PDB Short entry for 270D HEADER DNA 12-JUL-96 270D TITLE STRUCTURAL STUDIES ON NUCLEIC ACIDS COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*(5CM)P*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, MODIFIED, DNA EXPDTA X-RAY DIFFRACTION AUTHOR B.L.PARTRIDGE,S.A.SALISBURY REVDAT 3 29-FEB-12 270D 1 VERSN REMARK REVDAT 2 24-FEB-09 270D 1 VERSN REVDAT 1 28-AUG-96 270D 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)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 83.9 REMARK 3 NUMBER OF REFLECTIONS : 4028 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) : 0.176 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 : 488 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 123 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) : 0.030 ; 0.015 REMARK 3 PHOSPHATE BOND ANGLE, H-BOND (A) : 0.054 ; 0.025 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) : 9.243 ; 7.500 REMARK 3 SUGAR-BASE ANGLES (A**2) : 10.567; 7.500 REMARK 3 PHOSPHATE BONDS (A**2) : 10.778; 7.500 REMARK 3 PHOSPHATE BOND ANGLE, H-BOND (A**2) : 11.656; 7.500 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: STANDARD R-FACTOR = 17.6% ERROR R- REMARK 3 FACTOR = 3.3% WEIGHTED R-FACTOR = 17.0% NUMBER OF REFLECTIONS REMARK 3 INCLUDED = 8707 AVERAGE |FO-FC| DISCREPANCY = 20.42 AVERAGE REMARK 3 WEIGHTED |FO-FC| DISCREPANCY = -0.06 CORRELATION COEFFICIENT = REMARK 3 98.3% RESOLUTION BREAKDOWN "ALL" R FACTOR = 21.1% REMARK 4 REMARK 4 270D COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-MAY-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 : 8707 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.010 REMARK 200 RESOLUTION RANGE LOW (A) : 40.200 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) : 0.08180 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 (%): 44.87 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.23 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 12.41400 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 32.78150 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 20.16150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 32.78150 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 12.41400 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 20.16150 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 N7 DG B 24 O HOH B 73 2.08 REMARK 500 OP1 DC B 23 O HOH B 42 2.09 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 C5' DC A 1 C4' 0.049 REMARK 500 DC A 1 O4' DC A 1 C4' -0.060 REMARK 500 DA A 6 C5 DA A 6 C6 0.056 REMARK 500 DA A 6 C6 DA A 6 N6 -0.054 REMARK 500 DT A 7 N1 DT A 7 C2 0.056 REMARK 500 DT A 8 P DT A 8 O5' 0.064 REMARK 500 DG A 10 C6 DG A 10 