1XT4 - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 21-OCT-04 1XT4

TITLE URATE OXIDASE FROM ASPERGILLUS FLAVUS COMPLEXED WITH GUANINE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: URICASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: URATE OXIDASE; COMPND 5 EC: 1.7.3.3; COMPND 6 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ASPERGILLUS FLAVUS; SOURCE 3 ORGANISM_TAXID: 5059; SOURCE 4 EXPRESSION_SYSTEM: SACCHAROMYCES CEREVISIAE; SOURCE 5 EXPRESSION_SYSTEM_COMMON: BAKER'S YEAST; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 4932

KEYWDS OXIDOREDUCTASE, URIC ACID DEGRADATION, DIMERIC BARREL, TUNNEL-SHAPED KEYWDS 2 PROTEIN

EXPDTA X-RAY DIFFRACTION

AUTHOR P.RETAILLEAU,N.COLLOC'H,D.VIVARES,F.BONNETE,B.CASTRO,M.EL HAJJI, AUTHOR 2 T.PRANGE

REVDAT 3 13-JUL-11 1XT4 1 VERSN REVDAT 2 24-FEB-09 1XT4 1 VERSN REVDAT 1 22-MAR-05 1XT4 0

JRNL AUTH P.RETAILLEAU,N.COLLOC'H,D.VIVARES,F.BONNETE,B.CASTRO, JRNL AUTH 2 M.EL HAJJI,T.PRANGE JRNL TITL URATE OXIDASE FROM ASPERGILLUS FLAVUS: NEW CRYSTAL-PACKING JRNL TITL 2 CONTACTS IN RELATION TO THE CONTENT OF THE ACTIVE SITE. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 61 218 2005 JRNL REFN ISSN 0907-4449 JRNL PMID 15735331 JRNL DOI 10.1107/S0907444904031531

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH N.COLLOC'H,M.EL HAJJI,B.BACHET,G.L'HERMITE,M.SCHILTZ, REMARK 1 AUTH 2 B.CASTRO,J.P.MORNON REMARK 1 TITL CRYSTAL STRUCTURE OF THE PROTEIN DRUG URATE REMARK 1 TITL 2 OXIDASE-INHIBITOR COMPLEX AT 2.05 A RESOLUTION REMARK 1 REF NAT.STRUCT.BIOL. V. 4 947 1997 REMARK 1 REFN ISSN 1072-8368 REMARK 1 PMID 9360612 REMARK 1 DOI 10.1038/NSB1197-947

REMARK 2 REMARK 2 RESOLUTION. 2.01 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : BUSTER-TNT REMARK 3 AUTHORS : BLANC,ROVERSI,VONRHEIN,BRICOGNE,TRONRUD, REMARK 3 : TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.01 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 25860 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) : NULL REMARK 3 R VALUE (WORKING SET) : 0.169 REMARK 3 FREE R VALUE : 0.213 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2599 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 (ANGSTROMS) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING + TEST SET) : NULL REMARK 3 BIN R VALUE (WORKING + TEST SET) : 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 : 2362 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 11 REMARK 3 SOLVENT ATOMS : 117 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 33.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.30 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) : 0.20 REMARK 3 DPI (BLOW EQ-10) BASED ON R VALUE (A) : NULL REMARK 3 DPI (BLOW EQ-9) BASED ON FREE R VALUE (A) : NULL REMARK 3 DPI (CRUICKSHANK) BASED ON R VALUE (A) : NULL REMARK 3 DPI (CRUICKSHANK) BASED ON FREE R VALUE (A) : NULL REMARK 3 REMARK 3 REFERENCES: BLOW, D. (2002) ACTA CRYST D58, 792-797 REMARK 3 CRUICKSHANK, D.W.J. (1999) ACTA CRYST D55, 583-601 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : NULL REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : NULL REMARK 3 REMARK 3 NUMBER OF GEOMETRIC FUNCTION TERMS DEFINED : 15 REMARK 3 TERM COUNT WEIGHT FUNCTION. REMARK 3 BOND LENGTHS : NULL ; NULL ; NULL REMARK 3 BOND ANGLES : NULL ; NULL ; NULL REMARK 3 TORSION ANGLES : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS : NULL ; NULL ; NULL REMARK 3 BAD NON-BONDED CONTACTS : NULL ; NULL ; NULL REMARK 3 IMPROPER TORSIONS : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES : NULL ; NULL ; NULL REMARK 3 CHIRAL IMPROPER TORSION : NULL ; NULL ; NULL REMARK 3 SUM OF OCCUPANCIES : NULL ; NULL ; NULL REMARK 3 UTILITY DISTANCES : NULL ; NULL ; NULL REMARK 3 UTILITY ANGLES : NULL ; NULL ; NULL REMARK 3 UTILITY TORSION : NULL ; NULL ; NULL REMARK 3 IDEAL-DIST CONTACT TERM : NULL ; NULL ; NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 1.21 REMARK 3 PEPTIDE OMEGA TORSION ANGLES (DEGREES) : NULL REMARK 3 OTHER TORSION ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1XT4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 25-OCT-04. REMARK 100 THE RCSB ID CODE IS RCSB030737.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-NOV-03 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 8.0 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26240 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.1 REMARK 200 DATA REDUNDANCY : 5.500 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.13400 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 13.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.15 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.6 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.28100 REMARK 200 <I/SIGMA(I)> FOR SHELL : 9.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 1R51 REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.88 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 8.5MG/ML PROTEIN, 0.2MG/ML GUANINE, 5- REMARK 280 7%(W/V) PEG 8000, 100MM TRIS/HCL, PH 8.0, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE 291K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2 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,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-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 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 39.99200 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 48.22250 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 52.77150 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 39.99200 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 48.22250 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 52.77150 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 39.99200 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 48.22250 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 52.77150 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 39.99200 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 48.22250 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 52.77150 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 TETRAMER GENERATED FROM THE REMARK 300 MONOMER IN THE ASYMMETRIC UNIT BY THE OPERATIONS: X, 1-Y, 1-Z, AND REMARK 300 1-X, Y, 1-Z AND 1-X, 1-Y, Z

