Head of Statistical Genetics at BioMarin. Genetics and genomics, coding and decoding, sequences and consequences.

San Francisco Bay Area
Joined December 2011
There are haploinsufficiencies that are caused almost entirely by missense variants instead of truncating mutations. Those genes are more vulnerable to missense variants disrupting their function, and SLC6A1 is an example. Here's our paper: cell.com/ajhg/fulltext/S0002…
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Someone (not me) needs to write a Wikipedia entry on gnomAD @gnomad_project
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Congratulations to the ultimate fan of #eshg2024 ! 💇🏻🧬 👏🏻
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Great talk by @eloise96wells: ASOs targeting 5' UTRs for haploinsufficiencies. 890 genes have evidence of a central 5' UTR exon, 66 of which are associated with neurological haploinsufficiencies. Example: GRIN2B #eshg2024
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What causes unstable transmission of the HTT CAG repeat? @AnupriyaDalmia looks at 22,830 transmissions of the HTT gene in the 100,000 Genomes cohort. 0.84% of transmissions are unstable #eshg2024
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CAG repeat expansions are associated with already expanded CAG in parents, parental age. Paternal transmissions are more likely to be unstable #eshg2024
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Great quote @ksamocha #eshg2024! average of 7 pathogenic variants per individual in @gnomad_project v4. Mostly for AR conditions but 734 LoF variants in 77 haploinsufficient genes. Dig deeper and 70% do not truly result in LoF: manual #curation important!
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Recently, there are so many exciting results on somatic mutations causing diseases outside of cancer. Example: @BaulacS' talk at #eshg2024 on somatic mutations in the mTOR pathway causing focal cortical dysplasia type II
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Exciting new research, published today by @AJHGNews assesses the function of a major genetic cause of neurodevelopmental disorders. @IdrmOxford Read more: paediatrics.ox.ac.uk/news/ne…
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DC: the HLA II hetreozygosity signal is independent of PRS scores, so getting to 9% of risk (editorial, with some of this risk being GxE, where E is involved with smoking) #bog24
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Diego Chowell shows that heterozygosity at HLA class II loci is associated with a reduced risk of lung cancer. Finds that heterozygosity in the binding groove is critical. LoH in HLA II (and I) is a tipping point. Argues immunogenetics plays a larger role than appreciated. #bog24
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Lovely talk from Michael Tassia demonstrating a connection between POT1 mutations, LONG telomere length, and various forms of cancer risk. Studied clonal hematopoiesis - hypothesize that long telomeres sustain hematopoietic progenitors, thus propagating somatic mutations. #bog24
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Wanted: Scientist to join our Statistical Genetics group at BioMarin. Purpose: Discover targets. Requirement: Be good, especially at human genetics. Learn more and apply: careers.biomarin.com/job/san…
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Great #ACMGMtg23 talk on reimplantation embryo selection using PRS by @patrickaturley: Babies are already being born with this technology. Magnitude of expected benefit is debatable (doi.org/10.1056/nejmsr210506…)
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