N1 -0.045 REMARK 500 DG A 12 O4' DG A 12 C1' 0.090 REMARK 500 DC B 13 O3' DC B 13 C3' -0.048 REMARK 500 DG B 14 C6 DG B 14 N1 -0.045 REMARK 500 DC B 15 O4' DC B 15 C4' -0.069 REMARK 500 DG B 16 C8 DG B 16 N9 0.050 REMARK 500 DA B 17 N3 DA B 17 C4 -0.056 REMARK 500 DA B 17 C8 DA B 17 N9 0.060 REMARK 500 DA B 18 N9 DA B 18 C4 0.057 REMARK 500 DT B 19 O4' DT B 19 C1' 0.071 REMARK 500 DT B 19 N1 DT B 19 C2 0.069 REMARK 500 DT B 20 P DT B 20 O5' 0.082 REMARK 500 DT B 20 O4' DT B 20 C1' 0.084 REMARK 500 DT B 20 N1 DT B 20 C2 0.055 REMARK 500 DG B 22 N1 DG B 22 C2 0.061 REMARK 500 DG B 24 O4' DG B 24 C4' -0.071 REMARK 500 DG B 24 C6 DG B 24 N1 -0.070 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 O5' - C5' - C4' ANGL. DEV. = -8.5 DEGREES REMARK 500 DC A 1 O4' - C1' - C2' ANGL. DEV. = -8.2 DEGREES REMARK 500 DC A 1 O4' - C1' - N1 ANGL. DEV. = 1.9 DEGREES REMARK 500 DC A 1 N3 - C4 - N4 ANGL. DEV. = 4.4 DEGREES REMARK 500 DG A 2 O5' - C5' - C4' ANGL. DEV. = -9.6 DEGREES REMARK 500 DG A 2 C6 - N1 - C2 ANGL. DEV. = -5.6 DEGREES REMARK 500 DG A 2 N1 - C2 - N3 ANGL. DEV. = 5.4 DEGREES REMARK 500 DG A 2 C5 - C6 - N1 ANGL. DEV. = 3.4 DEGREES REMARK 500 DG A 2 C8 - N9 - C4 ANGL. DEV. = -3.4 DEGREES REMARK 500 DG A 2 N9 - C4 - C5 ANGL. DEV. = 3.0 DEGREES REMARK 500 DC A 3 OP1 - P - OP2 ANGL. DEV. = -12.0 DEGREES REMARK 500 DC A 3 O5' - P - OP1 ANGL. DEV. = 9.9 DEGREES REMARK 500 DC A 3 N3 - C4 - C5 ANGL. DEV. = -2.6 DEGREES REMARK 500 DC A 3 C4 - C5 - C6 ANGL. DEV. = 4.1 DEGREES REMARK 500 DG A 4 C5' - C4' - C3' ANGL. DEV. = 7.4 DEGREES REMARK 500 DG A 4 C1' - O4' - C4' ANGL. DEV. = 4.4 DEGREES REMARK 500 DG A 4 C6 - N1 - C2 ANGL. DEV. = -4.8 DEGREES REMARK 500 DG A 4 N1 - C2 - N3 ANGL. DEV. = 5.7 DEGREES REMARK 500 DA A 5 O5' - P - OP1 ANGL. DEV. = 10.4 DEGREES REMARK 500 DA A 5 P - O5' - C5' ANGL. DEV. = 23.6 DEGREES REMARK 500 DA A 5 O4' - C1' - C2' ANGL. DEV. = -5.9 DEGREES REMARK 500 DG A 4 C3' - O3' - P ANGL. DEV. = 14.2 DEGREES REMARK 500 DA A 6 O5' - C5' - C4' ANGL. DEV. = -4.9 DEGREES REMARK 500 DA A 6 O4' - C4' - C3' ANGL. DEV. = 3.8 DEGREES REMARK 500 DA A 6 C1' - O4' - C4' ANGL. DEV. = -8.4 DEGREES REMARK 500 DA A 6 O4' - C1' - N9 ANGL. DEV. = -4.2 DEGREES REMARK 500 DA A 6 C6 - N1 - C2 ANGL. DEV. = 6.7 DEGREES REMARK 500 DA A 6 C5 - C6 - N1 ANGL. DEV. = -5.3 DEGREES REMARK 500 DA A 6 N1 - C6 - N6 ANGL. DEV. = 6.1 DEGREES REMARK 500 DT A 7 C1' - O4' - C4' ANGL. DEV. = -6.0 DEGREES REMARK 500 DT A 7 N1 - C2 - N3 ANGL. DEV. = 4.8 DEGREES REMARK 500 DT A 7 C2 - N3 - C4 ANGL. DEV. = -5.5 DEGREES REMARK 500 DT A 7 C6 - N1 - C1' ANGL. DEV. = 9.9 DEGREES REMARK 500 DA A 6 C3' - O3' - P ANGL. DEV. = 12.5 DEGREES