Biochem/physiol Actions

In mouse, pausing of elongation complexes is mediated by the transcription termination factor TTF-I bound to the ′Sal box′ terminator downstream of the rDNA transcription unit. PTRF is a Pol I and transcript release factor for dissociation of paused ternary complexes.

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General description

Polymerase I and transcript release factor (PTRF) contains a leucine zipper motif, a nuclear localization signal, and PEST domains. It is critically involved in termination of transcription by stalling RNA poly I and releasing it from the elongating transcript. PTRF is also found localized to caveolae and regulates formation of the vesicles at the plasma membrane.

Immunogen

Synthetic peptide directed towards the middle region of mouse PTRF

Physical form

Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.

Sequence

Synthetic peptide located within the following region: SEALPEKEGDELGEGERPEDDTAAIELSSDEAVEVEEVIEESRAERIKRS