Summary

Name DENND3
Full Name DENN domain-containing protein 3
Synonyms DEND3_HUMAN | KIAA0870
Primary ID A2RUS2
Links - -
Type protein
Relations 5
Function Guanine nucleotide exchange factor (GEF) activating RAB12. Promotes the exchange of GDP to GTP, converting inactive GDP-bound RAB12 into its active GTP-bound form (PubMed:20937701). Regulates autophagy in response to starvation through RAB12 activation. Starvation leads to ULK1/2-dependent phosphorylation of Ser-472 and Ser-490, which in turn allows recruitment of 14-3-3 adapter proteins and leads to up-regulation of GEF activity towards RAB12 (By similarity). Also plays a role in protein transport from recycling endosomes to lysosomes, regulating, for instance, the degradation of the transferrin receptor and of the amino acid transporter PAT4 (PubMed:20937701). Starvation also induces phosphorylation at Tyr-858, which leads to up-regulated GEF activity and initiates autophagy (By similarity).

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation DENND3 0.41
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation DENND3 0.2
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png guanine nucleotide exchange factor RAB12 0.609
Publications: 1 Organism: Homo Sapiens