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- PDB-4faq: Structure of Oceanobacillus iheyensis group II intron in the pres... -

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Basic information

Entry
Database: PDB / ID: 4faq
TitleStructure of Oceanobacillus iheyensis group II intron in the presence of K+, Ca2+ and 5'-exon
ComponentsGroup IIC intron
KeywordsRNA / ribozyme / self-splicing / retrotransposition / spliceosome
Function / homology: / SPERMINE / RNA / RNA (> 10) / RNA (> 100)
Function and homology information
Biological speciesOceanobacillus iheyensis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.11 Å
AuthorsMarcia, M. / Pyle, A.M.
CitationJournal: Cell(Cambridge,Mass.) / Year: 2012
Title: Visualizing Group II Intron Catalysis through the Stages of Splicing.
Authors: Marcia, M. / Pyle, A.M.
History
DepositionMay 22, 2012Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 14, 2012Provider: repository / Type: Initial release
Revision 1.1Sep 13, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_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

Downloads & links

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Assembly

Deposited unit
A: Group IIC intron
hetero molecules


Theoretical massNumber of molelcules
Total (without water)132,12753
Polymers128,5491
Non-polymers3,57852
Water81145
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)89.835, 95.715, 225.737
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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RNA chain , 1 types, 1 molecules A

#1: RNA chain Group IIC intron


Mass: 128549.094 Da / Num. of mol.: 1 / Fragment: domains 1-5 / Source method: obtained synthetically / Details: in vitro transcription / Source: (synth.) Oceanobacillus iheyensis (bacteria)

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Non-polymers , 5 types, 97 molecules

#2: Chemical...
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 24 / Source method: obtained synthetically / Formula: Ca
#3: Chemical
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 20 / Source method: obtained synthetically / Formula: K
#4: Chemical ChemComp-SPM / SPERMINE


Mass: 202.340 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H26N4
#5: Chemical
ChemComp-EPE / 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID / HEPES


Mass: 238.305 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C8H18N2O4S / Comment: pH buffer*YM
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 45 / Source method: isolated from a natural source / Formula: H2O

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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: 3.77 Å3/Da / Density % sol: 67.42 %
Crystal growTemperature: 303 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 100 mM potassium acetate, 100 mM potassium chloride, 100 mM calcium chloride, 50 mM HEPES sodium, pH 7.0, 3% PEG8000, VAPOR DIFFUSION, HANGING DROP, temperature 303K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 24-ID-C / Wavelength: 0.9795 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Nov 28, 2011
RadiationMonochromator: double crystal Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9795 Å / Relative weight: 1
ReflectionResolution: 3.11→50 Å / Num. all: 35519 / Num. obs: 35518 / Redundancy: 3.5 % / Rmerge(I) obs: 0.063 / Net I/σ(I): 12.1
Reflection shellResolution: 3.11→3.19 Å / Redundancy: 3.5 % / Rmerge(I) obs: 0.605 / Mean I/σ(I) obs: 2 / % possible all: 99.6

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Processing

Software
NameVersionClassification
ADSCdata collection
PHASERphasing
REFMAC5.6.0117refinement
XDSdata reduction
XSCALEdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3IGI

3igi


Resolution: 3.11→46.82 Å / Cor.coef. Fo:Fc: 0.946 / Cor.coef. Fo:Fc free: 0.906 / SU B: 38.062 / SU ML: 0.322 / Cross valid method: THROUGHOUT / ESU R Free: 0.415 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
RfactorNum. reflection% reflectionSelection details
Rfree0.25833 1778 5 %RANDOM
Rwork0.20116 ---
obs0.20396 33742 99.38 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 116.701 Å2
Baniso -1Baniso -2Baniso -3
1-1.44 Å20 Å20 Å2
2---0.8 Å20 Å2
3----0.65 Å2
Refinement stepCycle: LAST / Resolution: 3.11→46.82 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms0 8478 132 45 8655
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.0119584
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg2.4831.47814920
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_restr0.1420.21588
X-RAY DIFFRACTIONr_gen_planes_refined0.0110.024128
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_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 3.112→3.192 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.396 120 -
Rwork0.322 2255 -
obs--98.92 %
Refinement TLS params.Method: refined / Origin x: -24.902 Å / Origin y: 8.876 Å / Origin z: -25.422 Å
111213212223313233
T0.3127 Å20.0306 Å20.1043 Å2-0.2463 Å20.0444 Å2--0.2291 Å2
L0.7033 °20.8579 °2-0.8959 °2-2.368 °2-0.9805 °2--1.6308 °2
S-0.1888 Å °0.1842 Å °-0.1381 Å °-0.762 Å °0.1186 Å °-0.2174 Å °0.2099 Å °-0.021 Å °0.0702 Å °

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