NPW38; Polyglutamine-binding protein 1; PQBP-1; 38 kDa nuclear protein containing a WW domain; Npw38; Polyglutamine tract-binding protein 1

For Research Use Only. Not for use in diagnostic procedures.

Polyclonal

Rabbit

Recognizes endogenous levels of PQBP1 protein.

Purified by immunogen affinity chromatography

Liquid in 0.42% Potassium phosphate, 0.87% Sodium chloride, pH 7.3, 30% glycerol, and 0.01% sodium azide.

Shipped at 4 degree C. Upon delivery aliquot and store at -20 degree C for one year. Avoid freeze/thaw cycles.

Small volumes of anti-PQBP1 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Rabbit polyclonal antibody to PQBP1

Western Blot (WB)

WB: 1/500 - 1/2000

Western blot analysis of PQBP1 expression in SKOV3 (A), HL60 (B), mouse brain (C), rat liver (D) whole cell lysates.

6,981 Da

polyglutamine binding protein 1

polyglutamine-binding protein 1

Polyglutamine-binding protein 1

Npw38??[Similar Products]

This gene encodes a nuclear polyglutamine-binding protein that is involved with transcription activation. The encoded protein contains a WW domain. Mutations in this gene have been found in patients with Renpenning syndrome 1 and other syndromes with X-linked cognitive disability. Multiple alternatively spliced transcript variants that encode different protein isoforms have been described for this gene.[provided by RefSeq, Nov 2009]

Intrinsically disordered protein that acts as a scaffold, and which is involved in different processes, such as pre-mRNA splicing, transcription regulation, innate immunity and neuron development (PubMed:10198427, PubMed:10332029, PubMed:12062018, PubMed:20410308, PubMed:23512658). Interacts with splicing-related factors via the intrinsically disordered region and regulates alternative splicing of target pre-mRNA species (PubMed:10332029, PubMed:12062018, PubMed:23512658, PubMed:20410308). May suppress the ability of POU3F2 to transactivate the DRD1 gene in a POU3F2 dependent manner. Can activate transcription directly or via association with the transcription machinery (PubMed:10198427). May be involved in ATXN1 mutant-induced cell death (PubMed:12062018). The interaction with ATXN1 mutant reduces levels of phosphorylated RNA polymerase II large subunit (PubMed:12062018). Involved in the assembly of cytoplasmic stress granule, possibly by participating to the transport of neuronal RNA granules (PubMed:21933836). Also acts as an innate immune sensor of infection by retroviruses, such as HIV, by detecting the presence of reverse-transcribed DNA in the cytosol (PubMed:26046437). Directly binds retroviral reverse-transcribed DNA in the cytosol and interacts with MB21D1/cGAS, leading to activate the cGAS-STING signaling pathway, triggering type-I interferon production (PubMed:26046437).

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