snRNA-activating protein complex subunit 3

Definition:

Part of the SNAPc complex required for the transcription of both RNA polymerase II and III small-nuclear RNA genes. Binds to the proximal sequence element (PSE), a non-TATA-box basal promoter element common to these 2 types of genes. Recruits TBP and BRF2 to the U6 snRNA TATA box.

References:

[1]. Craig S Hinkley, et al. The small nuclear RNA-activating protein 190 Myb DNA binding domain stimulates TATA box-binding protein-TATA box recognition. J Biol Chem. 2003 May 16;278(20):18649-57. [Content Brief]

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