HEADER RNA, DNA 26-NOV-16 5U0Q TITLE RNA-DNA HEPTAMER DUPLEX WITH ONE 2'-5'-LINKAGE COMPND MOL_ID: 1; COMPND 2 MOLECULE: RNA (5'-R(*UP*AP*GP*CP*UP*CP*C)-3'); COMPND 3 CHAIN: A, C; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: DNA/RNA (5'-R(*GP*GP*AP*GP*C)-D(P*T)-R(P*A)-3'); COMPND 7 CHAIN: B, D; COMPND 8 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 4 ORGANISM_TAXID: 32630; SOURCE 5 MOL_ID: 2; SOURCE 6 SYNTHETIC: YES; SOURCE 7 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 8 ORGANISM_TAXID: 32630 KEYWDS 2'-5'-LINKAGE, RNA-DNA, RNA, DNA EXPDTA X-RAY DIFFRACTION AUTHOR Z.LUO,J.SHENG REVDAT 4 04-OCT-23 5U0Q 1 REMARK REVDAT 3 28-MAR-18 5U0Q 1 SOURCE REVDAT 2 17-JAN-18 5U0Q 1 REMARK REVDAT 1 29-NOV-17 5U0Q 0 JRNL AUTH Z.LUO,J.SHENG,R.WANG JRNL TITL RNA-DNA HEPTAMER DUPLEX WITH ONE 2'-5'-LINKAGE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.43 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0103 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.43 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.11 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 13355 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 + TEST SET) : 0.154 REMARK 3 R VALUE (WORKING SET) : 0.153 REMARK 3 FREE R VALUE : 0.177 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.700 REMARK 3 FREE R VALUE TEST SET COUNT : 662 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.43 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.50 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1915 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 97.47 REMARK 3 BIN R VALUE (WORKING SET) : 0.2550 REMARK 3 BIN FREE R VALUE SET COUNT : 85 REMARK 3 BIN FREE R VALUE : 0.2390 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 584 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 118 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.66 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.42000 REMARK 3 B22 (A**2) : -1.49000 REMARK 3 B33 (A**2) : -1.64000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -1.16000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.071 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.059 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.056 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.572 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.978 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.975 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 650 ; 0.012 ; 0.011 REMARK 3 BOND LENGTHS OTHERS (A): 286 ; 0.005 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 998 ; 1.755 ; 1.261 REMARK 3 BOND ANGLES OTHERS (DEGREES): 684 ; 5.576 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 110 ; 0.114 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 330 ; 0.023 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 144 ; 0.010 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 650 ; 3.418 ; 4.646 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): 651 ; 3.416 ; 4.646 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): 999 ; 3.734 ; 8.807 REMARK 3 LONG RANGE B REFINED ATOMS (A**2): 979 ; 5.601 ;21.568 REMARK 3 LONG RANGE B OTHER ATOMS (A**2): 976 ; 5.560 ;21.513 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): 936 ; 4.285 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 64 ;36.362 ; 5.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 928 ;19.732 ; 5.000 REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 5U0Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-NOV-16. REMARK 100 THE DEPOSITION ID IS D_1000225115. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-OCT-16 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.2.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14036 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.430 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 (%) : 98.9 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 17.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.43 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.48 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.00 REMARK 200 R MERGE FOR SHELL (I) : 0.61400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 5TKO REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.72 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10% V/V (+/-)-2-METHYL-2,4 REMARK 280 -PENTANEDIOL, 0.040 M SODIUM CACODYLATE TRIHYDRATE PH 5.5, 0.020 REMARK 280 M HEXAMINE COBALT(III) CHLORIDE, 0.02 M MAGNESIUM CHLORIDE REMARK 280 HEXAHYDRATE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K 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 26.46150 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 720 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 2790 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -4.0 KCAL/MOL 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 960 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 3000 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -20.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D 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 204 O HOH B 232 1.92 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 DT B 13 O3' A B 14 P -0.101 REMARK 500 DT D 13 O3' A D 14 P -0.098 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 U A 1 C5' - C4' - O4' ANGL. DEV. = 5.6 DEGREES REMARK 500 G B 8 C5' - C4' - O4' ANGL. DEV. = 6.6 DEGREES REMARK 500 U C 1 C5' - C4' - O4' ANGL. DEV. = 6.0 DEGREES REMARK 500 C C 4 O5' - P - OP2 ANGL. DEV. = -7.1 DEGREES REMARK 500 C C 6 O5' - C5' - C4' ANGL. DEV. = -4.9 DEGREES 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 CO C 101 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH C 212 O REMARK 620 2 HOH C 227 O 166.9 REMARK 620 N 1 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 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CO C 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG C 102 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG D 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for Di-nucleotide A C 2 and G C 3 DBREF 5U0Q A 1 7 PDB 5U0Q 5U0Q 1 7 DBREF 5U0Q B 8 14 PDB 5U0Q 5U0Q 8 14 DBREF 5U0Q C 1 7 PDB 5U0Q 5U0Q 1 7 DBREF 5U0Q D 8 14 PDB 5U0Q 5U0Q 8 14 SEQRES 1 A 7 U A G C U C C SEQRES 1 B 7 G G A G C DT A SEQRES 1 C 7 U A G C U C C SEQRES 1 D 7 G G A G C DT A HET MG B 101 1 HET CO C 101 1 HET MG C 102 1 HET MG D 101 1 HETNAM MG MAGNESIUM ION HETNAM CO COBALT (II) ION FORMUL 5 MG 3(MG 2+) FORMUL 6 CO CO 2+ FORMUL 9 HOH *118(H2 O) LINK O2' A A 2 P G A 3 1555 1555 1.65 LINK O2' A C 2 P G C 3 1555 1555 1.65 LINK MG MG B 101 O HOH B 228 1555 1555 1.73 LINK CO CO C 101 O HOH C 212 1555 1555 1.95 LINK CO CO C 101 O HOH C 227 1555 1555 2.15 LINK MG MG C 102 O HOH C 220 1555 1555 2.46 LINK MG MG D 101 O HOH D 216 1555 1555 2.08 SITE 1 AC1 1 HOH B 228 SITE 1 AC2 2 HOH C 212 HOH C 227 SITE 1 AC3 2 HOH C 215 HOH C 220 SITE 1 AC4 1 HOH D 216 SITE 1 AC5 19 A A 2 HOH A 103 HOH A 111 HOH A 113 SITE 2 AC5 19 HOH A 127 A B 10 G B 11 C B 12 SITE 3 AC5 19 HOH B 208 U C 1 C C 4 HOH C 201 SITE 4 AC5 19 HOH C 204 HOH C 205 HOH C 210 HOH C 211 SITE 5 AC5 19 HOH C 217 C D 12 DT D 13 CRYST1 26.554 52.923 27.622 90.00 96.05 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 0.037659 0.000000 0.003993 0.00000 SCALE2 0.000000 0.018895 0.000000 0.00000 SCALE3 0.000000 0.000000 0.036406 0.00000