Molecular Target Synopsis
Domains and Structures
Drugs and Clinical Candidates
Ligand Efficiency Plot
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
Germline Genetics

RAB5A (P20339) - Overview - Molecular Target Synopsis


RAB5A, Ras-related protein Rab-5A
UniProt P20339

Also Known as RAB5A_HUMAN, RAB5A, RAB5

The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion. RAB5A is required for the fusion of plasma membranes and early endosomes (PubMed:10818110, PubMed:14617813, PubMed:16410077, PubMed:15378032). Contributes to the regulation of filopodia extension (PubMed:14978216). Required for the exosomal release of SDCBP, CD63, PDCD6IP and syndecan (PubMed:22660413). Regulates maturation of apoptotic cell-containing phagosomes, probably downstream of DYN2 and PIK3C3. Interacts with SGSM1 and SGSM3 (By similarity). Interacts with PIK3CB (By similarity). Interacts with GDI1; this promotes dissociation from membranes (PubMed:23815289). Interacts with EEA1 (PubMed:10491193, PubMed:20534488). Interacts with RIN1 and GAPVD1, which regulate its pathway, probably by acting as a GEF (PubMed:11703925, PubMed:16410077). Interacts with RINL. Interacts with ALS2CL, SUN2, ZFYVE20 and RUFY1 (PubMed:10818110, PubMed:11062261, PubMed:15388334, PubMed:14617813, PubMed:16034420). Interacts with RABEP1; one RABEP1 homodimer binds two RAB5A chains, but at opposite sides of the dimer (PubMed:15378032). Interacts with OCRL (PubMed:25869668). Interacts with INPP5F. May be a component of a complex composed of RAB5A, DYN2 and PIK3C3 (By similarity). Does not interact with BLOC-3 complex (heterodimer of HPS1 and HPS4) (By similarity). Interacts with CLN5 (PubMed:22431521). Interacts with APPL2.

Inspect Structure
See all 3D Structures for RAB5A

Isoforms / Transcripts (Protein Coding)

Sub-cellular localization

Gene Copy Number Variation

In COSMIC - Cell Lines Project RAB5A has gain in 3 cell-lines, loss in 4 cell-lines and no signal in 998 cell-lines. (see details)

Gene Expression

In NCI60, the highest expressing cell lines are: MCF7, KM12, TK_10

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: Hs 746T, MFM-223, MKN-45

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: NHLF, HSMM, NHEK

(see details)

3D Structures

For RAB5A there are:
13 structures (22 chains) solved
12 are solved in complex with at least one small molecule ligand

(see details)
Molecular Target 3D Synopsis

Screening and Chemistry

RAB5A has been screened with compounds ( bioactivities). (see details)