Developmental Signals - TGF-beta
Introduction
Transforming Growth Factor-beta (TGF-β)
Factor Links: AMH | hCG | BMP | sonic hedgehog | bHLH | HOX | FGF | FOX | Hippo | LIM | Nanog | NGF | Nodal | Notch | PAX | retinoic acid | SIX | Slit2/Robo1 | SOX | TBX | TGF-beta | VEGF | WNT | Category:Molecular |
Some Recent Findings
Structure
The TGF precursor protein has three distinct regions:
- signal peptide - targets it to the endoplasmic reticulum and secretion
- propeptide - or the latency associated peptide
- mature peptide - cleaved from the precursor protein and is actively involved in signalling
- cleaved by Furin - a convertase
- cleaved at a dibasic arginine-X-X-arginine (RXXR) site
Function
Signaling Pathway
mature peptide
- active peptide forms a hetero- or homodimer
- binds to a specific TGF-β Type II receptor
- Type II receptor then recruits a TGF-β Type I receptor
- phosphorylates it via its serine/threonine kinase domain
- phosphorylated Type I receptors then phosphorylate receptor-associated Smad proteins (R-Smads), including Smad1/5 and Smad2/3
(data from Expasy)
OMIM
About OMIM "Online Mendelian Inheritance in Man OMIM is a comprehensive, authoritative, and timely compendium of human genes and genetic phenotypes. The full-text, referenced overviews in OMIM contain information on all known mendelian disorders and over 12,000 genes. OMIM focuses on the relationship between phenotype and genotype. It is updated daily, and the entries contain copious links to other genetics resources." OMIM
References
Reviews
Articles
<pubmed>17077151</pubmed>
Search PubMed: TGF-beta
External Links
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Cite this page: Hill, M.A. (2024, June 5) Embryology Developmental Signals - TGF-beta. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Developmental_Signals_-_TGF-beta
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G