HEADER TRANSFERASE 12-OCT-18 6MRI TITLE E. COLI CYSTEINE DESULFURASE SUFS E250A WITH A CYSTEINE PERSULFIDE TITLE 2 INTERMEDIATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYSTEINE DESULFURASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: SELENOCYSTEINE BETA-LYASE, SCL, SELENOCYSTEINE LYASE, COMPND 5 SELENOCYSTEINE REDUCTASE; COMPND 6 EC: 2.8.1.7,4.4.1.16; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI (STRAIN K12); SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K12; SOURCE 5 GENE: SUFS, CSDB, YNHB, B1680, JW1670; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET21 KEYWDS CYSTEINE DESULFURASE, SUFS, PERSULFIDE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.A.DUNKLE,P.A.FRANTOM REVDAT 5 15-NOV-23 6MRI 1 REMARK REVDAT 4 11-OCT-23 6MRI 1 LINK REVDAT 3 01-JAN-20 6MRI 1 REMARK REVDAT 2 27-FEB-19 6MRI 1 JRNL REVDAT 1 09-JAN-19 6MRI 0 JRNL AUTH J.A.DUNKLE,M.R.BRUNO,F.W.OUTTEN,P.A.FRANTOM JRNL TITL STRUCTURAL EVIDENCE FOR DIMER-INTERFACE-DRIVEN REGULATION OF JRNL TITL 2 THE TYPE II CYSTEINE DESULFURASE, SUFS. JRNL REF BIOCHEMISTRY V. 58 687 2019 JRNL REFN ISSN 1520-4995 JRNL PMID 30571100 JRNL DOI 10.1021/ACS.BIOCHEM.8B01122 REMARK 2 REMARK 2 RESOLUTION. 2.62 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.14_3211 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) : 2.62 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 60.68 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.2 REMARK 3 NUMBER OF REFLECTIONS : 31343 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.187 REMARK 3 R VALUE (WORKING SET) : 0.184 REMARK 3 FREE R VALUE : 0.220 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 6.370 REMARK 3 FREE R VALUE TEST SET COUNT : 1998 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 60.6909 - 6.3125 0.87 2145 146 0.1724 0.1950 REMARK 3 2 6.3125 - 5.0112 0.90 2089 142 0.1719 0.2051 REMARK 3 3 5.0112 - 4.3779 0.91 2113 144 0.1471 0.1756 REMARK 3 4 4.3779 - 3.9777 0.92 2082 142 0.1494 0.1679 REMARK 3 5 3.9777 - 3.6927 0.92 2085 142 0.1611 0.2194 REMARK 3 6 3.6927 - 3.4750 0.92 2087 142 0.1816 0.1951 REMARK 3 7 3.4750 - 3.3010 0.92 2066 140 0.1978 0.2420 REMARK 3 8 3.3010 - 3.1573 0.93 2104 143 0.2150 0.2882 REMARK 3 9 3.1573 - 3.0357 0.93 2108 143 0.2356 0.2859 REMARK 3 10 3.0357 - 2.9310 0.93 2084 143 0.2254 0.2646 REMARK 3 11 2.9310 - 2.8393 0.94 2101 142 0.2390 0.2970 REMARK 3 12 2.8393 - 2.7582 0.94 2112 145 0.2401 0.2877 REMARK 3 13 2.7582 - 2.6856 0.94 2085 141 0.2545 0.2866 REMARK 3 14 2.6856 - 2.6200 0.94 2084 143 0.2733 0.3302 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) : 0.300 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.040 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 57.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 54.20 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 : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL 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 6MRI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-OCT-18. REMARK 100 THE DEPOSITION ID IS D_1000237445. