Previous symbols: IDDM2, IDDM1.
Insulin is a 51-amino acid peptide hormone composed of two polypeptide chains (A-chain and B-chain) linked by disulfide bonds. It is synthesized as preproinsulin in pancreatic beta cells, processed through the secretory pathway to generate mature insulin, and secreted into the extracellular space in response to elevated blood glucose. The primary core function of insulin is regulation of glucose homeostasis through binding to the insulin receptor, triggering intracellular signaling cascades (primarily PI3K/AKT and MAPK pathways) that stimulate glucose uptake in muscle and adipose tissue, suppress hepatic glucose production, promote glycogen synthesis, stimulate lipogenesis, and inhibit lipolysis and protein degradation. Beyond its metabolic roles, insulin has important functions in cell growth, proliferation, and neuroprotection.
Relationship is the entry's genetic[].relationship_type. untyped means the entry has a genetic record for the gene but does not type it; its free-text association is shown instead.
| Disorder | Relationship | Where the gene appears |
|---|---|---|
| Diabetes mellitus | causative |
mechanism: Monogenic Beta-Cell Dysfunction
subtype: PNDM4; maturity-onset diabetes of the young type 10
scoped to subtype: PNDM4, maturity-onset diabetes of the young type 10, type 1 diabetes mellitus
|
| Type I Diabetes | susceptibility germline |
mechanism: Genetic Susceptibility
|
| Polycystic Ovary Syndrome |
untyped
Risk Factor
|
mechanism: Population-Specific Metabolic vs. Inflammatory Dysregulation
|
An entry matches when ClinGen's MONDO disease is the entry's own disease term, a subtype term, or an exact-match mapping. An amber status marks an entry ClinGen supports the gene for (Definitive, Strong or Moderate) whose own record does not type it. A Limited, Disputed or Refuted tier on such an entry is not a gap.
| ClinGen disease | MOI | Classification | dismech entry |
|---|---|---|---|
| monogenic diabetes MONDO:0015967 | AD | Definitive 2020-05-13 |
Diabetes mellitus
causative
|
| monogenic diabetes MONDO:0015967 | AR | Definitive 2020-05-13 |
Diabetes mellitus
causative
|
Identity from HGNC (snapshot 2026-10-01). Page layers are described in the gene pages documentation.