Product Description |
Recombinant CHO-K1 cells stably overexpress human tachykinin receptor 3
(NK3) on the surface and contain high levels of G protein Gαq to couple with
the receptor in downstream signaling pathways. |
Applications |
Calcium mobilization
assay, IP-One assay. |
Expressed Gene |
Codon optimized from
NM_001059; no expressed tags |
Target Protein |
NP_001050 |
Host Cell |
CHO-K1 |
Size |
Two vials of frozen
cells (>1×106 per vial in 1 mL) |
Storage |
Store cells in liquid nitrogen immediately upon
receipt. Thaw and recover cells within one year from the date received. |
Mycoplasma Status |
Negative. The
mycoplasma test was performed with MycoAlert™ PLUS Mycoplasma Detection Kit
(Cat. No. LT07-318, Lonza). |
Stability |
Stable through more than 16 passages with no significant changes in assay
performance or expression profile. |
Culture Properties |
Adherent |
Freeze Medium |
45% Ham’s F-12K
(Kaighn’s) (Cat. No. 21127, Life Technologies), 45% FBS (Cat. No. 10099-141,
Gibco), 10% DMSO (Cat. No. D2650, Sigma) |
Complete Growth Medium |
Ham’s
F-12K (Kaighn’s), 10% FBS |
Culture Medium |
Ham’s F-12K
(Kaighn’s), 10% FBS, 400 μg/ml G418 (Cat. No. 10131-035,
Gibco) |
Gene Synonyms |
TACR3, NK3R, NMKR |
Background |
Tachykinins
are peptides sharing a common C-terminal amino acid sequence: Phe-X-Gly-Leu-Met·NH2.
This neuropeptide family is composed of substance P, neurokinin A, and
neurokinin B, which are widely distributed in mammalian central and peripheral
nervous systems. These three molecules serve as both neurotransmitters and
neuromodulators. Their actions are mediated by binding with three distinct
receptors, namely NK1, NK2, and NK3. NK3 receptors show affinity for neurokinin
B. They are predominantly expressed in both the peripheral and central nervous
systems. NK3 receptors appear to modulate monoaminergic and amino acid
neurotransmission. Studies show that
manipulating modulation of NK3 receptor activity may have therapeutic utility
in psychiatric diseases such as schizophrenia and affective disorders. |
Figure 1: Neurokinin B-induced concentration-dependent stimulation of intracellular calcium mobilization in CHO-K1/NK3 cells. The cells were loaded with Calcium-4 prior to stimulation with an NK3 receptor agonist, Neurokinin B. The intracellular calcium change was measured by FLIPRTETRA. The relative fluorescent units (RFU) were normalized and plotted against the log of the cumulative doses (5-fold dilution) of Neurokinin B (Mean ± SEM, n = 2). The EC50 of Neurokinin B on NK3 in CHO-K1 cells was 12.0 nM.
Notes:
EC50 value is calculated with four parameter logistic equation:
Y=Bottom + (Top-Bottom) / (1+10^((LogEC50-X)*Hill Slope))
X is the logarithm of concentration. Y is the response
Y is % stimulation of RFU and starts at Bottom and goes to Top with a sigmoid shape.
For research use only. Not intended for human or animal clinical trials, therapeutic
or diagnostic use.
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