HEADER RNA 16-NOV-04 1Y0Q TITLE CRYSTAL STRUCTURE OF AN ACTIVE GROUP I RIBOZYME-PRODUCT COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: GROUP I RIBOZYME; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: ORF142-I2 INTRON; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: 5'-R(*GP*CP*UP*U)-3'; COMPND 8 CHAIN: B; COMPND 9 FRAGMENT: 5'-EXON; COMPND 10 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS PHAGE TWORT; SOURCE 3 ORGANISM_TAXID: 55510; SOURCE 4 GENE: ORF142-I2; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: XL-1 BLUE; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PUC-19; SOURCE 10 MOL_ID: 2; SOURCE 11 SYNTHETIC: YES; SOURCE 12 OTHER_DETAILS: CHEMICALLY SYNTHESIZED RNA OLIGONUCLEOTIDE KEYWDS RIBOZYME, RNA-SPLICING, GUANOSINE-BINDING, RNA-FOLDING, RNA EXPDTA X-RAY DIFFRACTION AUTHOR B.L.GOLDEN,H.KIM,E.CHASE REVDAT 4 14-FEB-24 1Y0Q 1 REMARK LINK REVDAT 3 24-FEB-09 1Y0Q 1 VERSN REVDAT 2 08-FEB-05 1Y0Q 1 JRNL REVDAT 1 21-DEC-04 1Y0Q 0 JRNL AUTH B.L.GOLDEN,H.KIM,E.CHASE JRNL TITL CRYSTAL STRUCTURE OF A PHAGE TWORT GROUP I RIBOZYME-PRODUCT JRNL TITL 2 COMPLEX JRNL REF NAT.STRUCT.MOL.BIOL. V. 12 82 2005 JRNL REFN ISSN 1545-9993 JRNL PMID 15580277 JRNL DOI 10.1038/NSMB868 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.LANDTHALER,D.A.SHUB REMARK 1 TITL UNEXPECTED ABUNDANCE OF SELF-SPLICING INTRONS IN THE GENOME REMARK 1 TITL 2 OF BACTERIOPHAGE TWORT: INTRONS IN MULTIPLE GENES, A SINGLE REMARK 1 TITL 3 GENE WITH THREE INTRONS, AND EXON SKIPPING BY GROUP I REMARK 1 TITL 4 RIBOZYMES REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 96 7005 1999 REMARK 1 REFN ISSN 0027-8424 REMARK 2 REMARK 2 RESOLUTION. 3.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.54 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 515958.480 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 86.4 REMARK 3 NUMBER OF REFLECTIONS : 14373 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 SET) : 0.277 REMARK 3 FREE R VALUE : 0.310 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 713 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.012 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 3.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.82 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 72.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1891 REMARK 3 BIN R VALUE (WORKING SET) : 0.3820 REMARK 3 BIN FREE R VALUE : 0.3880 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 98 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.039 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 4973 REMARK 3 HETEROGEN ATOMS : 23 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 102.9 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 142.4 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 9.04000 REMARK 3 B22 (A**2) : -22.67000 REMARK 3 B33 (A**2) : 13.63000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.62 REMARK 3 ESD FROM SIGMAA (A) : 0.58 REMARK 3 LOW RESOLUTION CUTOFF (A) : 20.0 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.73 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.76 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 17.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.530 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : GROUP REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : DNA-RNA_REP.PARAM REMARK 3 PARAMETER FILE 2 : ION.PARAM REMARK 3 PARAMETER FILE 3 : SPK.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 2 : SPK.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1Y0Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-NOV-04. REMARK 100 THE DEPOSITION ID IS D_1000030969. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-AUG-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 8-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979 REMARK 200 MONOCHROMATOR : SI 111 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 : 15937 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.600 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.0 REMARK 200 DATA REDUNDANCY : 3.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03800 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) : 3.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.73 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : 3.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.37200 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIR REMARK 200 SOFTWARE USED: DM REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 70.