HEADER ISOMERASE 30-APR-02 1GYY TITLE THE CRYSTAL STRUCTURE OF YDCE, A 4-OXALOCROTONATE TAUTOMERASE TITLE 2 HOMOLOGUE FROM ESCHERICHIA COLI, CONFIRMS THE STRUCTURAL BASIS FOR TITLE 3 OLIGOMER DIVERSITY COMPND MOL_ID: 1; COMPND 2 MOLECULE: HYPOTHETICAL PROTEIN YDCE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: YDCE, B1461; COMPND 5 EC: 5.3.2.1; COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: INACTIVATED BY (E)-2-FLUORO-P-HYDROXYCINNAMATE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PET24A+ KEYWDS TAUTOMERASE, ISOMERASE, HYPOTHETICAL PROTEIN, COMPLETE PROTE EXPDTA X-RAY DIFFRACTION AUTHOR J.ALMRUD,A.KERN,S.WANG,R.CZERWINSKI,W.JOHNSON,A.MURZIN,M.HACKERT, AUTHOR 2 C.WHITMAN REVDAT 4 01-MAY-24 1GYY 1 REMARK REVDAT 3 27-FEB-19 1GYY 1 REMARK REVDAT 2 24-FEB-09 1GYY 1 VERSN REVDAT 1 10-OCT-02 1GYY 0 JRNL AUTH J.ALMRUD,A.KERN,S.WANG,R.CZERWINSKI,W.JOHNSON,A.MURZIN, JRNL AUTH 2 M.HACKERT,C.WHITMAN JRNL TITL THE CRYSTAL STRUCTURE OF YDCE, A 4-OXALOCROTONATE JRNL TITL 2 TAUTOMERASE HOMOLOGUE FROM ESCHERICHIA COLI, CONFIRMS THE JRNL TITL 3 STRUCTURAL BASIS FOR OLIGOMER DIVERSITY JRNL REF BIOCHEMISTRY V. 41 12010 2002 JRNL REFN ISSN 0006-2960 JRNL PMID 12356301 JRNL DOI 10.1021/BI020271H REMARK 2 REMARK 2 RESOLUTION. 1.35 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.35 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 91.4 REMARK 3 NUMBER OF REFLECTIONS : 36652 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) : 0.151 REMARK 3 FREE R VALUE : 0.173 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.600 REMARK 3 FREE R VALUE TEST SET COUNT : 1678 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1188 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 26 REMARK 3 SOLVENT ATOMS : 283 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 11.00 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.064 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.054 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.350 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 8.660 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1GYY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 30-APR-02. REMARK 100 THE DEPOSITION ID IS D_1290009762. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-OCT-00 REMARK 200 TEMPERATURE (KELVIN) : 110.0 REMARK 200 PH : 6.50 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU IMAGE PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 276503 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.350 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.4 REMARK 200 DATA REDUNDANCY : 7.500 REMARK 200 R MERGE (I) : 0.03700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 29.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.35 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.39 REMARK 200 COMPLETENESS FOR SHELL (%) : 35.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.16000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.200 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: PARTIALLY REFINED 1.5A RESOLUTION NATIVE REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.87 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN: 25MG/ML IN 50MM HEPES, PH REMARK 280 7.3, 4 CELCIUS, SITTING DROP: MIX 15UL PROTEIN WITH 5UL 40% REMARK 280 SODIUM CITRATE PH 6.5, PH 6.50, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 22.35000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 38.10000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 23.35000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 38.10000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.35000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 23.35000 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 