{"product_id":"eaf1-polyclonal-antibody-e-ab-91914","title":"EAF1 Polyclonal Antibody - E-AB-91914","description":"\u003cp\u003eEAF1 Polyclonal Antibody\u003c\/p\u003e\n\n\u003cp\u003eSizes: 60μL, 120μL, 200μL\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: E-AB-91914-60, E-AB-91914-120, E-AB-91914-200\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eAbbreviation: EAF1\u003c\/p\u003e\n\n\u003cp\u003eTarget Synonym: EAF1\u003c\/p\u003e\n\n\u003cp\u003eConjugation: Unconjugated\u003c\/p\u003e\n\n\u003cp\u003eHost: Rabbit\u003c\/p\u003e\n\n\u003cp\u003eSpecies Reactivity: Human, Rat\u003c\/p\u003e\n\n\u003cp\u003eApplication: WB\u003c\/p\u003e\n\n\u003cp\u003eIsotype: IgG\u003c\/p\u003e\n\n\u003cp\u003eClonality: Polyclonal\u003c\/p\u003e\n\n\u003cp\u003eUNIProt ID: Q96JC9\u003c\/p\u003e\n\n\u003cp\u003eBackground: 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.\u003c\/p\u003e\n\n\u003cp\u003eConcentration: 1mg\/mL\u003c\/p\u003e\n\n\u003cp\u003eImmunogen: Recombinant fusion protein of human EAF1\u003c\/p\u003e\n\n\u003cp\u003eBuffer: PBS with 0.01% thiomersal, 50% glycerol, pH7.3.\u003c\/p\u003e\n\n\u003cp\u003ePurification Method: Affinity purification\u003c\/p\u003e\n\n\u003cp\u003eDilution: WB 1:500-1:2000\u003c\/p\u003e\n\n\u003cp\u003eCalculated MW: 17kDa\/29kDa\u003c\/p\u003e\n\n\u003cp\u003eObserved MW: 29kDa\u003c\/p\u003e\n\n\u003cp\u003eStorage: -20°C\/One year. Avoid freeze \/ thaw cycles.\u003c\/p\u003e\n\n\u003cp\u003eShipping: Ice bag\u003c\/p\u003e\n\n\u003cp\u003eResearch Use Only\u003c\/p\u003e","brand":"Elabscience","offers":[{"title":"60μL","offer_id":43148825886899,"sku":"E-AB-91914-60","price":280.0,"currency_code":"CAD","in_stock":true},{"title":"120μL","offer_id":43148825919667,"sku":"E-AB-91914-120","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"200μL","offer_id":43148825952435,"sku":"E-AB-91914-200","price":742.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/logo_new_4cb54cdd-6517-4ede-958e-0c48742211c4.png?v=1710330790","url":"https:\/\/afsbio.com\/products\/eaf1-polyclonal-antibody-e-ab-91914","provider":"AFSBio Inc.","version":"1.0","type":"link"}