HEADER DNA 26-OCT-04 1XUX TITLE STRUCTURAL RATIONALIZATION OF A LARGE DIFFERENCE IN RNA AFFINITY TITLE 2 DESPITE A SMALL DIFFERENCE IN CHEMISTRY BETWEEN TWO 2'-O-MODIFIED TITLE 3 NUCLEIC ACID ANALOGS COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*GP*CP*GP*TP*AP*(NMS)P*AP*CP*GP*C)-3'); COMPND 3 CHAIN: A, B, C, D; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: SYNTHETICALLY CREATED KEYWDS RNA MIMETIC METHYLAMINO AMIDE ANALOG, DNA EXPDTA X-RAY DIFFRACTION AUTHOR R.PATTANAYEK,L.SETHAPHONG,C.PAN,M.PRHAVC,T.P.PRAKASH,M.MANOHARAN, AUTHOR 2 M.EGLI REVDAT 5 23-AUG-23 1XUX 1 LINK REVDAT 4 11-OCT-17 1XUX 1 REMARK REVDAT 3 24-FEB-09 1XUX 1 VERSN REVDAT 2 16-JAN-07 1XUX 1 JRNL REMARK MODRES REVDAT 1 14-DEC-04 1XUX 0 JRNL AUTH R.PATTANAYEK,L.SETHAPHONG,C.PAN,M.PRHAVC,T.P.PRAKASH, JRNL AUTH 2 M.MANOHARAN,M.EGLI JRNL TITL STRUCTURAL RATIONALIZATION OF A LARGE DIFFERENCE IN RNA JRNL TITL 2 AFFINITY DESPITE A SMALL DIFFERENCE IN CHEMISTRY BETWEEN TWO JRNL TITL 3 2'-O-MODIFIED NUCLEIC ACID ANALOGUES. JRNL REF J.AM.CHEM.SOC. V. 126 15006 2004 JRNL REFN ISSN 0002-7863 JRNL PMID 15547979 JRNL DOI 10.1021/JA044637K REMARK 2 REMARK 2 RESOLUTION. 1.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 CROSS-VALIDATION METHOD : THROUGHTOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.127 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.127 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 1150 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 21902 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 832 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 297 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.014 REMARK 3 ANGLE DISTANCES (A) : 0.022 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1XUX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-NOV-04. REMARK 100 THE DEPOSITION ID IS D_1000030791. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-NOV-02 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 5ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.96297 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MAR REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 23065 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.4 REMARK 200 DATA REDUNDANCY : 9.600 REMARK 200 R MERGE (I) : 0.04400 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) : 1.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.38 REMARK 200 COMPLETENESS FOR SHELL (%) : 49.8 REMARK 200 DATA REDUNDANCY IN SHELL : 13.10 REMARK 200 R MERGE FOR SHELL (I) : 0.07300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: EPMR REMARK 200 STARTING MODEL: 1DPL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 71.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1MM 10MER, 40MM SODIUM CACODYLATE, 12 REMARK 280 MM SPERMINE 4HCL, 80MM POTASSIUM CHLORIDE, 10% MPD, PH 7, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 291K 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 22.30300 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 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 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: 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 1 C2' DG