Leandro Martínez
@lmiq.bsky.social
230 followers
49 following
28 posts
Computational chemist - http://m3g.iqm.unicamp.br
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Reposted by Leandro Martínez
Reposted by Leandro Martínez
Leandro Martínez
@lmiq.bsky.social
· Feb 9
Osmolyte-Induced Structural and Thermodynamic Effects on the Protein Folding Landscape
Understanding how osmolytes influence protein folding is fundamental in biology and biotechnology. We developed a computational pipeline to investigate the structural and thermodynamic effects of osmolytes across the protein folding landscape: Using coarse-grained simulations to generate folding ensembles, we then employed atomistic simulations to explore each conformation in aqueous solutions of urea and TMAO. Minimum-distance distribution functions and the Kirkwood-Buff solvation theory provide unprecedented details on the solvation structures and thermodynamics. We studied two model proteins: the β-sheet SH3 domain and the helical B domain of protein A (BdpA). Urea stabilizes most denatured states, while TMAO destabilizes them. However, urea destabilizes partially denatured states of BdpA, which are only marginally affected by TMAO, demonstrating that osmolytes can selectively interfere with denaturation pathways. We show that urea-induced denaturation arises from strengthened non-specific interactions in unfolded states, leading to increased protein dehydration. Cosolvent effects on folding free energies match experimental data within 1 kcal/mol, validating force-fields and analysis methods. These findings provide a novel perspective on osmolyte-protein interplay, with implications for solvent and biomolecular design. ### Competing Interest Statement The authors have declared no competing interest.
www.biorxiv.org
Leandro Martínez
@lmiq.bsky.social
· Jan 31
Cation Hydrophobicity Effects on Protein Solvation in Aqueous Ionic Liquids
This study examines the influence of cation hydrophobicity on protein solvation in aqueous solutions of Ionic Liquids. Ubiquitin solvation structures and thermodynamics in systems with 1-ethyl-3-methy...
chemrxiv.org
Leandro Martínez
@lmiq.bsky.social
· Nov 30
Molecular dynamics and solvation structures of the β-glucosidase from Humicola insolens (BGHI) in aqueous solutions containing glucose
The β-glucosidase enzyme is a glycosyl hydrolase that breaks down the β-1,4 linkage of cellobiose. It is inhibited by glucose at high concentrations d…
www.sciencedirect.com
Leandro Martínez
@lmiq.bsky.social
· Oct 30
Leandro Martínez
@lmiq.bsky.social
· Oct 28
Leandro Martínez
@lmiq.bsky.social
· Oct 13
Leandro Martínez
@lmiq.bsky.social
· Oct 13
Aprosoja MT comemora aprovação de projeto contra moratória da soja | Agro Estadão
Proposta impede a concessão de incentivos fiscais e terrenos públicos a empresas organizadas em acordos que restrinjam a competitividade do produto mato-grossense
agro.estadao.com.br
Leandro Martínez
@lmiq.bsky.social
· Oct 10
Leandro Martínez
@lmiq.bsky.social
· Sep 22
Leandro Martínez
@lmiq.bsky.social
· Sep 17
"Immigrants often increase employment among the native-born. Why? Because they spend much of their earnings where they live and work, helping create local jobs."
In other words, immigrants are people. They supply *and demand* labor. They demand *and supply* goods and services. Of course they do.
In other words, immigrants are people. They supply *and demand* labor. They demand *and supply* goods and services. Of course they do.
Leandro Martínez
@lmiq.bsky.social
· Sep 13
Argentina: inflação anual acelera e vai a 236,7% em agosto, enquanto país vive contração da economia; entenda
Apesar da alta do setor agrícola e pecuário, o consumo e as principais indústrias do país continuem sofrendo com os impactos das medidas econômicas do presidente Javier Milei.
g1.globo.com
Reposted by Leandro Martínez
Roberto Takata
@rmtakata.bsky.social
· Sep 10
Juíza condena cientistas por criticarem post que associava diabetes a parasitas
➡️ O duo NuncaVi1Cientista, formado pela bióloga Ana Bonassa (especialista no metabolismo do diabetes) e pela farmacêutica Laura Marise, terá de indenizar o autor da desinformação
➡️ O duo NuncaVi1Cientista, formado pela bióloga Ana Bonassa (especialista no metabolismo do diabetes) e pela farmacêutica Laura Marise, terá de indenizar o autor da desinformação
Leandro Martínez
@lmiq.bsky.social
· Sep 9
Geospatial Software Development at Arpeggeo®
Description We are seeking a highly skilled and motivated Software Engineer to join our team, focusing on the development of cutting-edge geospatial software solutions. The ideal candidate will have s...
discourse.julialang.org
Reposted by Leandro Martínez
Adolfo Neto
@adolfont.github.io
· Sep 8
GitHub - adolfont/caes005-introduction-to-functional-programming: CAES005 - Introdução à Programação Funcional
CAES005 - Introdução à Programação Funcional. Contribute to adolfont/caes005-introduction-to-functional-programming development by creating an account on GitHub.
github.com
Leandro Martínez
@lmiq.bsky.social
· Sep 7
Leandro Martínez
@lmiq.bsky.social
· Sep 7
Leandro Martínez
@lmiq.bsky.social
· Sep 7