Anti-FXR1 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-hFXR1p, Anti-Fragile X mental retardation syndrome-related protein 1
Human Protein Atlas Number:
Pricing and availability is not currently available.

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity

rat, human, mouse


immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:200-1:500

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... FXR1(8087)

General description

The gene FXR1 (fragile X mental retardation syndrome-related protein 1) is mapped to human chromosome 3q28. FXR1 belongs to fragile X related family. It is an autosomal paralog of fragile X mental retardation 1. FXR1 is a RNA binding protein and is localized in the cytoplasm. RT-PCR analysis showed FXR1 expression in brain, heart, kidney and testis.


Fragile X mental retardation syndrome-related protein 1 recombinant protein epitope signature tag (PrEST)


Anti-FXR1 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org). 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

Fragile X mental retardation syndrome-related protein 1 (FXR1) plays an important role in development as FXR1 knockout mice die early during embryogenesis. FXR1 is important for proper development of the muscle tissue. Facioscapulohumeral muscular dystrophy myoblasts show abnormal expression of FXR1 which deregulates the proper metabolism of muscle specific mRNAs. Similarly, miR369-3 mediated association of argonaute 2 and FXR1 with AU-rich elements directs translational activation. FXR1 forms a complex with oncogenes, protein kinase C, iota and epithelial cell transforming-2, resulting in tumor progression and non-small cell lung cancer growth. Binding of plakophilins 1/3 with FXR1 is important for stability of specific mRNAs. FXR1 also interacts with tudor domain-containing protein-3 and Bcl-2-associated transcription factor-1. Glycogen synthase kinase 3β phosphorylates and down-regulates FXR1, thereby regulating behavior dimensions related to mood disorders in humans.

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.


Corresponding Antigen APREST74180.

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


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.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Thomas Del'Guidice et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(33), E4610-E4619 (2015-08-05)
Inhibition of glycogen synthase kinase 3β (GSK3β) is a shared action believed to be involved in the regulation of behavior by psychoactive drugs such as antipsychotics and mood stabilizers. However, little is known about the identity of the substrates through...
Regina Fischer-Kešo et al.
Molecular and cellular biology, 34(23), 4244-4256 (2014-09-17)
Plakophilins 1 and 3 (PKP1/3) are members of the arm repeat family of catenin proteins and serve as structural components of desmosomes, which are important for cell-cell-adhesion. In addition, PKP1/3 occur as soluble proteins outside desmosomes, yet their role in...
Bastian Linder et al.
Human molecular genetics, 17(20), 3236-3246 (2008-07-31)
Tudor domains are widespread among proteins involved in RNA metabolism, but only in a few cases their cellular function has been analyzed in detail. Here, we report on the characterization of the ubiquitously expressed Tudor domain containing protein Tdrd3. Apart...
M C Siomi et al.
The EMBO journal, 14(11), 2401-2408 (1995-06-01)
Fragile X mental retardation syndrome, the most common cause of hereditary mental retardation, is directly associated with the FMR1 gene at Xq27.3. FMR1 encodes an RNA binding protein and the syndrome results from lack of expression of FMR1 or expression...
Yichao Fan et al.
eLife, 6 (2017-08-03)
Tumor suppressor p53 prevents cell transformation by inducing apoptosis and other responses. Homozygous TP53 deletion occurs in various types of human cancers for which no therapeutic strategies have yet been reported. TCGA database analysis shows that the TP53 homozygous deletion...

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.