
- Species ReactivityMouse, Rat
- SpecificityDetects mouse and rat DLL1 in direct ELISAs and Western blots. In direct ELISAs, approximately 40% cross-reactivity with recombinant human (rh) DLL1 and less than 1% cross-reactivity with rhDLL3, rhDLL4, and recombinant mouse DLL4 is observed.
- SourcePolyclonal Sheep IgG
- PurificationAntigen Affinity-purified
- ImmunogenMouse myeloma cell line NS0-derived recombinant mouse DLL1
Ser22-Gln516
Accession # Q61483 - FormulationLyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
- LabelUnconjugated
- Western Blot0.1 µg/mL
- Immunohistochemistry5-15 µg/mLSee below
- ReconstitutionReconstitute at 0.2 mg/mL in sterile PBS.
- ShippingThe product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
- Stability & StorageUse 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.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
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- 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
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-dependentgamma -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 upregulation of DLL1 in arterial endothelial cells following injury or angiogenic stimulation is central to postnatal arteriogenesis (13). DLL1 is also overexpressed in cervical carcinoma and glioma and contributes to tumor progression (14‑15).
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