A 1 C1' -0.092 REMARK 500 DC A 2 C2' DC A 2 C1' -0.089 REMARK 500 DC A 2 O4' DC A 2 C1' 0.067 REMARK 500 DG A 3 C2' DG A 3 C1' -0.086 REMARK 500 DT A 4 C2' DT A 4 C1' -0.098 REMARK 500 DA A 5 C2' DA A 5 C1' -0.084 REMARK 500 DA A 7 C2' DA A 7 C1' -0.076 REMARK 500 DG A 9 C2' DG A 9 C1' -0.125 REMARK 500 DG A 9 O4' DG A 9 C1' 0.082 REMARK 500 DC A 10 C2' DC A 10 C1' -0.113 REMARK 500 DC A 10 O4' DC A 10 C1' 0.069 REMARK 500 DG B 101 C3' DG B 101 C2' -0.049 REMARK 500 DG B 101 C2' DG B 101 C1' -0.077 REMARK 500 DG B 101 O3' DC B 102 P -0.099 REMARK 500 DC B 102 C2' DC B 102 C1' -0.065 REMARK 500 DG B 103 C2' DG B 103 C1' -0.090 REMARK 500 DG B 103 O4' DG B 103 C1' 0.084 REMARK 500 DT B 104 C2' DT B 104 C1' -0.100 REMARK 500 DA B 105 C2' DA B 105 C1' -0.077 REMARK 500 DA B 107 C2' DA B 107 C1' -0.093 REMARK 500 DC B 108 C2' DC B 108 C1' -0.073 REMARK 500 DG B 109 C2' DG B 109 C1' -0.072 REMARK 500 DC B 110 C3' DC B 110 C2' -0.067 REMARK 500 DC B 110 C2' DC B 110 C1' -0.068 REMARK 500 DG C 201 C2' DG C 201 C1' -0.081 REMARK 500 DC C 202 C3' DC C 202 C2' -0.061 REMARK 500 DC C 202 C2' DC C 202 C1' -0.101 REMARK 500 DC C 202 O4' DC C 202 C1' 0.086 REMARK 500 DG C 203 C2' DG C 203 C1' -0.094 REMARK 500 DT C 204 C2' DT C 204 C1' -0.089 REMARK 500 DA C 205 C2' DA C 205 C1' -0.062 REMARK 500 DA C 207 C2' DA C 207 C1' -0.065 REMARK 500 DC C 208 C2' DC C 208 C1' -0.061 REMARK 500 DC C 208 O3' DC C 208 C3' -0.039 REMARK 500 DG C 209 C2' DG C 209 C1' -0.092 REMARK 500 DC C 210 C2' DC C 210 C1' -0.063 REMARK 500 DG D 301 C2' DG D 301 C1' -0.091 REMARK 500 DC D 302 C2' DC D 302 C1' -0.065 REMARK 500 DG D 303 C2' DG D 303 C1' -0.068 REMARK 500 DT D 304 C2' DT D 304 C1' -0.084 REMARK 500 DA D 305 C2' DA D 305 C1' -0.072 REMARK 500 DC D 308 C3' DC D 308 C2' -0.051 REMARK 500 DG D 309 C2' DG D 309 C1' -0.112 REMARK 500 DG D 309 O4' DG D 309 C1' 0.096 REMARK 500 DG D 309 C6 DG D 309 O6 -0.055 REMARK 500 DC D 310 C2' DC D 310 C1' -0.083 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 1 O4' - C4' - C3' ANGL. DEV. = -2.8 DEGREES REMARK 500 DG A 1 O4' - C1' - N9 ANGL. DEV. = -5.7 DEGREES REMARK 500 DC A 2 O4' - C1' - N1 ANGL. DEV. = -6.2 DEGREES REMARK 500 DG A 3 O4' - C1' - N9 ANGL. DEV. = -6.5 DEGREES REMARK 500 DT A 4 O4' - C4' - C3' ANGL. DEV. = -2.6 DEGREES REMARK 500 DA A 5 O4' - C1' - N9 ANGL. DEV. = -6.7 DEGREES REMARK 500 DA A 7 O4' - C4' - C3' ANGL. DEV. = -2.8 DEGREES REMARK 500 DA A 7 C4' - C3' - C2' ANGL. DEV. = -4.3 DEGREES REMARK 500 DC A 8 O4' - C4' - C3' ANGL. DEV. = -3.2 DEGREES REMARK 500 DG A 9 O4' - C4' - C3' ANGL. DEV. = -2.5 DEGREES REMARK 500 DG A 9 O4' - C1' - N9 ANGL. DEV. = -7.5 DEGREES REMARK 500 DG A 9 C8 - N9 - C4 ANGL. DEV. = 2.5 DEGREES REMARK 500 DG A 9 C4 - N9 - C1' ANGL. DEV. = -7.9 DEGREES REMARK 500 DC A 10 O4' - C1' - N1 ANGL. DEV. = -7.4 DEGREES REMARK 500 DC A 10 C6 - N1 - C2 ANGL. DEV. = 3.2 DEGREES REMARK 500 DC A 10 C2 - N1 - C1' ANGL. DEV. = -6.9 DEGREES REMARK 500 DG B 101 O4' - C4' - C3' ANGL. DEV. = -2.6 DEGREES REMARK 500 DG B 101 O4' - C1' - N9 ANGL. DEV. = -8.8 DEGREES REMARK 500 DG B 101 C3' - O3' - P ANGL. DEV. = 19.6 DEGREES REMARK 500 DG B 101 C3' - O3' - P ANGL. DEV. = -9.5 DEGREES