PDB Short entry for 1G9Y HEADER HYDROLASE/DNA 28-NOV-00 1G9Y TITLE HOMING ENDONUCLEASE I-CREI / DNA SUBSTRATE COMPLEX WITH CALCIUM COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-D(*CP*GP*AP*AP*AP*CP*TP*GP*TP*CP*TP*CP*AP*CP*GP*AP*CP*GP COMPND 3 *TP*TP*TP*TP*GP*C)-3'; COMPND 4 CHAIN: C; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: 5'-D(*GP*CP*AP*AP*AP*AP*CP*GP*TP*CP*GP*TP*GP*AP*GP*AP*CP*AP COMPND 8 *GP*TP*TP*TP*CP*G)-3'; COMPND 9 CHAIN: D; COMPND 10 ENGINEERED: YES; COMPND 11 MOL_ID: 3; COMPND 12 MOLECULE: DNA ENDONUCLEASE I-CREI; COMPND 13 CHAIN: A, B; COMPND 14 SYNONYM: I-CREI HOMING ENDONUCLEASE; COMPND 15 EC: 3.1.-.-; COMPND 16 ENGINEERED: 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: CHLAMYDOMONAS REINHARDTII; SOURCE 7 ORGANISM_TAXID: 3055; SOURCE 8 GENE: CR.LSU INTRON OF CHOROPLAST 23S RRNA GENE; SOURCE 9 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 10 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 11 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PI-CREI KEYWDS LAGLIDADG, HOMING ENDONUCLEASE, NUCLEASE MECHANISM, GROUP I INTRON, KEYWDS 2 HYDROLASE-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR B.CHEVALIER,R.J.MONNAT,B.L.STODDARD REVDAT 4 09-AUG-23 1G9Y 1 REMARK LINK REVDAT 3 24-FEB-09 1G9Y 1 VERSN REVDAT 2 01-APR-03 1G9Y 1 JRNL REVDAT 1 02-APR-01 1G9Y 0 JRNL AUTH B.S.CHEVALIER,R.J.MONNAT JR.,B.L.STODDARD JRNL TITL THE HOMING ENDONUCLEASE I-CREI USES THREE METALS, ONE OF JRNL TITL 2 WHICH IS SHARED BETWEEN THE TWO ACTIVE SITES. JRNL REF NAT.STRUCT.BIOL. V. 8 312 2001 JRNL REFN ISSN 1072-8368 JRNL PMID 11276249 JRNL DOI 10.1038/86181 REMARK 2 REMARK 2 RESOLUTION. 2.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.99 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 922399.050 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.5 REMARK 3 NUMBER OF REFLECTIONS : 30037 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) : 0.207 REMARK 3 FREE R VALUE : 0.260 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1544 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.05 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.09 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 73.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1077 REMARK 3 BIN R VALUE (WORKING SET) : 0.3440 REMARK 3 BIN FREE R VALUE : 0.4210 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 62 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.054 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2474 REMARK 3 NUCLEIC ACID ATOMS : 978 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 435 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 33.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 37.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.67000 REMARK 3 B22 (A**2) : -7.20000 REMARK 3 B33 (A**2) : 1.53000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -4.04000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.26 REMARK 3 ESD FROM SIGMAA (A) : 0.26 REMARK 3 LOW RESOLUTION CUTOFF (A) : 50.0 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.34 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.32 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 20.