Autophosphorylated tyrosine Y516 of NTRK2 (corresponds to Y515 of the full-length mouse Ntrk2 and Y484 of the mature rat Ntrk2) is a docking site for SHC1 isoforms p52 (SHC1-2) and p46 (SHC1-3), which function as activators of RAS signaling (Minichiello et al. 1998, McCarthy and Feinstein 1998, McCarthy and Feinstein 1999). SHC1 is recruited to Y516 of NTRK2 in response to BDNF stimulation (Minichiello et al. 1998, McCarthy and Feinstein 1999, Yuen and Mobley 1999) and NTF4 stimulation (Minichiello et al. 1998, Yuen and Mobley 1999). Recruitment of SHC1 to NTRK2 in response to stimulation by NTF3 has not been examined.
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