The INS gene encodes for preproinsulin, which is enzymatically converted into insulin. Insulin is produced by the ß cells in the Islets of Langerhans. Preproinsulin is converted to proinsulin in the endoplasmic reticulum and proinsulin is then proteolytically processed to form insulin in newly-forming insulin secretory granules. Insulin production is tightly regulated by specific DNA elements present within ~400 bp in the proximal region of the INS promoter.
Synonyms: INS
Storage: -20C
Application: Anti-Insulin antibody, Mouse monoclonal has been used in immunohistochemistry.
Biochem Physiol Actions: Insulin is responsible for two types of actions- excitatory and inhibitory. In its excitatory role, it increases the uptake of glucose and lipid synthesis, and in its inhibitory role it inhibits glycogenolysis, gluconeogenesis, lipolysis, proteolysis and ketogenesis. Aberrant insulin secretion leads to various disorders such as diabetes, hyperglycemia or hypoglycemia. Mutant INS-gene Induced diabetes of youth (MIDY) syndrome is an autosomal dominant disorder caused by missense mutations, which lead to aberrant proinsulin folding. Impaired glucose tolerance (IGT) or non-insulin-dependent diabetes mellitus (NIDDM) is caused by resistance to insulin-stimulated glucose uptake.
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