REMARK 500 DT A 8 OP1 - P - OP2 ANGL. DEV. = -12.3 DEGREES REMARK 500 DT A 8 O4' - C1' - N1 ANGL. DEV. = -4.4 DEGREES REMARK 500 DT A 8 N1 - C2 - N3 ANGL. DEV. = 5.6 DEGREES REMARK 500 DT A 8 C2 - N3 - C4 ANGL. DEV. = -6.9 DEGREES REMARK 500 DT A 8 N3 - C4 - C5 ANGL. DEV. = 4.0 DEGREES REMARK 500 DT A 8 N1 - C2 - O2 ANGL. DEV. = -6.6 DEGREES REMARK 500 DT A 8 C5 - C4 - O4 ANGL. DEV. = -5.0 DEGREES REMARK 500 DT A 8 C4 - C5 - C7 ANGL. DEV. = 5.0 DEGREES REMARK 500 DT A 8 C6 - C5 - C7 ANGL. DEV. = -6.5 DEGREES REMARK 500 DT A 8 O3' - P - OP1 ANGL. DEV. = 11.4 DEGREES REMARK 500 DG A 10 O5' - C5' - C4' ANGL. DEV. = -5.4 DEGREES REMARK 500 DG A 10 C1' - O4' - C4' ANGL. DEV. = -6.5 DEGREES REMARK 500 DG A 10 C3' - C2' - C1' ANGL. DEV. = -8.0 DEGREES REMARK 500 DG A 10 O4' - C1' - N9 ANGL. DEV. = 2.8 DEGREES REMARK 500 DG A 10 N1 - C2 - N2 ANGL. DEV. = 7.3 DEGREES REMARK 500 DG A 10 N3 - C2 - N2 ANGL. DEV. = -9.0 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 136 ANGLE DEVIATIONS. REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 48 DISTANCE = 6.20 ANGSTROMS REMARK 525 HOH A 79 DISTANCE = 7.38 ANGSTROMS REMARK 525 HOH A 94 DISTANCE = 7.34 ANGSTROMS 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 B 145 O REMARK 620 2 HOH A 148 O 87.7 REMARK 620 3 HOH A 147 O 86.6 172.5 REMARK 620 4 HOH B 144 O 93.0 91.3 94.0 REMARK 620 5 HOH A 146 O 175.4 92.5 92.8 91.6 REMARK 620 6 HOH A 143 O 89.5 86.7 88.3 176.7 85.9 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: 265D RELATED DB: PDB 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: 271D RELATED DB: PDB DBREF 270D A 1 12 PDB 270D 270D 1 12 DBREF 270D B 13 24 PDB 270D 270D 13 24 SEQRES 1 A 12 DC DG DC DG DA DA DT DT 5CM DG DC DG SEQRES 1 B 12 DC DG DC DG DA DA DT DT 5CM DG DC DG MODRES 270D 5CM A 9 DC MODRES 270D 5CM B 21 DC HET 5CM A 9 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 2(C10 H16 N3 O7 P) FORMUL 3 MG MG 2+ FORMUL 4 HOH *123(H2 O) LINK MG MG A 25 O HOH B 145 1555 1555 2.05 LINK MG MG A 25 O HOH A 148 1555 1555 2.01 LINK MG MG A 25 O HOH A 147 1555 1555 1.97 LINK MG MG A 25 O HOH B 144 1555 1555 1.90 LINK MG MG A 25 O HOH A 146 1555 1555 1.98 LINK MG MG A 25 O HOH A 143 1555 1555 2.04 LINK O3' DT A 8 P 5CM A 9 1555 1555 1.59 LINK O3' 5CM A 9 P DG A 10 1555 1555 1.60 LINK O3' DT B 20 P 5CM B 21 1555 1555 1.61 LINK O3' 5CM B 21 P DG B 22 1555 1555 1.63 SITE 1 AC1 6 HOH A 143 HOH A 146 HOH A 147 HOH A 148 SITE 2 AC1 6 HOH B 144 HOH B 145 CRYST1 24.828 40.323 65.563 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 0.040277 -0.000001 -0.000001 0.00000 SCALE2 0.000000 0.024800 -0.000001 0.00000 SCALE3 0.000000 0.000000 0.015253 0.00000