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.140 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.040 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.940 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.670 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.490 ; 2.500 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 : DNA-RNA_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : WATER.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 THE STRUCTURE CONTAINS AN AVERAGE OF THE TWO POSSIBLE ORIENTATIONS REMARK 3 OF REMARK 3 THE DNA SUBSTRATE (SEE PAPER). THIS PDB ENTRY CONTAINS ONLY ONE REMARK 3 DNA REMARK 3 ORIENTATION FOR CLARITY. REMARK 4 REMARK 4 1G9Y COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-DEC-00. REMARK 100 THE DEPOSITION ID IS D_1000012417. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-MAY-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 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 : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : YALE MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30037 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.050 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.4 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : 5.50000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 13.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.09 REMARK 200 COMPLETENESS FOR SHELL (%) : 81.7 REMARK 200 DATA REDUNDANCY IN SHELL : 1.50 REMARK 200 R MERGE FOR SHELL (I) : 0.36000 REMARK 200 R SYM FOR SHELL (I) : 36.0000 REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: EPMR REMARK 200 STARTING MODEL: CRE/DNA (PDB ENTRY 1BP7) REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.08 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25% PEG 400, PH 6.5, VAPOR DIFFUSION, REMARK 280 HANGING DROP 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 33.90000 REMARK 290 SMTRY3 2 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: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D, 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 ASN A 30 112.86 -162.39 REMARK 500 LYS A 36 15.01 59.69 REMARK 500 ARG A 70 52.53 -142.31 REMARK 500 LYS A 116 28.05 -79.78 REMARK 500 GLU A 117 -23.13 -143.68 REMARK 500 LYS A 142 -64.07 -122.07 REMARK 500 ARG A 149 27.37 -68.83 REMARK 500 LYS B 236 18.12 57.89 REMARK 500 ARG B 270 64.77 -150.78 REMARK 500 GLU B 317 -84.62 -80.79 REMARK 500 LYS B 342 -30.12 -138.88 REMARK 500 ARG B 349 25.58 -63.46 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 DG C 418 0.06 SIDE CHAIN REMARK 500 DA D 514 0.07 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 CA C 803 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DC C 414 O3' REMARK 620 2 DG C 415 OP2 59.4 REMARK 620 3 DA D 514 O3' 100.8 104.9 REMARK 620 4 DG D 515 OP2 109.7 156.5 54.3 REMARK 620 5 ASP A 20 OD1 144.2 84.9 85.5 102.6 REMARK 620 6 ASP B 220 OD1 90.2 112.2 141.6 87.3 106.