E-AB-91914
EAF1 Polyclonal Antibody
Größe
£195.30
War £217.00
- SKU:
- E-AB-91914
- Zusätzliche Namen:
- EAF1
- Anwendung:
- WB
- Konzentration:
- 1 mg/ml
- Aufreinigung:
- Affinity Purified
- Lagerbedingungen:
- -20[o]C Avoid freeze/thaw cycles.
- Hersteller:
- Elabscience
- Host:
- Rabbit
- Reaktivitäten:
- Human, Rat
- Buffer:
- Phosphate buffered solution, pH 7.4, containing 0.05% stabilizer and 50% glycerol.
- Immunogen:
- Recombinant fusion protein of human EAF1
- Uniprot:
- Q96JC9
- Synonyme:
- ELL (eleven nineteen lysine-rich leukemia gene)-associated factor 1;ELL-associated factor 1
- Weitere Details:
- Actin is a key regulator of RNA polymerase (Pol) II-dependent transcription. Positive transcription elongation factor b (P-TEFb), a Cdk9/cyclin T1 heterodimer, has been reported to play a critical role in transcription elongation. However, the relationship between actin and P-TEFb is still not clear. In this study, actin was found to interact with Cdk9, a catalytic subunit of P-TEFb, in elongation complexes. Using immunofluorescence and immunoprecipitation assays, Cdk9 was found to bind to G-actin through the conserved Thr-186 in the T-loop. Overexpression and in vitro kinase assays showed that G-actin promotes P-TEFb-dependent phosphorylation of the Pol II C-terminal domain. An in vitro transcription experiment revealed that the interaction between G-actin and Cdk9 stimulated Pol II transcription elongation. ChIP and immobilized template assays indicated that actin recruited Cdk9 to a transcriptional template in vivo and in vitro. Using cytokine IL-6-inducible p21 gene expression system, we revealed that actin recruited Cdk9 to endogenous gene. Moreover, overexpression of actin and Cdk9 increased histone H3 acetylation and acetylized histone H3 binding to a transcriptional template through the interaction with histone acetyltransferase, p300. Taken together, our results suggested that actin participates in transcription elongation by recruiting Cdk9 for phosphorylation of the Pol II C-terminal domain, and the actin-Cdk9 interaction promotes chromatin remodeling.
- Versandbedingungen:
- Blue Ice