA ILE LYS ASP GLY ARG LEU LYS PRO GLY MET SEQRES 7 A 338 GLU ILE ILE GLU SER THR SER GLY ASN THR GLY ILE ALA SEQRES 8 A 338 LEU CYS GLN ALA GLY ALA VAL PHE GLY TYR ARG VAL ASN SEQRES 9 A 338 ILE ALA MET PRO SER THR MET SER VAL GLU ARG GLN MET SEQRES 10 A 338 ILE MET LYS ALA PHE GLY ALA GLU LEU ILE LEU THR GLU SEQRES 11 A 338 GLY LYS LYS GLY MET PRO GLY ALA ILE GLU GLU VAL ASN SEQRES 12 A 338 LYS MET ILE LYS GLU ASN PRO GLY LYS TYR PHE VAL ALA SEQRES 13 A 338 ASN GLN PHE GLY ASN PRO ASP ASN THR ALA ALA HIS HIS SEQRES 14 A 338 TYR THR ALA ASN GLU ILE TRP GLU ASP THR ASP GLY GLU SEQRES 15 A 338 VAL ASP ILE VAL VAL SER ALA VAL GLY THR SER GLY THR SEQRES 16 A 338 VAL ILE GLY VAL ALA GLU LYS LEU LYS GLU LYS LYS LYS SEQRES 17 A 338 GLY ILE LYS ILE ILE ALA VAL GLU PRO GLU GLU SER ALA SEQRES 18 A 338 VAL LEU GLU GLY LYS ALA LYS GLY PRO HIS GLY ILE GLN SEQRES 19 A 338 GLY ILE GLY ALA GLY PHE ILE PRO ASP ILE TYR LYS LYS SEQRES 20 A 338 GLU PHE VAL ASP GLU ILE ILE PRO ILE LYS THR GLN ASP SEQRES 21 A 338 ALA TRP LYS MET ALA ARG ALA VAL VAL LYS TYR ASP GLY SEQRES 22 A 338 ILE MET CYS GLY MET SER SER GLY ALA ALA ILE LEU ALA SEQRES 23 A 338 GLY LEU LYS GLU ALA GLU LYS PRO GLU ASN GLU GLY LYS SEQRES 24 A 338 THR ILE VAL ILE ILE VAL PRO SER CYS GLY GLU ARG TYR SEQRES 25 A 338 LEU SER THR ASP LEU TYR LYS ILE LYS ASP GLU GLY THR SEQRES 26 A 338 LYS ILE GLN ILE LEU ASP SER LEU LEU ASN GLU HIS HIS SEQRES 1 B 338 GLU GLN ILE SER ILE SER SER PRO ARG LYS ARG ILE TYR SEQRES 2 B 338 HIS ASN ILE LEU GLU THR ILE GLY GLY THR PRO LEU VAL SEQRES 3 B 338 GLU LEU HIS GLY VAL THR GLU HIS PRO ARG ILE LYS LYS SEQRES 4 B 338 GLY THR ARG ILE LEU VAL LYS LEU GLU TYR PHE ASN PRO SEQRES 5 B 338 MET SER SER VAL LYS ASP ARG VAL GLY PHE ASN ILE VAL SEQRES 6 B 338 TYR GLN ALA ILE LYS ASP GLY ARG LEU LYS PRO GLY MET SEQRES 7 B 338 GLU ILE ILE GLU SER THR SER GLY ASN THR GLY ILE ALA SEQRES 8 B 338 LEU CYS GLN ALA GLY ALA VAL PHE GLY TYR ARG VAL ASN SEQRES 9 B 338 ILE ALA MET PRO SER THR MET SER VAL GLU ARG GLN MET SEQRES 10 B 338 ILE MET LYS ALA PHE GLY ALA GLU LEU ILE LEU THR GLU SEQRES 11 B 338 GLY LYS LYS GLY MET PRO GLY ALA ILE GLU GLU VAL ASN SEQRES 12 B 338 LYS MET ILE LYS GLU ASN PRO GLY LYS TYR PHE VAL ALA SEQRES 13 B 338 ASN GLN PHE GLY ASN PRO ASP ASN THR ALA ALA HIS HIS SEQRES 14 B 338 TYR THR ALA ASN GLU ILE TRP GLU ASP THR ASP GLY GLU SEQRES 15 B 338 VAL ASP ILE VAL