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 802 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DC C 414 OP1 REMARK 620 2 HOH D 24 O 84.8 REMARK 620 3 DG D 515 OP2 106.3 69.0 REMARK 620 4 GLY A 19 O 176.5 98.6 75.8 REMARK 620 5 HOH A 804 O 88.4 77.6 141.7 91.6 REMARK 620 6 ASP B 220 OD1 89.6 150.9 85.3 87.8 130.9 REMARK 620 7 ASP B 220 OD2 80.3 153.9 135.9 96.2 80.6 50.8 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 801 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DG C 415 OP2 REMARK 620 2 HOH C 805 O 72.4 REMARK 620 3 DA D 514 OP1 108.8 89.9 REMARK 620 4 ASP A 20 OD1 80.6 151.8 91.4 REMARK 620 5 ASP A 20 OD2 129.7 157.7 79.8 49.2 REMARK 620 6 GLY B 219 O 81.6 100.0 167.6 83.5 88.3 REMARK 620 7 HOH B 803 O 150.8 81.7 83.7 126.5 77.6 90.2 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 801 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 802 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA C 803 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1G9Z RELATED DB: PDB REMARK 900 LAGLIDADG HOMING ENDONUCLEASE I-CREI / DNA PRODUCT COMPLEX WITH REMARK 900 MAGNESIUM DBREF 1G9Y A 2 153 UNP P05725 DNE1_CHLRE 2 153 DBREF 1G9Y B 202 353 UNP P05725 DNE1_CHLRE 2 153 DBREF 1G9Y C 401 424 PDB 1G9Y 1G9Y 401 424 DBREF 1G9Y D 501 524 PDB 1G9Y 1G9Y 501 524 SEQADV 1G9Y THR A 42 UNP P05725 ALA 42 SEE REMARK 999 SEQADV 1G9Y GLU A 110 UNP P05725 TRP 110 SEE REMARK 999 SEQADV 1G9Y GLN A 111 UNP P05725 ARG 111 SEE REMARK 999 SEQADV 1G9Y THR B 242 UNP P05725 ALA 42 SEE REMARK 999 SEQADV 1G9Y GLU B 310 UNP P05725 TRP 110 SEE REMARK 999 SEQADV 1G9Y GLN B 311 UNP P05725 ARG 111 SEE REMARK 999 SEQRES 1 C 24 DC DG DA DA DA DC DT DG DT DC DT DC DA SEQRES 2 C 24 DC DG DA DC DG DT DT DT DT DG DC SEQRES 1 D 24 DG DC DA DA DA DA DC DG DT DC DG DT DG SEQRES 2 D 24 DA DG DA DC DA DG DT DT DT DC DG SEQRES 1 A 152 ASN THR LYS TYR ASN LYS GLU PHE LEU LEU TYR LEU ALA SEQRES 2 A 152 GLY PHE VAL ASP GLY ASP GLY SER ILE ILE ALA GLN ILE SEQRES 3 A 152 LYS PRO ASN GLN SER TYR LYS PHE LYS HIS GLN LEU SER SEQRES 4 A 152 LEU THR PHE GLN VAL THR GLN LYS THR GLN ARG ARG TRP SEQRES 5 A 152 PHE LEU ASP LYS LEU VAL ASP GLU ILE GLY VAL GLY TYR SEQRES 6 A 152 VAL ARG ASP ARG GLY SER VAL SER ASP TYR ILE LEU SER SEQRES 7 A 152 GLU ILE LYS PRO LEU HIS ASN PHE LEU THR GLN LEU GLN SEQRES 8 A 152 PRO PHE LEU LYS LEU LYS GLN LYS GLN ALA ASN LEU VAL SEQRES 9 A 152 LEU LYS ILE ILE GLU GLN LEU PRO SER ALA LYS GLU SER SEQRES 10 A 152 PRO ASP LYS PHE LEU GLU VAL CYS THR TRP VAL ASP GLN SEQRES 11 A 152 ILE ALA ALA LEU ASN ASP SER LYS THR ARG LYS THR THR SEQRES 12 A 152 SER GLU THR VAL ARG ALA VAL LEU ASP SEQRES 1 B 152 ASN THR LYS TYR ASN LYS GLU PHE LEU LEU TYR LEU ALA SEQRES 2 B 152 GLY PHE VAL ASP GLY ASP GLY SER ILE ILE ALA GLN ILE SEQRES 3 B 152 LYS PRO ASN GLN SER TYR LYS PHE LYS HIS GLN LEU SER SEQRES 4 B 152 LEU THR PHE GLN