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Type VII RTKs: Neurotrophin receptor/Trk family C

Formerly known as: Neurotrophin receptor/Trk family

Unless otherwise stated all data on this page refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).


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The neurotrophin receptor family of RTKs include trkA, trkB and trkC (tropomyosin-related kinase) receptors, which respond to NGF, BDNF and neurotrophin-3, respectively. They are associated primarily with proliferative and migration effects in neural systems. Various isoforms of neurotrophin receptors exist, including truncated forms of trkB and trkC, which lack catalytic domains. p75 (TNFRSF16, also known as nerve growth factor receptor), which has homologies with tumour necrosis factor receptors, lacks a tyrosine kinase domain, but can signal via ceramide release and nuclear factor κB (NF-κB) activation. Both trkA and trkB contain two leucine-rich regions and can exist in monomeric or dimeric forms.


trkA (neurotrophic receptor tyrosine kinase 1) C Show summary » More detailed page

trkB (neurotrophic receptor tyrosine kinase 2) C Show summary » More detailed page

trkC (neurotrophic receptor tyrosine kinase 3) C Show summary » More detailed page


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How to cite this family page

Database page citation:

Type VII RTKs: Neurotrophin receptor/Trk family. Accessed on 28/10/2020. IUPHAR/BPS Guide to PHARMACOLOGY,

Concise Guide to PHARMACOLOGY citation:

Alexander SPH, Fabbro D, Kelly E, Mathie A, Peters JA, Veale EL, Armstrong JF, Faccenda E, Harding SD, Pawson AJ, Sharman JL, Southan C, Davies JA; CGTP Collaborators. (2019) The Concise Guide to PHARMACOLOGY 2019/20: Catalytic receptors. Br J Pharmacol. 176 Suppl 1: S247-S296.