← Genes & pathways

Gene & pathway reference · FROM DR. PURSER’S TEACHING

NTRK2

NTRK2 encodes TrkB, a receptor involved in responding to neurotrophic signals such as BDNF. These signals support nervous-system function and plasticity. NTRK2 is not a phosphatidylserine absorption transporter.

Based on teaching by Dan Purser, MD. How we prepare these guides

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

A receptor for neurotrophic signals

A receptor for neurotrophic signals

NTRK2 encodes TrkB, a receptor involved in responding to neurotrophic signals such as BDNF. These signals support nervous-system function and plasticity. NTRK2 is not a phosphatidylserine absorption transporter.

Putting the pieces together

Dr. Purser’s notes connect NTRK2 with brain-health and phosphatidylserine discussions. That is a support framework, not evidence that a SNP prevents phosphatidylserine absorption or predicts dementia. Changes in memory deserve evaluation for sleep, medications, mood and other potentially treatable contributors.

A question to bring to your visit

What clinical assessment is needed for my memory or concentration concern before choosing support?

Variant lookup

These names can help you find an entry on your original genetic report. Seeing a name here does not tell you whether it affects your health or whether you need treatment.

Names you may see

Neurotrophic Receptor Tyrosine Kinase 2