Receptors for ACTIVINS are membrane protein kinases belonging to the family of PROTEIN-SERINE-THREONINE KINASES, thus also named activin receptor-like kinases (ALK's). Activin receptors also bind TRANSFORMING GROWTH FACTOR BETA. As those transmembrane receptors of the TGF-beta superfamily (RECEPTORS, TRANSFORMING GROWTH FACTOR BETA), ALK's consist of two different but related protein kinases, Type I and Type II. Activins initiate cellular signal transduction by first binding to the type II receptors (ACTIVIN RECEPTORS, TYPE II ) which then recruit and phosphorylate the type I receptors (ACTIVIN RECEPTORS, TYPE I ) with subsequent activation of the type I kinase activity.

Descriptor ID	D029404
MeSH Number(s)	D08.811.913.696.620.682.700.062 D12.776.543.750.750.400.820.500
Concept/Terms	Activin Receptors Activin Receptors Receptor, Activin Activin Receptor-Like Kinases Activin Receptor like Kinases Kinases, Activin Receptor-like Receptor-like Kinases, Activin Activin Receptor Activin Receptor-like Kinase Activin Receptor like Kinase Kinase, Activin Receptor-like Receptor-like Kinase, Activin

Below are MeSH descriptors whose meaning is more general than "Activin Receptors".

Below are MeSH descriptors whose meaning is related to "Activin Receptors".

Below are MeSH descriptors whose meaning is more specific than "Activin Receptors".