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-MAR-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 31408 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.620 REMARK 200 RESOLUTION RANGE LOW (A) : 60.675 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.4 REMARK 200 DATA REDUNDANCY : 7.044 REMARK 200 R MERGE (I) : 0.15700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 6.7900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.62 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.69 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.9 REMARK 200 DATA REDUNDANCY IN SHELL : 7.40 REMARK 200 R MERGE FOR SHELL (I) : 0.69700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.090 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: PDB ENTRY 1JF9 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 79.41 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 5.97 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 4-4.5 M SODIUM CHLORIDE, 100 MM MES, REMARK 280 PH 6.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K 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 69.27500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 62.86500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 62.86500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 103.91250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 62.86500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 62.86500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 34.63750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 62.86500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 62.86500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 103.91250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 62.86500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 62.86500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 34.63750 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 69.27500 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: 7820 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 27280 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -39.0 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 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 665 LIES ON A SPECIAL POSITION. 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 -13 REMARK 465 ALA A -12 REMARK 465 SER A -11 REMARK 465 MET A -10 REMARK 465 THR A -9 REMARK 465 GLY A -8 REMARK 465 GLY A -7 REMARK 465 GLN A -6 REMARK 465 GLN A -5 REMARK 465 MET A -4 REMARK 465 GLY A -3 REMARK 465 ARG A -2 REMARK 465 GLY A -1 REMARK 465 SER A 0 REMARK 465 MET A 1 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 HIS A 55 68.36 -55.83 REMARK 500 ARG A 56 76.96 8.00 REMARK 500 ILE A 127 -57.63 -124.76 REMARK 500 LEU A 227 36.94 -96.47 REMARK 500 TRP A 249 -85.08 -160.83 REMARK 500 SER A 254 -11.67 99.53 REMARK 500 ALA A 257 -78.93 -84.34 REMARK 500 LYS A 269 -176.56 -62.90 REMARK 500 ALA A 270 -131.82 -30.38 REMARK 500 ASN A 330 35.78 -94.96 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 ALA A 270 PRO A 271 -148.71 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 PLP A 500 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 6MR2 RELATED DB: PDB REMARK 900 RELATED ID: 6MR6 RELATED DB: PDB REMARK 900 RELATED ID: 6MRE RELATED DB: PDB REMARK 900 RELATED ID: 6MRH RELATED DB: PDB DBREF 6MRI A 1 406 UNP P77444 SUFS_ECOLI 1 406 SEQADV 6MRI MET A -13 UNP P77444 EXPRESSION TAG SEQADV 6MRI ALA A -12 UNP P77444 EXPRESSION TAG SEQADV 6MRI SER A -11 UNP P77444 EXPRESSION TAG SEQADV 6MRI MET A -10 UNP P77444 EXPRESSION TAG SEQADV 6MRI THR A -9 UNP P77444 EXPRESSION TAG SEQADV 6MRI GLY A -8 UNP P77444 EXPRESSION TAG SEQADV 6MRI GLY A -7 UNP P77444 EXPRESSION TAG SEQADV 6MRI GLN A -6 UNP P77444 EXPRESSION TAG SEQADV 6MRI GLN A -5 UNP P77444 EXPRESSION TAG SEQADV 6MRI MET A -4 UNP P77444 EXPRESSION TAG SEQADV 6MRI GLY A -3 UNP P77444 EXPRESSION TAG SEQADV 6MRI ARG A -2 UNP P77444 EXPRESSION TAG SEQADV 6MRI GLY A -1 UNP P77444 EXPRESSION TAG SEQADV 6MRI SER A 0 UNP P77444 EXPRESSION TAG SEQADV 6MRI ALA A 250 UNP P77444 GLU 250 ENGINEERED MUTATION SEQRES 1 A 420 MET ALA SER MET THR GLY GLY GLN GLN MET GLY ARG GLY SEQRES 2 A 420 SER MET ILE PHE SER VAL ASP LYS VAL ARG ALA ASP PHE SEQRES 3 A 420 PRO VAL LEU SER ARG GLU VAL ASN GLY LEU PRO LEU ALA SEQRES 4 A 420 TYR LEU ASP SER ALA ALA SER ALA GLN LYS PRO SER GLN SEQRES 5 A 420 VAL ILE ASP ALA GLU ALA GLU PHE TYR ARG HIS GLY TYR SEQRES 6 A 420 ALA ALA VAL HIS ARG GLY ILE HIS THR LEU SER ALA GLN SEQRES 7 A 420 ALA THR GLU LYS MET GLU ASN VAL ARG LYS ARG ALA SER SEQRES 8 A 420 LEU PHE ILE ASN ALA ARG SER ALA GLU GLU LEU VAL PHE SEQRES 9 A 420 VAL ARG GLY THR THR GLU GLY ILE ASN LEU VAL ALA ASN SEQRES 10 A 420 SER TRP GLY ASN SER ASN VAL ARG ALA GLY ASP ASN ILE SEQRES 11 A 420 ILE ILE SER GLN MET GLU HIS HIS ALA ASN ILE VAL PRO SEQRES 12 A 420 TRP GLN MET LEU CYS ALA ARG VAL GLY ALA GLU LEU ARG SEQRES 13 A 420 VAL ILE PRO LEU ASN PRO ASP GLY THR LEU GLN LEU GLU SEQRES 14 A 420 THR LEU PRO THR LEU PHE ASP GLU LYS THR ARG LEU LEU SEQRES 15 A 420 ALA ILE THR HIS VAL SER ASN VAL LEU GLY THR GLU ASN SEQRES 16 A 420 PRO LEU ALA GLU MET ILE THR LEU ALA HIS GLN HIS GLY SEQRES 17 A 420 ALA LYS VAL LEU VAL ASP GLY ALA GLN ALA VAL MET HIS SEQRES 18 A 420 HIS PRO VAL ASP VAL GLN ALA LEU ASP CYS ASP PHE TYR SEQRES 19 A 420 VAL PHE SER GLY HIS LYS LEU TYR GLY PRO THR GLY ILE SEQRES 20 A 420 GLY ILE LEU TYR VAL LYS GLU ALA LEU LEU GLN GLU MET SEQRES 21 A 420 PRO PRO TRP ALA GLY GLY GLY SER MET ILE ALA THR VAL SEQRES 22 A 420 SER LEU SER GLU GLY THR THR TRP THR LYS ALA PRO TRP SEQRES 23 A 420 ARG PHE GLU ALA GLY THR PRO ASN THR GLY GLY ILE ILE SEQRES 24 A 420 GLY LEU GLY ALA ALA LEU GLU TYR VAL SER ALA LEU GLY