VAL SER ALA VAL GLY THR SER GLY THR SEQRES 16 B 338 VAL ILE GLY VAL ALA GLU LYS LEU LYS GLU LYS LYS LYS SEQRES 17 B 338 GLY ILE LYS ILE ILE ALA VAL GLU PRO GLU GLU SER ALA SEQRES 18 B 338 VAL LEU GLU GLY LYS ALA LYS GLY PRO HIS GLY ILE GLN SEQRES 19 B 338 GLY ILE GLY ALA GLY PHE ILE PRO ASP ILE TYR LYS LYS SEQRES 20 B 338 GLU PHE VAL ASP GLU ILE ILE PRO ILE LYS THR GLN ASP SEQRES 21 B 338 ALA TRP LYS MET ALA ARG ALA VAL VAL LYS TYR ASP GLY SEQRES 22 B 338 ILE MET CYS GLY MET SER SER GLY ALA ALA ILE LEU ALA SEQRES 23 B 338 GLY LEU LYS GLU ALA GLU LYS PRO GLU ASN GLU GLY LYS SEQRES 24 B 338 THR ILE VAL ILE ILE VAL PRO SER CYS GLY GLU ARG TYR SEQRES 25 B 338 LEU SER THR ASP LEU TYR LYS ILE LYS ASP GLU GLY THR SEQRES 26 B 338 LYS ILE GLN ILE LEU ASP SER LEU LEU ASN GLU HIS HIS HET SO4 A 1 5 HET SO4 A 340 5 HET SO4 A 341 5 HET PLP A 342 15 HET SO4 B 340 5 HET SO4 B 341 5 HET SO4 B 342 5 HET PLP B 343 15 HET CYS B 402 7 HETNAM SO4 SULFATE ION HETNAM PLP PYRIDOXAL-5'-PHOSPHATE HETNAM CYS CYSTEINE HETSYN PLP VITAMIN B6 PHOSPHATE FORMUL 3 SO4 6(O4 S 2-) FORMUL 6 PLP 2(C8 H10 N O6 P) FORMUL 11 CYS C3 H7 N O2 S FORMUL 12 HOH *264(H2 O) HELIX 1 1 ASN A 16 ILE A 21 5 6 HELIX 2 2 HIS A 30 GLU A 34 5 5 HELIX 3 3 TYR A 50 ASN A 52 5 3 HELIX 4 4 VAL A 57 GLY A 73 1 17 HELIX 5 5 GLY A 87 GLY A 101 1 15 HELIX 6 6 GLU A 115 PHE A 123 1 9 HELIX 7 7 GLU A 131 LYS A 133 5 3 HELIX 8 8 LYS A 134 ASN A 150 1 17 HELIX 9 9 ASN A 162 THR A 180 1 19 HELIX 10 10 SER A 194 LYS A 208 1 15 HELIX 11 11 ALA A 222 GLY A 226 5 5 HELIX 12 12 LYS A 247 VAL A 251 5 5 HELIX 13 13 LYS A 258 GLY A 274 1 17 HELIX 14 14 GLY A 278 LYS A 294 1 17 HELIX 15 15 PRO A 295 GLU A 298 5 4 HELIX 16 16 CYS A 309 LEU A 314 5 6 HELIX 17 17 THR A 326 LEU A 335 1 10 HELIX 18 18 ASN B 16 ILE B 21 5 6 HELIX 19 19 HIS B 30 GLU B 34 5 5 HELIX 20 20 TYR B 50 ASN B 52 5 3 HELIX 21 21 VAL B 57 GLY B 73 1 17 HELIX 22 22 GLY B 87 GLY B 101 1 15 HELIX 23 23 SER B 113 LYS B 121 1 9 HELIX 24 24 ALA B 139 ASN B 150 1 12 HELIX 25 25 ASN B 162 THR B 180 1 19 HELIX 26 26 SER B 194 GLU B 206 1 13 HELIX 27 27 GLU B 220 ALA B 222 5 3 HELIX 28 28 LYS B 247 VAL B 251 5 5 HELIX 29 29 LYS B 258 GLY B 274 1 17 HELIX 30 30 GLY B 278 GLU B 293 1 16 HELIX 31 31 LYS B 294 GLU B 298 5 5 HELIX 32 32 CYS B 309 LEU B 314 5 6 HELIX 33 33 THR B 326 ASN B 336 1 11 SHEET 1 A 7 ILE A 13 TYR A 14 0 SHEET 2 A 7 LEU B 26 GLU B 28 