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HPA017369

Sigma-Aldrich

Anti-CHGA antibody produced in rabbit

enhanced validation

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

Synonym(s):

Anti-CgA, Anti-Chromogranin-A precursor, Anti-Pituitary secretory protein I, Anti-SP-I

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.43

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

recombinant expression
orthogonal RNAseq
Learn more about Antibody Enhanced Validation

technique(s)

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

immunogen sequence

NSPMNKGDTEVMKCIVEVISDTLSKPSPMPVSQECFETLRGDERILSILRHQNLLKELQDLALQGAKERAHQQKKHSGFEDELSEVLENQSSQAELKEAVEEPSSKDVMEKREDSKEAEKSGEATDGARPQALPEPMQESK

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CHGA(1113)

General description

Chromogranin A (CHGA) or CgA is a neuro-secretory protein, and is a member of the granin family. This protein is usually found within chromaffin granules in the adrenal medulla and released along with the catecholamines. This protein is expressed on cells at crypt base in the small intestine.

Immunogen

Chromogranin-A precursor recombinant protein epitope signature tag (PrEST)

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

CHGA (Chromogranin A) protein concentration is known to be elevated in the serum of rheumatoid arthritis (RA) patients. This secretory protein can act as a panenteroendocrine marker. CHGA interacts with mutant SOD1 (superoxide dismutase 1) to cause amyotrophic lateral sclerosis (ALS) by increasing ROS (reactive oxygen species) production in astrocytes. The encoded protein functions as a modulator of cell adhesion, and regulates the synthesis secretory granule. The quantification of circulating immunoreactive CgA can be used in the diagnosis of neuroendocrine neoplasia, and tissue expression pattern of CgA might aid in discovering neuroendocrine nature of tumours.

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 APREST79689

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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Masue M Marbiah et al.
The EMBO journal, 33(14), 1527-1547 (2014-05-21)
Prions consist of aggregates of abnormal conformers of the cellular prion protein (PrP(C)). They propagate by recruiting host-encoded PrP(C) although the critical interacting proteins and the reasons for the differences in susceptibility of distinct cell lines and populations are unknown.
Dongyun Zhang et al.
Biology open, 8(3) (2019-03-06)
Neuroblastoma is a commonly encountered solid tumor in early childhood with high neuroplasticity, and differentiation therapy is hypothesized to lead to tumor mass shrinkage and/or symptom relief. CgA is a tissue specific protein restricted to the diffuse neuroendocrine system, and
D V Cohn et al.
Proceedings of the National Academy of Sciences of the United States of America, 79(19), 6056-6059 (1982-10-01)
We have compared the amino acid and carbohydrate compositions, partial amino acid sequences, immunological crossreactivity, and physical properties of secretory protein I of the parathyroid gland and chromogranin A of adrenal gland. This comparison indicates that these proteins are similar
Gabriele di Comite et al.
Annals of the New York Academy of Sciences, 1069, 428-437 (2006-07-21)
Tumor necrosis factor-alpha (TNFalpha) is a main actor in the pathogenesis of rheumatoid arthritis (RA), interacting with other molecules in complex mechanisms. The neuroendocrine system is known to be involved and Chromogranin A (CHGA) serum levels are elevated in patients
Yoshitatsu Sei et al.
American journal of physiology. Gastrointestinal and liver physiology, 300(2), G345-G356 (2010-11-23)
The spatial orientation of the enteroendocrine cells along the crypt-villus axis is closely associated with their differentiation in the intestine. Here we studied this relationship using primary duodenal crypts and an ex vivo organoid system established from cholecystokinin-green fluorescent protein

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

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