Adipocyte protein hormone
Adiponectin
Adiponectin is a protein hormone produced by adipocytes. Its literature distinguishes full-length protein, the globular domain and specific receptor systems; these differences must be preserved when identifying experimental material.
This is a research reference, not a product offered in the Asciende catalog. Published studies do not establish the identity, purity or availability of a commercial preparation.
Ligand, receptor and formulation
Keep entity and method together: transferring a result between formulations requires evidence even when their names overlap.
- Is the experimental entity the hormone, a fragment, an analog or a complete formulation?
- Does the readout measure receptor binding, an intracellular signal or an outcome in another system?
- Are species, expressed receptor, comparator and readout time reported?
Mechanism described in the literature
In cellular models, expression and experimental reduction of AdipoR1 and AdipoR2 provided evidence on adiponectin responses involving AMPK, PPAR-alpha and substrate utilization. Results depend on the system and the protein form evaluated.
Other names in the literature
- Adiponectin
- Acrp30
A complete protein and one of its regions
The 2003 receptor study included globular and full-length adiponectin. These names are not interchangeable: one describes a region of the protein and the other the complete material. Identifying which was used avoids transferring findings without verification between structurally different preparations.
AdipoR classification is not just membrane topology
The cloning investigation described AdipoR1 and AdipoR2 as receptors organized differently from G protein-coupled receptors. The number of transmembrane regions alone does not determine a functional family. Classification requires structural information and experimental signaling evidence.
Distinguishing adiponectin from combinations
The 2001 work studied mouse models of obesity and lipoatrophy. In lipoatrophic mice, combined adiponectin and leptin produced an insulin-sensitivity response different from either protein alone. That finding belongs to the combination and the model; it should not be summarized as an adiponectin-only result.
Questions and answers
Are adiponectin and leptin the same adipocyte signal?
No. They are different proteins. The combination study included them as separate variables precisely to compare their contributions.
Does the globular fragment represent the whole protein?
No. It can be a useful experimental tool, but its name and results must be distinguished from those of full-length adiponectin.
Sources
- Cloning of adiponectin receptors that mediate antidiabetic metabolic effects. — Nature, 2003
- Cloning of adiponectin receptors that mediate antidiabetic metabolic effects.
- The fat-derived hormone adiponectin reverses insulin resistance associated with both lipoatrophy and obesity. — Nat Med, 2001
- The fat-derived hormone adiponectin reverses insulin resistance associated with both lipoatrophy and obesity.