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Base by Base

Base by Base explores advances in genetics and genomics, with a focus on gene-disease associations, variant interpretation, protein structure, and insights from exome and genome sequencing. Each episode breaks down key studies and their clinical...more

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Latest Episodes

236: XPD translocation and genetic disease etiology

Episode 236

December 22, 2025

236: XPD translocation and genetic disease etiology

Paul T et al., Nat Commun - Computational modeling reveals how ATP-driven conformational cycles of the XPD helicase drive directional 5′→3′ translocation on single-stranded...

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00:19:54

235: Maternal H3K9 methyltransferases control aRMAE in C. elegans

Episode 235

December 21, 2025

235: Maternal H3K9 methyltransferases control aRMAE in C. elegans

Sands et al., Nature Communications - Using dual-color reporters in C. elegans, the study shows maternal H3K9 methyltransferases MET-2 and SET-25 antagonistically regulate autosomal...

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00:17:56

234: MTHFR genotype and methionine metabolism predict COVID-19 severity

Episode 234

December 20, 2025

234: MTHFR genotype and methionine metabolism predict COVID-19 severity

Petrova B et al., Proc Natl Acad Sci U S A - IMPACC longitudinal metabolomics and genomics analyses show that disruptions in one‑carbon/methionine metabolism...

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00:20:32

233: NuA3 structure reveals the mechanism of H3K14 acetylation

Episode 233

December 19, 2025

233: NuA3 structure reveals the mechanism of H3K14 acetylation

Shi W et al., Mechanistic insights into histone recognition and H3K14 acetylation by the NuA3 histone acetyltransferase complex - Cryo-EM structures of the yeast...

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00:18:48

232: Lamin A/C steers fork restart via H3K9me3 and PARylation

Episode 232

December 18, 2025

232: Lamin A/C steers fork restart via H3K9me3 and PARylation

Cherdyntseva V et al., Nat Commun - Nucleoplasmic Lamin A/C, together with LAP2α, enforces active replication fork slowing during mild replication stress by promoting...

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00:17:58

231: Transcription start sites as a germline mutational hotspot

Episode 231

December 17, 2025

231: Transcription start sites as a germline mutational hotspot

Cortés Guzmán M et al., Nat Commun - This study identifies a pronounced germline mutational hotspot centered on transcription start sites (TSSs) driven in...

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00:17:01