Application

Useful for kinase assay.

Biochem/physiol Actions

Recombinant human TRKA (G667C) (440-end) was expressed by Baculovirus in Sf9 insect cells using an N-terminal GST tag. TRKA is a member of the trk proto-oncogene family and encodes a 140kDa, membrane-spanning protein tyrosine kinase that is the functional receptor for nerve growth factor (NGF). NGF elicits the rapid phosphorylation of gp140trk on tyrosine residues leading to increased c-Fos expression, DNA synthesis and morphologic transformation ⁽¹⁾. A decreased expression of TRKA on the striatal cholinergic neurons has been observed which may contribute, when it reaches a crucial threshold, to the death of cholinergic neurons observed in Alzheimer disease ⁽²⁾.

Legal Information

PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC

Reconstitution

Formulated in 50mM Tris-HCl, pH 7.5, 150mM NaCl, 10mM glutathione, 0.1mM EDTA, 0.25 mM DTT, 0.1 mM PMSF, with 25% glycerol.

Storage and Stability

Store in aliquots at -70°C. Avoid freeze/thaw cycles.