A serine-threonine kinase implicated in DNA repair

 7
A serine-threonine kinase implicated in DNA repair

Transcription-coupled nucleotide excision repair (TC-NER) is crucial to repair DNA damage that blocks RNA polymerase II.

The researchers demonstrate that human serine/threonine-protein kinase 19 (STK19) as a TC-NER factor, which is essential for correct DNA damage removal and subsequent transcription restart. 

They show that STK19 is an integral part of the RNA Pol II-TC-NER complex thereby stimulating RNA polymerase II ubiquitylation and correct TFIIH binding.

https://www.cell.com/molecular-cell/fulltext/S1097-2765(24)00870-0

https://sciencemission.com/STK19-drives-transcription-coupled-repair-by-stimulating-repair-complex-stability,-RNA-Pol-II-ubiquitylation,-and-TFIIH-recruitment