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The insulin receptor (IR) is a transmembrane receptor that is activated by insulin, IGF-I, IGF-II and belongs to the large class of receptor tyrosine kinase. [5] Metabolically, the insulin receptor plays a key role in the regulation of glucose homeostasis; a functional process that under degenerate conditions may result in a range of clinical manifestations including diabetes and cancer.
T cells need three signals to become fully activated. Signal 1 is provided by the T-cell receptor when recognising a specific antigen on a MHC molecule. Signal 2 comes from co-stimulatory receptors on T cell such as CD28, triggered via ligands presented on the surface of other immune cells such as CD80 and CD86. These co-stimulatory receptors ...
For example, in adipocytes and muscle cells, IRAP is a major component of Glut4storage vesicles (GSV) and regulates GSV trafficking in response to insulin receptor signaling. Alteration of IRAP recruitment at the cell surface, as observed in type 2 diabetes , impairs glucose uptake by blocking the glucose transporter type 4 (Glut4) trafficking ...
T cells are grouped into a series of subsets based on their function. CD4 and CD8 T cells are selected in the thymus, but undergo further differentiation in the periphery to specialized cells which have different functions. T cell subsets were initially defined by function, but also have associated gene or protein expression patterns.
When insulin binds to the insulin receptor, it leads to a cascade of cellular processes that promote the usage or, in some cases, the storage of glucose in the cell. The effects of insulin vary depending on the tissue involved, e.g., insulin is most important in the uptake of glucose by muscle and adipose tissue. [2]
3667 16367 Ensembl ENSG00000169047 ENSMUSG00000055980 UniProt P35568 P35569 RefSeq (mRNA) NM_005544 NM_010570 RefSeq (protein) NP_005535 NP_034700 Location (UCSC) Chr 2: 226.73 – 226.8 Mb Chr 1: 82.21 – 82.27 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Insulin receptor substrate 1 (IRS-1) is a signaling adapter protein that in humans is encoded by the IRS1 gene. It is a 180 ...
Insulin is stored in beta cells in the pancreas. When glucose in the blood binds to glucose receptors on the beta cell membrane, a signal cascade is initiated inside the cell that results in insulin stored in vesicles in these cells being released into the blood stream. [27] Increased insulin levels cause the uptake of glucose into the cells.
The glucagon-like peptide-1 receptor (GLP1R) is a G protein-coupled receptor (GPCR) found on beta cells of the pancreas and on neurons of the brain. It is involved in the control of blood sugar level by enhancing insulin secretion. In humans it is synthesised by the gene GLP1R, which is present on chromosome 6.