General description
HOPX (homeodomain only protein x) gene is mapped in human chromosome 4q12. Unlike HOX proteins, it lacks a DNA-binding domain that is required for protein-DNA interactions. HOPX is widely expressed, but not in malignant tissues including choriocarcinoma, lung, uterine endometrial and gastrointestinal cancers. The gene contains 3 transcript variants HOPX- α, β, γ encoding the same protein.
Immunogen
HOP homeobox recombinant protein epitope signature tag (PrEST)
Application
All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project 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. We also provide Prestige Antibodies® protocols and other useful information.
Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Immunohistochemistry (1 paper)
Biochem/physiol Actions
HOPX (homeodomain only protein x) is involved in cardiac and skeletal muscle development by recruiting histone deacetylases. It controls the SRF (serum response factor)-dependent gene expression for the regulation of cardiac development. Downregulation of HOPX leads to cardiac hypertrophy in mice. In advanced human heart failure, HOPX expression is reduced. It acts as co-chaperone and organises the Hsp70-Hsp90 (heat shock proteins) proteins. It serves as a maker for a number of stem cell types. Studies show that HOPX inhibits tumour cell proliferation rate, migration and invasion in lung cancer. It also increase cell death by the activation of oncogenic Ras (GTPase) and the downstream MAPK (mitogen activated protein kinase) pathway.
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.
Linkage
Corresponding Antigen APREST78383.
Physical form
Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide.
Legal Information
Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC
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.
- UPC:
- 41181840
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- HPA030180-100UL