Protein Domain : IPR008346

Type:  Family Name:  Transient receptor potential cation channel subfamily V member 5
Description:  TRP (transient receptor potential) channels can be described as tetramers formed by subunits with six transmembrane domains and containing cation-selective pores, which in several cases show high calcium permeability. The molecular architecture of TRP channels is reminiscent of voltage-gated channels and comprises six putative transmembrane segments (S1-S6), intracellular N- and C-termini, and a pore-forming reentrant loop between S5 and S6 [].TRP channels represent a superfamily conserved from worms to humans that comprise seven subfamilies []: TRPC (canonical), TRPV (vanilloid), TRPM (melastatin or long TRPs), TRPA (ankyrin), whose only member is the transmembrane protein 1, TRPP(polycystin), TRPML (mucolipin) and TRPN (Nomp-C homologues), which has a single member that can be found in worms, flies, and zebrafish. TRPs are classified essentially according to their primary amino acid sequence rather than selectivity or ligand affinity, due to their heterogenous properties and complex regulation.TRP channels are involved in many physiological functions, ranging from pure sensory functions, such as pheromone signalling, taste transduction, nociception, and temperature sensation, over homeostatic functions, such as Ca2+ and Mg2+ reabsorption and osmoregulation, to many other motile functions, such as muscle contraction and vaso-motor control [].The TRPV (vanilloid) subfamily can be divided into two distinct groups. The first, which comprises TRPV1, TRPV2, TRPV3, and TRPV4, has members which can be activated by temperature as well as chemical stimuli. They are involved in a range of functions including nociception, thermosensing and osmolarity sensing. The second group, which consists of TRPV5 and TRPV6, (also known as epithelial calcium channels 1 and 2) are involved in renal Ca2+ absorption/reabsorption [].TRPV5 was first isolated from rat duodenum using an expression cloning system and, subsequently, from human small intestine []. Its functionalrole is similar to TRPV6, being involved in response to a reduction in calcium. However, as its tissue distribution differs, the consequences ofmalfunction are likely to be different. TRPV5 appears to form the Icrac ion channel, which has a pivotal role in maintenance and regulation of calcium.This means that it is implicated in processes as diverse as exocytosis, enzyme regulation, apoptosis and cell proliferation. More specifically,the classic descriptions of Icrac in T-cells predict that antagonists to this channel should be useful in treating inflammatory diseases and inimmunomodulation. It is also potentially involved in cell proliferation, and may be linked to human cancer []. Short Name:  TRPV5

0 Child Features

0 Contains

2 Cross Referencess

Identifier
PTHR10582:SF11
PR01767

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0005262 IPR008346
GO:0006816 IPR008346
GO:0016021 IPR008346

3 Ontology Annotations

GO Term Gene Name
GO:0005262 IPR008346
GO:0006816 IPR008346
GO:0016021 IPR008346

1 Parent Features

DB identifier Type Name
IPR008344 Family Transient receptor potential cation channel subfamily V member 5/6

0 Proteins

6 Publications

First Author Title Year Journal Volume Pages PubMed ID
            18535090
            20025796
            20861159
            19297520
            10428857
            11278579