Shady Saad

@shadys11.bsky.social

HFSP Postdoc in the Wysocka and Jarosz labs @Stanford. Aiming to understand physiological protein assemblies. Alum of ETH Zürich.

Today in @nature.com, we present our work leveraging functional genomics and human blastoids to uncover a human-specific mechanism in preimplantation development driven by the endogenous retrovirus HERVK. Special thanks to the reviewers whose comments improved our manuscript a lot! rdcu.be/eI3tD

A human-specific regulatory mechanism revealed in a pre-implantation model

Nature - Genetic manipulation of blastoids reveals the role of recently emerged transposable elements and genes in human development.

rdcu.be

When we first isolated FOXP2 & implicated it in speech disorder, a notable feature was its big stretch of consecutive glutamine (Q) residues, the longest polyQ tract in a native protein. @shadys11.bsky.social et al here use it as a model to reveal how polyQ proteins avoid forming toxic assemblies.🙌🧪

DNA binding and mitotic phosphorylation protect polyglutamine proteins from assembly formation

DNA binding and phosphorylation protect FOXP2, a transcription factor with the longest polyQ track in the proteome, from aggregation during interphase and mitosis. Harnessing these native solubility-p...

cell.com