Human TRKC, also known as NTKR3 (Neurotrophic Tyrosine Kinase Receptor, type 3) or NT-3 Receptor, GenBank Accession No. NM_001012338, a.a. 507-(end), with G623E mutation and N-terminal His-tag, MW=39kDa, expressed in Sf9 cells via a baculovirus expression system.