HEADER DNA 17-OCT-92 1DA1 TITLE STRUCTURAL CHARACTERISATION OF THE BROMOURACIL-GUANINE BASE PAIR TITLE 2 MISMATCH IN A Z-DNA FRAGMENT COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*(BRU)P*GP*CP*GP*CP*G)-3'); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES KEYWDS Z-DNA, DOUBLE HELIX, MODIFIED, MISMATCHED, DNA EXPDTA X-RAY DIFFRACTION AUTHOR T.BROWN,G.KNEALE,W.N.HUNTER,O.KENNARD REVDAT 4 07-FEB-24 1DA1 1 REMARK LINK REVDAT 3 24-FEB-09 1DA1 1 VERSN REVDAT 2 01-APR-03 1DA1 1 JRNL REVDAT 1 15-JUL-93 1DA1 0 JRNL AUTH T.BROWN,G.KNEALE,W.N.HUNTER,O.KENNARD JRNL TITL STRUCTURAL CHARACTERISATION OF THE BROMOURACIL.GUANINE BASE JRNL TITL 2 PAIR MISMATCH IN A Z-DNA FRAGMENT. JRNL REF NUCLEIC ACIDS RES. V. 14 1801 1986 JRNL REFN ISSN 0305-1048 JRNL PMID 3951996 JRNL DOI 10.1093/NAR/14.4.1801 REMARK 2 REMARK 2 RESOLUTION. 2.25 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NUCLSQ REMARK 3 AUTHORS : WESTHOF,DUMAS,MORAS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.25 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 1105 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 + TEST SET) : 0.156 REMARK 3 R VALUE (WORKING SET) : NULL 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 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 242 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 67 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 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 SUGAR-BASE BOND DISTANCE (A) : NULL ; NULL REMARK 3 SUGAR-BASE BOND ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 PHOSPHATE BONDS DISTANCE (A) : NULL ; NULL REMARK 3 PHOSPHATE BOND ANGLE, H-BOND (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION CONTACT (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION CONTACT (A) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 SUGAR-BASE BONDS (A**2) : NULL ; NULL REMARK 3 SUGAR-BASE ANGLES (A**2) : NULL ; NULL REMARK 3 PHOSPHATE BONDS (A**2) : NULL ; NULL REMARK 3 PHOSPHATE BOND ANGLE, H-BOND (A**2) : NULL ; NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1DA1 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_1000172696. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 277.00 REMARK 200 PH : 8.20 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : DIFFRACTOMETER REMARK 200 DETECTOR MANUFACTURER : SYNTEX P21 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 1105 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.250 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL 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: 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 (%): 32.72 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.83 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.20, VAPOR DIFFUSION, TEMPERATURE REMARK 280 277.00K 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 8.97000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 24.97500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 