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  1. Article

    Open Access

    A TRIM21-based bioPROTAC highlights the therapeutic benefit of HuR degradation

    Human antigen R (HuR) is a ubiquitously expressed RNA-binding protein, which functions as an RNA regulator. Overexpression of HuR correlates with high grade tumours and poor patient prognosis, implicating it a...

    Alice Fletcher, Dean Clift, Emma de Vries, Sergio Martinez Cuesta in Nature Communications (2023)

  2. Article

    Open Access

    Genome surveillance by HUSH-mediated silencing of intronless mobile elements

    All life forms defend their genome against DNA invasion. Eukaryotic cells recognize incoming DNA and limit its transcription through repressive chromatin modifications. The human silencing hub (HUSH) complex t...

    Marta Seczynska, Stuart Bloor, Sergio Martinez Cuesta, Paul J. Lehner in Nature (2022)

  3. Article

    Open Access

    RNA G-quadruplex structures control ribosomal protein production

    Four-stranded G-quadruplex (G4) structures form from guanine-rich tracts, but the extent of their formation in cellular RNA and details of their role in RNA biology remain poorly defined. Herein, we first deli...

    Dhaval Varshney, Sergio Martinez Cuesta, Barbara Herdy in Scientific Reports (2021)

  4. Article

    Open Access

    Chemical profiling of DNA G-quadruplex-interacting proteins in live cells

    DNA–protein interactions regulate critical biological processes. Identifying proteins that bind to specific, functional genomic loci is essential to understand the underlying regulatory mechanisms on a molecul...

    **aoyun Zhang, Jochen Spiegel, Sergio Martínez Cuesta, Santosh Adhikari in Nature Chemistry (2021)

  5. Article

    Open Access

    G-quadruplexes are transcription factor binding hubs in human chromatin

    The binding of transcription factors (TF) to genomic targets is critical in the regulation of gene expression. Short, double-stranded DNA sequence motifs are routinely implicated in TF recruitment, but many qu...

    Jochen Spiegel, Sergio Martínez Cuesta, Santosh Adhikari in Genome Biology (2021)

  6. No Access

    Article

    Sequencing abasic sites in DNA at single-nucleotide resolution

    In DNA, the loss of a nucleobase by hydrolysis generates an abasic site. Formed as a result of DNA damage, as well as a key intermediate during the base excision repair pathway, abasic sites are frequent DNA l...

    Zheng J. Liu, Sergio Martínez Cuesta, Pieter van Delft in Nature Chemistry (2019)

  7. No Access

    Article

    5-Formylcytosine organizes nucleosomes and forms Schiff base interactions with histones in mouse embryonic stem cells

    Nucleosomes are the basic unit of chromatin that help the packaging of genetic material while controlling access to the genetic information. The underlying DNA sequence, together with transcription-associated ...

    Eun-Ang Raiber, Guillem Portella, Sergio Martínez Cuesta in Nature Chemistry (2018)

  8. No Access

    Article

    DNA G-quadruplex structures mold the DNA methylome

    Control of DNA methylation level is critical for gene regulation, and the factors that govern hypomethylation at CpG islands (CGIs) are still being uncovered. Here, we provide evidence that G-quadruplex (G4) D...

    Shi-Qing Mao, Avazeh T. Ghanbarian, Jochen Spiegel in Nature Structural & Molecular Biology (2018)

  9. Article

    Open Access

    Base resolution maps reveal the importance of 5-hydroxymethylcytosine in a human glioblastoma

    Aberrant genetic and epigenetic variations drive malignant transformation and are hallmarks of cancer. Using PCR-free sample preparation we achieved the first in-depth whole genome (hydroxyl)-methylcytosine, s...

    Eun-Ang Raiber, Dario Beraldi, Sergio Martínez Cuesta in npj Genomic Medicine (2017)

  10. No Access

    Article

    EC-BLAST: a tool to automatically search and compare enzyme reactions

    EC-BLAST is a Web-based tool allowing quantitative similarity searches between enzymes at the levels of bond-change, reaction-center or reaction-structure similarity. The tool may help improve the annotation o...

    Syed Asad Rahman, Sergio Martinez Cuesta, Nicholas Furnham in Nature Methods (2014)