Term Name:	cyclin/CDK positive transcription elongation factor complex
Synonyms:	positive transcription elongation factor complex b
Definition:	A transcription elongation factor complex that facilitates the transition from abortive to productive elongation by phosphorylating the CTD domain of the large subunit of DNA-directed RNA polymerase II, holoenzyme. Contains a cyclin and a cyclin-dependent protein kinase catalytic subunit.
Ontology:	GO: Cellular Component [GO:0008024]    QuickGO    AmiGO