InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: RAB21

Summary

InnateDB Protein

IDBP-48265.6

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

RAB21

Protein Name

RAB21, member RAS oncogene family

Synonyms

Species

Homo sapiens

Ensembl Protein

ENSP00000261263

InnateDB Gene

IDBG-48263 (RAB21)

Protein Structure

UniProt Annotation

Function

Regulates integrin internalization and recycling, but does not influence the traffic of endosomally translocated receptors in general. As a result, may regulate cell adhesion and migration (By similarity). During the mitosis of adherent cells, controls the endosomal trafficking of integrins which is required for the successful completion of cytokinesis. {ECO:0000250, ECO:0000269PubMed:18804435}.

Subcellular Localization

Endoplasmic reticulum membrane {ECO:0000250}; Lipid-anchor {ECO:0000250}. Golgi apparatus membrane. Early endosome membrane. Cytoplasmic vesicle membrane. Cleavage furrow. Note=In nonpolarized epithelial Caco-2 cells, found in the endoplasmic reticulum; in polarized cells, observed in vesicles in the apical cytoplasm. During mitosis, in mid- telophase, localized in the ingressing cleavage furrow. In late telophase, detected at the opposite poles of the daughter cells, in vesicles at the base of lamellipodia formed by the separating daughter cells.

Disease Associations

Tissue Specificity

Widely expressed. In jejunal tissue, predominantly expressed in the apical region of the epithelial cell layer of the villi, weak expression, if any, in the crypt epithelium. Capillary endothelium and some cell types in the lamina propria also show expression. {ECO:0000269PubMed:10887961}.

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 8 experimentally validated interaction(s) in this database.
They are also associated with 1 interaction(s) predicted by orthology.

Experimentally validated
Total	8 [view]
Protein-Protein	7 [view]
Protein-DNA	0
Protein-RNA	1 [view]
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	1 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0003924	GTPase activity
GO:0005515	protein binding
GO:0005525	GTP binding
GO:0019003	GDP binding

Biological Process

GO:0006184	GTP catabolic process
GO:0006886	intracellular protein transport
GO:0006913	nucleocytoplasmic transport
GO:0007165	signal transduction
GO:0007264	small GTPase mediated signal transduction
GO:0015031	protein transport

Cellular Component

GO:0000139	Golgi membrane
GO:0005622	intracellular
GO:0005634	nucleus
GO:0005737	cytoplasm
GO:0005768	endosome
GO:0005789	endoplasmic reticulum membrane
GO:0016020	membrane
GO:0030659	cytoplasmic vesicle membrane
GO:0031901	early endosome membrane
GO:0032154	cleavage furrow
GO:0070062	extracellular vesicular exosome

Protein Structure and Domains

PDB ID

InterPro

IPR000795 Elongation factor, GTP-binding domain
IPR001806 Small GTPase superfamily
IPR002041 Ran GTPase
IPR003578 Small GTPase superfamily, Rho type
IPR003579 Small GTPase superfamily, Rab type
IPR005225 Small GTP-binding protein domain
IPR006689 Small GTPase superfamily, ARF/SAR type
IPR006762 Gtr1/RagA G protein
IPR013684 Mitochondrial Rho-like
IPR020849 Small GTPase superfamily, Ras type
IPR027417 P-loop containing nucleoside triphosphate hydrolase

PFAM

PF00009
PF00071
PF00025
PF04670
PF08477

PRINTS

PR00315
PR00449
PR00627
PR00328

PIRSF

SMART

SM00176
SM00174
SM00175
SM00173

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt