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- PDB-6c8i: RNA-activated 2-AIpG monomer complex, 5 min soaking -

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Basic information

Entry
Database: PDB / ID: 6c8i
TitleRNA-activated 2-AIpG monomer complex, 5 min soaking
ComponentsRNA (5'-R(*(LCC)P*(LCC)P*(LCC)P*(LCG)P*AP*CP*UP*UP*AP*AP*GP*UP*CP*G)-3')
KeywordsRNA / activated monomer
Function / homologyChem-EQ4 / RNA / RNA (> 10)
Function and homology information
Biological speciessynthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.77 Å
AuthorsZhang, W. / Szostak, J.W.
Funding support United States, 1items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: Elife / Year: 2018
Title: Crystallographic observation of nonenzymatic RNA primer extension.
Authors: Zhang, W. / Walton, T. / Li, L. / Szostak, J.W.
History
DepositionJan 24, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 30, 2018Provider: repository / Type: Initial release
Revision 1.1Oct 31, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.page_first / _citation.pdbx_database_id_PubMed ..._citation.page_first / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
Revision 1.2Nov 20, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.3Oct 4, 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 / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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.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_conn.ptnr2_symmetry

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: RNA (5'-R(*(LCC)P*(LCC)P*(LCC)P*(LCG)P*AP*CP*UP*UP*AP*AP*GP*UP*CP*G)-3')
B: RNA (5'-R(*(LCC)P*(LCC)P*(LCC)P*(LCG)P*AP*CP*UP*UP*AP*AP*GP*UP*CP*G)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)10,7878
Polymers9,0262
Non-polymers1,7626
Water34219
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2690 Å2
ΔGint8 kcal/mol
Surface area5930 Å2
MethodPISA
Unit cell
Length a, b, c (Å)43.843, 43.843, 85.219
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number150
Space group name H-MP321
Components on special symmetry positions
IDModelComponents
11A-101-

MG

21B-101-

MG

31A-203-

HOH

41A-209-

HOH

51B-205-

HOH

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Components

#1: RNA chain RNA (5'-R(*(LCC)P*(LCC)P*(LCC)P*(LCG)P*AP*CP*UP*UP*AP*AP*GP*UP*CP*G)-3')


Mass: 4512.804 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical
ChemComp-EQ4 / 5'-O-[(R)-(2-amino-1H-imidazol-1-yl)(hydroxy)phosphoryl]guanosine


Type: RNA linking / Mass: 428.297 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C13H17N8O7P
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 19 / 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: 2.44 Å3/Da / Density % sol: 49.64 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 10% v/v (+/-)-2-Methyl-2,4-pentanediol, 0.040 M Sodium cacodylate trihydrate pH 7.0, 0.012 M Spermine tetrahydrochloride, 0.080 M Sodium chloride, 0.020 M Magnesium chloride hexahydrate

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Data collection

DiffractionMean temperature: 99 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 8.2.2 / Wavelength: 1 Å
DetectorType: MAR CCD 130 mm / Detector: CCD / Date: Oct 25, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.77→50 Å / Num. obs: 9699 / % possible obs: 99.1 % / Redundancy: 7.6 % / CC1/2: 0.947 / Rmerge(I) obs: 0.127 / Rpim(I) all: 0.051 / Rrim(I) all: 0.137 / Χ2: 0.952 / Net I/σ(I): 14.19
Reflection shellResolution: 1.77→1.83 Å / Redundancy: 7.2 % / Rmerge(I) obs: 0.68 / Mean I/σ(I) obs: 1.95 / Num. unique obs: 965 / CC1/2: 0.836 / Rpim(I) all: 0.265 / Rrim(I) all: 0.732 / Χ2: 0.484 / % possible all: 99.8

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Processing

Software
NameVersionClassification
REFMAC5.8.0135refinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5DHC

5dhc


Resolution: 1.77→50 Å / Cor.coef. Fo:Fc: 0.953 / Cor.coef. Fo:Fc free: 0.937 / SU B: 2.966 / SU ML: 0.094 / Cross valid method: THROUGHOUT / ESU R: 0.142 / ESU R Free: 0.144 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.28295 463 4.8 %RANDOM
Rwork0.23037 ---
obs0.23272 9234 98.69 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 31.614 Å2
Baniso -1Baniso -2Baniso -3
1--0 Å2-0 Å2-0 Å2
2---0 Å20 Å2
3---0.01 Å2
Refinement stepCycle: 1 / Resolution: 1.77→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms0 598 118 19 735
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0250.017792
X-RAY DIFFRACTIONr_bond_other_d0.0740.024356
X-RAY DIFFRACTIONr_angle_refined_deg3.5852.0141224
X-RAY DIFFRACTIONr_angle_other_deg3.7853.279848
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_restr0.3480.2138
X-RAY DIFFRACTIONr_gen_planes_refined0.0180.021424
X-RAY DIFFRACTIONr_gen_planes_other0.0030.022160
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_mcangle_other
X-RAY DIFFRACTIONr_scbond_it3.0983.321792
X-RAY DIFFRACTIONr_scbond_other3.0963.328793
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other4.634.9641225
X-RAY DIFFRACTIONr_long_range_B_refined5.38233.11159
X-RAY DIFFRACTIONr_long_range_B_other5.38733.1491158
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.767→1.812 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.231 27 -
Rwork0.229 681 -
obs--97.79 %

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