PDB Short entry for 265D HEADER DNA 12-JUL-96 265D TITLE STRUCTURAL STUDIES ON NUCLEIC ACIDS COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*CP*GP*(5CM)P*GP*AP*AP*TP*TP*(5CM)P*GP*CP*G)-3'); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1 KEYWDS B-DNA, DOUBLE HELIX, MODIFIED, DNA EXPDTA X-RAY DIFFRACTION AUTHOR B.L.PARTRIDGE,S.A.SALISBURY REVDAT 4 14-FEB-24 265D 1 REMARK LINK REVDAT 3 29-FEB-12 265D 1 VERSN REMARK REVDAT 2 24-FEB-09 265D 1 VERSN REVDAT 1 28-AUG-96 265D 0 JRNL AUTH B.L.PARTRIDGE,S.A.SALISBURY JRNL REF TO BE PUBLISHED 1996 JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH B.L.PARTRIDGE REMARK 1 TITL STRUCTURAL STUDIES ON NUCLEIC ACIDS REMARK 1 REF THESIS, UNIVERSITY OF 1996 REMARK 1 REF 2 CAMBRIDGE REMARK 1 REFN REMARK 2 REMARK 2 RESOLUTION. 2.01 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) : 2.01 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : 4.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 86.2 REMARK 3 NUMBER OF REFLECTIONS : 4233 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) : 0.172 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 : 490 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 117 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) : 0.028 ; 0.015 REMARK 3 PHOSPHATE BOND ANGLE, H-BOND (A) : 0.057 ; 0.025 REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.029 ; 0.015 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.055 ; 0.040 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION CONTACT (A) : 0.101 ; 0.063 REMARK 3 MULTIPLE TORSION CONTACT (A) : 0.272 ; 0.063 REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 SUGAR-BASE BONDS (A**2) : 10.020; 7.500 REMARK 3 SUGAR-BASE ANGLES (A**2) : 11.008; 7.500 REMARK 3 PHOSPHATE BONDS (A**2) : 10.707; 7.500 REMARK 3 PHOSPHATE BOND ANGLE, H-BOND (A**2) : 11.229; 7.500 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: STANDARD R-FACTOR = 17.2% ERROR R REMARK 3 -FACTOR = 5.3% WEIGHTED R-FACTOR = 16.8% NUMBER OF REFLECTIONS REMARK 3 INCLUDED = 11473 AVERAGE |FO-FC| DISCREPANCY = 29.47 AVERAGE REMARK 3 WEIGHTED |FO-FC| DISCREPANCY = 0.13 CORRELATION COEFFICIENT = REMARK 3 102.8% RESOLUTION BREAKDOWN "ALL" R FACTOR = 17.2% REMARK 4 REMARK 4 265D 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_1000177677. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-MAR-95 REMARK 200 TEMPERATURE (KELVIN) : 100.00 REMARK 200 PH : 7.10 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 : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : RIGAKU REMARK 200 DATA SCALING SOFTWARE : RIGAKU REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11473 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.010 REMARK 200 RESOLUTION RANGE LOW (A) : 32.600 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) : 0.11480 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: MIR 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 (%): 45.98 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.10 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 12.71300 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 