Reactivity | MuSpecies Glossary |
Applications | Binding Activity |
Format | Carrier-Free |
Details of Functionality | Measured by its binding ability in a functional ELISA. In a 100 µL reaction mixture containing rmCerberus 1 at 1 µg/mL and rhBMP-4 (Catalog # 314-BP) dilutions at 0.02‑3 µg/mL, the concentration of rhBMP-4 that produces 50% of the optimal binding response is found to be approximately 0.2-0.8 µg/mL. |
Source | E. coli-derived mouse Cerberus 1 protein Asp18-Pro272, with an N-terminal Met |
Accession # | |
N-terminal Sequence | Met |
Structure / Form | Disulfide-linked homodimer |
Protein/Peptide Type | Recombinant Proteins |
Gene | Cer1 |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Endotoxin Note | <0.10 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 28.7 kDa (monomer). Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
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SDS-PAGE | 34 kDa, reducing conditions |
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Publications |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Lyophilized from a 0.2 μm filtered solution in HCl. |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Reconstitution Instructions | Reconstitute at 100 μg/mL in sterile 4 mM HCI. |
Cerberus 1, also called DAND4, is a member of the DAN domain family of BMP antagonists that includes DAN (DAND1), Gremlin/Drm (DAND2), PRDC (Protein Related to Dan and Cerberus; DAND3), and COCO/Dante (DAND5). DAN family members contain a cysteine-knot domain that is homologous to that found in other TGF-beta superfamily ligands (1, 2). Mature mouse Cerberus 1 shares 40%, 29%, and 66% amino acid (aa) sequence identity with chick, Xenopus, and human Cerberus 1, respectively. Within the cysteine-knot domain, it shares 24% - 37% aa sequence identity with mouse DAN, Gremlin, PRDC, and COCO. Cerberus 1 is a secreted 38 kDa glycoprotein that forms disulfide-linked homodimers (3). Cerberus-S, which is generated by proteolysis in Xenopus, is a short version of the molecule and includes the C-terminal cysteine-knot domain (4). At the onset of gastrulation, Cerberus 1 is transiently expressed in anterior endodermal structures in response to Nodal and Shh (3, 5 - 9). Cerberus 1 binds BMP-4 and Nodal and inhibits their activities. Xenopus Cerberus has also been shown to bind Xenopus Wnt8. These inhibitory functions of Cerberus favor mesodermal development in the anterior region of the gastrula and suppresses posterior mesodermal differentiation (3, 4, 6, 8, 10 - 12). In chick and Xenopus, Cerberus 1 also regulates, but is not required for embryonic left-right polarization, neurulation, and head and heart induction (4 - 8, 13).
Publication using 1986-CB/CF | Applications | Species |
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Aguiar D, Sghari S, Creuzet S The facial neural crest controls fore- and midbrain patterning by regulating Foxg1 expression through Smad1 activity. Development, 2014-06-01;141(12):2494-505. 2014-06-01 [PMID: 24917504] (In Vivo, Chicken) | In Vivo | Chicken |
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