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Key Documents

HPA018858

Sigma-Aldrich

Anti-GPA33 antibody produced in rabbit

enhanced validation

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

Synonym(s):

GPA33 Antibody - Anti-GPA33 antibody produced in rabbit, Gpa33 Antibody, A33, Glycoprotein A33

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

human

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation

technique(s)

immunohistochemistry: 1:500-1:1000
western blot: 0.04-0.4 μg/mL

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... GPA33(10223)

General description

The gene GPA33 (cell surface A33 antigen) is mapped to human chromosome 1q24.1. GPA33 is a membrane-associated glycoprotein. The protein is present in the small intestine and colonic epithelium.

Immunogen

Cell surface A33 antigen precursor recombinant protein epitope signature tag (PrEST)

Sequence
TYECSVSLMSDLEGNTKSRVRLLVLVPPSKPECGIEGETIIGNNIQLTCQSKEGSPTPQYSWKRYNILNQEQPLAQPASGQPVSLKNISTDTSGYYICTSSNEEGTQFCNITVA

Application

All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project 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. We also provide Prestige Antibodies® protocols and other useful information.

Biochem/physiol Actions

Cell surface A33 antigen (GPA33) is uniformly expressed in colorectal cancers. Gut-enriched Krüppel-like factor (GKLF) associates with the promoter of GPA33 and thereby induces its expression in intestinal epithelium.

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.

Linkage

Corresponding Antigen APREST86411

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 Merck KGaA, Darmstadt, Germany

Disclaimer

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.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Eric Roman et al.
Oncology reports, 20(4), 825-843 (2008-09-25)
We used microarray-based comparative genomic hybridization to explore genome-wide profiles of chromosomal aberrations in 26 samples of head and neck cancers compared to their pair-wise normal controls. The samples were obtained from Sudanese (n=11) and Norwegian (n=15) patients. The findings
J Robert O'Neill et al.
Molecular & cellular proteomics : MCP, 23(6), 100764-100764 (2024-04-12)
Efforts to address the poor prognosis associated with esophageal adenocarcinoma (EAC) have been hampered by a lack of biomarkers to identify early disease and therapeutic targets. Despite extensive efforts to understand the somatic mutations associated with EAC over the past
Zebin Mao et al.
Oncogene, 22(28), 4434-4443 (2003-07-11)
A33 antigen is a membrane-bound protein that is expressed only in intestinal epithelium and in most human colon cancers. Thus, A33 antigen has been explored as a potential therapeutic target for the treatment of colon cancers. However, little is known
Jeffrey R Infante et al.
European journal of cancer (Oxford, England : 1990), 49(6), 1169-1175 (2013-01-09)
The objective of this first-in-human trial included the safety, maximum tolerated dose (MTD), pharmacokinetics, immunogenicity and antitumour effects of KRN330, a novel fully-human monoclonal antibody directed against A33, a membrane bound glycoprotein uniformly expressed in 95% of colorectal cancers. Patients
Margaret E Ackerman et al.
Cancer immunology, immunotherapy : CII, 57(7), 1017-1027 (2008-02-01)
The A33 antigen is a cell surface glycoprotein of the small intestine and colonic epithelium with homology to tight junction-associated proteins of the immunoglobulin superfamily, including CAR and JAM. Its restricted tissue localization and high level of expression have led

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