HEADER REPLICATION REGULATOR 26-JAN-05 1YO7 TITLE RE-ENGINEERING TOPOLOGY OF THE HOMODIMERIC ROP PROTEIN INTO A SINGLE- TITLE 2 CHAIN 4-HELIX BUNDLE COMPND MOL_ID: 1; COMPND 2 MOLECULE: REGULATORY PROTEIN ROP; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: RNA ONE MODULATOR, ROM; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: ROP; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI K12; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 83333; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: K-12; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PEX70; SOURCE 10 OTHER_DETAILS: THE GENE FOR LMROP2 WAS ARTIFICIALLY ASSEMBLED USING SOURCE 11 CASSETTE MUTAGENESIS AND C LONED INTO THE EXPRESSION VECTOR KEYWDS PROTEIN DESIGN, RE-ENGINEERING OF TOPOLOGY, FOUR-HELIX BUNDLE, KEYWDS 2 REPLICATION REGULATOR EXPDTA X-RAY DIFFRACTION AUTHOR M.SAGERMANN,S.C.EMERY,C.SANDER REVDAT 6 23-AUG-23 1YO7 1 REMARK REVDAT 5 20-OCT-21 1YO7 1 REMARK SEQADV LINK REVDAT 4 11-OCT-17 1YO7 1 REMARK REVDAT 3 02-AUG-17 1YO7 1 SOURCE REMARK REVDAT 2 24-FEB-09 1YO7 1 VERSN REVDAT 1 15-FEB-05 1YO7 0 JRNL AUTH M.SAGERMANN,S.C.EMERY,C.SANDER JRNL TITL RE-ENGINEERING TOPOLOGY OF THE HOMODIMERIC ROP PROTEIN INTO JRNL TITL 2 A SINGLE-CHAIN 4-HELIX BUNDLE. JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH D.W.BANNER,M.KOKKINIDIS,D.TSERNOGLOU REMARK 1 TITL STRUCTURE OF THE COLE1 ROP PROTEIN AT 1.7 A RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 196 657 1987 REMARK 1 REFN ISSN 0022-2836 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) : 26.40 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 5376 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) : 0.216 REMARK 3 FREE R VALUE : 0.310 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 495 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 : 1910 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 21 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 12.74 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -5.85000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : 4.27000 REMARK 3 B13 (A**2) : 1.58000 REMARK 3 B23 (A**2) : 1.11000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.31 REMARK 3 ESD FROM SIGMAA (A) : 0.28 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) : 0.52 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.59 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ANISOTROPIC 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: DATA WERE COLLECTED FROM VERY FLAT, REMARK 3 PLATE-LIKE CRYSTALS. ONLY PARTIALLY OCCUPIED PLATINUM ATOMS REMARK 3 COULD BE USED TO CALCULATE PRELIMINARY PHASES. THESE INITIAL HA REMARK 3 POSITIONS WERE USED IN COMBINATION WITH MOLECULAR REPLACEMENT TO REMARK 3 DETERMINE THE STRUCTURE. REMARK 4 REMARK 4 1YO7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-FEB-05. REMARK 100 THE DEPOSITION ID IS D_1000031743. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-JUL-94 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 6.6 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 : SIEMENS REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE, NI FILTER REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 5376 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 26.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 87.9 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL 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) : 2.98 REMARK 200 COMPLETENESS FOR SHELL (%) : 85.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.11000 REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIR AND MODEL BUILDING REMARK 200 SOFTWARE USED: MLPHARE, AMORE, CNS REMARK 200 STARTING MODEL: PDB ENTRY 1ROP REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.81 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.29 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10% PEG 2000, 50MM TRIS-HCL PH6.6, REMARK 280 40MM MGCL2, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 26.41500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: MONOMERIC 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 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 58 -74.42 -90.56 REMARK 500 ASP A 63 -56.83 -153.02 REMARK 500 LYS A 119 40.24 -97.24 REMARK 500 ALA B 31 70.05 -109.95 REMARK 500 ASN B 59 -101.09 -141.08 REMARK 500 ASP B 63 -25.19 -148.11 REMARK 500 GLU B 64 -14.66 -143.03 