HEADER RNA 09-AUG-10 2XO1 TITLE XPT-PBUX C74U RIBOSWITCH FROM B. SUBTILIS BOUND TO N6-METHYLADENINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: GUANINE RIBOSWITCH; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: APTAMER DOMAIN, RESIDUES 15-81; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS; SOURCE 4 ORGANISM_TAXID: 1423 KEYWDS RNA EXPDTA X-RAY DIFFRACTION AUTHOR P.DALDROP,F.E.REYES,D.A.ROBINSON,C.M.HAMMOND,D.M.J.LILLEY,R.T.BATEY, AUTHOR 2 R.BRENK REVDAT 3 08-MAY-24 2XO1 1 REMARK LINK REVDAT 2 06-JUN-18 2XO1 1 TITLE COMPND JRNL REMARK REVDAT 1 06-APR-11 2XO1 0 JRNL AUTH P.DALDROP,F.E.REYES,D.A.ROBINSON,C.M.HAMMOND,D.M.LILLEY, JRNL AUTH 2 R.T.BATEY,R.BRENK JRNL TITL NOVEL LIGANDS FOR A PURINE RIBOSWITCH DISCOVERED BY JRNL TITL 2 RNA-LIGAND DOCKING. JRNL REF CHEM. BIOL. V. 18 324 2011 JRNL REFN ISSN 1879-1301 JRNL PMID 21439477 JRNL DOI 10.1016/J.CHEMBIOL.2010.12.020 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0109 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 66.38 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 95.5 REMARK 3 NUMBER OF REFLECTIONS : 23747 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) : 0.196 REMARK 3 R VALUE (WORKING SET) : 0.195 REMARK 3 FREE R VALUE : 0.211 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1268 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.59 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.63 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1484 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 81.17 REMARK 3 BIN R VALUE (WORKING SET) : 0.2540 REMARK 3 BIN FREE R VALUE SET COUNT : 72 REMARK 3 BIN FREE R VALUE : 0.3280 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 1364 REMARK 3 HETEROGEN ATOMS : 67 REMARK 3 SOLVENT ATOMS : 226 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 0.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.16 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.02000 REMARK 3 B22 (A**2) : -0.92000 REMARK 3 B33 (A**2) : -0.11000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.50000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.099 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.091 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.060 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.705 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.958 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.949 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1571 ; 0.008 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2455 ; 1.508 ; 3.000 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL 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): 320 ; 0.067 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 671 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL 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): 3 ; 0.507 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2 ; 0.802 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1568 ; 1.266 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 2453 ; 1.817 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL 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 : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 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. U VALUES REFINED INDIVIDUALLY, RESIDUES 15, 80, 81 REMARK 3 DISORDERED AND NOT MODELED. REMARK 4 REMARK 4 2XO1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 09-AUG-10. REMARK 100 THE DEPOSITION ID IS D_1290044997. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-MAY-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : DIAMOND REMARK 200 BEAMLINE : I03 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9763 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25098 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 66.380 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.5 REMARK 200 DATA REDUNDANCY : 2.900 REMARK 200 R MERGE (I) : 0.05000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 20.6000 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NONE REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10MM K-HEPES PH 7.5, 20% PEG 3000, REMARK 280 12MM COHEX, 440MM AMMONIUM ACETATE REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 66.38100 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 