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一般描述

B4GALT1 (UDP-Gal:βGlcNAc β 1,4- galactosyltransferase, polypeptide 1) belongs to a family of type II transmembrane proteins called glycosyltransferases, which resides in Golgi apparatus. This family consists of seven members, from GALT1 to GALT7. B4GALT1 has two isoforms, having different cellular locations, because of differences in their cytoplasmic domains. The long isoform is localized to the cell surface, whereas the short isoform is found in the Golgi apparatus. This gene is located on human chromosome 9p13, and codes for a protein containing 398 amino acids. It is expressed in most tissues, excluding adult brain and fetal heart and brain.

免疫原

β-1,4-Galactosyltransferase 1 recombinant protein epitope signature tag (PrEST)

应用

All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

生化/生理作用

B4GALT1 (UDP-Gal:βGlcNAc β 1,4- galactosyltransferase, polypeptide 1) is responsible for the synthesis of galactose β-1,4-N-acetylglucosamine (Galβ1-4GlcNAc) groups on glycoproteins, on theirN-linked sugar chains. This is performed by the short isoform of B4GALT1, which resides in Golgi bodies. The long isoform, localized to the cell surface, helps in cell adhesion, by interacting withN-acetylglucosamine containing oligosaccharides, which are found in the extracellular matrix. In patients with rheumatoid arthritis, it is involved in the inflammatory response in the synovial tissue. B4GALT1 plays an important role in the proliferation of MCF-7 breast cancer cells, by interacting with estrogen receptor. It is methylated and down-regulated in colorectal cancer patients, and hence, can act as a marker of invasive phenotype of colorectal cancer.

特点和优势

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.

联系

Corresponding Antigen APREST71675.

外形

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

法律信息

Prestige Antibodies is a registered trademark of sigma-aldrich Co. LLC

免责声明

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.

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