Overview

  • Product name
  • Description
    Rabbit polyclonal to Aquaporin 4
  • Specificity
    ab46182 is not suitable for staining Aquaporin 4 in IHC using paraffin embedded sections but some customers have successfully used the antibody in frozen sections (see submitted Abreviews). Please contact Scientific Support if you need further help.
  • Tested applications
    Suitable for: WB, ICC/IF, IHC-FrFl, ICCmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human, Pig
    Predicted to work with: Sheep, Chicken, Cow
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 50 - 150 of Human Aquaporin 4.

    (Peptide available as ab46181.)

  • Positive control
    • This antibody gave a positive signal in the following Tissue Lysates: Brain (Human), Heart (Human) and Brain (Rat).

Properties

  • Form
    Liquid
  • Storage instructions
    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage buffer
    Preservative: 0.02% Sodium Azide
    Constituents: 1% BSA, PBS, pH 7.4
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Clonality
    Polyclonal
  • Isotype
    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab46182 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1 µg/ml. Detects a band of approximately 48 kDa (predicted molecular weight: 35 kDa).Can be blocked with Human Aquaporin 4 peptide (ab46181). Abcam recommends using milk as the blocking agent.
ICC/IF Use at an assay dependent concentration.
IHC-FrFl Use at an assay dependent concentration.
ICC Use at an assay dependent concentration.

Target

  • Function
    Forms a water-specific channel. Osmoreceptor which regulates body water balance and mediates water flow within the central nervous system.
  • Tissue specificity
    Brain - muscle >> heart, kidney, lung, and trachea.
  • Sequence similarities
    Belongs to the MIP/aquaporin (TC 1.A.8) family.
  • Domain
    Aquaporins contain two tandem repeats each containing three membrane-spanning domains and a pore-forming loop with the signature motif Asn-Pro-Ala (NPA).
  • Post-translational
    modifications
    Phosphorylation by PKC at Ser-180 reduces conductance by 50%. Phosphorylation by PKG at Ser-111 in response to glutamats increases conductance by 40%.
  • Cellular localization
    Membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • AQP 4 antibody
    • AQP-4 antibody
    • AQP4 antibody
    • AQP4_HUMAN antibody
    • Aquaporin type 4 antibody
    • Aquaporin-4 antibody
    • Aquaporin4 antibody
    • HMIWC 2 antibody
    • HMIWC2 antibody
    • Mercurial insensitive water channel antibody
    • Mercurial-insensitive water channel antibody
    • MGC22454 antibody
    • MIWC antibody
    • WCH 4 antibody
    • WCH4 antibody
    see all

Anti-Aquaporin 4 antibody images

  • All lanes : Anti-Aquaporin 4 antibody (ab46182) at 1 µg/ml (blocked with 3% milk)

    Lane 1 : Human brain tissue lysate - total protein (ab29466)
    Lane 2 : Brain (Rat) Tissue Lysate
    Lane 3 : Human heart tissue lysate - total protein (ab29431)

    Lysates/proteins at 10 µg per lane.

    Secondary
    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 35 kDa
    Observed band size : 48 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 22 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 12 minutes
  • ab46182 staining Aquaporin 4 in mouse RAW 264.7 cells by Immunocytochemistry/ Immunofluorescence.
    Cells were fixed with paraformaldehyde and blocked with 10% serum for 20 minutes at 24°C. Samples were incubated with primary antibody (1/100 in PBS) for 16 hours at 4°C. An Alexa Fluor® 488-conjugated goat anti-rabbit polyclonal (1/1000) was used as the secondary antibody.

    See Abreview

  • Immunohistochemical analysis of Human kidney tissue, labelling Aquaporin 4 with ab46182, diluted 1/250. Shows strong membranous staining of tubular epithelial cells. 

    See Abreview

  • Immunocytocchemical analysis of 33B cells originating from Rat nervous tissue oligodendroglioma, labelling AQP4 with ab46182 diluted 1/100. Cells were PFA fixed. Hematoxyling used to counterstained. Negative control given were ab46182 was not included.

    See Abreview

  • Immunohistochemical analysis of Pig brain tissue labelling Aquaporin 4 with ab46182 at 1/100. Tissue fixed by perfussion, antigen retrieval performed by microwaving in citric acid buffer. DAB staining. 