1 O GLU B 28 N TYR A 14 SHEET 3 A 7 ARG B 43 LEU B 48 -1 O VAL B 46 N VAL B 27 SHEET 4 A 7 THR B 301 VAL B 306 1 O ILE B 302 N ARG B 43 SHEET 5 A 7 VAL B 184 ALA B 190 1 N ILE B 186 O VAL B 303 SHEET 6 A 7 LYS B 212 PRO B 218 1 O ILE B 214 N VAL B 187 SHEET 7 A 7 GLU B 253 ILE B 257 1 O ILE B 255 N ALA B 215 SHEET 1 B 7 GLU A 253 ILE A 257 0 SHEET 2 B 7 LYS A 212 PRO A 218 1 N ALA A 215 O ILE A 255 SHEET 3 B 7 ILE A 186 ALA A 190 1 N VAL A 187 O ILE A 214 SHEET 4 B 7 THR A 301 VAL A 306 1 O VAL A 303 N ILE A 186 SHEET 5 B 7 ARG A 43 LEU A 48 1 N ARG A 43 O ILE A 302 SHEET 6 B 7 LEU A 26 GLU A 28 -1 N VAL A 27 O VAL A 46 SHEET 7 B 7 ILE B 13 TYR B 14 1 O TYR B 14 N GLU A 28 SHEET 1 C 4 GLU A 126 THR A 130 0 SHEET 2 C 4 VAL A 104 PRO A 109 1 N ILE A 106 O ILE A 128 SHEET 3 C 4 GLU A 80 SER A 84 1 N GLU A 83 O ALA A 107 SHEET 4 C 4 TYR A 154 VAL A 156 1 O PHE A 155 N ILE A 82 SHEET 1 D 4 LEU B 129 THR B 130 0 SHEET 2 D 4 VAL B 104 PRO B 109 1 N MET B 108 O THR B 130 SHEET 3 D 4 GLU B 80 SER B 84 1 N GLU B 83 O ASN B 105 SHEET 4 D 4 TYR B 154 VAL B 156 1 O PHE B 155 N GLU B 80 LINK NZ LYS A 58 C4A PLP A 342 1555 1555 1.14 LINK NZ LYS B 58 C4A PLP B 343 1555 1555 1.76 SITE 1 AC1 5 THR A 85 SER A 86 GLY A 87 GLN A 159 SITE 2 AC1 5 HOH A 370 SITE 1 AC2 5 ARG A 12 HOH A 447 SER B 7 SER B 8 SITE 2 AC2 5 HOH B 420 SITE 1 AC3 4 HIS A 170 LYS A 203 HOH A 363 HOH A 427 SITE 1 AC4 3 THR A 326 LYS A 327 HOH A 474 SITE 1 AC5 4 ASN B 174 LYS B 203 LYS B 207 HOH B 485 SITE 1 AC6 6 LYS A 205 LYS A 209 GLY A 210 ILE A 211 SITE 2 AC6 6 HOH A 433 ARG B 37 SITE 1 AC7 16 LYS A 58 ASN A 88 ALA A 190 GLY A 192 SITE 2 AC7 16 THR A 193 SER A 194 GLY A 195 THR A 196 SITE 3 AC7 16 GLY A 236 SER A 280 PRO A 307 SER A 308 SITE 4 AC7 16 TYR A 313 HOH A 373 HOH A 387 HOH A 405 SITE 1 AC8 19 LYS B 58 ASN B 88 ALA B 190 GLY B 192 SITE 2 AC8 19 THR B 193 SER B 194 GLY B 195 THR B 196 SITE 3 AC8 19 GLN B 235 GLY B 236 SER B 280 PRO B 307 SITE 4 AC8 19 SER B 308 TYR B 313 CYS B 402 HOH B 403 SITE 5 AC8 19 HOH B 406 HOH B 416 HOH B 451 SITE 1 AC9 8 LYS B 58 THR B 85 SER B 86 ASN B 88 SITE 2 AC9 8 THR B 89 GLN B 159 GLY B 236 HOH B 451 CRYST1 80.360 80.360 111.761 90.00 90.00 90.00 P 41 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 0.012444 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012444 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008948 0.00000