Tbio CLDN16 Claudin-16

Protein Summary

Description

Plays a major role in tight junction-specific obliteration of the intercellular space, through calcium-independent cell-adhesion activity. Involved in paracellular magnesium reabsorption. Required for a selective paracellular conductance. May form, alone or in partnership with other constituents, an intercellular pore permitting paracellular passage of magnesium and calcium ions down their electrochemical gradients. Alternatively, it could be a sensor of magnesium concentration that could alter paracellular permeability mediated by other factors. Tight junctions represent one mode of cell-to-cell adhesion in epithelial or endothelial cell sheets, forming continuous seals around cells and serving as a physical barrier to prevent solutes and water from passing freely through the paracellular space. These junctions are comprised of sets of continuous networking strands in the outwardly facing cytoplasmic leaflet, with complementary grooves in the inwardly facing extracytoplasmic leaflet. The protein encoded by this gene, a member of the claudin family, is an integral membrane protein and a component of tight junction strands. It is found primarily in the kidneys, specifically in the thick ascending limb of Henle, where it acts as either an intercellular pore or ion concentration sensor to regulate the paracellular resorption of magnesium ions. Defects in this gene are a cause of primary hypomagnesemia, which is characterized by massive renal magnesium wasting with hypomagnesemia and hypercalciuria, resulting in nephrocalcinosis and renal failure. This gene and the CLDN1 gene are clustered on chromosome 3q28. [provided by RefSeq, Jun 2010]

Uniprot Accession IDs

• Q9Y5I7

Gene Name

• CLDN16

Ensembl ID

• ENST00000264734
• ENSP00000264734
• ENSG00000113946

Symbol

• PCLN1
• HOMG3
• PCLN1

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
gene perturbation	0.77
microRNA	0.67
protein domain	0.58
cell type or tissue	0.54
molecular function	0.53

Protein Classes

PANTHER Classes

Protein / Cell Junction Protein / Tight Junction / Claudin-16

DTO Classes

Protein / Cell-cell Junction / Tight Junction / Claudin-16

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: 124.92   (req: < 5)

Gene RIFs: 31   (req: <= 3)

Antibodies: 179   (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: 124.92   (req: >= 5)

Gene RIFs: 31   (req: > 3)

Antibodies: 179   (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