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- PDB-6fb5: Crystal Structure of a Tailored I-CreI Homing Endonuclease Protei... -

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Basic information

Entry
Database: PDB / ID: 6fb5
TitleCrystal Structure of a Tailored I-CreI Homing Endonuclease Protein (3115 variant) in complex with an altered version of its target DNA (Haemoglobin beta subunit gene) at 5NNN region in the presence of Magnesium
Components
  • (I-CreI monomer ...) x 2
  • DNA (5'-D(*TP*CP*AP*GP*AP*CP*TP*TP*GP*TP*CP*CP*AP*CP*AP*GP*GP*AP*GP*TP*CP*AP*GP*A)-3')
  • DNA (5'-D(*TP*CP*TP*GP*AP*CP*TP*CP*CP*TP*GP*TP*GP*GP*AP*CP*AP*AP*GP*TP*CP*TP*GP*A)-3')
KeywordsDNA BINDING PROTEIN / Chlamydomonas reinhardtii
Function / homology
Function and homology information


intron homing / chloroplast / endonuclease activity / Hydrolases; Acting on ester bonds / identical protein binding / metal ion binding
Similarity search - Function
LAGLIDADG endonuclease / Homing endonucleases / Endonuclease I-creI / Homing endonuclease, LAGLIDADG / Homing endonuclease / Roll / Alpha Beta
Similarity search - Domain/homology
ACETATE ION / S-1,2-PROPANEDIOL / DNA / DNA (> 10) / DNA endonuclease I-CreI
Similarity search - Component
Biological speciesChlamydomonas reinhardtii (plant)
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsMolina, R. / Prieto, J.
CitationJournal: Sci Rep / Year: 2018
Title: Understanding the indirect DNA read-out specificity of I-CreI Meganuclease.
Authors: Prieto, J. / Redondo, P. / Lopez-Mendez, B. / D'Abramo, M. / Merino, N. / Blanco, F.J. / Duchateau, P. / Montoya, G. / Molina, R.
History
DepositionDec 18, 2017Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 18, 2018Provider: repository / Type: Initial release
Revision 1.1Jan 17, 2024Group: 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
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_asym_id / _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.ptnr3_auth_asym_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_asym_id / _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_asym_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_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: I-CreI monomer A
B: I-CreI monomer B
D: DNA (5'-D(*TP*CP*AP*GP*AP*CP*TP*TP*GP*TP*CP*CP*AP*CP*AP*GP*GP*AP*GP*TP*CP*AP*GP*A)-3')
F: DNA (5'-D(*TP*CP*TP*GP*AP*CP*TP*CP*CP*TP*GP*TP*GP*GP*AP*CP*AP*AP*GP*TP*CP*TP*GP*A)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)50,08310
Polymers49,8514
Non-polymers2326
Water2,180121
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: mass spectrometry
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area11850 Å2
ΔGint-99 kcal/mol
Surface area17700 Å2
MethodPISA
Unit cell
Length a, b, c (Å)45.290, 68.005, 83.030
Angle α, β, γ (deg.)90.00, 96.55, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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I-CreI monomer ... , 2 types, 2 molecules AB

#1: Protein I-CreI monomer A


Mass: 17528.154 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Chlamydomonas reinhardtii (plant) / Production host: Escherichia coli (E. coli) / References: UniProt: P05725*PLUS
#2: Protein I-CreI monomer B


Mass: 17583.205 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Chlamydomonas reinhardtii (plant) / Production host: Escherichia coli (E. coli) / References: UniProt: P05725*PLUS

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DNA chain , 2 types, 2 molecules DF

#3: DNA chain DNA (5'-D(*TP*CP*AP*GP*AP*CP*TP*TP*GP*TP*CP*CP*AP*CP*AP*GP*GP*AP*GP*TP*CP*AP*GP*A)-3')


Mass: 7378.781 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#4: DNA chain DNA (5'-D(*TP*CP*TP*GP*AP*CP*TP*CP*CP*TP*GP*TP*GP*GP*AP*CP*AP*AP*GP*TP*CP*TP*GP*A)-3')


Mass: 7360.752 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 4 types, 127 molecules

#5: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Mg
#6: Chemical ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H3O2
#7: Chemical ChemComp-PGO / S-1,2-PROPANEDIOL


