BackgroundPoly(A)-binding proteins (PABPs) bind to the poly(A) tail present at the 3-prime ends of most eukaryotic mRNAs. PABPC4 or IPABP (inducible PABP) was isolated as an activation-induced T-cell mRNA encoding a protein. Activation of T cells increased PABPC4 mRNA levels in T cells approximately 5-fold. PABPC4 contains 4 RNA-binding domains and proline-rich C terminus. PABPC4 is localized primarily to the cytoplasm. It is suggested that PABPC4 might be necessary for regulation of stability of labile mRNA species in activated T cells. PABPC4 was also identified as an antigen, APP1 (activated-platelet protein-1), expressed on thrombin-activated rabbit platelets. PABPC4 may also be involved in the regulation of protein translation in platelets and megakaryocytes or may participate in the binding or stabilization of polyadenylates in platelet dense granules. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. This protein has also been found to interact with coronavirus nucleocapsid proteins and is thought to inhibit coronavirus replication.
DescriptionPolyclonal AntibodyPC4 Polyclonal Antibody. Unconjugated. Raised in: Rabbit.
FormulationBuffer: PBS containing 50% glycerol, preserved with proclin300 or sodium azide, pH 7.3.
SpecificityHuman, Mouse, Rat
IsotypeIgG
Uniprot IDQ13310
PurificationAffinity Purified
ImmunogenSynthetic peptide. Please contact EpigenTek for more information.
StorageStore at -20°C. Avoid freeze / thaw cycles.
Alternative NamesAPP1; APP-1; PABP4; iPABP; PABPC4
ApplicationWB, IHC-P, IF/ICC, ELISA; Recommended dilution: WB, 1:500 - 1:2000; IHC-P, 1:50 - 1:200; IF/ICC, 1:50 - 1:200; ELISA, Recommended starting concentration is 1 µg/mL. Please optimize the concentration based on your specific assay requirements.