Anti-MTPN antibody produced in rabbit

enhanced validation

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

Anti-Protein V-1, Anti-Myotrophin
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

human, mouse, rat

enhanced validation

RNAi knockdown
Learn more about Antibody Enhanced Validation


immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:500-1:1000

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... MTPN(136319)

General description

MTPN (Myotrophin) is an ankyrin repeat protein with a molecular mass of 13kDa. It is composed of four ankyrin repeat motifs. Its mRNA expression has been found in human dilated cardiomyopathic hearts.


Myotrophin recombinant protein epitope signature tag (PrEST)


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.

Biochem/physiol Actions

MTPN (Myotrophin) is associated with several cellular activities such as catecholamine synthesis, cerebellar development, cardiac hypertrophy, and insulin secretion. It is involved in the actin-based lamellipodial dynamics. It inhibits filament capping activity of actin capping protein (CP) by directly binding to the C-terminal region actin binding surface of CP. It has been reported that MTPN has a clinical correlation with the cardiac hypertrophy and its overexpression has been observed in ischemic hearts.

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 APREST74890.

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.


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Nandini Bhattacharya et al.
The Journal of biological chemistry, 281(41), 31021-31030 (2006-08-10)
The heterodimeric actin-capping protein (CP) regulates actin assembly and cell motility by binding tightly to the barbed end of the actin filament. Here we demonstrate that myotrophin/V-1 binds directly to CP in a 1:1 molar ratio with a Kd of...
K M Anderson et al.
Journal of molecular and cellular cardiology, 31(4), 705-719 (1999-05-18)
The predominant response of the heart to sustained increased work load is development of ventricular hypertrophy, principally as a result of hypertrophy of cardiomyocytes. The molecular mechanisms and factors involved in cardiomyocyte hypertrophy are poorly understood. Myotrophin is a novel...
Shuichi Takeda et al.
PLoS biology, 8(7), e1000416-e1000416 (2010-07-14)
The actin capping protein (CP) tightly binds to the barbed end of actin filaments, thus playing a key role in actin-based lamellipodial dynamics. V-1 and CARMIL proteins directly bind to CP and inhibit the filament capping activity of CP. V-1...
Bin Li et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 20(10), 2651-2662 (2014-03-07)
To investigate the autocrine/endocrine role of Id1-induced insulin-like growth factor-II (IGF-II) in esophageal cancer, and evaluate the potential of IGF-II- and IGF-type I receptor (IGF-IR)-targeted therapies. Antibody array-based screening was used to identify differentially secreted growth factors from Id1-overexpressing esophageal...

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