REMARK 500 DC B 102 C2 - N3 - C4 ANGL. DEV. = 4.3 DEGREES REMARK 500 DC B 102 N3 - C4 - C5 ANGL. DEV. = -4.3 DEGREES REMARK 500 DC B 102 C6 - N1 - C1' ANGL. DEV. = 7.5 DEGREES REMARK 500 DG B 103 O4' - C1' - N9 ANGL. DEV. = -8.8 DEGREES REMARK 500 DG B 103 C8 - N9 - C1' ANGL. DEV. = 8.0 DEGREES REMARK 500 DG B 103 C4 - N9 - C1' ANGL. DEV. = -8.5 DEGREES REMARK 500 DT B 104 O4' - C4' - C3' ANGL. DEV. = -2.9 DEGREES REMARK 500 DT B 104 O4' - C1' - N1 ANGL. DEV. = -4.6 DEGREES REMARK 500 DA B 107 O4' - C4' - C3' ANGL. DEV. = -3.5 DEGREES REMARK 500 DA B 107 O4' - C1' - N9 ANGL. DEV. = -7.6 DEGREES REMARK 500 DC B 108 C2 - N3 - C4 ANGL. DEV. = 3.8 DEGREES REMARK 500 DG B 109 O4' - C1' - N9 ANGL. DEV. = -4.6 DEGREES REMARK 500 DG C 201 O4' - C1' - N9 ANGL. DEV. = -5.9 DEGREES REMARK 500 DC C 202 O4' - C1' - N1 ANGL. DEV. = -6.6 DEGREES REMARK 500 DC C 202 C2 - N3 - C4 ANGL. DEV. = 3.4 DEGREES REMARK 500 DC C 202 N3 - C4 - C5 ANGL. DEV. = -2.9 DEGREES REMARK 500 DG C 203 O4' - C1' - N9 ANGL. DEV. = -8.3 DEGREES REMARK 500 DT C 204 O4' - C1' - N1 ANGL. DEV. = -6.7 DEGREES REMARK 500 DA C 205 N1 - C2 - N3 ANGL. DEV. = -3.5 DEGREES REMARK 500 DC C 208 O4' - C4' - C3' ANGL. DEV. = -3.2 DEGREES REMARK 500 DG C 209 O4' - C1' - N9 ANGL. DEV. = -8.5 DEGREES REMARK 500 DC C 210 O4' - C1' - N1 ANGL. DEV. = -4.6 DEGREES REMARK 500 DG D 301 O4' - C1' - N9 ANGL. DEV. = -7.3 DEGREES REMARK 500 DG D 303 O4' - C4' - C3' ANGL. DEV. = -4.0 DEGREES REMARK 500 DG D 303 O4' - C1' - N9 ANGL. DEV. = -5.7 DEGREES REMARK 500 DT D 304 O4' - C4' - C3' ANGL. DEV. = -3.3 DEGREES REMARK 500 DA D 305 C5 - C6 - N6 ANGL. DEV. = 4.9 DEGREES REMARK 500 DC D 308 C6 - N1 - C2 ANGL. DEV. = 3.6 DEGREES REMARK 500 DC D 308 C5 - C4 - N4 ANGL. DEV. = 4.6 DEGREES REMARK 500 DG D 309 O5' - C5' - C4' ANGL. DEV. = -5.4 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 57 ANGLE DEVIATIONS. REMARK 500 REMARK 500 REMARK: NULL DBREF 1XUX A 1 10 PDB 1XUX 1XUX 1 10 DBREF 1XUX B 101 110 PDB 1XUX 1XUX 101 110 DBREF 1XUX C 201 210 PDB 1XUX 1XUX 201 210 DBREF 1XUX D 301 310 PDB 1XUX 1XUX 301 310 SEQRES 1 A 10 DG DC DG DT DA NMS DA DC DG DC SEQRES 1 B 10 DG DC DG DT DA NMS DA DC DG DC SEQRES 1 C 10 DG DC DG DT DA NMS DA DC DG DC SEQRES 1 D 10 DG DC DG DT DA NMS DA DC DG DC MODRES 1XUX NMS A 6 DT MODRES 1XUX NMS B 106 DT MODRES 1XUX NMS C 206 DT MODRES 1XUX NMS D 306 DT HET NMS A 6 32 HET NMS B 106 32 HET NMS C 206 26 HET NMS D 306 26 HETNAM NMS 1-(O2-(2-METHYLAMINO-2-OXO-ETHYL)-O5-HYDROXYPHOSPHINYL- HETNAM 2 NMS BETA-D-RIBOFURANOSYL)THYMINE FORMUL 1 NMS 4(C13 H20 N3 O10 P) FORMUL 5 HOH *297(H2 O) LINK O3' DA A 5 P NMS A 6 1555 1555 1.61 LINK O3' NMS A 6 P DA A 7 1555 1555 1.59 LINK O3' DA B 105 P NMS B 106 1555 1555 1.58 LINK O3' NMS B 106 P DA B 107 1555 1555 1.59 LINK O3' DA C 205 P NMS C 206 1555 1555 1.58 LINK O3' NMS C 206 P DA C 207 1555 1555 1.59 LINK O3' DA D 305 P NMS D 306 1555 1555 1.55 LINK O3' NMS D 306 P DA D 307 1555 1555 1.60 CRYST1 27.057 44.606 44.106 90.00 99.26 90.00 P 1 21 1 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 0.036959 0.000000 0.006026 0.00000 SCALE2 0.000000 0.022419 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022972 0.00000