VAL THR GLN LYS THR GLN ARG ARG TRP SEQRES 5 B 152 PHE LEU ASP LYS LEU VAL ASP GLU ILE GLY VAL GLY TYR SEQRES 6 B 152 VAL ARG ASP ARG GLY SER VAL SER ASP TYR ILE LEU SER SEQRES 7 B 152 GLU ILE LYS PRO LEU HIS ASN PHE LEU THR GLN LEU GLN SEQRES 8 B 152 PRO PHE LEU LYS LEU LYS GLN LYS GLN ALA ASN LEU VAL SEQRES 9 B 152 LEU LYS ILE ILE GLU GLN LEU PRO SER ALA LYS GLU SER SEQRES 10 B 152 PRO ASP LYS PHE LEU GLU VAL CYS THR TRP VAL ASP GLN SEQRES 11 B 152 ILE ALA ALA LEU ASN ASP SER LYS THR ARG LYS THR THR SEQRES 12 B 152 SER GLU THR VAL ARG ALA VAL LEU ASP HET CA C 803 1 HET CA A 801 1 HET CA B 802 1 HETNAM CA CALCIUM ION FORMUL 5 CA 3(CA 2+) FORMUL 8 HOH *435(H2 O) HELIX 1 1 ASN A 6 ASP A 20 1 15 HELIX 2 2 ARG A 51 GLY A 63 1 13 HELIX 3 3 GLU A 80 GLN A 92 1 13 HELIX 4 4 PRO A 93 LEU A 95 5 3 HELIX 5 5 LYS A 98 LYS A 116 1 19 HELIX 6 6 SER A 118 ASN A 136 1 19 HELIX 7 7 THR A 144 ARG A 149 1 6 HELIX 8 8 ASN B 206 ASP B 220 1 15 HELIX 9 9 ARG B 251 GLY B 263 1 13 HELIX 10 10 GLU B 280 GLN B 292 1 13 HELIX 11 11 PRO B 293 LEU B 295 5 3 HELIX 12 12 LYS B 298 LEU B 312 1 15 HELIX 13 13 GLN B 311 SER B 318 1 8 HELIX 14 14 SER B 318 ASN B 336 1 19 HELIX 15 15 THR B 344 ARG B 349 1 6 SHEET 1 A 4 GLY A 21 PRO A 29 0 SHEET 2 A 4 HIS A 37 LYS A 48 -1 O GLN A 38 N LYS A 28 SHEET 3 A 4 VAL A 73 LEU A 78 -1 N SER A 74 O GLN A 47 SHEET 4 A 4 TYR A 66 ARG A 70 -1 O TYR A 66 N ILE A 77 SHEET 1 B 4 GLY B 221 PRO B 229 0 SHEET 2 B 4 HIS B 237 LYS B 248 -1 N GLN B 238 O LYS B 228 SHEET 3 B 4 VAL B 273 LEU B 278 -1 N SER B 274 O GLN B 247 SHEET 4 B 4 TYR B 266 ARG B 270 -1 O TYR B 266 N ILE B 277 LINK O3' DC C 414 CA CA C 803 1555 1555 2.67 LINK OP1 DC C 414 CA CA B 802 1555 1555 2.33 LINK OP2 DG C 415 CA CA C 803 1555 1555 2.35 LINK OP2 DG C 415 CA CA A 801 1555 1555 2.33 LINK CA CA C 803 O3' DA D 514 1555 1555 2.91 LINK CA CA C 803 OP2 DG D 515 1555 1555 2.55 LINK CA CA C 803 OD1 ASP A 20 1555 1555 2.44 LINK CA CA C 803 OD1 ASP B 220 1555 1555 2.22 LINK O HOH C 805 CA CA A 801 1555 1555 2.55 LINK O HOH D 24 CA CA B 802 1555 1555 2.71 LINK OP1 DA D 514 CA CA A 801 1555 1555 2.28 LINK OP2 DG D 515 CA CA B 802 1555 1555 2.21 LINK O GLY A 19 CA CA B 802 1555 1555 2.33 LINK OD1 ASP A 20 CA CA A 801 1555 1555 2.64 LINK OD2 ASP A 20 CA CA A 801 1555 1555 2.61 LINK CA CA A 801 O GLY B 219 1555 1555 2.33 LINK CA CA A 801 O HOH B 803 1555 1555 2.49 LINK O HOH A 804 CA CA B 802 1555 1555 2.44 LINK OD1 ASP B 220 CA CA B 802 1555 1555 2.64 LINK OD2 ASP B 220 CA CA B 802 1555 1555 2.44 SITE 1 AC1 7 ASP A 20 GLY B 219 HOH B 803 DG C 415 SITE 2 AC1 7 CA C 803 HOH C 805 DA D 514 SITE 1 AC2 7 GLY A 19 HOH A 804 ASP B 220 DC C 414 SITE 2 AC2 7 CA C 803 HOH D 24 DG D 515 SITE 1 AC3 8 ASP A 20 CA A 801 ASP B 220 CA B 802 SITE 2 AC3 8 DC C 414 DG C 415 DA D 514 DG D 515 CRYST1 43.200 67.800 88.300 90.00 91.60 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 0.023148 0.000000 0.000647 0.00000 SCALE2 0.000000 0.014749 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011329 0.00000