EAF2 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	ICC/IF, WB
Recommend Dilution	WB,1:500 - 1:2000 IF,1:50 - 1:100
Reactivity	Human, Mouse, Rat
Modifications	Unmodified
Host	Rabbit
Clonality	Polyclonal
Immunogen	Recombinant fusion protein containing a sequence corresponding to amino acids 1-170 of human EAF2 (NP_060926.2).
Formulation	Buffer: PBS with 0.02% sodium azide,50% glycerol,pH7.3.
Concentration	lot specific
Purification	Affinity purification
Conjugation	Unconjugated
Storage Condition	Store at -20℃. Avoid freeze / thaw cycles.
Predicted Protein Size	14kDa/28kDa
Gene Name	ELL associated factor 2
Database Link	Entrez Gene 55840 Human UniProt ID Q96CJ1
Background	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.
Synonyms	BM040; TRAITS; U19
Reference Data

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