Margarita T. Angelova

ORCID: 0000-0002-0046-9891
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About
Contact & Profiles
Research Areas
  • RNA modifications and cancer
  • Epigenetics and DNA Methylation
  • Cancer-related molecular mechanisms research
  • Cancer-related gene regulation
  • RNA and protein synthesis mechanisms
  • Genetics and Neurodevelopmental Disorders
  • HVDC Systems and Fault Protection
  • Education, Technology, and Economics
  • Genomics and Phylogenetic Studies
  • Library Science and Information Literacy
  • Banking Systems and Strategies
  • RNA Research and Splicing
  • Parasitic Infections and Diagnostics

Laboratoire de Biologie du Développement
2018-2023

Columbia University
2022

Transgene (France)
2019-2021

Sorbonne Université
2019-2021

Institut de Biologie Paris-Seine
2018-2021

Centre National de la Recherche Scientifique
2019-2020

Abstract 2′-O-Methylation (Nm) represents one of the most common RNA modifications. Nm affects structure and function with crucial roles in various RNA-mediated processes ranging from silencing, translation, self versus non-self recognition to viral defense mechanisms. Here, we identify two methyltransferases (Nm-MTases) Drosophila melanogaster (CG7009 CG5220) as functional orthologs yeast TRM7 human FTSJ1. Genetic knockout studies together MALDI-TOF mass spectrometry RiboMethSeq mapping...

10.1093/nar/gkaa002 article EN cc-by Nucleic Acids Research 2020-01-09

tRNA fragments (tRFs) are a class of small non-coding RNAs (sncRNAs) derived from tRNAs. tRFs highly abundant in many cell types including stem cells and cancer cells, found all domains life. Beyond translation control, have several functions ranging transposon silencing to proliferation control. However, the analysis presents specific challenges their biogenesis is not well understood. They very heterogeneous modified by numerous post-transcriptional modifications. Here we describe...

10.3389/fgene.2020.518949 article EN cc-by Frontiers in Genetics 2020-10-09

FTSJ1 is a conserved human 2'-O-methyltransferase (Nm-MTase) that modifies several tRNAs at position 32 and the wobble 34 in anticodon loop. Its loss of function has been linked to X-linked intellectual disability (XLID), more recently cancers. However, molecular mechanisms underlying these pathologies are currently unclear. Here, we report novel pathogenic variant from an patient. Using blood cells derived this patient other affected individuals carrying mutations, performed unbiased...

10.26508/lsa.202201877 article EN cc-by Life Science Alliance 2023-01-31

Abstract DNA methylation plays vital roles in both prokaryotes and eukaryotes. There are three forms of prokaryotes: N 6 -methyladenine (6mA), 4 -methylcytosine (4mC), 5-methylcytosine (5mC). Although many sequencing methods have been developed to sequence specific types methylation, few technologies can be used for efficiently mapping multiple methylation. Here, we present NT-seq all simultaneously. reliably detects known motifs two bacterial genomes identifying de novo motifs. provides a...

10.1186/s13059-022-02689-9 article EN cc-by Genome biology 2022-05-30

Abstract 2’-O-methylation (Nm) represents one of the most common RNA modifications. Nm affects structure and function with crucial roles in various RNA-mediated processes ranging from silencing, translation, self versus non-self recognition to viral defense mechanisms. Here, we identify two novel methyltransferases (Nm-MTases) Drosophila melanogaster (CG7009 CG5220) as functional orthologs yeast TRM7 human FTSJ1, respectively. Genetic knockout studies together MALDI-TOF mass spectrometry...

10.1101/699934 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2019-07-11

Abstract tRNA fragments (tRFs) are a class of small non-coding RNAs (sncRNAs) derived from tRNAs. tRFs highly abundant in many cell types including stem cells and cancer cells, found all domains life. Beyond translation control, have several functions ranging transposon silencing to proliferation control. However, the analysis presents specific challenges their biogenesis is not well understood. They very heterogeneous modified by numerous post-transcriptional modifications. Here we describe...

10.1101/869891 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2019-12-10

ABSTRACT FTSJ1 is a conserved human 2’-O-methyltransferase (Nm-MTase) that modifies several transfer RNAs (tRNAs) at position 32 and the wobble 34 in AntiCodon Loop (ACL). Its loss of function has been linked to Non-Syndromic X-Linked Intellectual Disability (NSXLID), more recently cancers. However, molecular mechanisms underlying these pathologies are currently unclear. Here we report novel pathogenic variant from NSXLID patient. Using blood cells derived this patient other affected...

10.1101/2021.02.06.430044 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-02-08
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