Anti-CST3 antibody produced in rabbit

enhanced validation

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

Anti-Cystatin-C precursor, Anti-Gamma-trace, Anti-Neuroendocrine basic polypeptide, Anti-Post-gamma-globulin, Anti-Cystatin-3
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


immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:50-1:200

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... CST3(1471)

General description

Cystatin-C precursor (CST3) belongs to the cystatin family (type2) of proteins and contains 120 amino acids. The gene CST3 is located on human chromosome 20p11.2. CST3 is expressed in many tissues and is present in all body fluids.


Cystatin-C precursor 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

Cystatin-C precursor (CST3) is an inhibitor of lysosomal cysteine proteases and several cathepsins like cathepsin S, a lysosomal enzyme. It has been shown that CST3 is a marker of glomerular filtration and diabetic kidney disease. In presence of pathological conditions, it forms amyloid fibrils in brain arteries. Mutations in the gene encoding CST3 have been shown to be associated with a form of amyloidosis and age-related macular degeneration.

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 APREST71715.

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
Nikola Sekulovski et al.
Biology of reproduction, 100(2), 398-408 (2018-10-18)
Endometriosis causes severe chronic pelvic pain and infertility. We have recently reported that niclosamide treatment reduces growth and progression of endometriosis-like lesions and inflammatory signaling (NF${\rm \small K}$B and STAT3) in a mouse model. In the present study, we examined...
Paraskevi L Tsiolaki et al.
FEBS letters, 589(1), 159-164 (2014-12-06)
Human cystatin C (HCC) is a low molecular weight member of the cystatin family (type2). HCC consists of 120 amino acids. Normally it is an inhibitor of cysteine proteases, but in pathological conditions it forms amyloid fibrils in brain arteries...
Jan Zurdel et al.
The British journal of ophthalmology, 86(2), 214-219 (2002-01-30)
To determine whether allelic variants of the cystatin C gene CST3 are genetically associated with exudative age related macular degeneration (ARMD). Cystatin C is a cysteine protease inhibitor that regulates the activity of cathepsin S, a protease with central regulatory...
Zahra Asefy et al.
Pakistan journal of biological sciences : PJBS, 17(4), 582-585 (2015-04-29)
Serum concentration of cystatin C a marker of glomerular filtration has been associated with Cardiovascular Disease (CVD). The aim of this study was to evaluate cystatin C as a marker of diabetic kidney disease in normoalbuminuric diabetic patients without Chronic...
Asbjorg Osk Snorradottir et al.
Laboratory investigation; a journal of technical methods and pathology, 97(4), 383-394 (2017-01-10)
Hereditary cystatin C amyloid angiopathy (HCCAA) is a genetic disease caused by a mutation in the cystatin C gene. Cystatin C is abundant in cerebrospinal fluid and the most prominent pathology in HCCAA is cerebral amyloid angiopathy due to mutant...

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