HEADER DNA 15-FEB-95 109D TITLE VARIABILITY IN DNA MINOR GROOVE WIDTH RECOGNISED BY LIGAND BINDING: TITLE 2 THE CRYSTAL STRUCTURE OF A BIS-BENZIMIDAZOLE COMPOUND BOUND TO THE TITLE 3 DNA DUPLEX D(CGCGAATTCGCG)2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES KEYWDS B-DNA, DOUBLE HELIX, COMPLEXED WITH DRUG, DNA EXPDTA X-RAY DIFFRACTION AUTHOR A.CZARNY,D.W.BOYKIN,A.A.WOOD,C.M.NUNN,S.NEIDLE,M.ZHAO,W.D.WILSON REVDAT 3 07-FEB-24 109D 1 REMARK LINK REVDAT 2 24-FEB-09 109D 1 VERSN REVDAT 1 08-MAY-95 109D 0 JRNL AUTH A.A.WOOD,C.M.NUNN,A.CZARNY,D.W.BOYKIN,S.NEIDLE JRNL TITL VARIABILITY IN DNA MINOR GROOVE WIDTH RECOGNISED BY LIGAND JRNL TITL 2 BINDING: THE CRYSTAL STRUCTURE OF A BIS-BENZIMIDAZOLE JRNL TITL 3 COMPOUND BOUND TO THE DNA DUPLEX D(CGCGAATTCGCG)2. JRNL REF NUCLEIC ACIDS RES. V. 23 3678 1995 JRNL REFN ISSN 0305-1048 JRNL PMID 7478996 JRNL DOI 10.1093/NAR/23.18.3678 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.CZARNY,D.W.BOYKIN,A.A.WOOD,C.M.NUNN,S.NEIDLE,M.ZHAO, REMARK 1 AUTH 2 W.D.WILSON REMARK 1 TITL ANALYSIS OF VAN DER WAALS AND ELECTROSTATIC CONTRIBUTIONS IN REMARK 1 TITL 2 THE INTERACTIONS OF MINOR GROOVE BINDING BENZIMIDAZOLES WITH REMARK 1 TITL 3 DNA REMARK 1 REF J.AM.CHEM.SOC. V. 117 4716 1995 REMARK 1 REFN ISSN 0002-7863 REMARK 1 REFERENCE 2 REMARK 1 AUTH J.R.QUINTANA,A.A.LIPANOV,R.E.DICKERSON REMARK 1 TITL LOW TEMPERATURE CRYSTALLOGRAPHIC ANALYSES OF THE BINDING OF REMARK 1 TITL 2 HOECHST 33258 TO THE DOUBLE HELICAL DNA DODECAMER REMARK 1 TITL 3 C-G-C-G-A-A-T-T-C-G-C-G REMARK 1 REF BIOCHEMISTRY V. 30 10294 1991 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 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 : 4016 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.197 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 0 REMARK 3 NUCLEIC ACID ATOMS : 486 REMARK 3 HETEROGEN ATOMS : 31 REMARK 3 SOLVENT ATOMS : 90 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) : 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) : 0.020 REMARK 3 BOND ANGLES (DEGREES) : 4.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 109D 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_1000170023. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : ENRAF-NONIUS REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : XENTRONICS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 87.0 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) : 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.88 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.23 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 12.29500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 32.88000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 