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: PQS 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 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 GLU A 11 CG CD OE1 OE2 REMARK 470 GLN A 15 CG CD OE1 NE2 REMARK 470 GLU B 11 CG CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 2132 O HOH B 2063 3645 2.10 REMARK 500 O HOH A 2062 O HOH B 2121 4555 2.19 REMARK 500 REMARK 500 REMARK: NULL 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 30 NE - CZ - NH2 ANGL. DEV. = -3.8 DEGREES REMARK 500 ARG B 30 NE - CZ - NH1 ANGL. DEV. = 4.8 DEGREES REMARK 500 ARG B 30 NE - CZ - NH2 ANGL. DEV. = -7.4 DEGREES REMARK 500 GLN B 62 CA - CB - CG ANGL. DEV. = 13.7 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 ILE B 59 -61.02 -103.83 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 LYS A 35 -12.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A2020 DISTANCE = 6.11 ANGSTROMS REMARK 525 HOH B2002 DISTANCE = 7.82 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FHC A 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FHC B 500 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1GYJ RELATED DB: PDB REMARK 900 THE CRYSTAL STRUCTURE OF YDCE, A 4- OXALOCROTONATE TAUTOMERASE REMARK 900 HOMOLOGUE FROM ESCHERICHIA COLI, CONFIRMS THE STRUCTURAL BASIS FOR REMARK 900 OLIGOMER DIVERSITY REMARK 900 RELATED ID: 1GYX RELATED DB: PDB REMARK 900 THE CRYSTAL STRUCTURE OF YDCE, A 4- OXALOCROTONATE TAUTOMERASE REMARK 900 HOMOLOGUE FROM ESCHERICHIA COLI, CONFIRMS THE STRUCTURAL BASIS FOR REMARK 900 OLIGOMER DIVERSITY DBREF 1GYY A 1 76 UNP P31992 YDCE_ECOLI 2 77 DBREF 1GYY B 1 76 UNP P31992 YDCE_ECOLI 2 77 SEQRES 1 A 76 PRO HIS ILE ASP ILE LYS CYS PHE PRO ARG GLU LEU ASP SEQRES 2 A 76 GLU GLN GLN LYS ALA ALA LEU ALA ALA ASP ILE THR ASP SEQRES 3 A 76 VAL ILE ILE ARG HIS LEU ASN SER LYS ASP SER SER ILE SEQRES 4 A 76 SER ILE ALA LEU GLN GLN ILE GLN PRO GLU SER TRP GLN SEQRES 5 A 76 ALA ILE TRP ASP ALA GLU ILE ALA PRO GLN MET GLU ALA SEQRES 6 A 76 LEU ILE LYS LYS PRO GLY TYR SER MET ASN ALA SEQRES 1 B 76 PRO HIS ILE ASP ILE LYS CYS PHE PRO ARG GLU LEU ASP SEQRES 2 B 76 GLU GLN GLN LYS ALA ALA LEU ALA ALA ASP ILE THR ASP SEQRES 3 B 76 VAL ILE ILE ARG HIS LEU ASN SER LYS ASP SER SER ILE SEQRES 4 B 76 SER ILE ALA LEU GLN GLN ILE GLN PRO GLU SER TRP GLN SEQRES 5 B 76 ALA ILE TRP ASP ALA GLU ILE ALA PRO GLN MET GLU ALA SEQRES 6 B 76 LEU ILE LYS LYS PRO GLY TYR SER MET ASN ALA HET FHC A 500 13 HET FHC B 500 13 HETNAM FHC 2-FLUORO-3-(4-HYDROXYPHENYL)-2E-PROPENEOATE HETSYN FHC (E)-2-FLUORO-P-HYDROXYCINNAMATE FORMUL 3 FHC 2(C9 H6 F O3 1-) FORMUL 5 HOH *283(H2 O) HELIX 1 1 ASP A 13 ASN A 33 1 21 HELIX 2 2 LYS A 35 ILE A 39 5 5 HELIX 3 3 GLN A 47 GLU A 49 5 3 HELIX 4 4 SER A 50 GLU A 58 1 9 HELIX 5 5 ASP B 13 ASN B 33 1 21 HELIX 6 6 LYS B 35 ILE B 39 5 5 HELIX 7 7 GLN B 47 GLU B 49 5 3 HELIX 8 8 SER B 50 ILE B 59 1 10 HELIX 9 9 ALA B 60 LEU B 66 5 7 SHEET 1 AA 4 SER A 40 GLN A 45 0 SHEET 2 AA 4 HIS A 2 CYS A 7 1 O ILE A 3 N ALA A 42 SHEET 3 AA 4 HIS B 2 CYS B 7 -1 O HIS B 2 N LYS A 6 SHEET 4 AA 4 SER B 40 GLN B 45 1 O SER B 40 N ILE B 3 SITE 1 AC1 9 PRO A 1 SER A 38 HOH A2149 HOH A2150 SITE 2 AC1 9 CYS B 7 PHE B 8 ARG B 10 TRP B 51 SITE 3 AC1 9 TYR B 72 SITE 1 AC2 10 CYS A 7 PHE A 8 ARG A 10 TRP A 51 SITE 2 AC2 10 TYR A 72 PRO B 1 SER B 38 HOH B2131 SITE 3 AC2 10 HOH B2132 HOH B2133 CRYST1 44.700 46.700 76.200 90.00 90.00 90.00 P 21 21 21 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 0.022371 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021413 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013123 0.00000 MTRIX1 1 -0.423087 0.906067 0.006327 15.14100 1 MTRIX2 1 0.906043 0.423126 -0.007145 -9.70400 1 MTRIX3 1 -0.009151 0.002709 -0.999954 20.07800 1