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Key Documents

HPA011089

Sigma-Aldrich

Anti-CA4 antibody produced in rabbit

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

Synonym(s):

Anti-CA-IV, Anti-Carbonate dehydratase IV, Anti-Carbonic anhydrase 4 precursor, Anti-Carbonic anhydrase IV

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About This Item

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

biological source

rabbit

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

technique(s)

immunohistochemistry: 1:200- 1:500

immunogen sequence

VTTKAKVDKKLGRFFFSGYDKKQTWTVQNNGHSVMMLLENKASISGGGLPAPYQAKQLHLHWSDLPYKGSEHSLDGEHFAMEMHIVHEKEKGTSRNVKEAQDPEDEIAVLA

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CA4(762)

General description

CA4 (carbonic anhydrase IV) is a member of zinc metalloprotein family called carbonic anhydrases, which is made of 16 members. This protein is anchored to the plasma membrane through glycosyl-phosphatiydyl-inositol (GPI) moiety. It has a molecular weight of 35kDa. It is synthesized as a precursor of 312 amino acids, in endoplasmic reticulum and resides in the plasma membrane of endothelial and epithelial cells of multiple organs. This gene maps to human chromosome 17q23, spans 9.5kb, and has seven introns and eight exons.

Immunogen

Carbonic anhydrase 4 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

CA4 (carbonic anhydrase IV) is responsible for regulating the transport of CO2 and HCO3-, and thus, maintains the homeostasis of CO2 and HCO3-, as well as the pH of tissues. It is expressed in the choriocapillaries of eye and epithelium of kidney. In eye, it provides oxygen to retinal pigment epithelium (RPM), by catalyzing the reversible conversion of CO2 to HCO3-. This in turn nourishes the photoreceptor cells. Retinitis pigmentosa type 17 is caused by mutation leading to arginine being replaced by tryptophan (R14W) in the signal peptide of CA4.

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 APREST72182

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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Abdul Waheed et al.
Sub-cellular biochemistry, 75, 157-179 (2013-10-23)
Carbonic anhydrase IV is one of 12 active human isozymes and one of four expressed on the extracellular surfaces of certain endothelial and epithelial cells. It is unique in being attached to the plasma membrane by a glycosyl-phosphatiydyl-inositol (GPI) anchor
T Okuyama et al.
Genomics, 16(3), 678-684 (1993-06-01)
Carbonic anhydrase IV (CA IV) is a glycosylphosphatidylinositol-anchored membrane isozyme expressed on the luminal surfaces of pulmonary (and certain other) capillaries and on the luminal surface of proximal renal tubules. It is of interest for its functional importance in CO2
Aisha Pandor et al.
Journal of cellular biochemistry, 111(3), 735-741 (2010-07-14)
Retinitis pigmentosa is a highly heterogeneous form of inherited blindness which affects more than 1.3 million individuals worldwide. The RP17 form of the disease is caused by an arginine to tryptophan (R14W) mutation in the signal sequence of carbonic anhydrase
Rupak Datta et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(9), 3437-3442 (2009-02-13)
Missense mutations in the carbonic anhydrase IV (CA IV) gene have been identified in patients with an autosomal dominant form of retinitis pigmentosa (RP17). We used two transient expression systems to investigate the molecular mechanism by which the newly identified

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