20.22000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 32.88000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 12.29500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 20.22000 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 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: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 DC A 3 C3' DC A 3 C2' -0.052 REMARK 500 DG A 4 C5 DG A 4 N7 -0.041 REMARK 500 DA A 6 C6 DA A 6 N1 0.063 REMARK 500 DA A 6 N9 DA A 6 C4 0.042 REMARK 500 DG A 10 C5 DG A 10 N7 -0.037 REMARK 500 DA B 18 N1 DA B 18 C2 -0.114 REMARK 500 DA B 18 C2 DA B 18 N3 -0.157 REMARK 500 DA B 18 N3 DA B 18 C4 0.126 REMARK 500 DA B 18 C6 DA B 18 N1 -0.076 REMARK 500 DA B 18 C5 DA B 18 N7 -0.040 REMARK 500 DA B 18 N9 DA B 18 C4 0.099 REMARK 500 DG B 22 C5 DG B 22 N7 -0.043 REMARK 500 DG B 24 C5 DG B 24 N7 -0.043 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 DC A 1 O4' - C1' - N1 ANGL. DEV. = -4.5 DEGREES REMARK 500 DG A 2 C3' - O3' - P ANGL. DEV. = 8.9 DEGREES REMARK 500 DC A 3 P - O5' - C5' ANGL. DEV. = -11.2 DEGREES REMARK 500 DC A 3 O4' - C1' - C2' ANGL. DEV. = -6.0 DEGREES REMARK 500 DC A 3 O4' - C1' - N1 ANGL. DEV. = 5.0 DEGREES REMARK 500 DA A 6 O4' - C4' - C3' ANGL. DEV. = -3.5 DEGREES REMARK 500 DA A 6 C1' - O4' - C4' ANGL. DEV. = 6.6 DEGREES REMARK 500 DA A 6 O4' - C1' - C2' ANGL. DEV. = -6.0 DEGREES REMARK 500 DA A 6 O4' - C1' - N9 ANGL. DEV. = 3.1 DEGREES REMARK 500 DA A 6 C6 - N1 - C2 ANGL. DEV. = -13.1 DEGREES REMARK 500 DA A 6 N1 - C2 - N3 ANGL. DEV. = 7.4 DEGREES REMARK 500 DA A 6 N3 - C4 - C5 ANGL. DEV. = -4.9 DEGREES REMARK 500 DA A 6 C5 - C6 - N1 ANGL. DEV. = 6.8 DEGREES REMARK 500 DA A 6 C5 - N7 - C8 ANGL. DEV. = 3.5 DEGREES REMARK 500 DA A 6 N9 - C4 - C5 ANGL. DEV. = 2.4 DEGREES REMARK 500 DA A 6 C5 - C6 - N6 ANGL. DEV. = -6.3 DEGREES REMARK 500 DA A 6 C3' - O3' - P ANGL. DEV. = 9.7 DEGREES REMARK 500 DT A 7 O4' - C4' - C3' ANGL. DEV. = -3.5 DEGREES REMARK 500 DT A 7 O4' - C1' - N1 ANGL. DEV. = 5.2 DEGREES REMARK 500 DT A 7 C6 - N1 - C2 ANGL. DEV. = -3.2 DEGREES REMARK 500 DT A 7 N3 - C4 - C5 ANGL. DEV. = -5.7 DEGREES REMARK 500 DT A 7 C4 - C5 - C6 ANGL. DEV. = 6.0 DEGREES REMARK 500 DT A 7 N3 - C2 - O2 ANGL. DEV. = -6.6 DEGREES REMARK 500 DT A 7 C6 - C5 - C7 ANGL. DEV. = -6.2 DEGREES REMARK 500 DT A 8 O4' - C4' - C3' ANGL. DEV. = -2.7 DEGREES REMARK 500 DT A 8 N1 - C2 - N3 ANGL. DEV. = 3.8 DEGREES REMARK 500 DT A 8 C4 - C5 - C6 ANGL. DEV. = 4.8 DEGREES REMARK 500 DT A 8 N3 - C2 - O2 ANGL. DEV. = -4.2 DEGREES REMARK 500 DC A 11 O4' - C1' - N1 ANGL. DEV. = -6.9 DEGREES REMARK 500 DG A 12 O4' - C4' - C3' ANGL. DEV. = -2.9 DEGREES REMARK 500 DC B 13 C3' - O3' - P ANGL. DEV. = 7.9 DEGREES REMARK 