Human TrkA ELISA Kit PicoKine® (96 Tests). Quantitate Human NTRK1 in cell culture supeatants and cell lysates. Sensitivity: 10pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.
There is no detectable cross-reactivity with other relevant proteins.
Specificity
Natural and recombinant human TrkA
Subcellular Localization
Cell membrane ; Single-pass type I membrane protein . Early endosome membrane ; Single-pass type I membrane protein . Late endosome membrane ; Single-pass type I membrane protein . Intealized to endosomes upon binding of NGF or NTF3 and further transported to the cell body via a retrograde axonal transport. Localized at cell membrane and early endosomes before nerve growth factor (NGF) stimulation. Recruited to late endosomes after NGF stimulation. Colocalized with RAPGEF2 at late endosomes (By similarity). .
Sample Type
Cell culture supeatants, Cell lysates
Precision
Intra-Assay Precision
Inter-Assay Precision
Sample
1
2
3
1
2
3
n
16
16
16
24
24
24
Mean (pg/ml)
314
1718
5724
303
1722
6073
Standard deviation
22.29
92.77
360.61
25.45
117.09
406.89
CV (%)
7.1%
5.4%
6.8%%
8.4%
6.8%
6.7%
Protein Function
Receptor tyrosine kinase involved in the development and the maturation of the central and peripheral nervous systems through regulation of proliferation, differentiation and survival of sympathetic and nervous neurons. High affinity receptor for NGF which is its primary ligand, it can also bind and be activated by NTF3/neurotrophin-3. However, NTF3 only supports axonal extension through NTRK1 but has no effect on neuron survival. Upon dimeric NGF ligand-binding, undergoes homodimerization, autophosphorylation and activation. Recruits, phosphorylates and/or activates several downstream effectors including SHC1, FRS2, SH2B1, SH2B2 and PLCG1 that regulate distinct overlapping signaling cascades driving cell survival and differentiation. Through SHC1 and FRS2 activates a GRB2-Ras-MAPK cascade that regulates cell differentiation and survival. Through PLCG1 controls NF-Kappa-B activation and the transcription of genes involved in cell survival. Through SHC1 and SH2B1 controls a Ras- PI3 kinase-AKT1 signaling cascade that is also regulating survival. In absence of ligand and activation, may promote cell death, making the survival of neurons dependent on trophic factors.
Background
Tropomyosin receptor kinase A (TrkA) are efficacious in attenuating skeletal pain.1 TrkA mutants were able to activate signaling cascades and were even more efficient in promoting neurite outgrowth than the wild-type receptor.2 TrkA is part of a sub-family of protein kinases which includes TrkB and TrkC. Also, there are other neurotrophic factors structurally related to NGF: BDNF (for Brain-Derived Neurotrophic Factor), NT-3 (for Neurotrophin-3) and NT-4 (for Neurotrophin-4). While TrkA mediates the effects of NGF, TrkB is bound and activated by BDNF, NT-4, and NT-3. Further, TrkC binds and is activated by NT-3.3 TrkA receptor was found in kehumanoconus-affected coeas, along with an increased level of repressor isoform of Sp3 transcription factor.4
Reproducibility
Lots
Lot 1 (pg/ml)
Lot 2 (pg/ml)
Lot 3 (pg/ml)
Lot 4 (pg/ml)
Mean (pg/ml)
Standard Deviation
CV (%)
Sample 1
314
293
280
296
295
12.13
4.1%
Sample 2
1718
1671
1601
1714
1676
47.05
2.8%
Sample 3
5724
5182
5771
4794
5367
404.1
7.5%
*number of samples for each test n=16.
Notes
Material Required But Not Provided: Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer . Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500ml graduated cylinders. Test tubes for dilution.
Gene ID
4914
Gene Name
NTRK1
UniProt ID
P04629
Protein Name
High affinity nerve growth factor receptor
Tissue Specificity
Isoform TrkA-I is found in most non-neuronal tissues. Isoform TrkA-II is primarily expressed in neuronal cells. TrkA-III is specifically expressed by pluripotent neural stem and neural crest progenitors. .
Sequence
Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily.
Applications
ELISA
Research Area
Cancer,Growth and Development,Neurology Process,Neuroscience,Oncoproteins,Oncoproteins/Suppressors
Storage
Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)