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: 24640 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 44230 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -105.0 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 79.98400 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 96.44500 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -1.000000 0.000000 0.000000 79.98400 REMARK 350 BIOMT2 3 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 -1.000000 105.54300 REMARK 350 BIOMT1 4 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 96.44500 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 105.54300

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 SER A 296 REMARK 465 LEU A 297 REMARK 465 LYS A 298 REMARK 465 SER A 299 REMARK 465 LYS A 300 REMARK 465 LEU A 301

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 CYS A 290 CA - CB - SG ANGL. DEV. = 6.7 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 23 -80.02 -60.71 REMARK 500 HIS A 118 31.08 -156.50 REMARK 500 SER A 124 166.40 79.04 REMARK 500 SER A 226 163.77 177.83 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 GUN A 901

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1R51 RELATED DB: PDB REMARK 900 THE SAME PROTEIN COMPLEXED WITH ITS INHIBITOR 8-AZAXANTHIN REMARK 900 RELATED ID: 1R4S RELATED DB: PDB REMARK 900 THE SAME PROTEIN COMPLEXED WITH 9-METHYL URIC ACID REMARK 900 RELATED ID: 1R4U RELATED DB: PDB REMARK 900 THE SAME PROTEIN COMPLEXED WITH OXONIC ACID

DBREF 1XT4 A 1 301 UNP Q00511 URIC_ASPFL 1 301

SEQADV 1XT4 SAC A 1 UNP Q00511 SER 1 MODIFIED RESIDUE

SEQRES 1 A 301 SAC ALA VAL LYS ALA ALA ARG TYR GLY LYS ASP ASN VAL SEQRES 2 A 301 ARG VAL TYR LYS VAL HIS LYS ASP GLU LYS THR GLY VAL SEQRES 3 A 301 GLN THR VAL TYR GLU MET THR VAL CYS VAL LEU LEU GLU SEQRES 4 A 301 GLY GLU ILE GLU THR SER TYR THR LYS ALA ASP ASN SER SEQRES 5 A 301 VAL ILE VAL ALA THR ASP SER ILE LYS ASN THR ILE TYR SEQRES 6 A 301 ILE THR ALA LYS GLN ASN PRO VAL THR PRO PRO GLU LEU SEQRES 7 A 301 PHE GLY SER ILE LEU GLY THR HIS PHE ILE GLU LYS TYR SEQRES 8 A 301 ASN HIS ILE HIS ALA ALA HIS VAL ASN ILE VAL CYS HIS SEQRES 9 A 301 ARG TRP THR ARG MET ASP ILE ASP GLY LYS PRO HIS PRO SEQRES 10 A 301 HIS SER PHE ILE ARG ASP SER GLU GLU LYS ARG ASN VAL SEQRES 11 A 301 GLN VAL ASP VAL VAL GLU GLY LYS GLY ILE ASP ILE LYS SEQRES 12 A 301 SER SER LEU