PDB Short entry for 1H56 HEADER ENDONUCLEASE 20-MAY-01 1H56 TITLE STRUCTURAL AND BIOCHEMICAL CHARACTERIZATION OF A NEW MAGNESIUM ION TITLE 2 BINDING SITE NEAR TYR94 IN THE RESTRICTION ENDONUCLEASE PVUII COMPND MOL_ID: 1; COMPND 2 MOLECULE: TYPE II RESTRICTION ENZYME PVUII; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: ENDONUCLEASE PVUII, R.PVUII; COMPND 5 EC: 3.1.21.4; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PROTEUS VULGARIS; SOURCE 3 ORGANISM_TAXID: 585; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 634468; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: HB101; SOURCE 7 EXPRESSION_SYSTEM_VECTOR: PPUC18; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PPVU1 KEYWDS ENDONUCLEASE, TYPE II RESTRICTION ENDONUCLEASE, HYDROLASE, NUCLEASE EXPDTA X-RAY DIFFRACTION AUTHOR A.SPYRIDA,C.MATZEN,T.LANIO,A.JELTSCH,A.SIMONCSITS,A.ATHANASIADIS, AUTHOR 2 E.SCHEURING-VANAMEE,M.KOKKINIDIS,A.PINGOUD REVDAT 5 13-DEC-23 1H56 1 REMARK LINK REVDAT 4 24-JUL-19 1H56 1 REMARK REVDAT 3 15-APR-15 1H56 1 SOURCE JRNL REMARK VERSN REVDAT 3 2 1 FORMUL REVDAT 2 24-FEB-09 1H56 1 VERSN REVDAT 1 07-AUG-03 1H56 0 JRNL AUTH A.SPYRIDAKI,C.MATZEN,T.LANIO,A.JELTSCH,A.SIMONCSITS, JRNL AUTH 2 A.ATHANASIADIS,E.SCHEURING-VANAMEE,M.KOKKINIDIS,A.PINGOUD JRNL TITL STRUCTURAL AND BIOCHEMICAL CHARACTERIZATION OF A NEW MG(2+) JRNL TITL 2 BINDING SITE NEAR TYR94 IN THE RESTRICTION ENDONUCLEASE JRNL TITL 3 PVUII. JRNL REF J.MOL.BIOL. V. 331 395 2003 JRNL REFN ISSN 0022-2836 JRNL PMID 12888347 JRNL DOI 10.1016/S0022-2836(03)00692-2 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.ATHANASIADIS,M.VLASSI,D.KOTSIFAKI,P.A.TUCKER,K.S.WILSON, REMARK 1 AUTH 2 M.KOKKINIDIS REMARK 1 TITL CRYSTAL STRUCTURE OF PVUII ENDONUCLEASE REVEALS EXTENSIVE REMARK 1 TITL 2 STRUCTURAL HOMOLOGIES TO ECORV REMARK 1 REF NAT.STRUCT.BIOL. V. 1 469 1994 REMARK 1 REFN ISSN 1072-8368 REMARK 1 PMID 7664066 REMARK 1 DOI 10.1038/NSB0794-469 REMARK 2 REMARK 2 RESOLUTION. 3.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 3.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 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) (%) : 92.3 REMARK 3 NUMBER OF REFLECTIONS : 8104 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) : 0.150 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.500 REMARK 3 FREE R VALUE TEST SET COUNT : 808 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.009 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) : 3.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.18 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 93.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1101 REMARK 3 BIN R VALUE (WORKING SET) : 0.2170 REMARK 3 BIN FREE R VALUE : 0.3590 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 11.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 148 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.029 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2584 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 68 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 0.24 REMARK 3 ESD FROM SIGMAA (A) : 0.35 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) : 0.42 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.54 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.790 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 7.470 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 11.760; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 9.890 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 14.390; 2.500 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1H56 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 20-MAY-01. REMARK 100 THE DEPOSITION ID IS D_1290008067. