HEADER REPLICATION/DNA 29-APR-99 1REP TITLE CRYSTAL STRUCTURE OF REPLICATION INITIATOR PROTEIN REPE54 OF MINI-F TITLE 2 PLASMID COMPLEXED WITH AN ITERON DNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'- COMPND 3 D(*CP*CP*TP*GP*TP*GP*AP*CP*AP*AP*AP*TP*TP*GP*CP*CP*CP*TP*CP*AP*GP*T)- COMPND 4 3'); COMPND 5 CHAIN: A; COMPND 6 SYNONYM: ITERON; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: DNA (5'- COMPND 10 D(*CP*TP*GP*AP*GP*GP*GP*CP*AP*AP*TP*TP*TP*GP*TP*CP*AP*CP*AP*GP*GP*T)- COMPND 11 3'); COMPND 12 CHAIN: B; COMPND 13 SYNONYM: ITERON; COMPND 14 ENGINEERED: YES; COMPND 15 MOL_ID: 3; COMPND 16 MOLECULE: PROTEIN (REPLICATION INITIATION PROTEIN); COMPND 17 CHAIN: C; COMPND 18 SYNONYM: REPE54; COMPND 19 ENGINEERED: YES; COMPND 20 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 MOL_ID: 2; SOURCE 4 SYNTHETIC: YES; SOURCE 5 MOL_ID: 3; SOURCE 6 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 7 ORGANISM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 10 OTHER_DETAILS: HIS-TAGGED PROTEIN KEYWDS REPLICATION INITIATOR, DNA-BINDING, REPLICATION-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR H.KOMORI,F.MATSUNAGA,Y.HIGUCHI,M.ISHIAI,C.WADA,K.MIKI REVDAT 7 27-DEC-23 1REP 1 REMARK SEQADV LINK REVDAT 6 14-MAR-18 1REP 1 SEQADV REVDAT 5 29-NOV-17 1REP 1 HELIX REVDAT 4 24-FEB-09 1REP 1 VERSN REVDAT 3 01-APR-03 1REP 1 JRNL REVDAT 2 17-APR-00 1REP 1 JRNL SHEET REVDAT 1 09-FEB-00 1REP 0 JRNL AUTH H.KOMORI,F.MATSUNAGA,Y.HIGUCHI,M.ISHIAI,C.WADA,K.MIKI JRNL TITL CRYSTAL STRUCTURE OF A PROKARYOTIC REPLICATION INITIATOR JRNL TITL 2 PROTEIN BOUND TO DNA AT 2.6 A RESOLUTION. JRNL REF EMBO J. V. 18 4597 1999 JRNL REFN ISSN 0261-4189 JRNL PMID 10469640 JRNL DOI 10.1093/EMBOJ/18.17.4597 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH H.KOMORI,N.SASAI,F.MATSUNAGA,C.WADA,K.MIKI REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY X-RAY DIFFRACTION STUDIES OF REMARK 1 TITL 2 A REPLICATION INITIATOR PROTEIN (REPE54) OF THE MINI-F REMARK 1 TITL 3 PLASMID COMPLEXED WITH ITERON DNA REMARK 1 REF J.BIOCHEM.(TOKYO) V. 125 24 1999 REMARK 1 REFN ISSN 0021-924X REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 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) (%) : 87.8 REMARK 3 NUMBER OF REFLECTIONS : 13738 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.213 REMARK 3 FREE R VALUE : 0.274 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 696 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 : 1780 REMARK 3 NUCLEIC ACID ATOMS : 855 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 20 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 30.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -26.40000 REMARK 3 B22 (A**2) : -32.60000 REMARK 3 B33 (A**2) : -45.80000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -31.40000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.181 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.960 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) : 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 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 : DNA-RNA_REP.PARAM REMARK 3 PARAMETER FILE 2 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 2 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1REP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB. REMARK 100 THE DEPOSITION ID IS D_1000000974. