Assertion: ngf | /r/CapableOf | activate erk
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Source sentences:
text: For example, while both NGF and EGF appear to utilize the classic Shc/Grb2/Sos/Ras/C-Raf/MEK pathway to activate Erk, NGF also utilizes an accessory route to Erk activation that utilizes Gab2/CrkL/C3G/Rap1/B-Raf/MEK (Figure 1).