SER GLY LEU THR VAL LEU LYS SER THR ASN SEQRES 13 A 301 SER GLN PHE TRP GLY PHE LEU ARG ASP GLU TYR THR THR SEQRES 14 A 301 LEU LYS GLU THR TRP ASP ARG ILE LEU SER THR ASP VAL SEQRES 15 A 301 ASP ALA THR TRP GLN TRP LYS ASN PHE SER GLY LEU GLN SEQRES 16 A 301 GLU VAL ARG SER HIS VAL PRO LYS PHE ASP ALA THR TRP SEQRES 17 A 301 ALA THR ALA ARG GLU VAL THR LEU LYS THR PHE ALA GLU SEQRES 18 A 301 ASP ASN SER ALA SER VAL GLN ALA THR MET TYR LYS MET SEQRES 19 A 301 ALA GLU GLN ILE LEU ALA ARG GLN GLN LEU ILE GLU THR SEQRES 20 A 301 VAL GLU TYR SER LEU PRO ASN LYS HIS TYR PHE GLU ILE SEQRES 21 A 301 ASP LEU SER TRP HIS LYS GLY LEU GLN ASN THR GLY LYS SEQRES 22 A 301 ASN ALA GLU VAL PHE ALA PRO GLN SER ASP PRO ASN GLY SEQRES 23 A 301 LEU ILE LYS CYS THR VAL GLY ARG SER SER LEU LYS SER SEQRES 24 A 301 LYS LEU

MODRES 1XT4 SAC A 1 SER N-ACETYL-SERINE

HET SAC A 1 9 HET GUN A 901 11

HETNAM SAC N-ACETYL-SERINE HETNAM GUN GUANINE

FORMUL 1 SAC C5 H9 N O4 FORMUL 2 GUN C5 H5 N5 O FORMUL 3 HOH *117(H2 O)

HELIX 1 1 ILE A 42 LYS A 48 1 7 HELIX 2 2 ASP A 50 ILE A 54 5 5 HELIX 3 3 ALA A 56 ASN A 71 1 16 HELIX 4 4 PRO A 75 TYR A 91 1 17 HELIX 5 5 GLY A 193 HIS A 200 1 8 HELIX 6 6 PRO A 202 ASP A 222 1 21 HELIX 7 7 SER A 226 GLN A 242 1 17 HELIX 8 8 THR A 271 ALA A 275 5 5

SHEET 1 A 8 TYR A 8 LYS A 20 0 SHEET 2 A 8 GLN A 27 GLY A 40 -1 O LEU A 38 N TYR A 8 SHEET 3 A 8 ILE A 94 HIS A 104 -1 O ASN A 100 N CYS A 35 SHEET 4 A 8 LYS A 127 VAL A 135 -1 O VAL A 134 N ALA A 97 SHEET 5 A 8 GLY A 139 LYS A 153 -1 O SER A 145 N ASN A 129 SHEET 6 A 8 LEU A 178 TRP A 188 -1 O VAL A 182 N LEU A 149 SHEET 7 A 8 ILE A 245 ASN A 254 -1 O GLU A 249 N THR A 185 SHEET 8 A 8 GLY A 286 GLY A 293 -1 O ILE A 288 N LEU A 252 SHEET 1 B 2 THR A 107 ILE A 111 0 SHEET 2 B 2 LYS A 114 ILE A 121 -1 O HIS A 116 N MET A 109 SHEET 1 C 2 TYR A 257 GLU A 259 0 SHEET 2 C 2 PHE A 278 PRO A 280 -1 O ALA A 279 N PHE A 258

LINK C SAC A 1 N ALA A 2 1555 1555 1.32

CISPEP 1 THR A 74 PRO A 75 0 -8.14 CISPEP 2 ASP A 283 PRO A 284 0 -5.48

SITE 1 AC1 9 ILE A 54 THR A 57 PHE A 159 ARG A 176 SITE 2 AC1 9 SER A 226 VAL A 227 GLN A 228 ASN A 254 SITE 3 AC1 9 HOH A1102

CRYST1 79.984 96.445 105.543 90.00 90.00 90.00 I 2 2 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 0.012502 0.000000 0.000000 0.00000

SCALE2 0.000000 0.010369 0.000000 0.00000

SCALE3 0.000000 0.000000 0.009475 0.00000