SEQRES 25 A 420 LEU ASN ASN ILE ALA GLU TYR GLU GLN ASN LEU MET HIS SEQRES 26 A 420 TYR ALA LEU SER GLN LEU GLU SER VAL PRO ASP LEU THR SEQRES 27 A 420 LEU TYR GLY PRO GLN ASN ARG LEU GLY VAL ILE ALA PHE SEQRES 28 A 420 ASN LEU GLY LYS HIS HIS ALA TYR ASP VAL GLY SER PHE SEQRES 29 A 420 LEU ASP ASN TYR GLY ILE ALA VAL ARG THR GLY HIS HIS SEQRES 30 A 420 CSS ALA MET PRO LEU MET ALA TYR TYR ASN VAL PRO ALA SEQRES 31 A 420 MET CYS ARG ALA SER LEU ALA MET TYR ASN THR HIS GLU SEQRES 32 A 420 GLU VAL ASP ARG LEU VAL THR GLY LEU GLN ARG ILE HIS SEQRES 33 A 420 ARG LEU LEU GLY MODRES 6MRI CSS A 364 CYS MODIFIED RESIDUE HET CSS A 364 7 HET PLP A 500 22 HETNAM CSS S-MERCAPTOCYSTEINE HETNAM PLP PYRIDOXAL-5'-PHOSPHATE HETSYN PLP VITAMIN B6 PHOSPHATE FORMUL 1 CSS C3 H7 N O2 S2 FORMUL 2 PLP C8 H10 N O6 P FORMUL 3 HOH *83(H2 O) HELIX 1 AA1 SER A 4 ASP A 11 1 8 HELIX 2 AA2 PHE A 12 SER A 16 5 5 HELIX 3 AA3 PRO A 36 GLY A 50 1 15 HELIX 4 AA4 HIS A 59 ASN A 81 1 23 HELIX 5 AA5 SER A 84 GLU A 86 5 3 HELIX 6 AA6 GLY A 93 VAL A 110 1 18 HELIX 7 AA7 HIS A 123 ASN A 126 5 4 HELIX 8 AA8 ILE A 127 GLY A 138 1 12 HELIX 9 AA9 GLN A 153 GLU A 155 5 3 HELIX 10 AB1 THR A 156 PHE A 161 1 6 HELIX 11 AB2 PRO A 182 HIS A 193 1 12 HELIX 12 AB3 ASP A 211 ASP A 216 1 6 HELIX 13 AB4 LYS A 239 GLN A 244 1 6 HELIX 14 AB5 ALA A 270 GLU A 275 5 6 HELIX 15 AB6 ASN A 280 GLY A 298 1 19 HELIX 16 AB7 GLY A 298 GLU A 318 1 21 HELIX 17 AB8 HIS A 343 TYR A 354 1 12 HELIX 18 AB9 ALA A 365 TYR A 372 1 8 HELIX 19 AC1 THR A 387 GLY A 406 1 20 SHEET 1 AA1 2 GLU A 18 VAL A 19 0 SHEET 2 AA1 2 LEU A 22 PRO A 23 -1 O LEU A 22 N VAL A 19 SHEET 1 AA2 2 ALA A 25 TYR A 26 0 SHEET 2 AA2 2 ILE A 356 ALA A 357 1 O ALA A 357 N ALA A 25 SHEET 1 AA3 7 LEU A 88 VAL A 91 0 SHEET 2 AA3 7 GLY A 234 VAL A 238 -1 O GLY A 234 N VAL A 91 SHEET 3 AA3 7 PHE A 219 SER A 223 -1 N TYR A 220 O TYR A 237 SHEET 4 AA3 7 LYS A 196 ASP A 200 1 N VAL A 199 O PHE A 219 SHEET 5 AA3 7 THR A 165 THR A 171 1 N LEU A 168 O LYS A 196 SHEET 6 AA3 7 ASN A 115 SER A 119 1 N ILE A 117 O ALA A 169 SHEET 7 AA3 7 GLU A 140 ILE A 144 1 O ARG A 142 N ILE A 116 SHEET 1 AA4 2 ILE A 256 SER A 260 0 SHEET 2 AA4 2 GLY A 264 TRP A 267 -1 O THR A 266 N ALA A 257 SHEET 1 AA5 4 LEU A 323 TYR A 326 0 SHEET 2 AA5 4 VAL A 334 LEU A 339 -1 O ASN A 338 N THR A 324 SHEET 3 AA5 4 MET A 377 SER A 381 -1 O CYS A 378 N PHE A 337 SHEET 4 AA5 4 ARG A 359 GLY A 361 -1 N ARG A 359 O ARG A 379 LINK NZ LYS A 226 C4A PLP A 500 1555 1555 1.43 LINK C HIS A 363 N CSS A 364 1555 1555 1.33 LINK C CSS A 364 N ALA A 365 1555 1555 1.34 SITE 1 AC1 12 THR A 94 THR A 95 HIS A 123 ASN A 175 SITE 2 AC1 12 ASP A 200 ALA A 202 GLN A 203 SER A 223 SITE 3 AC1 12 HIS A 225 LYS A 226 THR A 278 HOH A 608 CRYST1 125.730 125.730 138.550 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 0.007954 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007954 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007218 0.00000