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Sample enzyme activity data. See certificate of analysis for lot specific activity data.
TrkA, active
Description:
TrkA, active
Trade Name:
Upstate (Millipore)
Qty/Pk:
10 µg
Product Overview:
N-terminal His6-tagged recombinant human TrkA, residues 440-end
Key Applications:
Kinase Assay
Usage Statement:
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.
Entrez Gene Summary:
This gene encodes a member of the neurotrophic tyrosine kinase receptor (NTKR) family. This kinase is a membrane-bound receptor that, upon neurotrophin binding, phosphorylates itself and members of the MAPK pathway. The presence of this kinase leads to cell differentiation and may play a role in specifying sensory neuron subtypes. Mutations in this gene have been associated with congenital insensitivity to pain, anhidrosis, self-mutilating behavior, mental retardation and cancer. Alternate transcriptional splice variants of this gene have been found, but only three have been characterized to date.
UniProt Summary:
FUNCTION: SwissProt: P04629 # Required for high-affinity binding to nerve growth factor (NGF), neurotrophin-3 and neurotrophin-4/5 but not brain- derived neurotrophic factor (BDNF). Known substrates for the Trk receptors are SHC1, PI 3-kinase, and PLC-gamma-1. Has a crucial role in the development and function of the nociceptive reception system as well as establishment of thermal regulation via sweating. Activates ERK1 by either SHC1- or PLC-gamma-1-dependent signaling pathway.
SIZE: 796 amino acids; 87497 Da
SUBUNIT: Exists in a dynamic equilibrium between monomeric (low affinity) and dimeric (high affinity) structures. Binds SH2B2. Interacts with SQSTM1 which bridges NTRK1 to NGFR (By similarity).
SUBCELLULAR LOCATION: Cell membrane; Single-pass type I membrane protein (By similarity). Note=Endocytosed to the endosomes upon treatment of cells with NGF (By similarity).
TISSUE SPECIFICITY: Isoform TrkA-II is primarily expressed in neuronal cells; isoform TrkA-I is found in non-neuronal tissues.
PTM: Ligand-mediated auto-phosphorylation. Interaction with SQSTM1 is phosphotyrosine-dependent.
DISEASE: SwissProt: P04629 # Defects in NTRK1 are a cause of congenital insensitivity to pain with anhidrosis (CIPA) [MIM:256800]. CIPA is characterized by a congenital insensitivity to pain, anhidrosis (absence of sweating), absence of reaction to noxious stimuli, self-mutilating behavior, and mental retardation. This rare autosomal recessive disorder is also known as congenital sensory neuropathy with anhidrosis or hereditary sensory and autonomic neuropathy type IV or familial dysautonomia type II. & Chromosomal aberrations involving NTRK1 are a cause of thyroid papillary carcinoma (PACT) [MIM:188550]. Translocation t(1;3)(q21;q11) with TFG generates the TRKT3 (TRK-T3) transcript by fusing TFG to the 3'-end of NTRK1; a rearrangement with TPM3 generates the TRK transcript by fusing TPM3 to the 3'-end of NTRK1. & Chromosomal aberrations involving NTRK1 are a cause of thyroid papillary carcinoma (PACT) [MIM:188550]. Intrachromosomal rearrangement that links the protein kinase domain of NTRK1 to the 5'-end of the TPR gene forms the fusion protein TRK-T1. TRK-T1 is a 55 kDa protein reacting with antibodies against the C-terminus of the NTRK1 protein.
SIMILARITY: SwissProt: P04629 ## Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily. & Contains 2 Ig-like C2-type (immunoglobulin-like) domains. & Contains 3 LRR (leucine-rich) repeats. & Contains 1 protein kinase domain.
SIZE: 796 amino acids; 87497 Da
SUBUNIT: Exists in a dynamic equilibrium between monomeric (low affinity) and dimeric (high affinity) structures. Binds SH2B2. Interacts with SQSTM1 which bridges NTRK1 to NGFR (By similarity).
SUBCELLULAR LOCATION: Cell membrane; Single-pass type I membrane protein (By similarity). Note=Endocytosed to the endosomes upon treatment of cells with NGF (By similarity).
TISSUE SPECIFICITY: Isoform TrkA-II is primarily expressed in neuronal cells; isoform TrkA-I is found in non-neuronal tissues.
PTM: Ligand-mediated auto-phosphorylation. Interaction with SQSTM1 is phosphotyrosine-dependent.
DISEASE: SwissProt: P04629 # Defects in NTRK1 are a cause of congenital insensitivity to pain with anhidrosis (CIPA) [MIM:256800]. CIPA is characterized by a congenital insensitivity to pain, anhidrosis (absence of sweating), absence of reaction to noxious stimuli, self-mutilating behavior, and mental retardation. This rare autosomal recessive disorder is also known as congenital sensory neuropathy with anhidrosis or hereditary sensory and autonomic neuropathy type IV or familial dysautonomia type II. & Chromosomal aberrations involving NTRK1 are a cause of thyroid papillary carcinoma (PACT) [MIM:188550]. Translocation t(1;3)(q21;q11) with TFG generates the TRKT3 (TRK-T3) transcript by fusing TFG to the 3'-end of NTRK1; a rearrangement with TPM3 generates the TRK transcript by fusing TPM3 to the 3'-end of NTRK1. & Chromosomal aberrations involving NTRK1 are a cause of thyroid papillary carcinoma (PACT) [MIM:188550]. Intrachromosomal rearrangement that links the protein kinase domain of NTRK1 to the 5'-end of the TPR gene forms the fusion protein TRK-T1. TRK-T1 is a 55 kDa protein reacting with antibodies against the C-terminus of the NTRK1 protein.
SIMILARITY: SwissProt: P04629 ## Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily. & Contains 2 Ig-like C2-type (immunoglobulin-like) domains. & Contains 3 LRR (leucine-rich) repeats. & Contains 1 protein kinase domain.
Species:
Human
Molecular Weight:
41kDa
Quality Assurance:
routinely evaluated by phosphorylation of KKKSPGEYVNIEFG substrate
Brand Family:
Upstate
Source:
Expressed by baculovirus in Sf21 insect cells
Protein Target:
TrkA
UniProt Number:
Specific Activity:
For Specific Activity data, refer to the Certificate of Analysis for individual lots of this enzyme
Target Sub-Family:
TK
Storage Conditions:
6 months at -70°C
Promotional Text:
This enzyme is part of KinaseProfiler™, a custom inhibitor selectivity discovery service.
Packaging:
Also available in 250 µg size --call for pricing and availability and reference catalog number 14-571M when ordering the 250 µg size.
Gene Symbol:
- NTRK1
- MTC
- TRK1
- Trk-A
- TRK
- TRKA
- p140-TrkA
- DKFZp781I14186
- CIPA
Protein or Enzyme Type:
- Kinases
- Signal Transduction
Product Name:
TrkA, active
Entrez Gene Number:
Purification Method:
Ni2+/NTA-agarose