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : PHOTON FACTORY REMARK 200 BEAMLINE : BL-18B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15208 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.600 REMARK 200 RESOLUTION RANGE LOW (A) : 35.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.7 REMARK 200 DATA REDUNDANCY : 3.800 REMARK 200 R MERGE (I) : 0.03500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 34.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 65.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.29800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIRAS REMARK 200 SOFTWARE USED: CCP4 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.12 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 12 % PEG 400, 200 MM MGCL2, 100 MM REMARK 280 TRIS-HCL, PH8.0, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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 54.21750 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.92650 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 54.21750 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 40.92650 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: TRIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C 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 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 DT A 22 REMARK 465 DT B 44 REMARK 465 MET C 1 REMARK 465 ALA C 2 REMARK 465 GLU C 3 REMARK 465 THR C 4 REMARK 465 ALA C 5 REMARK 465 VAL C 6 REMARK 465 ILE C 7 REMARK 465 ASN C 8 REMARK 465 HIS C 9 REMARK 465 LYS C 10 REMARK 465 LYS C 11 REMARK 465 ARG C 12 REMARK 465 LYS C 13 REMARK 465 ASN C 14 REMARK 465 ASP C 50 REMARK 465 GLY C 51 REMARK 465 THR C 52 REMARK 465 LEU C 53 REMARK 465 GLN C 54 REMARK 465 GLU C 55 REMARK 465 ARG C 98 REMARK 465 PRO C 99 REMARK 465 GLU C 100 REMARK 465 GLU C 101 REMARK 465 ASP C 102 REMARK 465 ALA C 103 REMARK 465 GLY C 104 REMARK 465 ASP C 105 REMARK 465 GLU C 106 REMARK 465 LYS C 107 REMARK 465 GLY C 108 REMARK 465 TYR C 109 REMARK 465 SER C 247 REMARK 465 MET C 248 REMARK 465 THR C 249 REMARK 465 THR C 250 REMARK 465 GLY C 251 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 DC A 1 O4' - C1' - N1 ANGL. DEV. = 1.8 DEGREES REMARK 500 DC A 2 O4' - C1' - N1 ANGL. DEV. = 3.5 DEGREES REMARK 500 DG B 25 O4' - C1' - N9 ANGL. DEV. = 2.5 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 ASP C 44 -73.37 -41.75 REMARK 500 ILE C 59 79.02 -64.28 REMARK 500 SER C 88 8.28 -65.76 REMARK 500 HIS C 130 79.57 -103.81 REMARK 500 LEU C 142 -12.67 68.57 REMARK 500 PHE C 208 -66.04 -105.00 REMARK 500 ASN C 217 20.05 -70.95 REMARK 500 SER C 218 -25.40 -147.