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Noggin binds to and antagonizes bone morphogenetic protein (BMP) ligands of the transforming growth factor beta (TGF-β) family. Noggin supports maintenance of undifferentiated human embryonic stem cells cultured in mouse embryonic fibroblast (MEF)-conditioned medium (Chaturvedi et al.), and promotes dopaminergic differentiation of embryonic stem cells and subsequent survival of dopamine neurons (Chiba et al.). Noggin is essential for development of ectodermal structures including neural tube, tooth, hair follicle, and eye, as well as patterning of mesodermal somites and skeletal structures. It also influences chondrogenesis, osteogenesis, and joint formation (Krause et al.). This product is animal component-free (ACF).
Subtype
Cytokines
Alternative Names
NOG, SYM1, SYNS1
Cell Type
Neural Stem and Progenitor Cells, Neurons, Pluripotent Stem Cells
Figure 1. Biological Activity and Molecular Mass of Mouse/Rat Recombinant Noggin, ACF
(A) The biological activity of Mouse/Rat Recombinant Noggin, ACF was tested by its ability to inhibit BMP-2 activity in HEK293T cells using a luciferase reporter assay. Firefly luciferase activity was normalized to the control Renilla luciferase activity. The EC50 is defined as the effective concentration of the growth factor at which inhibition of BMP-2 activity is at 50% of maximum. The EC50 in the above example is 2.1 nM.
(B) 3 μg of Mouse/Rat Recombinant Noggin, ACF was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and visualized by Coomassie Blue staining. Mouse/Rat Recombinant Noggin, ACF has a predicted molecular mass of 46 kDa (dimer). Noggin has an unusual migration pattern under non-reducing conditions due to the non-covalent dimer which is the active protein.