Tbio VPS26A Vacuolar protein sorting-associated protein 26A

Protein Summary

Description

Acts as component of the retromer cargo-selective complex (CSC). The CSC is believed to be the core functional component of retromer or respective retromer complex variants acting to prevent missorting of selected transmembrane cargo proteins into the lysosomal degradation pathway. The recruitment of the CSC to the endosomal membrane involves RAB7A and SNX3. The SNX-BAR retromer mediates retrograde transport of cargo proteins from endosomes to the trans-Golgi network (TGN) and is involved in endosome-to-plasma membrane transport for cargo protein recycling. The SNX3-retromer mediates the retrograde endosome-to-TGN transport of WLS distinct from the SNX-BAR retromer pathway. The SNX27-retromer is believed to be involved in endosome-to-plasma membrane trafficking and recycling of a broad spectrum of cargo proteins (Probable). The CSC seems to act as recruitment hub for other proteins, such as the WASH complex and TBC1D5 (Probable). Required for retrograde transport of lysosomal enzyme receptor IGF2R (PubMed:15078902, PubMed:15078903). Required to regulate transcytosis of the polymeric immunoglobulin receptor (pIgR-pIgA) (PubMed:15247922). Required for the endosomal localization of WASHC2A (indicative for the WASH complex) (PubMed:22070227). Required for the endosomal localization of TBC1D5 (PubMed:20923837). Mediates retromer cargo recognition of SORL1 and is involved in trafficking of SORL1 implicated in sorting and processing of APP (PubMed:22279231). Involved in retromer-independent lysosomal sorting of F2R (PubMed:16407403). Involved in recycling of ADRB2 (PubMed:21602791). Enhances the affinity of SNX27 for PDZ-binding motifs in cargo proteins (By similarity). This gene belongs to a group of vacuolar protein sorting (VPS) genes. The encoded protein is a component of a large multimeric complex, termed the retromer complex, involved in retrograde transport of proteins from endosomes to the trans-Golgi network. The close structural similarity between the yeast and human proteins that make up this complex suggests a similarity in function. Expression studies in yeast and mammalian cells indicate that this protein interacts directly with VPS35, which serves as the core of the retromer complex. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• O75436
• A8MZ56
• B2RDD3
• Q8TBH4
• Q9H982

Gene Name

• VPS26A

Ensembl ID

• ENST00000263559
• ENSP00000263559
• ENSG00000122958
• ENST00000373382
• ENSP00000362480
• ENST00000395098
• ENSP00000378532

Symbol

• VPS26
• HB58
• PEP8A
• VPS26
• Hbeta58

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
interacting protein	0.97
kinase perturbation	0.96
histone modification site profile	0.89
disease perturbation	0.79
co-expressed gene	0.76

Protein Classes

PANTHER Classes

Protein / Membrane Traffic Protein / Vacuolar Protein Sorting-associated Protein 26a

DTO Classes

Protein / Transporter / Vacuolar Protein Sorting-associated Protein 26a

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: 60.13   (req: < 5)

Gene RIFs: 17   (req: <= 3)

Antibodies: 173   (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: 60.13   (req: >= 5)

Gene RIFs: 17   (req: > 3)

Antibodies: 173   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 6

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