ABN1739M Sigma-Aldrich

Anti-Utrophin A

clone, from rabbit

Synonym: UTRN A

  •  eCl@ss 32160702

  •  NACRES NA.41



Related Categories Alphabetical Index, Antibodies, Primary Antibodies, UH-UZ
clone   polyclonal
biological source   rabbit
application(s)   immunofluorescence: suitable
  immunohistochemistry: suitable (paraffin)
  western blot: suitable
species reactivity   mouse, human, human, mouse, mouse, human
packaging   antibody small pack of 25 μg
isotype   IgG
Quality Level   100
antibody product type   primary antibodies
NCBI accession no.   NP_035812
UniProt accession no.   E9Q6R7
Gene Information   human ... UTRN(7402)


General description

Utrophin A (UniProt: E9Q6R7) is encoded by the Utrn gene in murine species. Utrophin is a large cytoskeletal protein, which is autosomally-encoded homologue of dystrophin, the protein product of the Duchenne muscular dystrophy (DMD) gene. It displays a sequence homology with dystrophin and possesses many of the protein-binding properties ascribed to dystrophin. In normal skeletal muscle, utrophin is located at the neuromuscular junction and dystrophin predominates at the sarcolemma. During development and in certain myopathies utrophin is also reported to be present at the sarcolemma and this redistribution is associated with higher levels of utrophin. Utrophin is found to co-localize with the acetylcholine receptors at the neuromuscular junctions and may participate in stabilizing the synaptic cytoskeleton. The utrophin mRNA contains two full-length species (named A- and B-utrophin), which are transcribed from different promoters. Hence, utrophin is a composite of A- and B-utrophin and only the A-utrophin is up-regulated in dystrophin-deficient striated muscle. This up-regulation is reported to occur post-transcriptionally. Utrophin A and B differ in their N-termini sequence. (Ref.: Blake, DJ et al. (1996). Brain Pathol. 6(1); 37-47; Weir, AP et al. (2002). J. Biol. Chem. 277 (47); 45285-90).


This rabbit polyclonal antibody detects utrophin in human and mouse muscle tissue. It targets an epitope with in the first 26 amino acids from the N-terminal region.


Epitope: N-terminus

KLH-conjugated linear peptide corresponding to the first 26 amino acids from the N-terminal region of murine utrophin.


Anti-Utrophin A Antibody, Cat. No. ABN1739, is a highly specific rabbit polyclonal antibody that targets Utrophin and has been tested in Immunofluorescence, Immunohistochemistry (Paraffin), and Western Blotting.

Immunohistochemistry Analysis: A 1:50 dilution from a representative lot detected Utrophin A in human skeletal muscle and human uterus tissue.

Immunofluorescence Analysis: A representative lot detected Utrophin A in quadriceps transverse sections in transgenic mice (Adams, M.E., et. al. (2010). J Neurosci. 30(33):11004-10).

Immunohistochemistry Analysis: A representative lot detected Utrophin A in frozen sections of the gastrocnemius muscles (Banks, G.B., et. al. (2014). PLoS Genet. 10(6):e1004431).

Western Blotting Analysis: representative lot detected Utrophin A in whole muscle lysates (Banks, G.B., et. al. (2014). PLoS Genet. 10(6):e1004431).

Western Blotting Analysis: A representative lot detected Utrophin A in muscle membrane extracts from mdx mice (Courtesy of Dr Marvin Adams at University of Washington).

Immunofluorescence Analysis: A representative lot detected Utrophin A in mouse neuromuscular junction (Courtesy of Dr Marvin Adams at University of Washington).

Research Category

Target description

394.47 kDa calculated.

Physical form

Affinity Purified

Format: Purified

Purified rabbit polyclonal antibody in PBS with 0.02% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.


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.


Evaluated by Immunohistochemistry in human prostate.

Immunohistochemistry Analysis: A 1:50 dilution of this antibody detected Utrophin A in human prostate tissue.

Other Notes

Concentration: Please refer to lot specific datasheet.

Safety & Documentation

Safety Information

Flash Point(F) 
does not flash
Flash Point(C) 
does not flash
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

Related Content

Antibody Explorer | Buy Primary Antibodies & Secondary Antibodies

Primary, Secondary and Recombinant Monoclonal Antibodies Providing highly cited primary and secondary antibodies, we have you covered for your ELISA, western blot, immunohistochemistry or other assay...
Keywords: Alzheimer Disease, Cancer, Chromatin immunoprecipitation, Diagnostic, Enzyme-linked immunosorbent assay, Flow cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Neuroscience, Western blot

Related Products

Technical Service:

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

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?