Protein Domain : Teneurin intracellular, N-terminal IPR009471

Type	Domain
Description	Teneurins are a family of phylogenetically conserved transmembrane glycoproteins expressed during pattern formation and morphogenesis [ ]. Originally discovered as ten-m and ten-a in Drosophila melanogaster, the teneurin family is conserved from Caenorhabditis elegans (ten-1) to vertebrates, in which four paralogs exist (teneurin-1 to -4 or odz-1 to -4). Their distinct domain architecture is highly conserved between invertebrate and vertebrate teneurins, particularly in the extracellular part. The intracellular domains of Ten-a, Ten-m/Odz and C. elegans Ten-1 are significantly different, both in size and structure, from the comparable domains of vertebrate teneurins, but the extracellular domains of all of these proteins are remarkably similar.The large C-terminal extracellular domain consists of eight EGF-like repeats (see ), a region of conserved cysteines and unique YD-repeats. The N-terminal intracellular domain of vertebrate teneurins contains two EF-hand-like calcium-binding motifs and two polyproline regions involved in protein-protein interactions, followed by a single-span transmembrane domain. The intracellular domain is linked to the cytoskeleton through its interaction with the adaptor protein CAP/ponsin and can be cleaved near (or possibly in) the transmembrane domain and transported to the nucleus [ , ], giving teneurins the potential to act as transcription factors , ]. There is considerable divergence between intracellular domains of invertebrate and vertebrate teneurins as well as between different invertebrate proteins [, , , , ].This domain is found in the intracellular N-terminal region of the Teneurin family.
Short Name	Ten_N