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UBQLN4 Represses Homologous Recombination and Is Overexpressed in Aggressive Tumors.

Cell | 2019

Genomic instability can be a hallmark of both human genetic disease and cancer. We identify a deleterious UBQLN4 mutation in families with an autosomal recessive syndrome reminiscent of genome instability disorders. UBQLN4 deficiency leads to increased sensitivity to genotoxic stress and delayed DNA double-strand break (DSB) repair. The proteasomal shuttle factor UBQLN4 is phosphorylated by ATM and interacts with ubiquitylated MRE11 to mediate early steps of homologous recombination-mediated DSB repair (HRR). Loss of UBQLN4 leads to chromatin retention of MRE11, promoting non-physiological HRR activity in vitro and in vivo. Conversely, UBQLN4 overexpression represses HRR and favors non-homologous end joining. Moreover, we find UBQLN4 overexpressed in aggressive tumors. In line with an HRR defect in these tumors, UBQLN4 overexpression is associated with PARP1 inhibitor sensitivity. UBQLN4 therefore curtails HRR activity through removal of MRE11 from damaged chromatin and thus offers a therapeutic window for PARP1 inhibitor treatment in UBQLN4-overexpressing tumors.

Pubmed ID: 30612738 RIS Download

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This is a list of tools and resources that we have found mentioned in this publication.


ATCC (tool)

RRID:SCR_001672

Global nonprofit biological resource center (BRC) and research organization that provides biological products, technical services and educational programs to private industry, government and academic organizations. Its mission is to acquire, authenticate, preserve, develop and distribute biological materials, information, technology, intellectual property and standards for the advancement and application of scientific knowledge. The primary purpose of ATCC is to use its resources and experience as a BRC to become the world leader in standard biological reference materials management, intellectual property resource management and translational research as applied to biomaterial development, standardization and certification. ATCC characterizes cell lines, bacteria, viruses, fungi and protozoa, as well as develops and evaluates assays and techniques for validating research resources and preserving and distributing biological materials to the public and private sector research communities.

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Goat Anti-Mouse IgG, HRP conjugate (antibody)

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GraphPad Prism (software resource)

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RRID:SCR_001905

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RRID:SCR_002798

Statistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.

View all literature mentions

MaxQuant (software resource)

RRID:SCR_014485

A quantitative proteomics software package for analyzing large-scale mass-spectrometric data sets. It is a set of algorithms that include peak detection and scoring of peptides, mass calibration, database searches for protein identification, protein quantification, and provides summary statistics.

View all literature mentions

Adobe Photoshop (software resource)

RRID:SCR_014199

Software for image processing, analysis, and editing. The software includes features such as touch capabilities, a customizable toolbar, 2D and 3D image merging, and Cloud access and options.

View all literature mentions

Adobe Illustrator (software resource)

RRID:SCR_010279

Vector graphics software to create digital graphics, illustrations, and typography for several types of media: print, web, interactive, video, and mobile.

View all literature mentions

GATK (software resource)

RRID:SCR_001876

A software package to analyze next-generation resequencing data. The toolkit offers a wide variety of tools, with a primary focus on variant discovery and genotyping as well as strong emphasis on data quality assurance. Its robust architecture, powerful processing engine and high-performance computing features make it capable of taking on projects of any size. This software library makes writing efficient analysis tools using next-generation sequencing data very easy, and second it's a suite of tools for working with human medical resequencing projects such as 1000 Genomes and The Cancer Genome Atlas. These tools include things like a depth of coverage analyzers, a quality score recalibrator, a SNP/indel caller and a local realigner. (entry from Genetic Analysis Software)

View all literature mentions

R Project for Statistical Computing (software resource)

RRID:SCR_001905

Software environment and programming language for statistical computing and graphics. R is integrated suite of software facilities for data manipulation, calculation and graphical display. Can be extended via packages. Some packages are supplied with the R distribution and more are available through CRAN family.It compiles and runs on wide variety of UNIX platforms, Windows and MacOS.

View all literature mentions

Python Programming Language (software resource)

RRID:SCR_008394

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U2OS (cell line)

RRID:CVCL_0042

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View all literature mentions

SK-N-DZ (cell line)

RRID:CVCL_1701

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View all literature mentions

SK-N-AS (cell line)

RRID:CVCL_1700

Cell line SK-N-AS is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

SK-N-SH (cell line)

RRID:CVCL_0531

Cell line SK-N-SH is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

SK-N-BE(2)-C (cell line)

RRID:CVCL_0529

Cell line SK-N-BE(2)-C is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

CHP-212 (cell line)

RRID:CVCL_1125

Cell line CHP-212 is a Cancer cell line with a species of origin Homo sapiens (Human)

View all literature mentions

A1Up (A333) (antibody)

RRID:AB_2009286

This monoclonal targets A1Up (A333)

View all literature mentions

Tubulin antibody [TUB-1A2] (antibody)

RRID:AB_2210526

This monoclonal targets TUBB2A

View all literature mentions

Anti-UBQLN4 (antibody)

RRID:AB_10635383

This polyclonal targets UBQLN4

View all literature mentions

Anti-Rad51 (Ab-1) Rabbit pAb (antibody)

RRID:AB_2238184

This polyclonal targets RAD51

View all literature mentions

Goat Anti-Mouse IgG, HRP conjugate (antibody)

RRID:AB_390192

This polyclonal secondary targets IgG

View all literature mentions

Purified Rabbit Anti- Active Caspase-3 Clone C92-605 (antibody)

RRID:AB_397274

This monoclonal targets Caspase 3, Active Form

View all literature mentions

mouse-IgG-control-human (antibody)

RRID:AB_737182

This unknown targets mouse-IgG-control

View all literature mentions

H3-celegans (antibody)

RRID:AB_302613

This polyclonal targets H3

View all literature mentions

Phospho KAP-1 (S824) Antibody (antibody)

RRID:AB_669740

This unknown targets Phospho-KAP-1 (Ser824)

View all literature mentions

OctA-Probe (H-5) (antibody)

RRID:AB_2017593

This monoclonal targets OctA-Probe (H-5)

View all literature mentions

Anti-53BP1, clone BP13 (antibody)

RRID:AB_11212586

This monoclonal targets 53BP1 clone BP13

View all literature mentions