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Key Documents

ABN1383

Sigma-Aldrich

Anti-phospho-TrkA (Tyr794) Antibody

from rabbit, purified by affinity chromatography

Synonym(s):

High affinity nerve growth factor receptor, Neurotrophic tyrosine kinase receptor type 1, Slow nerve growth factor receptor, p140-TrkA, Trk-A, phospho-TrkA (Tyr794)

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

purified by

affinity chromatography

species reactivity

rat, human

species reactivity (predicted by homology)

mouse (based on 100% sequence homology)

technique(s)

immunocytochemistry: suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

phosphorylation (pTyr794)

Gene Information

General description

High affinity nerve growth factor receptor (EC 2.7.10.1; UniProt P35739; also known as Neurotrophic tyrosine kinase receptor type 1, p140-TrkA, Slow nerve growth factor receptor, Trk-A, TrkA neurotrophin receptor, TrkA proto-oncogene receptor, Tropomyosin-related kinase A) is encoded by the Ntrk1 gene (also known as Trk, Trka) in rat (Gene ID 59109). Neurotrophins mediate a wide range of neuronal functions, including survival, differentiation, growth, and death, via two classes of transmembrane receptors, the Trk receptor tyrosine kinase and the p75 neurotrophin receptor. While nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and NT-4 all bind the p75 receptor, TrkA is selective for NGF, TrkB is selective for BDNF and NT-4, and TrkC is selective for NT-3. TrkA and TrkB receptors can also be activated by ligands of the G-protein-coupled receptor (GPCRs), including the nucleoside adenosine or adenosine agonists, such as CGS 21680 and the pituitary adenylate cyclase-activating polypeptide (PACAP). In addition to transactivation via GPCRs, Glucocorticoids (GCs) are also reported to promote TrkA/B/C activation due to signaling cross-talk between Trk and GC receptor (GR).

Specificity

This polyclonal antibody selectively detects NGF-induced pTyr794 phosphorylation of TrkA in cultured primary embryonic rat septal neurons, but not BDNF-induced pTyr816 phosphorylation of TrkB in rat hippocampal neurons (PMID 18347336).

Immunogen

Epitope: Near C-terminus
Linear peptide corresponding to rat TrkA sequence near the C-terminus with phosphorylated Tyr794.

Application

Detect phospho-TrkA (Tyr794) using this Anti-phospho-TrkA (Tyr794) Antibody validated for use in Western Blotting and Immunocytochemistry.
Research Category
Neuroscience
Research Sub Category
Developmental Signaling
Western Blotting Analysis: A representative lot detected NGF-stimulated Tyr794 phosphorylation of exogenously expressed human TrkA in PC12 cells (Courtesy of Dr. Moses V. Chao, Langone Medical Center, New York University).
Immunocytochemistry Analysis: A representative lot detected PACAP-induced TrkA Tyr794 phosphorylation in cultured rat basal forebrain neurons (Courtesy of Dr. Moses V. Chao, Langone Medical Center, New York University).
Western Blotting Analysis: A representative lot detected NGF-stimulated Tyr794 phosphorylation of exogenously expressed human TrkA in PC12 cells (Rajagopal, R., et al. (2004). 24(30):6650-6658).
Western Blotting Analysis: A representative lot detected NGF-stimulated TrkA Tyr794 phosphorylation in cultured rat embryonic E18 septal neurons (Jeanneteau, F., et al. (2008). Proc Natl Acad Sci USA. 105(12):4862-4867).
Western Blotting Analysis: A representative lot detected NGF-dependent TrkA Tyr794 phosphorylation in cultured DRG neurons from E16.5 rat embryos (Arevalo, J.C., et al. (2006). Neuron. 50(4):549-559).
Immunocytochemistry Analysis: A representative lot detected PACAP38-induced TrkA Tyr794 phosphorylation in cultured rat basal forebrain neurons, as well as CGS 21680- and NGF-induced Tyr794 phosphorylation of exogenously expfressed human TrkA in serum-starved PC12 cultures (Rajagopal, R., et al. (2004). 24(30):6650-6658).
Immunocytochemistry Analysis: A representative lot detected NGF-stimulated TrkA Tyr794 phosphorylation in cultured DRG neurons from E16.5 rat embryos (Arevalo, J.C., et al. (2006). Neuron. 50(4):549-559).

Quality

Evaluated by Western Blotting in NGF treated human TrkA-transfected PC12 cell lysate.

Western Blotting Analysis: 2.0 µg/mL of this antibody detected phospho-TrkA (Tyr794) in 10 µg of NGF treated human TrkA-transfected PC12 cell lysate.

Target description

~140 kDa observed

Physical form

Affinity purified
Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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Transactivation of Trk neurotrophin receptors by G-protein-coupled receptor ligands occurs on intracellular membranes.
Rajagopal, R; Chen, ZY; Lee, FS; Chao, MV
The Journal of Neuroscience null
Ronja Markworth et al.
Journal of cell science, 134(20) (2021-09-07)
Axonal survival and growth requires signalling from tropomyosin receptor kinases (Trks). To transmit their signals, receptor-ligand complexes are endocytosed and undergo retrograde trafficking to the soma, where downstream signalling occurs. Vesicles transporting neurotrophic receptors to the soma are reported to

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