Synaptic Systems - Aquaporin2

Cat. No.: 429 204

Amount: 100 µl

Price: $370.00

WB

IHC

IHC-P

Background

Aquaporin2 (AQP2) is a key water channel in kidney collecting duct cells, regulated mainly by vasopressin through both cAMP-dependent and independent pathways (1, 4). Phosphorylation at Ser256 is essential for AQP2 membrane targeting, while Ser269 stabilizes it (3). Recent research suggests that cAMP-independent mechanisms also regulate AQP2 trafficking, challenging traditional models (4). Additionally, LRBA has been identified as a crucial protein for AQP2 phosphorylation and urinary concentration (2). Post-translational modifications such as ubiquitination and glycosylation further influence AQP2 stability and function (3). These insights have significant implications for treating water balance disorders, such as nephrogenic diabetes insipidus (1, 2).

For more information on protein expression pattern, please refer to the overview image in our SYSY Antibodies ATLAS.

1 ) Brown D et al., Am J Physiol Renal Physiol (2003)
2 ) Hara Y et al., Proc Natl Acad Sci U S A (2022)
3 ) Moeller HB et al., Am J Physiol Renal Physiol (2011)
4 ) Olesen ET et al., Am J Physiol Renal Physiol (2017)

Protocols

WB

IHC

IHC-P

Cat. No. 429 204	100 µl antiserum, lyophilized. For reconstitution add 100 µl H₂O, then aliquot and store at -20°C until use. Antibodies should be stored at +4°C when still lyophilized. Do not freeze!
Applications	WB: 1 : 1000 (AP staining) gallery IP: not tested yet ICC: not tested yet IHC: 1 : 500 up to 1 : 1000 gallery IHC-P: 1 : 1000 up to 1 : 4000 gallery Western blot (WB); separation of proteins by PAGE and subsequent transfer to a membrane. Detection of target molecules is carried out with antibodies. Some antibodies require special sample preparation steps. For details, please refer to the “Remarks” section. Immunoprecipitation (IP); Immunoisolation or pulldown of a target molecule using an antibody. For details and product specific hints, please refer to the ”Remarks” section. Immunocytochemistry (ICC) on 4% PFA fixed cells. Immunoreactivity is usually revealed by fluorescence. Some antibodies require special fixation methods. For details, please refer to the “Remarks” section. Immunohistochemistry (IHC) on 4% PFA perfusion fixed tissue with 24h PFA post fixation. Immunoreactivity is usually revealed by fluorescence or a chromogenic substrate. Some antibodies require special fixation methods or antigen retrieval steps. For details, please refer to the ”Remarks” section. Immunohistochemistry (IHC-P) of formalin fixed, paraffin embedded (FFPE) tissue (some antibodies require special antigen retrieval steps, please refer to the ”Remarks” section). Immunoreactivity is usually revealed by fluorescence or a chromogenic substrate.
Immunogen	Synthetic peptide corresponding to residues near the carboxy terminus of rat Aquaporin2. (UniProt Id: P34080)
Reactivity	Reacts with: rat (P34080), mouse (P56402), human (P41181). Other species not tested yet.
Data sheet	429_204.pdf

Aquaporin2 antibody - 429 204