302 auf Deutsch: SMN1/SMN2-Spleißen und Mechanismen im letzten Exon — Hommage an Brunhilde Wirth

EPISODE · Feb 27, 2026 · 13 MIN

302 auf Deutsch: SMN1/SMN2-Spleißen und Mechanismen im letzten Exon — Hommage an Brunhilde Wirth

from Base by Base · host Gustavo Barra

Ein Hommage-Dossier, das die wissenschaftliche Laufbahn von Prof. Brunhilde Wirth würdigt und Arbeiten zum alternativen Spleißen von SMN1/SMN2 hervorhebt. Im Fokus stehen Studien aus der molekularen Genetik und funktionelle Assays, die die Auswirkungen von Varianten bei SMA aufgeklärt haben. Studien-Highlights: Dieses Dossier beleuchtet jahrzehntelange Arbeit in der Humangenetik und zur spinalen Muskelatrophie und betont insbesondere Studien zu SMN1 und SMN2. Zu den zentralen Methoden gehörten molekulargenetische Analysen, Spleißanalysen, Messungen der Proteinexpression sowie Stabilitätsassays zur funktionellen Validierung von Varianteneffekten. Ein zentraler mechanistischer Befund ist, dass Störungen sehr spät in der kodierenden Sequenz sich anders verhalten können, als einfache Modelle vorhersagen: Einige Transkripte entgehen dem erwarteten nonsense-mediated decay (NMD) und können die Proteinstabilität verändern. Diese experimentell validierten Erkenntnisse haben direkte Bedeutung für diagnostische Interpretation, Neugeborenen-Screening und Genotyp-Phänotyp-Korrelation bei SMA. Fazit: Prof. Wirths Karriere zeigt, dass die experimentelle Validierung von Spleiß- und Proteinstabilitäts-Effekten von SMN1/SMN2-Varianten für eine präzise klinische Interpretation bei SMA essenziell ist. Musik: Genieße die Musik, die auf diesem Beitrag basiert, am Ende der Episode. Support: Base by Base – Stripe-Spenden: https://donate.stripe.com/7sY4gz71B2sN3RWac5gEg00 Offizielle Website: https://basebybase.com Bei PaperCast Base by Base entdeckst du Aktuelles aus Genomik, funktioneller Genomik, struktureller Genomik und Proteomik. Episodenlink: basebybase.com/episodes/smn1-smn2-splicing-wirth-2/

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302 auf Deutsch: SMN1/SMN2-Spleißen und Mechanismen im letzten Exon — Hommage an Brunhilde Wirth

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