Every item is shipped based on the best shipping method assessed for the temperature requirements of that specific item. Items are grouped and shipped together whenever
possible, and a separate shipping charge will be included for each shipping method required. Shipping charges listed below are from our US warehouses to the Contiguous US,
Alaska, Hawaii, Canada and Puerto Rico. Shipping charges for countries outside the US and Canada will be determined once order has been received
Please note: We can not ship to PO boxes
Express Blue Ice
Express Dry Ice
Animal Health Prescription Item
SHIPPING METHODS & CHARGES
Ships via FedEx Ground to Contiguous US, Alaska, Canada, Monday through Friday. This method is used for less temperature sensitive items such as lab ware and animal
health products, bulky and/or heavy items
Labware ships FedEx Ground free of charge to the contiguous US
The Trk proto-oncogene encodes a membrane-spanning protein tyrosine kinase, Trk gp140, also designated Trk A, whose expression is restricted in vivo to neurons of the sensory spinal and cranial ganglia of neural crest origin. Nerve growth factor (NGF) stimulates tyrosine phosphorylation of Trk A in neural cell lines and in embryonic dorsal root ganglia. Tyrosine phosphorylation of Trk by NGF is rapid, specific and occurs with picomolar quantities of factor, indicating that the response is mediated by physiological amounts of NGF. Unlike Trk A, tyrosine phosphorylation of Trk B is induced by the brain-derived neurotrophic factor (BDNF) and, to a lesser extent, neurotrophin-3 (NT-3). Additionally, Trk C phosphorylation is induced via interaction with endogenously produced NT-3 and is not dependent on stimulation by NGF.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA
LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences