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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

238: Germline polymorphisms shape antibody light chain repertoires

Episode 238

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December 24, 2025

238: Germline polymorphisms shape antibody light chain repertoires

Engelbrecht E et al., Nat Commun - Long-read sequencing of IGK and IGL paired with AIRR-seq shows that common germline SNVs, SVs, and alleles...

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00:18:14

237: Tracing enteric pathogens in Africa with metagenomics and WGS

Episode 237

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December 23, 2025

237: Tracing enteric pathogens in Africa with metagenomics and WGS

Thystrup C et al., Nat Commun (2025) - This study combines whole-genome sequencing and metagenomics to map the diversity, abundance, and genomic relationships of...

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00:20:00

236: XPD translocation and genetic disease etiology

Episode 236

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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

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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

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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

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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