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-OCT-97 REMARK 200 TEMPERATURE (KELVIN) : 293.0 REMARK 200 PH : 5.00 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.92 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL 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 : 8104 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.000 REMARK 200 RESOLUTION RANGE LOW (A) : 8.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.3 REMARK 200 DATA REDUNDANCY : 1.800 REMARK 200 R MERGE (I) : 0.13000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1PVU REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.61 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.83 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 5.00 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 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+1/2,Y+1/2,-Z 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 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 42.09000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 52.64000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 42.09000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 52.64000 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 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 GLN A 33 -101.00 -99.39 REMARK 500 PRO A 52 -100.58 -62.90 REMARK 500 ARG A 54 -100.47 -99.54 REMARK 500 ASP A 58 -98.66 -82.90 REMARK 500 THR A 82 -48.48 -132.54 REMARK 500 HIS A 83 117.52 174.68 REMARK 500 TRP A 131 -28.99 -39.04 REMARK 500 PHE B 32 30.49 -97.28 REMARK 500 ASP B 34 49.86 30.54 REMARK 500 PRO B 52 176.73 -47.94 REMARK 500 ARG B 54 -153.29 -82.14 REMARK 500 ASN B 57 154.98 -40.07 REMARK 500 ASP B 61 -164.31 -108.60 REMARK 500 LEU B 76 -87.73 -91.42 REMARK 500 THR B 82 -79.30 -132.73 REMARK 500 SER B 133 -4.82 -53.61 REMARK 500 ASN B 141 63.12 35.70 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 MG A 1 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 58 OD2 REMARK 620 2 GLU A 68 OE1 88.8 REMARK 620 3 GLU A 68 OE2 72.4 50.1 REMARK 620 4 HOH A2014 O 147.6 74.5 113.4 REMARK 620 5 HOH A2016 O 62.6 127.0 134.9 105.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 1 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR B 82 O REMARK 620 2 TYR B 94 OH 84.6 REMARK 620 3 HOH B2013 O 92.9 125.4 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EYU RELATED DB: PDB REMARK 900 HIGH RESOLUTION STRUCTURE OF THE PVUII ENDONCULEASE/COGNATE DNA REMARK 900 COMPLEX AT PH 4.6 REMARK 900 RELATED ID: 1F0O RELATED DB: PDB REMARK 900 PVUII ENDONUCLEASE/COGNATE DNA COMPLEX ( GLUTARALDEHYDE-CROSSLINKED REMARK 900 CRYSTAL) AT PH 7. 5 WITH TWO CALCIUM IONS ATEACH ACTIVE SITE REMARK 900 RELATED ID: 1K0Z RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE PVUII ENDONUCLEASE WITH PR3+ ANDSO4 IONS REMARK 900 BOUND IN THE ACTIVE SITE AT 2.05A. REMARK 900 RELATED ID: 1NI0 RELATED DB: PDB REMARK 900 STRUCTURE OF THE Y94F MUTANT OF THE RESTRICTIONENDONUCLEASE PVUII REMARK 900 RELATED ID: 1PVI RELATED DB: PDB REMARK 900 PVUII ENDONUCLEASE COMPLEXED WITH COGNATE DEOXYRIBONUCLEIC ACID REMARK 900 RELATED ID: 1PVU RELATED DB: PDB REMARK 900 PVUII RESTRICTION ENDONUCLEASE REMARK 900 RELATED ID: 2PVI RELATED DB: PDB REMARK 900 PVUII ENDONUCLEASE COMPLEXED TO AN IODINATED COGNATE REMARK 900 DEOXYRIBONUCLEIC ACID REMARK 900 RELATED ID: 3PVI RELATED DB: PDB REMARK 900 D34G MUTANT OF PVUII ENDONUCLEASE COMPLEXED WITH COGNATE REMARK 900 DEOXYRIBONUCLEIC ACID SHOWS THAT ASP34 IS DIRECTLY INVOLVED IN REMARK 900 DEOXYRIBONUCLEIC ACID RECOGNITION AND INDIRECTLY INVOLVED IN REMARK 900 CATALYSIS DBREF 1H56 A 2 157 UNP