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- PDB-2ri3: Crystal structure of the 3-MBT repeats from human L3MBTL1 with N3... -

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Basic information

Entry
Database: PDB / ID: 2ri3
TitleCrystal structure of the 3-MBT repeats from human L3MBTL1 with N358Q point mutation
ComponentsLethal(3)malignant brain tumor-like protein
KeywordsTRANSCRIPTION / beta barrel / Alternative splicing / Chromatin regulator / DNA-binding / Metal-binding / Nucleus / Repressor / Transcription regulation / Zinc / Zinc-finger
Function / homology
Function and homology information


SAM domain binding / chromatin lock complex / constitutive heterochromatin formation / regulation of megakaryocyte differentiation / histone H4K20me2 reader activity / regulation of mitotic nuclear division / : / hemopoiesis / nucleosome binding / condensed chromosome ...SAM domain binding / chromatin lock complex / constitutive heterochromatin formation / regulation of megakaryocyte differentiation / histone H4K20me2 reader activity / regulation of mitotic nuclear division / : / hemopoiesis / nucleosome binding / condensed chromosome / Regulation of TP53 Activity through Methylation / heterochromatin formation / chromatin organization / histone binding / regulation of cell cycle / negative regulation of DNA-templated transcription / chromatin binding / chromatin / zinc ion binding / nucleoplasm / identical protein binding / nucleus
Similarity search - Function
: / : / Zinc finger, C2H2C-type superfamily / Zinc finger, C2HC type / Zinc finger, C2H2C-type / Zinc finger CCHHC-type profile. / Mbt repeat / MBT repeat profile. / Present in Drosophila Scm, l(3)mbt, and vertebrate SCML2 / : ...: / : / Zinc finger, C2H2C-type superfamily / Zinc finger, C2HC type / Zinc finger, C2H2C-type / Zinc finger CCHHC-type profile. / Mbt repeat / MBT repeat profile. / Present in Drosophila Scm, l(3)mbt, and vertebrate SCML2 / : / mbt repeat / SH3 type barrels. - #140 / SH3 type barrels. / Roll / Mainly Beta
Similarity search - Domain/homology
DI(HYDROXYETHYL)ETHER / Lethal(3)malignant brain tumor-like protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsLi, H. / Patel, D.J.
CitationJournal: Mol.Cell / Year: 2007
Title: Structural Basis for Lower Lysine Methylation State-Specific Readout by MBT Repeats of L3MBTL1 and an Engineered PHD Finger.
Authors: Li, H. / Fischle, W. / Wang, W. / Duncan, E.M. / Liang, L. / Murakami-Ishibe, S. / Allis, C.D. / Patel, D.J.
History
DepositionOct 10, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 11, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Oct 20, 2021Group: Database references / Derived calculations / Category: database_2 / struct_conn / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details
Revision 1.3Aug 30, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.4Nov 15, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Lethal(3)malignant brain tumor-like protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,8142
Polymers36,7081
Non-polymers1061
Water7,602422
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)86.001, 90.732, 58.498
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212

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Components

#1: Protein Lethal(3)malignant brain tumor-like protein / L3 / mbt-like / L3 / mbt protein homolog / H-l3 / mbt protein / H-L3 / MBT / L3MBTL1


Mass: 36707.984 Da / Num. of mol.: 1 / Fragment: Repeates MBT-1, MBT-2, MBT-3; residues 206-519 / Mutation: N358Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: L3MBTL, KIAA0681, L3MBT / Plasmid: pGex6p / Production host: Escherichia coli (E. coli) / Strain (production host): Rosetta2 / References: UniProt: Q9Y468
#2: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H10O3
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 422 / 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: 3.11 Å3/Da / Density % sol: 60.43 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6
Details: 7.5% PEG10K, 0.1 M Tris-Maleate pH 6.0, 0.1 M ammonium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH3R / Wavelength: 1.54 Å
DetectorType: RIGAKU RAXIS HTC / Detector: IMAGE PLATE / Date: Jul 11, 2007
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2→20 Å / Num. all: 31613 / Num. obs: 31613 / % possible obs: 100 % / Observed criterion σ(F): -3 / Observed criterion σ(I): -3 / Redundancy: 6.7 % / Biso Wilson estimate: 31.3 Å2 / Rmerge(I) obs: 0.059 / Rsym value: 0.059 / Net I/σ(I): 32.9
Reflection shellResolution: 2→2.07 Å / Redundancy: 6.5 % / Rmerge(I) obs: 0.422 / Mean I/σ(I) obs: 4.6 / Num. unique all: 3105 / Rsym value: 0.422 / % possible all: 100

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Processing

Software
NameVersionClassification
CrystalCleardata collection
MOLREPphasing
CNS1.1refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 2RHY

2rhy


Resolution: 2→20 Å / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.248 1817 -random
Rwork0.213 ---
all-31595 --
obs-30390 96.2 %-
Displacement parametersBiso mean: 36.4 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.29 Å0.25 Å
Luzzati d res low-5 Å
Luzzati sigma a0.25 Å0.23 Å
Refinement stepCycle: LAST / Resolution: 2→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2573 0 0 429 3002
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_angle_deg1.36
X-RAY DIFFRACTIONc_bond_d0.006
LS refinement shellResolution: 2→2.07 Å
RfactorNum. reflection% reflection
Rfree0.298 181 -
Rwork0.286 --
obs-2830 90.9 %

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