17.59000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 66.38100 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 17.59000 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 G A 15 REMARK 465 C A 81 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 C A 80 OP1 C5' C4' O4' C3' O3' C2' REMARK 470 C A 80 O2' C1' N1 C2 O2 N3 C4 REMARK 470 C A 80 N4 C5 C6 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 2087 O HOH A 2140 4454 2.03 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 C A 28 O5' - C5' - C4' ANGL. DEV. = -6.8 DEGREES REMARK 500 U A 34 N1 - C1' - C2' ANGL. DEV. = -7.0 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 NCO A 1085 REMARK 615 NCO A 1086 REMARK 615 NCO A 1087 REMARK 615 NCO A 1088 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 K A1091 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A2097 O REMARK 620 2 HOH A2126 O 88.4 REMARK 620 3 HOH A2128 O 83.0 101.0 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE N6M A 1081 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1082 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1083 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1084 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1085 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1086 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1087 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 1088 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1089 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 1091 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 1092 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2XNW RELATED DB: PDB REMARK 900 XPT-PBUX C74U RIBOSWITCH FROM B. SUBTILIS BOUND TO A TRIAZOLO- REMARK 900 TRIAZOLE-DIAMINE LIGAND IDENTIFIED BY VIRTUAL SCREENING REMARK 900 RELATED ID: 2XNZ RELATED DB: PDB REMARK 900 XPT-PBUX C74U RIBOSWITCH FROM B. SUBTILIS BOUND TO ACETOGUANAMINE REMARK 900 IDENTIFIED BY VIRTUAL SCREENING REMARK 900 RELATED ID: 2XO0 RELATED DB: PDB REMARK 900 XPT-PBUX C74U RIBOSWITCH FROM B. SUBTILIS BOUND TO 24-DIAMINO-1,3,5- REMARK 900 TRIAZINE IDENTIFIED BY VIRTUAL SCREENING REMARK 900 RELATED ID: 2G9C RELATED DB: PDB REMARK 900 MODIFIED PYRIMIDINES SPECIFICALLY BIND THE PURINE RIBOSWITCH REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUE 74 C WAS ENGINEERED TO U. DBREF 2XO1 A 15 81 PDB 2XO1 2XO1 15 81 SEQRES 1 A 67 G A A C A U A U A A U C G SEQRES 2 A 67 C G U G G A U A U G G C A SEQRES 3 A 67 C G C A A G U U U C U A C SEQRES 4 A 67 C G G G C A C C G U A A A SEQRES 5 A 67 U G U C C G A U U A U G U SEQRES 6 A 67 C C HET N6M A1081 11 HET NCO A1082 7 HET NCO A1083 7 HET NCO A1084 7 HET NCO A1085 7 HET NCO A1086 7 HET NCO A1087 7 HET NCO A1088 7 HET ACT A1089 4 HET K A1090 1 HET K A1091 1 HET K A1092 1 HETNAM N6M N-METHYL-9H-PURIN-6-AMINE HETNAM NCO COBALT HEXAMMINE(III) HETNAM ACT ACETATE ION HETNAM K POTASSIUM ION HETSYN N6M N6-METHYL ADENINE FORMUL 2 N6M C6 H7 N5 FORMUL 3 NCO 7(CO H18 N6 3+) FORMUL 10 ACT C2 H3 O2 1- FORMUL 11 K 3(K 1+) FORMUL 14 HOH *226(H2 O) LINK K K A1091 O HOH A2097 1555 1555 2.47 LINK K K A1091 O HOH A2126 1555 1555 2.44 LINK K K A1091 O HOH A2128 1555 1555 2.06 LINK K K A1092 O HOH A2177 1555 4445 2.24 SITE 1 AC1 8 A A 21 U A 22 U A 47 U A 51 SITE 2 AC1 8 A A 52 A A 73 U A 74 U A 75 SITE 1 AC2 10 G A 29 U A 30 A A 66 U A 67 SITE 2 AC2 10 HOH A2041 HOH A2183 HOH A2187 HOH A2192 SITE 3 AC2 10 HOH A2193 HOH A2216 SITE 1 AC3 11 C A 39 G A 55 G A 56 G A 57 SITE 2 AC3 11 G A 68 U A 69 HOH A2132 HOH A2138 SITE 3 AC3 11 HOH A2184 HOH A2217 HOH A2218 SITE 1 AC4 11 U A 30 G A 31 G A 32 A A 65 SITE 2 AC4 11 A A 66 HOH A2052 HOH A2054 HOH A2058 SITE 3 AC4 11 HOH A2179 HOH A2180 HOH A2219 SITE 1 AC5 8 G A 38 C A 39 G A 56 G A 57 SITE 2 AC5 8 HOH A2086 HOH A2088 HOH A2131 HOH A2221 SITE 1 AC6 6 U A 36 G A 42 C A 43 G A 72 SITE 2 AC6 6 A A 73 HOH A2103 SITE 1 AC7 1 C A 71 SITE 1 AC8 5 G A 37 G A 38 HOH A2156 HOH A2225 SITE 2 AC8 5 HOH A2226 SITE 1 AC9 7 G A 32 A A 33 G A 38 C A 39 SITE 2 AC9 7 A A 66 U A 67 HOH A2180 SITE 1 BC1 3 HOH A2097 HOH A2126 HOH A2128 SITE 1 BC2 1 HOH A2177 CRYST1 132.762 35.180 41.736 90.00 90.51 90.00 C 1 2 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 0.007532 0.000000 0.000067 0.00000 SCALE2 0.000000 0.028425 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023961 0.00000