Recombinant Mouse DLL1 Fc Chimera Protein, CF Summary
Details of Functionality
Measured by the ability of the immobilized protein to enhance BMP-2 induced alkaline phosphatase activity in C3H10T1/2 mouse embryonic fibroblast cells. Nobta, M. <EM>et al</EM>. (2005) J. Biol. Chem. <STRONG>280</STRONG>:15842.<br />The ED<sub>50</sub> for this effect is 0.25-1 μg/mL. <br /><br />
<0.100 EU per 1 µg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
81.4 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.
SDS-PAGE
94 kDa, reducing conditions
Publications
Read Publications using 5026-DL in the following applications:
Store the unopened product at -20 to -70 °C. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Do not use past expiration date.
Buffer
Lyophilized from a 0.2 μm filtered solution in HEPES and EDTA.
Reconstitution Instructions
Reconstitute at 500 μg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Mouse DLL1 Fc Chimera Protein, CF
delta (Drosophila)-like 1
Delta 1
Delta
Delta1
delta-like 1 (Drosophila)
delta-like protein 1
DL1
DLL1
Drosophila Delta homolog 1
H-Delta-1
Background
Delta-like protein 1 (DLL1) is a 90-100 kDa type I transmembrane protein in the Delta/Serrate/Lag-2 (DSL) family of Notch ligands. Mature mouse DLL1 consists of a 528 amino acid (aa) extracellular domain (ECD) with one DSL domain and eight EGF-like repeats, a 23 aa transmembrane segment, and a 154 aa cytoplasmic domain (1). Within the ECD, mouse DLL1 shares 91% and 95% aa sequence identity with human and rat DLL1, respectively. It shares 26%, 35%, and 51% aa sequence identity with DLL2, 3, and 4, respectively. A 60 kDa ECD fragment, released by ADAM9, 12, or 17 mediated proteolysis, promotes the proliferation of hematopoietic progenitor cells (2, 3). The residual membrane-bound portion of DLL1 can be cleaved by presenilin-dependent gamma -secretase, enabling the cytoplasmic domain to migrate to the nucleus (4). DLL1 localizes to adherens junctions on neuronal processes through its association with the scaffolding protein MAGI1 (5). DLL1 is widely expressed, and it plays an important role in embryonic somite formation, cochlear hair cell differentiation, lymphocyte differentiation, and the maintenance of neural and myogenic progenitor cells (6-12). The up-regulation of DLL1 in arterial endothelial cells following injury or angiogenic stimulation is central to postnatal arteriogenesis (13). DLL1 is also over-expressed in cervical carcinoma and glioma and contributes to tumor progression (14, 15).
Bettenhausen, B. et al. (1995) Development 121:2407.
Dyczynska, E. et al. (2007) J. Biol. Chem. 282:436.
Karanu, F.N. et al. (2001) Blood 97:1960.
Ikeuchi, T. and S.S. Sisodia (2003) J. Biol. Chem. 278:7751.
Mizuhara, E. et al. (2005) J. Biol. Chem. 280:26499.
Takahashi, Y. et al. (2003) Development 130:4259.
Teppner, I. et al. (2007) BMC Dev. Biol. 7:68.
Kiernan, A.E. et al. (2005) Development 132:4353.
Schmitt, T.M. and J.C. Zuniga-Pflucker (2002) Immunity 17:749.
Hozumi, K. et al. (2004) Nat. Immunol. 5:638.
Shimojo, H. et al. (2008) Neuron 58:52.
Schuster-Gossler, K. et al. (2007) Proc. Natl. Acad. Sci. 104:537.
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