Recombinant Rat DLL1 Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
3970-DL-050
R&D Systems Recombinant Proteins and Enzymes
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Recombinant Rat DLL1 Fc Chimera Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its binding ability in a functional ELISA. When rrNotch-1 (Catalog # 1057-TK) is coated at 5 μg/mL, rrDLL-1 binds with an apparent KD <5 nM.
Source
Chinese Hamster Ovary cell line, CHO-derived rat DLL1 protein
Rat DLL-1
(Ser22 - Ser534)
Accession # P97677
IEGRMDP Mouse IgG2A
(Glu98 - Lys330)
N-terminus C-terminus
Accession #
N-terminal Sequence
Analysis
Ser22
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
82.6 kDa (monomer)
SDS-PAGE
90-95 kDa, reducing conditions

Product Datasheets

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3970-DL

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

3970-DL

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 200 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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Background: DLL1

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 rat DLL1 consists of a 520 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, rat DLL1 shares 90% and 95% aa sequence identity with human and mouse DLL1, respectively. It shares 26%, 36%, and 53% aa sequence identity with rat DLL2, 3, and 4, respectively. The ADAM9, 12, or 17‑ mediated proteolysis of DLL1 releases a 60 kDa ECD fragment and regulates the Notch-dependent proliferation of hematopoietic and myogenic progenitor cells (2 ‑ 4). The residual membrane-bound portion of DLL1 can be cleaved by presenilin-dependent gamma -secretase, enabling the cytoplasmic domain to migrate to the nucleus (5). DLL1 localizes to adherens junctions on neuronal processes through its association with the scaffolding protein MAGI1 (6). 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 (4, 7 ‑ 13). The up‑regulation of DLL1 in arterial endothelial cells following injury or angiogenic stimulation is central to postnatal arteriogenesis (14). DLL1 is also overexpressed in cervical carcinoma and glioma and contributes to tumor progression (15 ‑ 16).

References
  1. Bettenhausen, B. et al. (1995) Development 121:2407.
  2. Dyczynska, E. et al. (2007) J. Biol. Chem. 282:436.
  3. Karanu, F.N. et al. (2001) Blood 97:1960.
  4. Sun, D. et al. (2008) J. Cell Sci. 121:3815.
  5. Ikeuchi, T. and S.S. Sisodia (2003) J. Biol. Chem. 278:7751.
  6. Mizuhara, E. et al. (2005) J. Biol. Chem. 280:26499.
  7. Takahashi, Y. et al. (2003) Development 130:4259.
  8. Teppner, I. et al. (2007) BMC Dev. Biol. 7:68.
  9. Kiernan, A.E. et al. (2005) Development 132:4353.
  10. Schmitt, T.M. and J.C. Zuniga-Pflucker (2002) Immunity 17:749.
  11. Hozumi, K. et al. (2004) Nat. Immunol. 5:638.
  12. Shimojo, H. et al. (2008) Neuron 58:52.
  13. Schuster-Gossler, K. et al. (2007) Proc. Natl. Acad. Sci. 104:537.
  14. Limbourg, A. et al. (2007) Circ. Res. 100:363.
  15. Purow, B.W. et al. (2005) Cancer Res. 65:2353.
  16. Gray, G.E. et al. (1999) Am. J. Pathol. 154:785.
Long Name
Delta-like 1
Entrez Gene IDs
28514 (Human); 13388 (Mouse); 84010 (Rat)
Alternate Names
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

Citation for Recombinant Rat DLL1 Fc Chimera Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Delta/Notch-Like EGF-Related Receptor (DNER) Is Not a Notch Ligand
    PLoS ONE, 2016-09-13;11(9):e0161157.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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Recombinant Rat DLL1 Fc Chimera Protein, CF
By Anonymous on 08/25/2021
Application: In vitro bioactivity in cell culture

fibroblast derived ipsc lines were grown for 48 hr on gelatine-coated plates which contain 100 ng/ml rDLL1. mRNA level of Hes1 was detected to check if DLL1 stimulated Hes1 expression.