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- PDB-6jxc: Tel1 kinase butterfly symmetric dimer -

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Basic information

Entry
Database: PDB / ID: 6jxc
TitleTel1 kinase butterfly symmetric dimer
ComponentsSerine/threonine-protein kinase TEL1
KeywordsTRANSFERASE / kinase / responds to DNA double-strand breaks
Function / homology
Function and homology information


Pexophagy / DNA Damage/Telomere Stress Induced Senescence / Sensing of DNA Double Strand Breaks / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / telomeric DNA binding / signal transduction in response to DNA damage / negative regulation of TORC1 signaling / telomere maintenance / DNA damage checkpoint signaling / double-strand break repair ...Pexophagy / DNA Damage/Telomere Stress Induced Senescence / Sensing of DNA Double Strand Breaks / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / telomeric DNA binding / signal transduction in response to DNA damage / negative regulation of TORC1 signaling / telomere maintenance / DNA damage checkpoint signaling / double-strand break repair / chromatin organization / chromosome, telomeric region / non-specific serine/threonine protein kinase / protein kinase activity / phosphorylation / DNA repair / protein serine kinase activity / protein serine/threonine kinase activity / DNA damage response / mitochondrion / ATP binding / nucleus
Similarity search - Function
Telomere-length maintenance and DNA damage repair / Serine/threonine-protein kinase ATM, plant / ATM, catalytic domain / Telomere-length maintenance and DNA damage repair / Telomere-length maintenance and DNA damage repair / FATC domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. ...Telomere-length maintenance and DNA damage repair / Serine/threonine-protein kinase ATM, plant / ATM, catalytic domain / Telomere-length maintenance and DNA damage repair / Telomere-length maintenance and DNA damage repair / FATC domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Serine/threonine-protein kinase TEL1
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.1 Å
AuthorsXin, J.
Funding support China, 1items
OrganizationGrant numberCountry
National Basic Research Program of China (973 Program) China
CitationJournal: Cell Res / Year: 2019
Title: Structural basis of allosteric regulation of Tel1/ATM kinase.
Authors: Jiyu Xin / Zhu Xu / Xuejuan Wang / Yanhua Tian / Zhihui Zhang / Gang Cai /
Abstract: ATM/Tel1 is an apical kinase that orchestrates the multifaceted DNA damage response. Mutations of ATM/Tel1 are associated with ataxia telangiectasia syndrome. Here, we report cryo-EM structures of ...ATM/Tel1 is an apical kinase that orchestrates the multifaceted DNA damage response. Mutations of ATM/Tel1 are associated with ataxia telangiectasia syndrome. Here, we report cryo-EM structures of symmetric dimer (4.1 Å) and asymmetric dimer (4.3 Å) of Saccharomyces cerevisiae Tel1. In the symmetric state, the side chains in Tel1 C-terminus (residues 1129-2787) are discernible and an atomic model is built. The substrate binding groove is completely embedded in the symmetric dimer by the intramolecular PRD and intermolecular LID domains. Point mutations in these domains sensitize the S. cerevisiae cells to DNA damage agents and hinder Tel1 activation due to reduced binding affinity for its activator Xrs2/Nbs1. In the asymmetric state, one monomer becomes more compact in two ways: the kinase N-lobe moves down and the Spiral of α-solenoid moves upwards, which resemble the conformational changes observed in active mTOR. The accessibility of the activation loop correlates with the synergistic conformational disorders in the TRD1-TRD2 linker, FATC and PRD domains, where critical post-translational modifications and activating mutations are coincidently condensed. This study reveals a tunable allosteric network in ATM/Tel1, which is important for substrate recognition, recruitment and efficient phosphorylation.
History
DepositionApr 23, 2019Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 3, 2019Provider: repository / Type: Initial release
Revision 1.1Jul 10, 2019Group: Data collection / Structure summary / Category: struct / Item: _struct.title
Revision 1.2Aug 14, 2019Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.3Nov 6, 2019Group: Data collection / Other / Category: atom_sites / cell
Item: _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] ..._atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][3] / _cell.Z_PDB
Revision 1.4Mar 27, 2024Group: Author supporting evidence / Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_audit_support
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_audit_support.funding_organization

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Assembly

Deposited unit
A: Serine/threonine-protein kinase TEL1


Theoretical massNumber of molelcules
Total (without water)321,8881
Polymers321,8881
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area0 Å2
ΔGint0 kcal/mol
Surface area122990 Å2

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Components

#1: Protein Serine/threonine-protein kinase TEL1 / ATM homolog / DNA-damage checkpoint kinase TEL1 / Telomere length regulation protein 1


Mass: 321888.312 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
References: UniProt: P38110, non-specific serine/threonine protein kinase

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Tel1 kinase butterfly dimer / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / Source: NATURAL
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 4.1 Å / Num. of particles: 83185 / Symmetry type: POINT
RefinementHighest resolution: 4.1 Å

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