32.65950 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 20.24500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 32.65950 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 12.71300 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 20.24500 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 A 31 O HOH B 59 2.07 REMARK 500 O4' DC B 13 O HOH B 52 2.11 REMARK 500 OP1 DA A 6 O HOH A 34 2.12 REMARK 500 OP2 DC A 11 O HOH A 97 2.13 REMARK 500 O HOH A 107 O HOH A 126 2.19 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 DC A 1 O4' DC A 1 C4' -0.066 REMARK 500 DG A 2 C5 DG A 2 N7 0.042 REMARK 500 DG A 2 N9 DG A 2 C4 -0.054 REMARK 500 DG A 4 O3' DG A 4 C3' -0.037 REMARK 500 DG A 4 N7 DG A 4 C8 0.046 REMARK 500 DG A 10 P DG A 10 O5' 0.064 REMARK 500 DG A 10 C8 DG A 10 N9 -0.045 REMARK 500 DG A 12 O4' DG A 12 C4' -0.065 REMARK 500 DG B 16 O4' DG B 16 C1' 0.069 REMARK 500 DG B 16 O4' DG B 16 C4' -0.095 REMARK 500 DA B 18 C6 DA B 18 N1 0.048 REMARK 500 DA B 18 C5 DA B 18 N7 0.040 REMARK 500 DT B 19 O4' DT B 19 C1' 0.086 REMARK 500 DT B 19 C2 DT B 19 N3 -0.052 REMARK 500 DC B 23 N3 DC B 23 C4 0.050 REMARK 500 DC B 23 O3' DG B 24 P 0.079 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' - C4' - C3' ANGL. DEV. = -3.0 DEGREES REMARK 500 DC A 1 C1' - O4' - C4' ANGL. DEV. = 5.3 DEGREES REMARK 500 DC A 1 C4' - C3' - C2' ANGL. DEV. = -5.6 DEGREES REMARK 500 DC A 1 C3' - C2' - C1' ANGL. DEV. = -5.2 DEGREES REMARK 500 DC A 1 O4' - C1' - C2' ANGL. DEV. = -9.9 DEGREES REMARK 500 DC A 1 O4' - C1' - N1 ANGL. DEV. = 12.7 DEGREES REMARK 500 DC A 1 C6 - N1 - C2 ANGL. DEV. = -2.6 DEGREES REMARK 500 DC A 1 N3 - C4 - C5 ANGL. DEV. = -2.6 DEGREES REMARK 500 DC A 1 N1 - C2 - O2 ANGL. DEV. = 7.2 DEGREES REMARK 500 DC A 1 N3 - C2 - O2 ANGL. DEV. = -8.5 DEGREES REMARK 500 DG A 2 C5' - C4' - C3' ANGL. DEV. = 8.3 DEGREES REMARK 500 DG A 2 C3' - C2' - C1' ANGL. DEV. = -4.8 DEGREES REMARK 500 DG A 2 C6 - N1 - C2 ANGL. DEV. = -7.0 DEGREES REMARK 500 DG A 2 N1 - C2 - N3 ANGL. DEV. = 5.4 DEGREES REMARK 500 DG A 2 C5 - C6 - N1 ANGL. DEV. = 4.6 DEGREES REMARK 500 DG A 2 C5 - N7 - C8 ANGL. DEV. = -4.7 DEGREES REMARK 500 DG A 2 N7 - C8 - N9 ANGL. DEV. = 4.3 DEGREES REMARK 500 DG A 2 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 DG A 2 N3 - C2 - N2 ANGL. DEV. = -8.0 DEGREES REMARK 500 DG A 2 C5 - C6 - O6 ANGL. DEV. = -7.9 DEGREES REMARK 500 DG A 2 C3' - O3' - P ANGL. DEV. = 21.2 DEGREES REMARK 500 DG A 4 O5' - C5' - C4' ANGL. DEV. = -9.7 DEGREES REMARK 500 DG A 4 C3' - C2' - C1' ANGL. DEV. = -8.1 DEGREES REMARK 500 DG A 4 C6 - N1 - C2 ANGL. DEV. = -6.3 DEGREES REMARK 500 DG A 4 N1 - C2 - N3 ANGL. DEV. = 5.0 DEGREES REMARK 500 DG A 4 C5 - C6 - N1 ANGL. DEV. = 4.5 DEGREES REMARK 500 DG A 4 N3 - C2 - N2 ANGL. DEV. = -5.4 DEGREES REMARK 500 DG A 4 C5 - C6 - O6 ANGL. DEV. = -4.9 DEGREES REMARK 500 DG A 4 C3' - O3' - P ANGL. DEV. = 22.1 DEGREES REMARK 500 DA A 5 O5' - P - OP1 ANGL. DEV. = -5.5 DEGREES REMARK 500 DA A 5 O5' - P - OP2 ANGL. DEV. = 8.9 DEGREES REMARK 500 DA A 5 O5' - C5' - C4' ANGL. DEV. = -6.2 DEGREES REMARK 500 DA A 5 P - O5' - C5' ANGL. DEV. = 15.3 