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Recombinant human TrkA (mutated G595R + A608D) protein (Active) is a Human Fragment protein, in the 440 to 796 aa range, expressed in Sf9, with >80% purity and suitable for SDS-PAGE, FuncS.

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Images

Functional Studies - Recombinant human TrkA (mutated G595R + A608D) protein (Active) (AB269069), expandable thumbnail
  • SDS-PAGE - Recombinant human TrkA (mutated G595R + A608D) protein (Active) (AB269069), expandable thumbnail

Key facts

Purity

>80% SDS-PAGE

Expression system

Sf9 cells

Tags

GST tag N-Terminus

Applications

SDS-PAGE, FuncS

Biologically active

Yes

Reactivity data

Application

SDS-PAGE

Reactivity

Reacts

Dilution info

-

Notes

-

Application

FuncS

Reactivity

Reacts

Dilution info

-

Notes

-

Target data

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 (PubMed:1281417, PubMed:15488758, PubMed:17196528, PubMed:1849459, PubMed:1850821, PubMed:22649032, PubMed:27445338, PubMed:8325889). 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 (By similarity). Upon dimeric NGF ligand-binding, undergoes homodimerization, autophosphorylation and activation (PubMed:1281417). 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.Isoform TrkA-IIIResistant to NGF, it constitutively activates AKT1 and NF-kappa-B and is unable to activate the Ras-MAPK signaling cascade. Antagonizes the anti-proliferative NGF-NTRK1 signaling that promotes neuronal precursors differentiation. Isoform TrkA-III promotes angiogenesis and has oncogenic activity when overexpressed.

Alternative names

Recommended products

Recombinant human TrkA (mutated G595R + A608D) protein (Active) is a Human Fragment protein, in the 440 to 796 aa range, expressed in Sf9, with >80% purity and suitable for SDS-PAGE, FuncS.

Key facts

Purity

>80% SDS-PAGE

Expression system

Sf9 cells

Applications

SDS-PAGE, FuncS

Biological activity

The specific activity of ab269069 was 5.5 nmol/min/mg in a kinase assay using Poly (4:1 Glu, Tyr) synthetic peptide as substrate.

Accession
P04629-1
Animal free

No

Species

Human

Concentration
Loading...
Storage buffer

pH: 7.5
Constituents: 25% Glycerol (glycerin, glycerine), 0.87% Sodium chloride, 0.79% Tris HCl, 0.31% Glutathione, 0.004% (R*,R*)-1,4-Dimercaptobutan-2,3-diol, 0.003% EDTA, 0.002% PMSF

Sequence info

Amino acid sequence

Accession

P04629

Protein length

Fragment

Amino acids

440 to 796

Nature

Recombinant

Tags

GST tag N-Terminus

Specifications

Form

Liquid

Additional notes

Affinity purified.

General info

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 (PubMed:1281417, PubMed:15488758, PubMed:17196528, PubMed:1849459, PubMed:1850821, PubMed:22649032, PubMed:27445338, PubMed:8325889). 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 (By similarity). Upon dimeric NGF ligand-binding, undergoes homodimerization, autophosphorylation and activation (PubMed:1281417). 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.

Sequence similarities

Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily.

Post-translational modifications

Ligand-mediated autophosphorylation (PubMed:1281417, PubMed:15488758, PubMed:27676246, PubMed:28177573, PubMed:2927393, PubMed:7510697, PubMed:8155326, PubMed:8325889). Interaction with SQSTM1 is phosphotyrosine-dependent. Autophosphorylation at Tyr-496 mediates interaction and phosphorylation of SHC1 (PubMed:15488758, PubMed:7510697, PubMed:8155326, PubMed:8325889).

Subcellular localisation

Early endosome membrane, Late endosome membrane, Recycling endosome membrane

Storage

Shipped at conditions

Dry Ice

Appropriate short-term storage conditions

-80°C

Appropriate long-term storage conditions

-80°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

TrkA also known as NTRK1 is a neurotrophin receptor and a member of the tropomyosin receptor kinase (TRK) family. It has a molecular mass of approximately 140 kDa. TrkA is expressed mostly in neuronal tissues particularly in the sensory ganglia sympathetic neurons and certain portions of the central nervous system. Mechanically TrkA activates upon binding to nerve growth factor (NGF) leading to receptor dimerization and autophosphorylation triggering downstream signaling cascades essential for neuronal growth and survival.

Biological function summary

TrkA plays an important role in the regulation of neurotrophic signaling. TrkA existing often as part of larger signaling complexes modulates neuronal differentiation development and apoptosis. It ensures proper neural connections during development by responding to NGF which is important for neurons' health and plasticity. TrkA also aids in the response to injury by promoting neuronal repair and regeneration.

Pathways

TrkA engagement activates prominent pathways like the MAPK/ERK and PI3K/AKT signaling cascades. These pathways facilitate important cellular processes like proliferation survival and metabolism. Through these pathways TrkA interacts and cooperates with proteins like SHC GRB2 and PLCγ among others to execute cellular functions. These signaling pathways enable the coordinated response needed for neural tissue maintenance and development.

Associated diseases and disorders

TrkA abnormalities are linked to conditions like congenital insensitivity to pain with anhidrosis (CIPA) and certain cancers. Mutations in NTRK1 can disrupt NGF signaling leading to neurological deficits observed in CIPA. In cancer aberrant TrkA signaling often due to gene fusions contributes to tumorigenesis. TrkA-related signals influence oncogenic proteins such as RAS and BRAF illustrating its role in cancer progression.

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2 product images

  • Functional Studies - Recombinant human TrkA (mutated G595R + A608D) protein (Active) (ab269069), expandable thumbnail

    Functional Studies - Recombinant human TrkA (mutated G595R + A608D) protein (Active) (ab269069)

    The specific activity of ab269069 was 5.5 nmol/min/mg in a kinase assay using Poly (4:1 Glu, Tyr) synthetic peptide as substrate.

  • SDS-PAGE - Recombinant human TrkA (mutated G595R + A608D) protein (Active) (ab269069), expandable thumbnail

    SDS-PAGE - Recombinant human TrkA (mutated G595R + A608D) protein (Active) (ab269069)

    SDS-PAGE analysis of ab269069.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

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