SH3TC2
Encyclopedia
SH3 domain and tetratricopeptide repeats-containing protein 2 is a protein
that in humans is encoded by the SH3TC2 gene
. It is expressed in in the Schwann cell
s that wrap the myelin
sheath around nerves.
) domains and 10 tetratricopeptide repeat (TPR
) motifs, and is a member of a small gene family. The gene product has been proposed to be an adapter or docking molecule.
The mouse version (orthologue) of SH3TC2 is expressed in Schwann cells, and localizes to the plasma membrane and to the perinuclear endocytic recycling compartment, consistent with a role in myelination or in axon
– glial cell
interactions. Mice lacking Sh3tc2 have an abnormal organization of the node of Ranvier.
Protein
Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of...
that in humans is encoded by the SH3TC2 gene
Gene
A gene is a molecular unit of heredity of a living organism. It is a name given to some stretches of DNA and RNA that code for a type of protein or for an RNA chain that has a function in the organism. Living beings depend on genes, as they specify all proteins and functional RNA chains...
. It is expressed in in the Schwann cell
Schwann cell
Schwann cells or neurolemmocytes are the principal glia of the peripheral nervous system . Glial cells function to support neurons and in the PNS, also include satellite cells, olfactory ensheathing cells, enteric glia and glia that reside at sensory nerve endings, such as the Pacinian corpuscle...
s that wrap the myelin
Myelin
Myelin is a dielectric material that forms a layer, the myelin sheath, usually around only the axon of a neuron. It is essential for the proper functioning of the nervous system. Myelin is an outgrowth of a type of glial cell. The production of the myelin sheath is called myelination...
sheath around nerves.
Function
This gene encodes a protein with two N-terminal Src homology 3 (SH3SH3 domain
The SRC Homology 3 Domain is a small protein domain of about 60 amino acids residues first identified as a conserved sequence in the viral adaptor protein v-Crk and the non-catalytic parts of enzymes such as phospholipase and several cytoplasmic tyrosine kinases such as Abl and Src...
) domains and 10 tetratricopeptide repeat (TPR
Tetratricopeptide
The tetratricopeptide repeat is a structural motif. It consists in a degenerate 34 amino acid sequence motif identified in a wide variety of proteins. It is found in tandem arrays of 3–16 motifs, which form scaffolds to mediate protein–protein interactions and often the assembly of multiprotein...
) motifs, and is a member of a small gene family. The gene product has been proposed to be an adapter or docking molecule.
The mouse version (orthologue) of SH3TC2 is expressed in Schwann cells, and localizes to the plasma membrane and to the perinuclear endocytic recycling compartment, consistent with a role in myelination or in axon
Axon
An axon is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma....
– glial cell
Glial cell
Glial cells, sometimes called neuroglia or simply glia , are non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons in the brain, and for neurons in other parts of the nervous system such as in the autonomous nervous system...
interactions. Mice lacking Sh3tc2 have an abnormal organization of the node of Ranvier.