DEGREES REMARK 500 DA A 5 C1' - O4' - C4' ANGL. DEV. = -7.5 DEGREES REMARK 500 DA A 5 O4' - C1' - N9 ANGL. DEV. = -9.2 DEGREES REMARK 500 DA A 5 C6 - N1 - C2 ANGL. DEV. = 10.1 DEGREES REMARK 500 DA A 5 N1 - C2 - N3 ANGL. DEV. = -8.3 DEGREES REMARK 500 DA A 5 C5 - C6 - N1 ANGL. DEV. = -5.2 DEGREES REMARK 500 DA A 5 N1 - C6 - N6 ANGL. DEV. = 4.4 DEGREES REMARK 500 DA A 5 C3' - O3' - P ANGL. DEV. = 12.4 DEGREES REMARK 500 DA A 6 C5 - C6 - N1 ANGL. DEV. = -4.0 DEGREES REMARK 500 DA A 6 C3' - O3' - P ANGL. DEV. = 15.2 DEGREES REMARK 500 DT A 7 O5' - C5' - C4' ANGL. DEV. = -6.6 DEGREES REMARK 500 DT A 7 C1' - O4' - C4' ANGL. DEV. = -10.6 DEGREES REMARK 500 DT A 7 O4' - C1' - N1 ANGL. DEV. = -5.2 DEGREES REMARK 500 DT A 7 N3 - C4 - O4 ANGL. DEV. = -4.1 DEGREES REMARK 500 DT A 7 C4 - C5 - C7 ANGL. DEV. = 6.0 DEGREES REMARK 500 DT A 7 C6 - C5 - C7 ANGL. DEV. = -6.8 DEGREES REMARK 500 DT A 7 C3' - O3' - P ANGL. DEV. = 14.8 DEGREES REMARK 500 DT A 8 C2 - N3 - C4 ANGL. DEV. = -6.1 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 128 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 25 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 137 O REMARK 620 2 HOH A 140 O 86.5 REMARK 620 3 HOH A 141 O 88.2 81.7 REMARK 620 4 HOH B 138 O 176.8 94.6 88.9 REMARK 620 5 HOH B 139 O 89.4 170.2 89.3 89.0 REMARK 620 6 HOH B 142 O 90.3 96.0 177.3 92.6 93.0 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 MG A 25 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 266D RELATED DB: PDB REMARK 900 RELATED ID: 267D RELATED DB: PDB REMARK 900 RELATED ID: 268D RELATED DB: PDB REMARK 900 RELATED ID: 269D RELATED DB: PDB REMARK 900 RELATED ID: 270D RELATED DB: PDB REMARK 900 RELATED ID: 271D RELATED DB: PDB DBREF 265D A 1 12 PDB 265D 265D 1 12 DBREF 265D B 13 24 PDB 265D 265D 13 24 SEQRES 1 A 12 DC DG 5CM DG DA DA DT DT 5CM DG DC DG SEQRES 1 B 12 DC DG 5CM DG DA DA DT DT 5CM DG DC DG MODRES 265D 5CM A 3 DC MODRES 265D 5CM A 9 DC MODRES 265D 5CM B 15 DC MODRES 265D 5CM B 21 DC HET 5CM A 3 20 HET 5CM A 9 20 HET 5CM B 15 20 HET 5CM B 21 20 HET MG A 25 1 HETNAM 5CM 5-METHYL-2'-DEOXY-CYTIDINE-5'-MONOPHOSPHATE HETNAM MG MAGNESIUM ION FORMUL 1 5CM 4(C10 H16 N3 O7 P) FORMUL 3 MG MG 2+ FORMUL 4 HOH *117(H2 O) LINK O3' DG A 2 P 5CM A 3 1555 1555 1.57 LINK O3' 5CM A 3 P DG A 4 1555 1555 1.65 LINK O3' DT A 8 P 5CM A 9 1555 1555 1.66 LINK O3' 5CM A 9 P DG A 10 1555 1555 1.65 LINK O3' DG B 14 P 5CM B 15 1555 1555 1.61 LINK O3' 5CM B 15 P DG B 16 1555 1555 1.56 LINK O3' DT B 20 P 5CM B 21 1555 1555 1.63 LINK O3' 5CM B 21 P DG B 22 1555 1555 1.60 LINK MG MG A 25 O HOH A 137 1555 1555 2.06 LINK MG MG A 25 O HOH A 140 1555 1555 1.98 LINK MG MG A 25 O HOH A 141 1555 1555 2.13 LINK MG MG A 25 O HOH B 138 1555 1555 1.93 LINK MG MG A 25 O HOH B 139 1555 1555 2.03 LINK MG MG A 25 O HOH B 142 1555 1555 1.93 SITE 1 AC1 6 HOH A 137 HOH A 140 HOH A 141 HOH B 138 SITE 2 AC1 6 HOH B 139 HOH B 142 CRYST1 25.426 40.490 65.319 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 0.039330 -0.000001 -0.000001 0.00000 SCALE2 0.000000 0.024697 -0.000001 0.00000 SCALE3 0.000000 0.000000 0.015309 0.00000