The Study
From selenium to sulfur: predictive modeling unveils conformational and bonding changes in selenoproteins.
This study used a computer to guess what these special proteins look like, but it didn't actually test them in a lab or in people. So it can't prove anything happens in real life — it just shows what might be possible.
Analysis score
Maximum 0 for a computational/algorithm study.
Where the score came from
Selenium is built into 25 special proteins that help your cells handle stress and make hormones. Scientists used a super-smart computer program to guess what these proteins look like.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 50 / 100
Quality score
Based on clinical experience or non-systematic literature reviews. The lowest level of evidence as they are most susceptible to bias and personal perspective.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This means selenium isn't just a generic antioxidant—it's precisely placed to enable specific chemical reactions in key proteins, especially those involved in cell protection and thyroid function.
- 2The computer guessed the shape of 22 out of 25 selenium proteins correctly.
- 3When selenium was replaced with sulfur, 19 proteins kept their shape, but 6 lost key connections.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Journal of structural biology
Year
2025
Authors
Shiqi Luo, Xinnan Liu, Xia Wang, Haotian Liu, Wei Ge
Related Content
Claims (10)
Selenium is a component of 25 specific proteins that are built into human tissues such as the thyroid, immune cells, and cell membranes.
Computational analysis of human selenoproteins reveals that fifteen of them share a common structural feature derived from a thioredoxin-like fold, suggesting they evolved from a shared ancestral structure and perform related functions.
AlphaFold 3 has produced a complete map of all human proteins that require selenium, allowing scientists to study their functions, evolutionary history, and design drugs that target their redox activities.
AlphaFold 3 generates a computational model of glutathione peroxidase 4 that matches the dimeric structure seen in laboratory experiments using brain tissue and cell lines.
AlphaFold 3 created highly accurate atomic-level models of 22 human selenoproteins, and its prediction for glutathione peroxidase 4 matched experimental data with precision better than one ten-billionth of a meter.
Computer simulations show that replacing selenium-containing amino acids with sulfur-containing ones in 25 human proteins keeps the overall shape intact in 19 proteins but breaks or changes specific chemical bonds in six proteins, demonstrating that selenium's role is confined to particular structural sites.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.