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: POTASSIUM CACODYLATE, MAGNESIUM, REMARK 280 SPERMINE, LITHIUM SULFATE, PH 6.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 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 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X,-Y+1/2,Z REMARK 290 7555 -X+1/2,Y,-Z REMARK 290 8555 X,-Y,-Z+1/2 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 47.28500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 105.42500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 70.48500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 105.42500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 47.28500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 70.48500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 47.28500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 70.48500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 105.42500 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 70.48500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 47.28500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 105.42500 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 A A 78 P OP1 OP2 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 O2 C A 197 N6 A A 246 2.15 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 A A 126 N9 - C1' - C2' ANGL. DEV. = 9.8 DEGREES REMARK 500 A A 126 O4' - C1' - N9 ANGL. DEV. = 5.8 DEGREES REMARK 500 A A 158 C5' - C4' - O4' ANGL. DEV. = 7.2 DEGREES REMARK 500 U A 186 N1 - C1' - C2' ANGL. DEV. = 8.0 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 U A 45 0.09 SIDE CHAIN REMARK 500 A A 104 0.05 SIDE CHAIN REMARK 500 A A 126 0.05 SIDE CHAIN REMARK 500 G A 142 0.05 SIDE CHAIN 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 255 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 C A 118 O2 REMARK 620 2 U A 186 OP2 132.0 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 257 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 185 OP1 REMARK 620 2 A A 187 O3' 115.5 REMARK 620 3 A A 187 OP2 99.2 94.5 REMARK 620 4 A A 187 O5' 79.6 59.8 53.8 REMARK 620 5 U A 188 OP1 106.3 49.8 142.5 104.2 REMARK 620 6 G A 252 O3' 170.1 63.9 90.7 107.1 65.4 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 254 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 255 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 256 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 257 DBREF 1Y0Q A 9 252 PDB 1Y0Q 1Y0Q 9 252 DBREF 1Y0Q B 1 4 PDB 1Y0Q 1Y0Q 1 4 SEQRES 1 A 229 G A G C C U U U A U A C A SEQRES 2 A 229 G U A A U G U A U A U C G SEQRES 3 A 229 A A A A A U C C U C U A A SEQRES 4 A 229 U U C A G G G A A C A C C SEQRES 5 A 229 U A A G G C A A U C C U G SEQRES 6 A 229 A G C U A A G C U C U U A SEQRES 7 A 229 G U A A U A A G A G A A A SEQRES 8 A 229 G U G C A A C G A C U A U SEQRES 9 A 229 U C C G A U A G G A A G U SEQRES 10 A 229 A G G G U C A A G U G A C SEQRES 11 A 229 U C G A A A U G G G G A U SEQRES 12 A 229 U A C C C U U C U A G G G SEQRES 13 A 229 U A G U G A U A U A G U C SEQRES 14 A 229 U G A A C A U A U A U G G SEQRES 15 A 229 A A A C A U A U A G A A G SEQRES 16 A 229 G A U A G G A G U A A C G SEQRES 17 A 229 A A C C U A U C C G U A A SEQRES 18 A 229 C A U A A U U G SEQRES 1 B 4 G C U U HET SPK A 253 14 HET MG A 254 1 HET MG A 255 1 HET MG A 256 1 HET MG A 257 1 HET SO4 A 301 5 HETNAM SPK SPERMINE (FULLY PROTONATED FORM) HETNAM MG MAGNESIUM ION HETNAM SO4 SULFATE ION FORMUL 3 SPK C10 H30 N4 4+ FORMUL 4 MG 4(MG 2+) FORMUL 8 SO4 O4 S 2- LINK OP1 G A 117 MG MG A 254 1555 1555 2.68 LINK O2 C A 118 MG MG A 255 1555 1555 2.55 LINK OP1 A A 185 MG MG A 257 1555 1555 2.85 LINK OP2 U A 186 MG MG A 255 1555 1555 2.62 LINK O3' A A 187 MG MG A 257 1555 1555 3.08 LINK OP2 A A 187 MG MG A 257 1555 1555 2.83 LINK O5' A A 187 MG MG A 257 1555 1555 2.60 LINK OP1 U A 188 MG MG A 257 1555 1555 2.82 LINK N7 G A 190 MG MG A 256 1555 1555 2.78 LINK O3' G A 252 MG MG A 257 1555 1555 3.11 SITE 1 AC1 2 G A 117 A A 123 SITE 1 AC2 3 U A 116 C A 118 U A 186 SITE 1 AC3 1 G A 190 SITE 1 AC4 4 A A 185 A A 187 U A 188 G A 252 CRYST1 94.570 140.970 210.850 90.00 90.00 90.00 I 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 0.010574 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007094 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004743 0.00000