    See Abreview

References for Anti-Aquaporin 4 antibody (ab46182)

This product has been referenced in:
  • Sturdivant NM  et al. Acetazolamide Mitigates Astrocyte Cellular Edema Following Mild Traumatic Brain Injury. Sci Rep 6:33330 (2016). WB . Read more (PubMed: 27623738) »
  • Lu L  et al. Neuroprotection of Sanhua Decoction against Focal Cerebral Ischemia/Reperfusion Injury in Rats through a Mechanism Targeting Aquaporin 4. Evid Based Complement Alternat Med 2015:584245 (2015). WB . Read more (PubMed: 26089944) »

See all 7 Publications for this product

Product Wall

Abcam guarantees this product to work in the species/application used in this Abreview.
Application
Western blot
Sample
Mouse Cell lysate - whole cell (mouse adult brain)
Gel Running Conditions
Reduced Denaturing (15%)
Loading amount
25 µg
Specification
mouse adult brain
Blocking step
Milk as blocking agent for 30 minute(s) · Concentration: 5% · Temperature: 25°C
Username

Herr Dr. Vladimir Milenkovic

Verified customer

Submitted Jun 27 2017

Application
Immunohistochemistry free floating
Sample
Pig Tissue sections (Brain)
Specification
Brain
Username

Audrey Lafrenaye

Verified customer

Submitted Jan 18 2017

Application
Immunohistochemistry (Frozen sections)
Blocking step
Serum as blocking agent for 30 minute(s) · Concentration: 10% · Temperature: 24°C
Sample
Rat Tissue sections (Brain)
Specification
Brain
Permeabilization
No
Fixative
Paraformaldehyde
Username

Abcam user community

Verified customer

Submitted Apr 28 2014

We recently compared this antibody against two other antibodies to Aquaporin 4 and they all gave a single band at about 46kDa. However a doublet at 46/48kDa is commonly seen when blotting for this target so if this is what you are seeing then I feel th...

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Thank you for your further questions.

I can confirm the following prices:
CD14 antibody [5A3B11B5] (ab36595) 100 ul £227.00
CD14 antibody [7] (ab49755) 200 ug £227.00
Delivery: £16.00 to United Kingdom

This informat...

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Thank you for your enquiry which has been forwarded to the scientific support team.

I believe our customer service team have already provided a quotation for you. I can confirm that prices are also available on the online datasheets.
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Abcam guarantees this product to work in the species/application used in this Abreview.
Application
Immunocytochemistry
Sample
Human Cell (Kelly Neuroblastoma cell line)
Specification
Kelly Neuroblastoma cell line
Fixative
Paraformaldehyde
Permeabilization
No
Blocking step
Serum as blocking agent for 20 minute(s) · Concentration: 10% · Temperature: 24°C
Username

Abcam user community

Verified customer

Submitted Sep 26 2012

Abcam guarantees this product to work in the species/application used in this Abreview.
Application
Immunocytochemistry/ Immunofluorescence
Sample
Human Cell (Kelly Neuroblastoma cell line)
Specification
Kelly Neuroblastoma cell line
Fixative
Paraformaldehyde
Permeabilization
No
Blocking step
Serum as blocking agent for 20 minute(s) · Concentration: 10% · Temperature: 24°C
Username

Abcam user community

Verified customer

Submitted Sep 26 2012

Abcam guarantees this product to work in the species/application used in this Abreview.
Application
Western blot
Sample
Mouse Cell lysate - whole cell (Neuro2a)
Loading amount
6 µg
Specification
Neuro2a
Gel Running Conditions
Non-reduced Non-Denaturing (Native) (10% gel)
Blocking step
Milk as blocking agent for 16 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 4°C
Username

Abcam user community

Verified customer

Submitted Sep 11 2012

Abcam guarantees this product to work in the species/application used in this Abreview.
Application
Immunocytochemistry/ Immunofluorescence
Sample
Rat Cell (33B)
Specification
33B
Fixative
Paraformaldehyde
Permeabilization
No
Blocking step
Serum as blocking agent for 20 minute(s) · Concentration: 10% · Temperature: 24°C
Username

Abcam user community

Verified customer

Submitted Aug 01 2012

1-10 of 28 Abreviews or Q&A

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