Polypyrimidine tract Archives - Laboratory Notes https://www.laboratorynotes.com/tag/polypyrimidine-tract/ Tue, 15 Sep 2026 00:40:00 +0000 en hourly 1 https://wordpress.org/?v=7.1 U2AF https://www.laboratorynotes.com/u2af/ https://www.laboratorynotes.com/u2af/#respond Tue, 15 Sep 2026 00:40:00 +0000 https://www.laboratorynotes.com/?p=31268 U2AF is an important RNA-splicing factor that helps recognize the 3′ end of many introns. Learn how U2AF65 and U2AF35 interact with the polypyrimidine tract and 3′ splice site and help coordinate spliceosome assembly during pre-mRNA processing.

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]]> https://www.laboratorynotes.com/u2af/feed/ 0 Polypyrimidine Tract https://www.laboratorynotes.com/polypyrimidine-tract/ https://www.laboratorynotes.com/polypyrimidine-tract/#respond Tue, 15 Sep 2026 00:35:15 +0000 https://www.laboratorynotes.com/?p=31265 The polypyrimidine tract is a U- and C-rich sequence near the 3′ end of many introns that helps the spliceosome recognize the 3′ splice site. Learn how it works with the branch point, splicing factors, and other RNA signals to regulate RNA splicing and gene expression.

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