@semirkin.bsky.social
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semirkin.bsky.social
Proud to share this review based on recent studies from our and other labs. All credits to my great students Liangzi Li and Shem Scott who conducted some of these studies and wrote this thought-provoking review!
Emerging drivers of DNA repeat expansions url: portlandpress.com/biochemsoctr...
semirkin.bsky.social
My fantastic undergraduates at Stand up for Science rally in Boston today!
Reposted
rosenberglabbcm.bsky.social
What RNA polymerase gets up to in the genome and how mutations happen! Just out in Nature! Many thanks to many collaborators & congrats 1st author Jingjing Liu! www.nature.com/articles/s41...
Reposted
science.org
Already bruised by the Trump administration’s first round of firings of federal workers, employees at NIH faced more bad news. NIH’s 27 institute directors were told this week that the agency must cut staffing back to 2019 levels, or at least 10% below its 2024 tally. scim.ag/3EP8gjy
More NIH job cuts coming? Agency's scientists already reeling after week of firings
NIH is appealing loss of some lab leaders among in-house research program while bracing for the next actions from the Trump administration
scim.ag
semirkin.bsky.social
Best holiday present: Our comprehensive review of triplex H-DNA has just come out in NAR Mol Medicine. I am indebted to two outstanding graduate students: Julia Hisey and Chiara Masnovo, whose enthusiasm, dedication and hard work made this review possible! academic.oup.com/narmolmed/ad...
Triplex H-DNA structure: the long and winding road from the discovery to its role in human disease
Abstract. H-DNA is an intramolecular DNA triplex formed by homopurine/homopyrimidine mirror repeats. Since its discovery, the field has advanced from chara
academic.oup.com
semirkin.bsky.social
So very true. In any case, DNA nicks seem to rule!
semirkin.bsky.social
Our latest paper showing that DNA nicks drive expansions of both normal and disease-size alleles. All credit goes to a fantastic graduate student Liangzi Li as well as to a terrific team of current and former undergraduate and graduate students in the lab.

www.pnas.org/doi/10.1073/pnas.2413298121
Recurrent DNA nicks drive massive expansions of (GAA)n repeats | PNAS
Over 50 hereditary degenerative disorders are caused by expansions of short tandem DNA repeats (STRs). (GAA)n repeat expansions are responsible for...
www.pnas.org