A transcription halt following transcription initiation but prior to elongation, during which RNA polymerase II pauses approximately 20-60 nucleotides downstream of the transcriptional start site before proceeding into productive elongation. Transcription pausing starts following phosphorylation of the C-terminal domain (CTD) of RNA polymerase II subunit POLR2A at Ser-5 and stops following phosphorylation of POLR2A by the P-TEFb complex. [PMID:33271312, PMID:35816930]
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Collection
M5: Ontology GO: Gene Ontology GO:BP: GO Biological Process
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