Mass: 76.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O2
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 121 / 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: 2.55 Å3/Da / Density % sol: 51.73 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop
Details: 0.1 M calcium acetate, 0.1 M sodium acetate pH 4.6-5.4, 33-40% (v/v) 1,2-propanediol

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SLS / Beamline: X06SA / Wavelength: 1 Å
DetectorType: PSI PILATUS 6M / Detector: PIXEL / Date: Dec 19, 2012
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.2→41.24 Å / Num. obs: 47710 / % possible obs: 99.5 % / Redundancy: 3.3 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 8.9
Reflection shellResolution: 2.2→2.32 Å / Rmerge(I) obs: 0.54

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Processing

Software
NameVersionClassification
PHENIX1.8.1_1168refinement
XDSdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1G9Y
Resolution: 2.2→37.733 Å / SU ML: 0.24 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 23.38
RfactorNum. reflection% reflection
Rfree0.2191 3761 7.88 %
Rwork0.1887 --
obs0.1911 47710 95.5 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Refinement stepCycle: LAST / Resolution: 2.2→37.733 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2477 978 13 121 3589
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0213657
X-RAY DIFFRACTIONf_angle_d0.8215183
X-RAY DIFFRACTIONf_dihedral_angle_d20.3991424
X-RAY DIFFRACTIONf_chiral_restr0.043583
X-RAY DIFFRACTIONf_plane_restr0.003475
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.2-2.22790.348960.27261186X-RAY DIFFRACTION70
2.2279-2.25720.27761320.261591X-RAY DIFFRACTION90
2.2572-2.28810.28991320.26181529X-RAY DIFFRACTION92
2.2881-2.32080.35381390.25671647X-RAY DIFFRACTION97
2.3208-2.35540.30281420.24961664X-RAY DIFFRACTION98
2.3554-2.39220.31971420.23631698X-RAY DIFFRACTION98
2.3922-2.43140.29161380.23551637X-RAY DIFFRACTION97
2.4314-2.47330.27821450.23581654X-RAY DIFFRACTION96
2.4733-2.51830.27381400.23661666X-RAY DIFFRACTION97
2.5183-2.56670.31721360.23181630X-RAY DIFFRACTION96
2.5667-2.61910.26231490.23651653X-RAY DIFFRACTION97
2.6191-2.67610.26621410.22091624X-RAY DIFFRACTION95
2.6761-2.73830.25741350.21951601X-RAY DIFFRACTION95
2.7383-2.80670.2511410.23231640X-RAY DIFFRACTION94
2.8067-2.88260.29151390.22841629X-RAY DIFFRACTION98
2.8826-2.96740.28561430.21651705X-RAY DIFFRACTION98
2.9674-3.06310.25631450.21581676X-RAY DIFFRACTION98
3.0631-3.17260.21141420.20751623X-RAY DIFFRACTION96
3.1726-3.29950.22191410.18421642X-RAY DIFFRACTION97
3.2995-3.44960.20411460.16421662X-RAY DIFFRACTION96
3.4496-3.63130.19881320.16471590X-RAY DIFFRACTION95
3.6313-3.85860.17641470.17011681X-RAY DIFFRACTION98
3.8586-4.15620.19711430.14821676X-RAY DIFFRACTION98
4.1562-4.57380.14521420.1461663X-RAY DIFFRACTION98
4.5738-5.23420.1811460.16011631X-RAY DIFFRACTION95
5.2342-6.58880.16681410.18521667X-RAY DIFFRACTION98
6.5888-37.73810.20141460.15851684X-RAY DIFFRACTION98
Refinement TLS params.Method: refined / Origin x: 2.2803 Å / Origin y: 15.9742 Å / Origin z: 102.4959 Å
111213212223313233
T0.1002 Å2-0.004 Å20.0233 Å2-0.126 Å20.0147 Å2--0.1177 Å2
L1.7205 °2-0.4469 °20.5751 °2-0.8694 °2-0.3636 °2--1.371 °2
S-0.0062 Å °-0.0206 Å °0.1117 Å °0.0528 Å °-0.1346 Å °-0.0242 Å °-0.018 Å °0.1097 Å °0.03 Å °
Refinement TLS groupSelection details: all

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