Details:
Tested Applications	WB
Target Information	RPB4 is a 32kDa subunit of RNA Polymerase II
Product Format	Ascites
Alternate Names	B32, DNA-directed RNA polymerase II 32 kDa polypeptide, RNA polymerase II subunit B4
Clone	2Y14
Host	Mouse
Isotype	IgG1
Immunogen	Recombinant Protein
Epitope	Unknown
Relevance	Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB4 is part of a subcomplex with RPB7 that binds to a pocket formed by RPB1, RPB2 and RPB6 at the base of the clamp element. The RBP4-RPB7 subcomplex seems to lock the clamp via RPB7 in the closed conformation thus preventing double stranded DNA from entering the active site cleft. The RPB4-RPB7 subcomplex binds single-stranded DNA and RNA. The RPB4-RPB7 subcomplex is necessary for promoter-directed transcription initiation but is not required for recruitment of Pol II to active preinitiation complexes and seems to be dispensable for transcription elongation and termination. The RPB4-RPB7 subcomplex recruits FCP1 to Pol II. Involved in DNA repair of damage in the transcribed strand. RPB4 is dispensable under optimal growth conditions, but becomes essential during heat or cold shock and under nutrient depletion. Suppresses the RBP9-mediated transcription-coupled repair (TCR) subpathway of nucleotide excision repair (NER) but facilitates the RAD26-mediated TCR subpathway. Under stress conditions only, involved in mRNA export to the cytoplasm. Involved in mRNA decay. Promotes or enhances the deadenylation process of specific mRNAs and may recruit PAT1 and the LSM1-7 complex to these mRNAs, thus stimulating their decapping and further decay.
Specificity	Yeast (Saccharomyces cerevisiae) RNA Pol II
Reported Reactivity	None
Reported Applications	Unknown

What's Happening at NeoClone Biotechnology You're probably wondering, "Now that BioLegend owns all your former catalog products, what the heck are you doing up there in Madison?" I'm glad you asked. We're still making great monoclonal antibodies, of course! NeoClone has been making custom murine antibodies via hybridoma technology for years. In fact, that's where our catalog came from in the first place! We decided that we needed to return our focus to custom projects, especially the really difficult targets that researchers had been bringing us all along. You know, the targets that other companies couldn't make due to problems with tolerance or toxicity or bizarre secondary structures. Then we decided to branch out into other methods of generating antibodies. We brought on new staff with years of experience in Antibody Phage Display and Camelid VHH antibodies. We've been upping our game in the Bioinformatics arena as well, giving us an edge in determining the best way to make YOUR antibody. Unlike other antibody development companies, we're not tied to one particular method. In the world of antibody development, one size does NOT fit all. So, you tell us what you want. We'll make sure we get it for you.