Brazilian scientist doing science on DNA damage tolerance in the US 🇧🇷👩‍🔬🇺🇸 • MSc, PhD • Currently a postdoc @WoodgateLab at NICHD/NIH •

Joined February 2023
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We’ve been calling RecA730 “constitutively active”… but what does that really mean? In our new @repair_dna @Sciencedirect paper, we show: SOS is induced without damage, but not fully ON in lexA⁺. It’s not ON vs OFF… but how ON it is! Read more here: sciencedirect.com/science/ar…

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Marcela, PhD retweeted
For all DNA repair and mutagenesis enthusiasts: the 7th edition of Fundamental Aspects of DNA Repair and Mutagenesis (VII FARM-DNA) is coming!🧬🛠 Registrations are open until July 31! To register and submit your abstract, visit: farmdna2025.com.br/ See you there! 😉
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Ever read a drug label and checked its mechanism of action? That’s basic research! And without government funding for this science, there are no safe and effective medicines for your illness. Cutting funding means cutting treatments.
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My lab at UVA is looking to hire a Postdoc to study mechanisms of DNA repair in chromatin using biochemical, biophysical, and structural biology approaches! Feel free to share with anyone you think may be interested. jobs.virginia.edu/us/en/job/…

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19 Jul 2024
Excited to share our new publication in @repair_dna @Elsevier_Sci! We reveal the roles of Polɩ & Polκ in TMZ resistance in MGMT-deficient glioblastoma. Targeting these enzymes may boost TMZ's effectiveness. Huge thanks to Dr. Menck & @WoodgateLab for their support!!
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19 Jul 2024
You can find the paper here, as an open access: sciencedirect.com/science/ar…
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Marcela, PhD retweeted
Introducing Chromo, our new package for performing differential analysis in chromosome regions. Chromo works with any type of quantitative data, including RNA-seq, single-cell RNA-seq, ATAC-seq, ChIP-seq, and more. It will be available soon
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10 Jul 2024
Honored to received the FARE for the 2025 competition at NIH! 🎉 Proud to be one of the 15 @NICHD_NIH winners. Thanks to @NIH FelCom and @NIH_OITE for their support! 🎊
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26 Jun 2024
A agência de financiamento a pesquisa de São Paulo (FAPESP) anunciou um reajuste de até 45% nas bolsas. Mas não é só isso, agora quem tiver doutorado concluído e bolsa FAPESP vai ter também ressarcimento de previdência social! Que mudança importante para a carreira no Brasil ❤️
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26 Jun 2024
Corrigindo: pra carreira em São Paulo. Ainda esperamos que as agências federais possam acompanhar o passo, bem como as questões salariais pra professores em federais e estaduais! Pq não adianta nada melhorar o salário de pós doc, se o passo seguinte como professor não acompanha..
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Writing the discussion section of your paper
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The importance of stupidity in scientific research
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16 Jun 2024
Kicking off the GRC Mutagenesis meeting today in Waterville Valley. Looking forward to insightful discussions and new connections. 😊
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Regular abstract submissions for #EMGS2024 are being accepted through Wednesday, May 15th! Accepted abstracts will be published in a special issue of EMM. Late breaking abstracts will be accepted through August 15th. Submit an Abstract Now: app.oxfordabstracts.com/stag…
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Such a pleasure to spend the past week at Myron’s lab learning new things ♡ going back home and ready to transform and apply it at @WoodgateLab 🧬
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Marcela, PhD retweeted
From AI to the Y chromosome (and everything in between) Our editors pick their favorite research articles from 2023 go.nature.com/3uMSHnm rdcu.be/duKJ3
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Marcela, PhD retweeted
A list of papers that were rejected before going viral ( = winning a Nobel Prize). It just shows how #science works sometimes. ▫️ 1. Richard Ernst, Chemistry (1991), for NMR spectroscopy The paper that described our achievements was rejected twice by the Journal of Chemical Physics to be finally accepted and published in the Review of Scientific Instruments. ▫️ 2. Andre Geim, Physics (2010), for graphene “First, we submitted the manuscript to Nature. It was rejected and, when further information requested by referees was added, rejected again. According to one referee, our report did 'not constitute a sufficient scientific advance'." ▫️ 3. Paul Boyer, Chemistry (1997), for enzymatic mechanisms underlying the synthesis of ATP His proposed resolution of a major unsolved problem in biochemistry threatened to "change the paradigm," Boyer remembers, and "the leading journal" in his field - The Journal of Biological Chemistry - declined to publish his work. ▫️ 4. Herbert Kroemer, Physics (2000), for semiconductor heterostructures "I wrote up the idea and submitted the paper to Applied Physics Letters, where it was rejected. I was talked into not fighting the rejection, but to submit it to the Proceedings of the IEEE, where it was published, but ignored. I also wrote a patent, which is probably a better paper than the one in Proc. IEEE." ▫️ 5. John Polanyi, Chemistry (1997), for describing the dynamics of chemical elementary processes PRL rejected the paper as lacking scientific interest. Shortly thereafter they rejected T. Maiman's report of the first operating laser, on the same grounds. Polanyi read about this second rejection, quite by chance. [Later] he submitted the identical manuscript to the Journal of Chemical Physics, where it was promptly published. ▫️ 6. Kary Mullis, Chemistry (1997), for the PCR method (!!!!) "And Dan Koshland would be the editor of Science when my first PCR paper was rejected from that journal and also the editor when PCR was three years later proclaimed Molecule of the Year." ▫️ 7. Rosalind Yalow, Medicine (1977), for the radioimmunoassays of peptide hormones From the rejection letter: “The experts in this field have beer particularly emphatic in rejecting your positive statement that the "conclusion that the globulin responsible for insulin binding is an acquired antibody appears to be inescapable”. ▫️ 8. Hans Krebs, Medicine (1953), for the citric acid cycle The rejection letter from Nature is in the picture. 🤦‍♂️ ▫️ ❗ My point is simple: Rejections by editors are NOT rejections by the research community. Believe in your results. Bring them to the public. Post your study as a preprint. Show it to the world and let the world decide. ▫️ (This list compiled by Josh Nicholson bit from me). #AcademicTwitter #phdlife
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