Synaptojanin-2-binding protein (Synj2bp)

Isoform 1 modulates endocytosis of activin type 2 receptor kinases through the Ral/RALBP1-dependent pathway and may be involved in suppression of activin-induced signal transduction. Isoform 2 and isoform 3 show a stimulatory affect on activin- induced signal transduction and improve activin type 2 expression at the cell surface.

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