15.42500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 24.97500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 8.97000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 15.42500 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: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O HOH B 29 O HOH B 60 2.08 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O5' BRU B 7 O HOH B 61 2555 2.16 REMARK 500 REMARK 500 REMARK: NULL 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 DG A 2 P DG A 2 OP1 0.108 REMARK 500 DG A 2 P DG A 2 O5' 0.144 REMARK 500 DG A 2 O5' DG A 2 C5' 0.134 REMARK 500 DG A 2 C5' DG A 2 C4' 0.095 REMARK 500 DG A 2 C4' DG A 2 C3' 0.132 REMARK 500 DG A 2 C2' DG A 2 C1' 0.077 REMARK 500 DG A 2 O4' DG A 2 C1' 0.135 REMARK 500 DC A 3 P DC A 3 O5' 0.160 REMARK 500 DC A 3 C4' DC A 3 C3' 0.064 REMARK 500 DC A 3 C2' DC A 3 C1' 0.128 REMARK 500 DG A 4 P DG A 4 O5' 0.135 REMARK 500 DG A 4 C5' DG A 4 C4' 0.096 REMARK 500 DG A 4 C4' DG A 4 C3' 0.120 REMARK 500 DG A 4 C2' DG A 4 C1' 0.083 REMARK 500 DG A 4 O4' DG A 4 C1' 0.130 REMARK 500 DC A 5 P DC A 5 O5' 0.070 REMARK 500 DC A 5 C4' DC A 5 C3' 0.114 REMARK 500 DC A 5 C2' DC A 5 C1' 0.123 REMARK 500 DC A 5 O4' DC A 5 C1' 0.102 REMARK 500 DG A 6 P DG A 6 OP1 0.117 REMARK 500 DG A 6 P DG A 6 O5' 0.105 REMARK 500 DG A 6 O5' DG A 6 C5' 0.139 REMARK 500 DG A 6 C4' DG A 6 C3' 0.147 REMARK 500 DG A 6 O4' DG A 6 C1' 0.144 REMARK 500 DG B 8 P DG B 8 OP1 0.108 REMARK 500 DG B 8 P DG B 8 O5' 0.119 REMARK 500 DG B 8 O5' DG B 8 C5' 0.106 REMARK 500 DG B 8 C5' DG B 8 C4' 0.072 REMARK 500 DG B 8 C4' DG B 8 C3' 0.140 REMARK 500 DG B 8 C2' DG B 8 C1' 0.086 REMARK 500 DG B 8 O4' DG B 8 C1' 0.144 REMARK 500 DC B 9 P DC B 9 O5' 0.155 REMARK 500 DC B 9 C4' DC B 9 C3' 0.086 REMARK 500 DC B 9 C2' DC B 9 C1' 0.137 REMARK 500 DC B 9 O4' DC B 9 C1' 0.070 REMARK 500 DG B 10 P DG B 10 OP1 0.113 REMARK 500 DG B 10 P DG B 10 O5' 0.106 REMARK 500 DG B 10 O5' DG B 10 C5' 0.152 REMARK 500 DG B 10 C4' DG B 10 C3' 0.153 REMARK 500 DG B 10 C2' DG B 10 C1' 0.118 REMARK 500 DG B 10 O4' DG B 10 C1' 0.100 REMARK 500 DG B 10 O3' DC B 11 P 0.134 REMARK 500 DC B 11 O5' DC B 11 C5' 0.115 REMARK 500 DC B 11 C4' DC B 11 C3' 0.112 REMARK 500 DC B 11 C2' DC B 11 C1' 0.119 REMARK 500 DC B 11 O4' DC B 11 C1' 0.097 REMARK 500 DG B 12 P DG B 12 O5' 0.133 REMARK 500 DG B 12 O5' DG B 12 C5' 0.132 REMARK 500 DG B 12 C5' DG B 12 C4' 0.087 REMARK 500 DG B 12 C4' DG B 12 C3' 0.134 REMARK 500 REMARK 500 THIS ENTRY HAS 51 BOND DEVIATIONS. 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 DG A 2 C4' - C3' - C2' ANGL. DEV. = 5.9 DEGREES REMARK 500 DG A 2 C3' - C2' - C1' ANGL. DEV. = -5.5 DEGREES REMARK 500 DG A 2 O4' - C1' - C2' ANGL. DEV. = 7.2 DEGREES REMARK 500 DG A 2 O4' - C1' - N9 ANGL. DEV. = 1.9 DEGREES REMARK 500 DC A 3 O4' - C4' - C3' ANGL. DEV. = 3.8 DEGREES REMARK 500 DC A 3 C5' - C4' - O4' ANGL. DEV. = 9.1 DEGREES REMARK 500 DC A 3 O4' - C1' - C2' ANGL. DEV. = 3.4 DEGREES REMARK 500 DC A 3 O4' - C1' - N1 ANGL. DEV. = 9.5 DEGREES