Chemicals and Drugs [D] » Amino Acids, Peptides, and Proteins [D12] » Proteins » Intracellular Signaling Peptides and Proteins » Protein Serine-Threonine Kinases » Activin Receptors
Chemicals and Drugs [D] » Enzymes and Coenzymes [D08] » Enzymes » Transferases » Phosphotransferases » Phosphotransferases (Alcohol Group Acceptor) » Protein Kinases » Protein Serine-Threonine Kinases » Activin Receptors
Chemicals and Drugs [D] » Amino Acids, Peptides, and Proteins [D12] » Proteins » Membrane Proteins » Receptors, Cell Surface » Receptors, Peptide » Receptors, Growth Factor » Receptors, Transforming Growth Factor beta » Activin Receptors
Description
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. MeSH
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