SCUBA

TBC1D20 — TBC1 domain family member 20

TBC1D20 belongs to a gene co-expression module in 1 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.

TBC1D20's module in each cell type

Cell typeModuleShares the module with
CD4⁺ T cellsGlycosylation & trafficking
Protein processing & ER
AASDHPPT, ABHD12, ACTR1A, ANKRD35, AP1S1, ARRDC1, ATF6B, ATG5 +25 moreView in SCUBA

About the gene

SynonymsC20orf140, dJ852M4.2
Chromosome20: 423596-462566
Predicted locationMembrane
Essential geneNo
Protein classDisease related genes, Human disease related genes, Predicted membrane proteins
Molecular functionGTPase activation
Biological processHost-virus interaction

Function

GTPase-activating protein (GAP) specific for Rab1 and Rab2 small GTPase families for which it can accelerate the intrinsic GTP hydrolysis rate by more than five orders of magnitude. Also shows GAP activity for RAB18 GTPase. Promotes RAB18 dissociation from the endoplasmic reticulum (ER) membrane into the cytosol, probably through stimulating RAB18 GTP-hydrolysis. Involved in maintaining endoplasmic reticulum structure.

Human Protein Atlas · Open Targets · UniProt

Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.