REMARK 500 DG A 4 O4' - C4' - C3' ANGL. DEV. = 4.5 DEGREES REMARK 500 DG A 4 C5' - C4' - C3' ANGL. DEV. = 14.0 DEGREES REMARK 500 DG A 4 O4' - C1' - C2' ANGL. DEV. = 6.6 DEGREES REMARK 500 DG A 4 C3' - O3' - P ANGL. DEV. = 16.0 DEGREES REMARK 500 DC A 5 O4' - C1' - C2' ANGL. DEV. = 3.9 DEGREES REMARK 500 DC A 5 O4' - C1' - N1 ANGL. DEV. = 3.0 DEGREES REMARK 500 DG A 6 C3' - C2' - C1' ANGL. DEV. = -5.7 DEGREES REMARK 500 DG A 6 O4' - C1' - C2' ANGL. DEV. = 6.8 DEGREES REMARK 500 DG A 6 O4' - C1' - N9 ANGL. DEV. = 3.2 DEGREES REMARK 500 DG B 8 C4' - C3' - C2' ANGL. DEV. = 6.5 DEGREES REMARK 500 DG B 8 C3' - C2' - C1' ANGL. DEV. = -5.0 DEGREES REMARK 500 DG B 8 O4' - C1' - C2' ANGL. DEV. = 7.5 DEGREES REMARK 500 DC B 9 O5' - P - OP2 ANGL. DEV. = 7.7 DEGREES REMARK 500 DC B 9 C3' - C2' - C1' ANGL. DEV. = -5.8 DEGREES REMARK 500 DC B 9 O4' - C1' - N1 ANGL. DEV. = 5.7 DEGREES REMARK 500 DG B 10 O4' - C4' - C3' ANGL. DEV. = 4.1 DEGREES REMARK 500 DG B 10 O4' - C1' - C2' ANGL. DEV. = 7.5 DEGREES REMARK 500 DC B 11 OP1 - P - OP2 ANGL. DEV. = -9.2 DEGREES REMARK 500 DC B 11 O4' - C1' - C2' ANGL. DEV. = 4.5 DEGREES REMARK 500 DC B 11 O4' - C1' - N1 ANGL. DEV. = 5.7 DEGREES REMARK 500 DG B 12 O4' - C1' - C2' ANGL. DEV. = 4.7 DEGREES REMARK 500 DG B 12 O4' - C1' - N9 ANGL. DEV. = 4.2 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 13 DBREF 1DA1 A 1 6 PDB 1DA1 1DA1 1 6 DBREF 1DA1 B 7 12 PDB 1DA1 1DA1 7 12 SEQRES 1 A 6 BRU DG DC DG DC DG SEQRES 1 B 6 BRU DG DC DG DC DG MODRES 1DA1 BRU A 1 DU MODRES 1DA1 BRU B 7 DU HET BRU A 1 17 HET BRU B 7 17 HET MG B 13 1 HETNAM BRU 5-BROMO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE HETNAM MG MAGNESIUM ION FORMUL 1 BRU 2(C9 H12 BR N2 O8 P) FORMUL 3 MG MG 2+ FORMUL 4 HOH *67(H2 O) LINK O3' BRU A 1 P DG A 2 1555 1555 1.60 LINK O3' BRU B 7 P DG B 8 1555 1555 1.60 LINK MG MG B 13 O HOH B 66 1555 1555 2.05 SITE 1 AC1 2 DG B 12 HOH B 66 CRYST1 17.940 30.850 49.950 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 0.055741 0.000000 0.000000 0.00000 SCALE2 0.000000 0.032415 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020020 0.00000 HETATM 1 N1 BRU A 1 8.294 0.126 8.731 1.00 7.25 N HETATM 2 C2 BRU A 1 7.348 1.114 8.506 1.00 7.52 C HETATM 3 N3 BRU A 1 7.836 2.397 8.452 1.00 7.48 N HETATM 4 C4 BRU A 1 9.160 2.783 8.596 1.00 7.97 C HETATM 5 C5 BRU A 1 10.088 1.700 8.801 1.00 7.63 C HETATM 6 C6 BRU A 1 9.628 0.453 8.846 1.00 7.24 C HETATM 7 O2 BRU A 1 6.159 0.882 8.402 1.00 7.61 O HETATM 8 O4 BRU A 1 9.479 3.970 8.536 1.00 8.85 O HETATM 9 BR BRU A 1 11.853 2.011 9.031 1.00 11.62 BR HETATM 10 C1' BRU A 1 7.847 -1.280 8.781 1.00 6.34 C HETATM 11 C2' BRU A 1 8.005 -1.974 7.283 1.00 6.05 C HETATM 12 C3' BRU A 1 8.048 -3.440 7.707 1.00 5.26 C HETATM 13 C4' BRU A 1 8.778 -3.400 9.186 1.00 5.90 C HETATM 14 O3' BRU A 1 6.762 -4.078 7.812 1.00 4.83 O HETATM 15 O4' BRU A 1 8.513 -2.119 9.840 1.00 4.84 O HETATM 16 C5' BRU A 1 10.249 -3.721 9.166 1.00 6.19 C HETATM 17 O5' BRU A 1 10.916 -2.706 8.307 1.00 4.98 O