Gonzalo Alvarez Viar
- Postdoc, Pigino Group
Publications
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05/2024 - Current Opinion in Cell Biology
Tubulin posttranslational modifications through the lens of new technologies
The Tubulin Code revolutionizes our understanding of microtubule dynamics and functions, proposing a nuanced system governed by tubulin isotypes, posttranslational modifications (PTMs) and microtubule-associated proteins (MAPs). Tubulin isotypes, diverse across species, contribute structural complexity, and are thought to influence microtubule functions. PTMs encode dynamic information on microtubules, which are read by several microtubule interacting proteins and […]
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07/2022 - Science
In situ architecture of the ciliary base reveals the stepwise assembly of intraflagellar transport trains
The cilium is an antenna-like organelle that performs numerous cellular functions, including motility, sensing, and signaling. The base of the cilium contains a selective barrier that regulates the entry of large intraflagellar transport (IFT) trains, which carry cargo proteins required for ciliary assembly and maintenance. However, the native architecture of the ciliary base and the […]
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04/2022 - Nano Lett
Fabrication of High Aspect Ratio Gold Nanowires within the Microtubule Lumen
Gold nanowires have great potential use as interconnects in electronic, photonic, and optoelectronic devices. To date, there are various fabrication strategies for gold nanowires, each one associated with particular drawbacks as they utilize high temperatures, toxic chemicals, or expensive compounds to produce nanowires of suboptimal quality. Inspired by nanowire fabrication strategies that used higher-order biopolymer […]
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01/2021 - Science
Tubulin glycylation controls axonemal dynein activity, flagellar beat, and male fertility beat, and male fertility
Posttranslational modifications of the microtubule cytoskeleton have emerged as key regulators of cellular functions, and their perturbations have been linked to a growing number of human pathologies. Tubulin glycylation modifies microtubules specifically in cilia and flagella, but its functional and mechanistic roles remain unclear. In this study, we generated a mouse model entirely lacking tubulin […]
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09/2020 - Nature Structural Molecular Biology
The molecular structure of mammalian primary cilia revealed by cryo-electron tomography
Primary cilia are microtubule-based organelles that are important for signaling and sensing in eukaryotic cells. Unlike the thoroughly studied motile cilia, the three-dimensional architecture and molecular composition of primary cilia are largely unexplored. Yet, studying these aspects is necessary to understand how primary cilia function in health and disease. We developed an enabling method for […]
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