Summary

Name VPS18
Full Name Vacuolar protein sorting-associated protein 18 homolog
Synonyms hVPS18 | KIAA1475
Primary ID Q9P253
Links - -
Type protein
Relations 6
Function Plays a role in vesicle-mediated protein trafficking to lysosomal compartments including the endocytic membrane transport and autophagic pathways. Believed to act as a core component of the putative HOPS and CORVET endosomal tethering complexes which are proposed to be involved in the Rab5-to-Rab7 endosome conversion probably implicating MON1A/B, and via binding SNAREs and SNARE complexes to mediate tethering and docking events during SNARE-mediated membrane fusion. The HOPS complex is proposed to be recruited to Rab7 on the late endosomal membrane and to regulate late endocytic, phagocytic and autophagic traffic towards lysosomes. The CORVET complex is proposed to function as a Rab5 effector to mediate early endosome fusion probably in specific endosome subpopulations (PubMed:11382755, PubMed:23351085, PubMed:24554770, PubMed:25783203). Required for fusion of endosomes and autophagosomes with lysosomes (PubMed:25783203). Involved in dendrite development of Pukinje cells (By similarity).

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates activity img/direct_inhibition.png monoubiquitination GGA3 0.506
Publications: 1 Organism: In Vitro
+ form complex img/form-complex.png binding HOPS tethering complex 0.906
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding VPS18 0.325
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding CORVET tethering complex 0.865
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination PLK2 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png ubiquitination VPS18 0.2
Publications: 1 Organism: Homo Sapiens