Rpb1 CTD (phospho-Thr4) rabbit pAb

Applications: WB
Reactivity: Human;Mouse;Rat
Source: Rabbit
Dilution: WB 1:1000-2000
Immunogen: Synthesized phosho peptide around human Rpb1 CTD (Thr4)
Storage_stability: -20°C/1 year
Clonality: Polyclonal
Isotype: IgG
Concentration: 1 mg/ml
Observed_band(KD): 250kD
Human_gene_id: 5430
Human_swiss_prot_no: P24928
Subcellular_location: Nucleus . Cytoplasm . Chromosome . Hypophosphorylated form is mainly found in the cytoplasm, while the hyperphosphorylated and active form is nuclear (PubMed:26566685). Co-localizes with kinase SRPK2 and helicase DDX23 at chromatin loci where unscheduled R-loops form (PubMed:28076779). .
Other_name: DNA-directed RNA polymerase II subunit RPB1 (RNA polymerase II subunit B1) (EC 2.7.7.6) (DNA-directed RNA polymerase II subunit A) (DNA-directed RNA polymerase III largest subunit) (RNA-directed RNA polymerase II subunit RPB1) (EC 2.7.7.48)
Background: This gene encodes the largest subunit of RNA polymerase II, the polymerase responsible for synthesizing messenger RNA in eukaryotes. The product of this gene contains a carboxy terminal domain composed of heptapeptide repeats that are essential for polymerase activity. These repeats contain serine and threonine residues that are phosphorylated in actively transcribing RNA polymerase. In addition, this subunit, in combination with several other polymerase subunits, forms the DNA binding domain of the polymerase, a groove in which the DNA template is transcribed into RNA. [provided by RefSeq, Jul 2008],