Revision 6

#59678Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP, IHC-P, IF-F

REACTIVITY:

H M R

SENSITIVITY:

Endogenous

MW (kDa):

28

Source/Isotype:

Rabbit IgG

UniProt ID:

#P55087

Entrez-Gene Id:

361

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:100
Immunohistochemistry (Paraffin) 1:50 - 1:200
Immunofluorescence (Frozen) 1:800 - 1:3200

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #39374.

Specificity / Sensitivity

AQP4 (D1F8E) XP® Rabbit mAb recognizes endogenous levels of total AQP4.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the carboxy terminus of human AQP4 protein.

Background

Aquaporins (AQP) are integral membrane proteins that serve as channels in the transfer of water and small solutes across the membrane. There are 13 isoforms of AQP that express in different types of cells and tissues (1,2). AQP1 is found in blood vessels, kidney, eye, and ear. AQP2 is found in the kidney, and it has been shown that the lack of AQP2 results in diabetes (1,3). AQP4 is present in the brain, where it is enriched in astrocytes (1,2,4). AQP5 is found in the salivary and lacrimal gland, AQP6 in intracellular vesicles in the kidney, AQP7 in adipocytes, AQP8 in kidney, testis, and liver, AQP9 is present in liver and leukocytes, and AQP10-11 in the intestine (1,3,4). AQPs are essential for the function of cells and organs. It has been shown that AQP1 and AQP4 regulate the water homeostasis in astrocytes, preventing cerebral edema caused by solute imbalance (5). Several studies have shown the involvement of AQPs in the development of inflammatory processes, including cells of innate and adaptive immunity (6,7).

AQP4 is expressed in brain cells, including neurons, but enriched in astrocytes, as well as in the peripheral nervous system (4,7). AQP4 influences synaptic plasticity and the lack of this protein in the brain may cause memory and learning impairment via glutamate transporter 1 (GLT1) in Alzheimer's disease (8,9,10). It's suggested that AQP4 could play a role in the clearance of β-amyloid, and it may influence the transport of potassium and calcium in Alzheimer's disease (8,9). In Parkinson's disease, the lack of AQP4 results in an increased susceptibility of neurons from the substantia nigra and the ventral tegmental area for MPTP (11).

  1. Takata, K. et al. (2004) Prog Histochem Cytochem 39, 1-83.
  2. Echevarría, M. and Ilundáin, A.A. (1998) J Physiol Biochem 54, 107-18.
  3. Gomes, A. et al. (2018) Front Chem 6, 238.
  4. Xu, M. et al. (2017) Adv Exp Med Biol 969, 81-103.
  5. Kobayashi, H. et al. (2004) J Pharmacol Sci 96, 264-70.
  6. Meli, R. et al. (2018) Front Physiol 9, 101.
  7. Ishibashi, K. et al. (1998) Biochem Biophys Res Commun 244, 268-74.
  8. Hubbard, J.A. et al. (2018) Brain Res Bull 136, 118-129.
  9. Lan, Y.L. et al. (2016) Neural Plast 2016, 4626593.
  10. Lan, Y.L. et al. (2016) Mol Neurobiol 53, 5300-9.
  11. Zhang, J. et al. (2016) Neurosci Lett 614, 7-15.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IHC-P: Immunohistochemistry (Paraffin) IF-F: Immunofluorescence (Frozen)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

使用に関する制限

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Revision 6
#59678

AQP4 (D1F8E) XP® Rabbit mAb

Western Blotting Image 1: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Western blot analysis of mouse, rat, and human brain extracts using AQP4 (D1F8E) XP® Rabbit mAb (upper) and β-actin (D6A8) Rabbit mAb #8457 (lower).
Immunoprecipitation Image 1: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Immunoprecipitation of AQP4 from human cortex extracts. Lane 1 is human cortex lysate immunoprecipitation, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, lanes 3 and 4 represent 1:50 and 1:100 dilutions of the immunoprecipitation of human cortex lysates. Western blot analysis was performed using AQP4 (D1F8E) XP® Rabbit mAb.
Immunohistochemistry Image 1: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human cerebellum using AQP4 (D1F8E) XP® Rabbit mAb.
Immunohistochemistry Image 2: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human squamous cell lung carcinoma using AQP4 (D1F8E) XP® Rabbit mAb.
Immunohistochemistry Image 3: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded mouse brain near third ventricle using AQP4 (D1F8E) XP® Rabbit mAb (left) compared to concentration matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (right).
Immunohistochemistry Image 4: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded mouse cerebellum using AQP4 (D1F8E) XP® Rabbit mAb.
Immunohistochemistry Image 5: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded mouse kidney (left, positive) and mouse prostate (right, negative) using AQP4 (D1F8E) XP® Rabbit mAb.
Immunofluorescence Image 1: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of mouse retina (left) and mouse brain (right) using AQP4 (D1F8E) XP® Rabbit mAb (green) and GFAP (GA5) Mouse mAb #3670 (red). Samples were mounted in ProLong® Gold Antifade Reagent with DAPI #8961 (blue).
Immunofluorescence Image 2: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of mouse kidney using AQP4 (D1F8E) XP® Rabbit mAb (green). Actin filaments were labeled with DyLight 554 Phalloidin #13054 (red). Samples were mounted in ProLong® Gold Antifade Reagent with DAPI #8961 (blue).
Immunofluorescence Image 3: AQP4 (D1F8E) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of mouse colon using AQP4 (D1F8E) XP® Rabbit mAb (green). Actin filaments were labeled with DyLight 554 Phalloidin #13054 (red). Samples were mounted in ProLong® Gold Antifade Reagent with DAPI #8961 (blue).