The P2X3 (purinergic receptor P2X 3) receptor is expressed in primary afferent neurons. It is a subtype of P2X receptors family of ligand-gated ion channels, activated by extracellular ATP (adenosine triphosphate).
Immunogen
peptide (C)VEKQSTDSGAYSIGH corresponding to residues 383-397 of rat P2rx3.
Application
Anti-Purinergic Receptor P2X3 antibody has been used in immunohistochemistry.
Biochem/physiol Actions
The P2X3 (purinergic receptor P2X 3) plays a major role in the transmission of pain. Inducing P2X3 generates a desensitizing transient response and initiating P2X2/3 creates a relatively persistent response. P2X3 decreases the sympathetic tone in SH rats.
Target description
The P2X3 receptor is highly expressed on nociceptive sensory neurons in dorsal root ganglia (DRG) as a homomer or as a heteromer (P2X3/P2X2). ATP released from damaged cells activates the P2X3 receptor to initiate nociceptive signals. Involvement of ATP in the mechanism of chronic pain contributes to P2X3 receptor as a possible target for the development of pain therapeutics.
Physical form
Lyophilized from phosphate buffered saline, pH 7.4, containing 1% BSA and 0.05% sodium azide.
Reconstitution
Reconstitute the lyophilized vial with 50 μL or 200 μL deionized water, depending on package size. Further dilutions should be made using a carrier protein such as BSA (1-3%).
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Mirror-image pain is a phenomenon in which unprovoked pain is detected on the uninjured contralateral side after unilateral nerve injury. Although it has been implicated that enhanced production of nerve growth factor (NGF) in the contralateral dorsal root ganglion is
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