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HPA014784

Sigma-Aldrich

Anti-Aquaporin-4 Antibody

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, rabbit polyclonal

Sinônimo(s):

Anti-AQP-4, Anti-Aquaporin-4, Anti-MIWC, Anti-Mercurial-insensitive water channel, Anti-WCH4

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About This Item

Número MDL:
Código UNSPSC:
12352203
Número do Atlas de Proteínas Humanas:
NACRES:
NA.41
conjugado:
unconjugated
application:
IF
IHC
clone:
polyclonal
reatividade de espécies:
human, mouse
citations:
45
técnica(s):
immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:2500-1:5000
Preço e disponibilidade não estão disponíveis no momento.

Nome do produto

Anti-AQP4 antibody produced in rabbit, affinity isolated antibody, Prestige Antibodies® Powered by Atlas Antibodies, buffered aqueous glycerol solution

fonte biológica

rabbit

Nível de qualidade

conjugado

unconjugated

forma do anticorpo

affinity isolated antibody

tipo de produto de anticorpo

primary antibodies

clone

polyclonal

linha de produto

Prestige Antibodies® Powered by Atlas Antibodies

Formulário

buffered aqueous glycerol solution

reatividade de espécies

human, mouse

validação aprimorada

orthogonal RNAseq
Learn more about Antibody Enhanced Validation

técnica(s)

immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:2500-1:5000

sequência de imunogênio

CPDVEFKRRFKEAFSKAAQQTKGSYMEVEDNRSQVETDDLILKPGVVHVIDVDRGEEKKGKDQSGEVLSSV

nº de adesão UniProt

Condições de expedição

wet ice

temperatura de armazenamento

−20°C

modificação pós-traducional do alvo

unmodified

Informações sobre genes

human ... AQP4(361)

Descrição geral

AQP4 (aquaporin 4) is an intrinsic protein, and belongs to the family of aquaporin water channels, which consists of thirteen members. This gene is localized to human chromosome 18 q11-q12, and has four exons and three introns. The encoded protein has five loops, intervened by six transmembrane domains. Loops A, C and E face the extraplasmic region, and loops B and D are present in the cytoplasmic region. It is expressed in peripheral organs such as, lung, stomach and kidney. It is the predominant water channel expressed in central nervous system. It is expressed by astrocytes, and localizes preferentially to end-foot processes of astrocytes. It is present as two alternatively spliced forms- long one called M1 and the short one named M23.

Imunogênio

Aquaporin-4 recombinant protein epitope signature tag (PrEST)

Aplicação

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.

Ações bioquímicas/fisiológicas

AQP4 (aquaporin 4) is the major water transporter in brain, and is thought to be responsible for maintaining the water homeostasis in brain. Therefore, AQP4 might play a key role in the pathogenesis of brain edema. Studies show that this transporter is overexpressed in cerebral ischemia. Thus, it might have potential as a therapeutic target for ischemic brain edema. Polymorphisms in this gene are associated with response to brain injury, and the clinical outcome in patients with traumatic brain injury. The short isoform (M23) of AQP4 facilitates the formation of orthogonal array of particles (OAPs), and the size of OAP is determined by the ratio of short (M23): long (M1) isoforms. These OAPs are known to interact with the pathogenic auto-antibodies generated in neuromyelitis optica (NMO). Thus, further studies on this protein might provide insights into the pathogenesis and treatment of NMO.

Características e benefícios

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.

Ligação

Corresponding Antigen APREST73067

forma física

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Informações legais

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

Exoneração de responsabilidade

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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Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 1

Equipamento de proteção individual

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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Certificados de análise (COA)

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1 of 2

Francesco Pisani et al.
The Journal of biological chemistry, 289(44), 30578-30589 (2014-09-23)
Neuromyelitis optica (NMO) is characterized by the presence of pathogenic autoantibodies (NMO-IgGs) against supra-molecular assemblies of aquaporin-4 (AQP4), known as orthogonal array of particles (OAPs). NMO-IgGs have a polyclonal origin and recognize different conformational epitopes involving extracellular AQP4 loops A
Efthimios Dardiotis et al.
Journal of neurotrauma, 31(23), 1920-1926 (2014-07-08)
Accumulating evidence suggests that the extent of brain injury and the clinical outcome after traumatic brain injury (TBI) are modulated, to some degree, by genetic variants. Aquaporin-4 (AQP4) is the predominant water channel in the central nervous system and plays
Fahmy Aboulenein-Djamshidian et al.
Journal of neuropathology and experimental neurology, 74(3), 194-197 (2015-02-11)
Neuromyelitis optica (NMO) is an inflammatory demyelinating disease of the CNS with severe involvement of the optic nerve and spinal cord. Highly specific serum IgG autoantibodies (NMO-IgG) that react with aquaporin-4 (AQP4), the most abundant CNS water channel protein, are
Anna-Lena Vogel et al.
European journal of immunology, 47(3), 458-469 (2017-01-07)
Neuromyelitis optica (NMO) is an autoimmune disorder of the central nervous system (CNS) mediated by antibodies to the water channel protein AQP4 expressed in astrocytes. The contribution of AQP4-specific T cells to the class switch recombination of pathogenic AQP4-specific antibodies
Hallel C Paraiso et al.
Frontiers in cellular neuroscience, 14, 84-84 (2020-04-25)
Brain microvasculature forms a specialized structure, the blood-brain barrier (BBB), to maintain homeostasis and integrity of the central nervous system (CNS). The BBB dysfunction is emerging as a critical contributor to multiple neurological disorders, including stroke, traumatic brain injury, autoimmune

Questions

1–2 of 2 Questions  
  1. How can I find a Specification/description PDF hat contains suggested dilutions, images of Westernblots and IF and Histochemistry to download for this antibody? Anti AQP4 HPA014784

    1 answer
    1. As recommended in the Properties section under technique(s), the suggested dilution factors are as follows:
      IHC (Immunohistochemistry) - 1:2500 - 1:5000
      WB (Western Blot) - 0.04 - 0.4 µg/mL
      ICC-IF (Immunofluorescence) - 0.25 - 2 µg/mL
      Please review the Certificate of Analysis for lot-specific values.

      Helpful?

  2. Does the AQP4 antibody bind to intracellular or extracellular domain of the protein

    1 answer
    1. The antigen this antibody is raised against is the last 72 aa residues in the AQP4 protein sequence. This peptide is available as product APREST73067 https://www.sigmaaldrich.com/US/en/product/sigma/aprest73067. According to Uniprot, this is located on a cytoplasmic region of the protein. https://www.uniprot.org/uniprotkb/P55087/feature-viewer.

      Helpful?

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