500 DC B 15 O4' - C4' - C3' ANGL. DEV. = -3.2 DEGREES REMARK 500 DC B 15 O4' - C1' - C2' ANGL. DEV. = -5.0 DEGREES REMARK 500 DC B 15 O4' - C1' - N1 ANGL. DEV. = 2.6 DEGREES REMARK 500 DC B 15 C2 - N3 - C4 ANGL. DEV. = 4.1 DEGREES REMARK 500 DC B 15 N3 - C4 - C5 ANGL. DEV. = -3.5 DEGREES REMARK 500 DA B 17 C3' - O3' - P ANGL. DEV. = 11.5 DEGREES REMARK 500 DA B 18 C1' - O4' - C4' ANGL. DEV. = 8.2 DEGREES REMARK 500 DA B 18 O4' - C1' - C2' ANGL. DEV. = -10.7 DEGREES REMARK 500 DA B 18 C6 - N1 - C2 ANGL. DEV. = 14.4 DEGREES REMARK 500 DA B 18 N1 - C2 - N3 ANGL. DEV. = -8.4 DEGREES REMARK 500 DA B 18 C2 - N3 - C4 ANGL. DEV. = 6.3 DEGREES REMARK 500 DA B 18 N3 - C4 - C5 ANGL. DEV. = -5.4 DEGREES REMARK 500 DA B 18 C4 - C5 - C6 ANGL. DEV. = -5.3 DEGREES REMARK 500 DA B 18 N9 - C4 - C5 ANGL. DEV. = -5.5 DEGREES REMARK 500 DA B 18 N3 - C4 - N9 ANGL. DEV. = 10.8 DEGREES REMARK 500 DA B 18 N1 - C6 - N6 ANGL. DEV. = -11.7 DEGREES REMARK 500 DA B 18 C5 - C6 - N6 ANGL. DEV. = 13.3 DEGREES REMARK 500 DT B 19 P - O5' - C5' ANGL. DEV. = -12.6 DEGREES REMARK 500 DT B 19 O4' - C1' - N1 ANGL. DEV. = 2.6 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 65 ANGLE DEVIATIONS. 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 26 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 111 O REMARK 620 2 HOH A 112 O 93.1 REMARK 620 3 HOH A 113 O 95.5 87.0 REMARK 620 4 HOH A 114 O 174.7 91.3 87.5 REMARK 620 5 HOH A 115 O 90.9 171.6 85.3 85.0 REMARK 620 6 HOH A 116 O 93.6 91.1 170.7 83.5 96.0 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 IBB A 25 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 26 DBREF 109D A 1 12 PDB 109D 109D 1 12 DBREF 109D B 13 24 PDB 109D 109D 13 24 SEQRES 1 A 12 DC DG DC DG DA DA DT DT DC DG DC DG SEQRES 1 B 12 DC DG DC DG DA DA DT DT DC DG DC DG HET IBB A 25 30 HET MG A 26 1 HETNAM IBB 5-(2-IMIDAZOLINYL)-2-[2-(4-HYDROXYPHENYL)-5- HETNAM 2 IBB BENZIMIDAZOLYL]BENZIMIDAZOLE HETNAM MG MAGNESIUM ION FORMUL 3 IBB C23 H20 N6 O FORMUL 4 MG MG 2+ FORMUL 5 HOH *90(H2 O) LINK MG MG A 26 O HOH A 111 1555 1555 2.18 LINK MG MG A 26 O HOH A 112 1555 1555 2.19 LINK MG MG A 26 O HOH A 113 1555 1555 2.20 LINK MG MG A 26 O HOH A 114 1555 1555 2.31 LINK MG MG A 26 O HOH A 115 1555 1555 2.21 LINK MG MG A 26 O HOH A 116 1555 1555 2.25 SITE 1 AC1 12 DA A 5 DA A 6 DT A 7 DT A 8 SITE 2 AC1 12 DC A 9 HOH A 40 HOH A 62 HOH A 66 SITE 3 AC1 12 DA B 18 DT B 19 DT B 20 DC B 21 SITE 1 AC2 6 HOH A 111 HOH A 112 HOH A 113 HOH A 114 SITE 2 AC2 6 HOH A 115 HOH A 116 CRYST1 24.590 40.440 65.760 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 0.040667 0.000000 0.000000 0.00000 SCALE2 0.000000 0.024728 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015207 0.00000