Tbio ANKRD27 Ankyrin repeat domain-containing protein 27

Protein Summary

Description

May be a guanine exchange factor (GEF) for Rab21, Rab32 and Rab38 and regulate endosome dynamics (PubMed:16525121, PubMed:18477474). May regulate the participation of VAMP7 in membrane fusion events; in vitro inhibits VAMP7-mediated SNARE complex formation by trapping VAMP7 in a closed, fusogenically inactive conformation (PubMed:23104059). Involved in peripheral melanosomal distribution of TYRP1 in melanocytes; the function, which probably is implicating vesicle-trafficking, includes cooperation with Rab32, Rab38 and VAMP7 (By similarity). Involved in the regulation of neurite growth; the function seems to require its GEF activity, probably towards Rab21, and VAMP7 but not Rab32/38 (By similarity). Proposed to be involved in Golgi sorting of VAMP7 and transport of VAMP7 vesicles to the cell surface; the function seems to implicate kinesin heavy chain isoform 5 proteins, GOLGA4, RAB21 and MACF1 (PubMed:22705394). Required for the colocalization of VAMP7 and Rab21, probably on TGN sites (PubMed:19745841). Involved in GLUT1 endosome-to-plasma membrane trafficking; the function is dependent of association with VPS29 (PubMed:24856514). Regulates the proper trafficking of melanogenic enzymes TYR, TYRP1 and DCT/TYRP2 to melanosomes in melanocytes (By similarity).

Uniprot Accession IDs

• Q96NW4
• Q71MF5
• Q86UC3
• Q8ND80
• Q9H0I4

Gene Name

• ANKRD27

Ensembl ID

• ENST00000306065
• ENSP00000304292
• ENSG00000105186

Symbol

• VARP
• PP12899

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
virus perturbation	0.9
histone modification site profile	0.85
transcription factor binding site profile	0.78
kinase perturbation	0.71
cell line	0.63

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 48.06   (req: < 5)

Gene RIFs: 8   (req: <= 3)

Antibodies: 74   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 48.06   (req: >= 5)

Gene RIFs: 8   (req: > 3)

Antibodies: 74   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 12

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0