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 201 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 42 NE2 REMARK 620 2 ASP A 46 OD2 101.4 REMARK 620 3 HIS B 42 NE2 105.1 123.7 REMARK 620 4 ASP B 46 OD2 112.7 115.2 98.7 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 201 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1ROP RELATED DB: PDB REMARK 900 REPRESSOR OF PRIMER AT 1.7 A RESOLUTION. REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUES 1-56 WERE TAKEN FROM WILD TYPE ROP REMARK 999 (EXCEPT FOR R55S), A NEW LOOP-B (RESIDUES KKNGQI) REMARK 999 WAS ADDED, THEN RESIDUES 32-56 WERE ADDED REMARK 999 SUBSEQUENTLY FOLLOWED BY THE NEW LOOP-C REMARK 999 (SEQUENCE GGS). FINALLY, WILD TYPE ROP RESIDUES REMARK 999 3-29 AND A TERMINAL AKG SEQUENCE WERE ADDED. DBREF 1YO7 A 1 56 UNP P03051 ROP_ECOLI 1 56 DBREF 1YO7 A 63 87 UNP P03051 ROP_ECOLI 32 56 DBREF 1YO7 A 91 117 UNP P03051 ROP_ECOLI 3 29 DBREF 1YO7 B 1 56 UNP P03051 ROP_ECOLI 1 56 DBREF 1YO7 B 63 87 UNP P03051 ROP_ECOLI 32 56 DBREF 1YO7 B 91 117 UNP P03051 ROP_ECOLI 3 29 SEQADV 1YO7 SER A 55 UNP P03051 ARG 55 ENGINEERED MUTATION SEQADV 1YO7 LYS A 57 UNP P03051 SEE REMARK 999 SEQADV 1YO7 LYS A 58 UNP P03051 SEE REMARK 999 SEQADV 1YO7 ASN A 59 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLN A 61 UNP P03051 SEE REMARK 999 SEQADV 1YO7 ILE A 62 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLY A 88 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLY A 89 UNP P03051 SEE REMARK 999 SEQADV 1YO7 SER A 90 UNP P03051 SEE REMARK 999 SEQADV 1YO7 ALA A 118 UNP P03051 SEE REMARK 999 SEQADV 1YO7 LYS A 119 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLY A 120 UNP P03051 SEE REMARK 999 SEQADV 1YO7 SER B 55 UNP P03051 ARG 55 ENGINEERED MUTATION SEQADV 1YO7 LYS B 57 UNP P03051 SEE REMARK 999 SEQADV 1YO7 LYS B 58 UNP P03051 SEE REMARK 999 SEQADV 1YO7 ASN B 59 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLN B 61 UNP P03051 SEE REMARK 999 SEQADV 1YO7 ILE B 62 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLY B 88 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLY B 89 UNP P03051 SEE REMARK 999 SEQADV 1YO7 SER B 90 UNP P03051 SEE REMARK 999 SEQADV 1YO7 ALA B 118 UNP P03051 SEE REMARK 999 SEQADV 1YO7 LYS B 119 UNP P03051 SEE REMARK 999 SEQADV 1YO7 GLY B 120 UNP P03051 SEE REMARK 999 SEQRES 1 A 120 MET THR LYS GLN GLU LYS THR ALA LEU ASN MET ALA ARG SEQRES 2 A 120 PHE ILE ARG SER GLN THR LEU THR LEU LEU GLU LYS LEU SEQRES 3 A 120 ASN GLU LEU ASP ALA ASP GLU GLN ALA ASP ILE CYS GLU SEQRES 4 A 120 SER LEU HIS ASP HIS ALA ASP GLU LEU TYR ARG SER CYS SEQRES 5 A 120 LEU ALA SER PHE LYS LYS ASN GLY GLN ILE ASP GLU GLN SEQRES 6 A 120 ALA ASP ILE CYS GLU SER LEU HIS ASP HIS ALA ASP GLU SEQRES 7 A 120 LEU TYR ARG SER CYS LEU ALA ARG PHE GLY GLY SER LYS SEQRES 8 A 120 GLN GLU LYS THR ALA LEU ASN MET ALA ARG PHE ILE ARG SEQRES 9 A 120 SER GLN THR LEU THR LEU LEU GLU LYS LEU ASN GLU LEU SEQRES 10 A 120 ALA LYS GLY SEQRES 1 B 120 MET THR LYS GLN GLU LYS THR ALA LEU ASN MET ALA ARG SEQRES 2 B 120 PHE ILE ARG SER GLN THR LEU THR LEU LEU GLU LYS LEU SEQRES 3 B 120 ASN GLU LEU ASP ALA ASP GLU GLN ALA ASP ILE CYS GLU SEQRES 4 B 120 SER LEU HIS ASP HIS ALA ASP GLU LEU TYR ARG SER CYS SEQRES 5 B 120 LEU ALA SER PHE LYS LYS ASN GLY GLN ILE ASP GLU GLN SEQRES 6 B 120 ALA ASP ILE CYS GLU SER LEU HIS ASP HIS ALA ASP GLU SEQRES 7 B 120 LEU TYR ARG SER CYS LEU ALA ARG PHE GLY GLY SER LYS SEQRES 8 B 120 GLN GLU LYS THR ALA LEU ASN MET ALA ARG PHE ILE ARG SEQRES 9 B 120 SER GLN THR LEU THR LEU LEU GLU LYS LEU ASN GLU LEU SEQRES 10 B 120 ALA LYS GLY HET ZN A 201 1 HETNAM ZN ZINC ION FORMUL 3 ZN ZN 2+ FORMUL 4 HOH *21(H2 O) HELIX 1 1 THR A 2 LEU A 29 1 28 HELIX 2 2 ALA A 31 ASN A 59 1 29 HELIX 3 3 ASP A 63 PHE A 87 1 25 HELIX 4 4 SER A 90 LYS A 119 1 30 HELIX 5 5 THR B 2 LEU B 29 1 28 HELIX 6 6 ALA B 31 ASN B 59 1 29 HELIX 7 7 GLU B 64 PHE B 87 1 24 HELIX 8 8 SER B 90 LYS B 119 1 30 LINK NE2 HIS A 42 ZN ZN A 201 1555 1555 2.23 LINK OD2 ASP A 46 ZN ZN A 201 1555 1555 2.04 LINK ZN ZN A 201 NE2 HIS B 42 1555 1555 2.15 LINK ZN ZN A 201 OD2 ASP B 46 1555 1555 1.82 SITE 1 AC1 4 HIS A 42 ASP A 46 HIS B 42 ASP B 46 CRYST1 46.607 52.830 50.360 90.00 94.99 90.00 P 1 21 1 4 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 0.021456 0.000000 0.001873 0.00000 SCALE2 0.000000 0.018929 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019933 0.00000