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- PDB-2xo1: xpt-pbuX C74U Riboswitch from B. subtilis bound to N6-methyladenine -

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Basic information

Entry
Database: PDB / ID: 2xo1
Titlexpt-pbuX C74U Riboswitch from B. subtilis bound to N6-methyladenine
ComponentsGuanine riboswitch
KeywordsRNA
Function / homologyACETATE ION / : / N-METHYL-9H-PURIN-6-AMINE / COBALT HEXAMMINE(III) / RNA / RNA (> 10)
Function and homology information
Biological speciesBACILLUS SUBTILIS (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / OTHER / Resolution: 1.6 Å
AuthorsDaldrop, P. / Reyes, F.E. / Robinson, D.A. / Hammond, C.M. / Lilley, D.M.J. / Batey, R.T. / Brenk, R.
CitationJournal: Chem. Biol. / Year: 2011
Title: Novel ligands for a purine riboswitch discovered by RNA-ligand docking.
Authors: Daldrop, P. / Reyes, F.E. / Robinson, D.A. / Hammond, C.M. / Lilley, D.M. / Batey, R.T. / Brenk, R.
History
DepositionAug 9, 2010Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 6, 2011Provider: repository / Type: Initial release
Revision 1.1Jun 6, 2018Group: Advisory / Data collection ...Advisory / Data collection / Database references / Structure summary
Category: citation / citation_author ...citation / citation_author / entity / pdbx_unobs_or_zero_occ_atoms / struct
Item: _citation.journal_abbrev / _citation.journal_id_ISSN ..._citation.journal_abbrev / _citation.journal_id_ISSN / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.title / _citation_author.name / _entity.pdbx_description / _struct.title
Revision 1.2May 8, 2024Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr2_auth_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Guanine riboswitch
hetero molecules


Theoretical massNumber of molelcules
Total (without water)22,94513
Polymers21,4921
Non-polymers1,45312
Water4,071226
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)132.762, 35.180, 41.736
Angle α, β, γ (deg.)90.00, 90.51, 90.00
Int Tables number5
Space group name H-MC121

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Components

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RNA chain , 1 types, 1 molecules A

#1: RNA chain Guanine riboswitch


Mass: 21491.768 Da / Num. of mol.: 1 / Fragment: APTAMER DOMAIN, RESIDUES 15-81 / Source method: obtained synthetically / Source: (synth.) BACILLUS SUBTILIS (bacteria)

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Non-polymers , 5 types, 238 molecules

#2: Chemical ChemComp-N6M / N-METHYL-9H-PURIN-6-AMINE / N6-METHYL ADENINE


Mass: 149.153 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H7N5
#3: Chemical
ChemComp-NCO / COBALT HEXAMMINE(III)


Mass: 161.116 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: CoH18N6
#4: Chemical ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H3O2
#5: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: K
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 226 / Source method: isolated from a natural source / Formula: H2O

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Details

Sequence detailsRESIDUE 74 C WAS ENGINEERED TO U.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.27 Å3/Da / Density % sol: 45.8 % / Description: NONE
Crystal growpH: 7.5
Details: 10MM K-HEPES PH 7.5, 20% PEG 3000, 12MM COHEX, 440MM AMMONIUM ACETATE

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I03 / Wavelength: 0.9763
DetectorType: ADSC CCD / Detector: CCD / Date: May 23, 2010
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9763 Å / Relative weight: 1
ReflectionResolution: 1.6→66.38 Å / Num. obs: 25098 / % possible obs: 96.5 % / Observed criterion σ(I): 0 / Redundancy: 2.9 % / Biso Wilson estimate: 0 Å2 / Rmerge(I) obs: 0.05 / Net I/σ(I): 20.6

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Processing

Software
NameVersionClassification
REFMAC5.5.0109refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: OTHER
Starting model: NONE

Resolution: 1.6→66.38 Å / Cor.coef. Fo:Fc: 0.958 / Cor.coef. Fo:Fc free: 0.949 / SU B: 1.705 / SU ML: 0.06 / Cross valid method: THROUGHOUT / ESU R: 0.099 / ESU R Free: 0.091 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. U VALUES REFINED INDIVIDUALLY, RESIDUES 15, 80, 81 DISORDERED AND NOT MODELED.
RfactorNum. reflection% reflectionSelection details
Rfree0.21075 1268 5.1 %RANDOM
Rwork0.19468 ---
obs0.19554 23747 95.5 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 23.164 Å2
Baniso -1Baniso -2Baniso -3
1-1.02 Å20 Å2-0.5 Å2
2---0.92 Å20 Å2
3----0.11 Å2
Refinement stepCycle: LAST / Resolution: 1.6→66.38 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms0 1364 67 226 1657
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0211571
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.50832455
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg
X-RAY DIFFRACTIONr_dihedral_angle_2_deg
X-RAY DIFFRACTIONr_dihedral_angle_3_deg
X-RAY DIFFRACTIONr_dihedral_angle_4_deg
X-RAY DIFFRACTIONr_chiral_restr0.0670.2320
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.02671
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.5071.53
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it0.80222
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it1.26631568
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it1.8174.52453
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.591→1.633 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.328 72 -
Rwork0.254 1484 -
obs--81.17 %

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