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 DC A 1 0.06 SIDE CHAIN REMARK 500 DC A 2 0.06 SIDE CHAIN 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 C 252 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 23 O REMARK 620 2 GLU C 77 OE1 91.7 REMARK 620 3 ASP C 81 OD1 178.8 87.2 REMARK 620 4 HOH C 253 O 97.1 170.6 84.0 REMARK 620 5 HOH C 254 O 87.5 86.1 91.8 97.6 REMARK 620 6 HOH C 255 O 91.0 87.8 89.6 88.6 173.7 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG C 252 DBREF 1REP C 1 251 UNP P03856 REPE1_ECOLI 1 251 DBREF 1REP A 1 22 PDB 1REP 1REP 1 22 DBREF 1REP B 23 44 PDB 1REP 1REP 23 44 SEQADV 1REP PRO C 118 UNP P03856 ARG 118 ENGINEERED MUTATION SEQRES 1 A 22 DC DC DT DG DT DG DA DC DA DA DA DT DT SEQRES 2 A 22 DG DC DC DC DT DC DA DG DT SEQRES 1 B 22 DC DT DG DA DG DG DG DC DA DA DT DT DT SEQRES 2 B 22 DG DT DC DA DC DA DG DG DT SEQRES 1 C 251 MET ALA GLU THR ALA VAL ILE ASN HIS LYS LYS ARG LYS SEQRES 2 C 251 ASN SER PRO ARG ILE VAL GLN SER ASN ASP LEU THR GLU SEQRES 3 C 251 ALA ALA TYR SER LEU SER ARG ASP GLN LYS ARG MET LEU SEQRES 4 C 251 TYR LEU PHE VAL ASP GLN ILE ARG LYS SER ASP GLY THR SEQRES 5 C 251 LEU GLN GLU HIS ASP GLY ILE CYS GLU ILE HIS VAL ALA SEQRES 6 C 251 LYS TYR ALA GLU ILE PHE GLY LEU THR SER ALA GLU ALA SEQRES 7 C 251 SER LYS ASP ILE ARG GLN ALA LEU LYS SER PHE ALA GLY SEQRES 8 C 251 LYS GLU VAL VAL PHE TYR ARG PRO GLU GLU ASP ALA GLY SEQRES 9 C 251 ASP GLU LYS GLY TYR GLU SER PHE PRO TRP PHE ILE LYS SEQRES 10 C 251 PRO ALA HIS SER PRO SER ARG GLY LEU TYR SER VAL HIS SEQRES 11 C 251 ILE ASN PRO TYR LEU ILE PRO PHE PHE ILE GLY LEU GLN SEQRES 12 C 251 ASN ARG PHE THR GLN PHE ARG LEU SER GLU THR LYS GLU SEQRES 13 C 251 ILE THR ASN PRO TYR ALA MET ARG LEU TYR GLU SER LEU SEQRES 14 C 251 CYS GLN TYR ARG LYS PRO ASP GLY SER GLY ILE VAL SER SEQRES 15 C 251 LEU LYS ILE ASP TRP ILE ILE GLU ARG TYR GLN LEU PRO SEQRES 16 C 251 GLN SER TYR GLN ARG MET PRO ASP PHE ARG ARG ARG PHE SEQRES 17 C 251 LEU GLN VAL CYS VAL ASN GLU ILE ASN SER ARG THR PRO SEQRES 18 C 251 MET ARG LEU SER TYR ILE GLU LYS LYS LYS GLY ARG GLN SEQRES 19 C 251 THR THR HIS ILE VAL PHE SER PHE ARG ASP ILE THR SER SEQRES 20 C 251 MET THR THR GLY HET MG C 252 1 HETNAM MG MAGNESIUM ION FORMUL 4 MG MG 2+ FORMUL 5 HOH *20(H2 O) HELIX 1 A1N ASN C 22 GLU C 26 1 5 HELIX 2 A2N ARG C 33 ARG C 47 1 15 HELIX 3 A3N VAL C 64 ILE C 70 1 7 HELIX 4 A4N SER C 75 LYS C 87 1 13 HELIX 5 A5N PRO C 133 PHE C 139 1 7 HELIX 6 A1C LEU C 151 THR C 154 1 4 HELIX 7 A2C PRO C 160 CYS C 170 1 11 HELIX 8 A3C ILE C 185 ARG C 191 1 7 HELIX 9 A4C ARG C 200 ARG C 219 1 20 SHEET 1 B1N 1 ARG C 17 GLN C 20 0 SHEET 1 B1C 1 THR C 147 ARG C 150 0 SHEET 1 B2A 1 GLU C 93 VAL C 95 0 SHEET 1 B2B 1 SER C 111 PRO C 113 0 SHEET 1 B2N 1 ILE C 59 HIS C 63 0 SHEET 1 B4N 1 LEU C 126 HIS C 130 0 SHEET 1 B3N 1 HIS C 120 SER C 123 0 SHEET 1 B2C 1 SER C 178 LYS C 184 0 SHEET 1 B4C 1 THR C 235 ASP C 244 0 SHEET 1 B3C 1 MET C 222 LYS C 230 0 LINK O HOH A 23 MG MG C 252 1555 1555 1.95 LINK OE1 GLU C 77 MG MG C 252 1555 1555 2.10 LINK OD1 ASP C 81 MG MG C 252 1555 1555 2.12 LINK MG MG C 252 O HOH C 253 1555 1555 1.94 LINK MG MG C 252 O HOH C 254 1555 1555 1.91 LINK MG MG C 252 O HOH C 255 1555 1555 1.99 SITE 1 AC1 6 HOH A 23 GLU C 77 ASP C 81 HOH C 253 SITE 2 AC1 6 HOH C 254 HOH C 255 CRYST1 108.435 81.853 73.891 90.00 121.53 90.00 C 1 2 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 0.009222 0.000000 0.005657 0.00000 SCALE2 0.000000 0.012217 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015877 0.00000