Anti-ENPEP antibody produced in rabbit

enhanced validation

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

Anti-Aminopeptidase A, Anti-CD249 antigen, Anti-EAP, Anti-Glutamyl aminopeptidase, Anti-APA, Anti-Differentiation antigen gp160
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



antibody small pack of 25 μL

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation


immunohistochemistry: 1:500- 1:1000

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... ENPEP(2028)

General description

ENPEP gene encodes the protein aminopeptidase A (APA), which is a membrane-bound ectopeptidase belonging to the zinc metalloprotease family. APA is expressed in a wide range of tissues, including the brain. Human ENPEP is localised to the chromosomal region 4q25. Human APA expressed in kidney is called gp160 and has a molecular weight of 160kDa.


Glutamyl aminopeptidase 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

APA (aminopeptidase A) that is encoded by ENPEP gene cleaves acidic residues, such as aspartate and glutamate, from the N- terminal of its substrates and its activity is modulated by calcium levels. It is one of the key enzymes in the central renin-angiotensin system, and regulates hypertension. It converts angiotensin II to angiotensin III by cleaving the N-terminal aspartate residue. gp160 plays a key role in the development of kidney, and therefore is also known as the human kidney differentiation antigen. APA activity has been shown to be decreased in various renal cell carcinomas as compared to normal renal cells. This might lead to an increase in the level of angiotensin II in renal carcinomas, hence contributing to angiogenesis. It has been suggested that the formation of Amyloid β peptides is facilitated by APA, where it truncates the full length Amyloid β at the N-terminal.

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 APREST85167.

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

Certificate of Analysis
Certificate of Origin
Lorena Blanco et al.
BMC cancer, 14, 386-386 (2014-06-03)
Advances in the knowledge of renal neoplasms have demonstrated the implication of several proteases in their genesis, growth and dissemination. Glutamyl-aminopeptidase (GAP) (EC. is a zinc metallopeptidase with angiotensinase activity highly expressed in kidney tissues and its expression and...
Yang Yang et al.
The Journal of biological chemistry, 288(35), 25638-25645 (2013-07-28)
Hypertension is regulated through both the central and systemic renin-angiotensin systems. In the central renin-angiotensin system, zinc-dependent aminopeptidase A (APA) up-regulates blood pressure by specifically cleaving the N-terminal aspartate, but not the adjacent arginine, from angiotensin II, a process facilitated...
Jean Sevalle et al.
Journal of neurochemistry, 109(1), 248-256 (2009-02-04)
Several lines of data previously indicated that N-terminally truncated forms of amyloid-beta (Abeta) peptides are likely the earliest and more abundant species immunohistochemically detectable in Alzheimer's disease-affected brains. It is noteworthy that the free N-terminal residue of full-length Abeta (fl-Abeta)...
Stephen Tonna et al.
Gene, 410(1), 44-52 (2008-01-22)
The aminopeptidase A (APA) ectopeptidase is an integral membrane-bound zinc metalloprotease that cleaves aspartic and glutamic acidic residues from the N-terminus of a number of protein substrates that includes angiotensin II. Angiotensin II, the most vasoactive component of the renin-angiotensin-aldosterone...
L Li et al.
Genomics, 43(3), 380-383 (1997-08-01)
The murine B-lymphocyte differentiation antigen BP-1/6C3 has been identified as glutamyl aminopeptidase (EAP), the gene symbol for which is ENPEP. Using genomic DNA encoding for human EAP as a probe, we identified the ENPEP gene location on human chromosome 4q25...

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