Anti-RRBP1 antibody produced in rabbit，100UL，HPA009026-100UL，Sigma

General description

RRBP1 (ribosome binding protein 1) is a membrane protein that localizes to endoplasmic reticulum (ER). It is also found in cytoplasm and nucleus. This protein is composed of 1410 amino acids, a transmembrane domain in its hydrophobic N-terminal, a highly conserved tandem repeat which functions as the ribosome-binding domain, and the C-terminal which contains an acidic coiled-coil domain.

Immunogen

Ribosome-binding protein 1 recombinant protein epitope signature tag (PrEST)

Application

Anti-RRBP1 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project . Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

RRBP1 (ribosome binding protein 1) is a key ribosome binding protein and plays essential role in the translocation of naïve proteins across the membrane of endoplasmic reticulum (ER). It is essential for the terminal differentiation of secretory tissues, and for the production of pro-collagen in secretory tissues. It also functions as the interacting partner of the motor protein KIF5B (kinesin family member 5B), which is up-regulated in several cancer cell lines. RRBP1 protein is highly expressed in breast cancer (BC) cells and might have potential as a BC marker. This protein is essential for the ER-localization of bulk poly(A) and of certain mRNAs such as, placental alkaline phosphatase and calreticulin. Up-regulation of this protein promotes the progression of colorectal cancer, and functions as a predictor of poor outcome in post-operative cases. In secretory cells, RRBP1-rich ER is responsible for the expansion of trans-Golgi network following the secretion of activated collagen.

Features and Benefits

Prestige Antibodies^® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies^® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:

• IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
• Protein array of 364 human recombinant protein fragments.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Other Notes

Corresponding Antigen APREST71890

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.