P23657 T2P2_PROVU 2 157 DBREF 1H56 B 2 157 UNP P23657 T2P2_PROVU 2 157 SEQRES 1 A 156 SER HIS PRO ASP LEU ASN LYS LEU LEU GLU LEU TRP PRO SEQRES 2 A 156 HIS ILE GLN GLU TYR GLN ASP LEU ALA LEU LYS HIS GLY SEQRES 3 A 156 ILE ASN ASP ILE PHE GLN ASP ASN GLY GLY LYS LEU LEU SEQRES 4 A 156 GLN VAL LEU LEU ILE THR GLY LEU THR VAL LEU PRO GLY SEQRES 5 A 156 ARG GLU GLY ASN ASP ALA VAL ASP ASN ALA GLY GLN GLU SEQRES 6 A 156 TYR GLU LEU LYS SER ILE ASN ILE ASP LEU THR LYS GLY SEQRES 7 A 156 PHE SER THR HIS HIS HIS MET ASN PRO VAL ILE ILE ALA SEQRES 8 A 156 LYS TYR ARG GLN VAL PRO TRP ILE PHE ALA ILE TYR ARG SEQRES 9 A 156 GLY ILE ALA ILE GLU ALA ILE TYR ARG LEU GLU PRO LYS SEQRES 10 A 156 ASP LEU GLU PHE TYR TYR ASP LYS TRP GLU ARG LYS TRP SEQRES 11 A 156 TYR SER ASP GLY HIS LYS ASP ILE ASN ASN PRO LYS ILE SEQRES 12 A 156 PRO VAL LYS TYR VAL MET GLU HIS GLY THR LYS ILE TYR SEQRES 1 B 156 SER HIS PRO ASP LEU ASN LYS LEU LEU GLU LEU TRP PRO SEQRES 2 B 156 HIS ILE GLN GLU TYR GLN ASP LEU ALA LEU LYS HIS GLY SEQRES 3 B 156 ILE ASN ASP ILE PHE GLN ASP ASN GLY GLY LYS LEU LEU SEQRES 4 B 156 GLN VAL LEU LEU ILE THR GLY LEU THR VAL LEU PRO GLY SEQRES 5 B 156 ARG GLU GLY ASN ASP ALA VAL ASP ASN ALA GLY GLN GLU SEQRES 6 B 156 TYR GLU LEU LYS SER ILE ASN ILE ASP LEU THR LYS GLY SEQRES 7 B 156 PHE SER THR HIS HIS HIS MET ASN PRO VAL ILE ILE ALA SEQRES 8 B 156 LYS TYR ARG GLN VAL PRO TRP ILE PHE ALA ILE TYR ARG SEQRES 9 B 156 GLY ILE ALA ILE GLU ALA ILE TYR ARG LEU GLU PRO LYS SEQRES 10 B 156 ASP LEU GLU PHE TYR TYR ASP LYS TRP GLU ARG LYS TRP SEQRES 11 B 156 TYR SER ASP GLY HIS LYS ASP ILE ASN ASN PRO LYS ILE SEQRES 12 B 156 PRO VAL LYS TYR VAL MET GLU HIS GLY THR LYS ILE TYR HET MG A 1 1 HET MG B 1 1 HETNAM MG MAGNESIUM ION FORMUL 3 MG 2(MG 2+) FORMUL 5 HOH *68(H2 O) HELIX 1 1 HIS A 3 HIS A 26 1 24 HELIX 2 2 ASN A 35 GLY A 47 1 13 HELIX 3 3 ASN A 87 ARG A 95 1 9 HELIX 4 4 GLU A 116 ASP A 119 5 4 HELIX 5 5 LEU A 120 ASP A 134 1 15 HELIX 6 6 VAL A 146 GLY A 153 1 8 HELIX 7 7 HIS B 3 HIS B 26 1 24 HELIX 8 8 ASN B 35 GLY B 47 1 13 HELIX 9 9 ASN B 87 GLN B 96 1 10 HELIX 10 10 GLU B 116 ASP B 134 1 19 HELIX 11 11 VAL B 146 GLY B 153 1 8 SHEET 1 AA 2 THR A 49 VAL A 50 0 SHEET 2 AA 2 ALA A 59 VAL A 60 -1 O VAL A 60 N THR A 49 SHEET 1 AB 4 GLU A 68 ASN A 73 0 SHEET 2 AB 4 TRP A 99 ARG A 105 1 O ILE A 100 N LYS A 70 SHEET 3 AB 4 ALA A 108 LEU A 115 -1 O ALA A 108 N ARG A 105 SHEET 4 AB 4 THR A 154 TYR A 157 -1 O THR A 154 N ARG A 114 SHEET 1 AC 2 GLY A 79 PHE A 80 0 SHEET 2 AC 2 ILE A 144 PRO A 145 -1 O ILE A 144 N PHE A 80 SHEET 1 BA 6 THR B 49 VAL B 50 0 SHEET 2 BA 6 ALA B 59 VAL B 60 -1 O VAL B 60 N THR B 49 SHEET 3 BA 6 GLU B 66 ASN B 73 -1 O TYR B 67 N ALA B 59 SHEET 4 BA 6 TRP B 99 ARG B 105 1 O ILE B 100 N LYS B 70 SHEET 5 BA 6 ALA B 108 LEU B 115 -1 O ALA B 108 N ARG B 105 SHEET 6 BA 6 THR B 154 TYR B 157 -1 O THR B 154 N ARG B 114 SHEET 1 BB 2 GLY B 79 PHE B 80 0 SHEET 2 BB 2 ILE B 144 PRO B 145 -1 O ILE B 144 N PHE B 80 LINK MG MG A 1 OD2 ASP A 58 1555 1555 2.99 LINK MG MG A 1 OE1 GLU A 68 1555 1555 2.41 LINK MG MG A 1 OE2 GLU A 68 1555 1555 2.72 LINK MG MG A 1 O HOH A2014 1555 1555 1.93 LINK MG MG A 1 O HOH A2016 1555 1555 2.66 LINK MG MG B 1 O THR B 82 1555 1555 2.66 LINK MG MG B 1 OH TYR B 94 1555 1555 2.35 LINK MG MG B 1 O HOH B2013 1555 1555 2.84 SITE 1 AC1 5 ASP A 58 GLU A 68 LYS A 70 HOH A2014 SITE 2 AC1 5 HOH A2016 SITE 1 AC2 4 THR B 82 HIS B 83 TYR B 94 HOH B2013 CRYST1 84.180 105.280 46.670 90.00 90.00 90.00 P 21 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 0.011879 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009498 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021427 0.00000