|Detection of DLL3 in U‑118‑MG Human Cell Line by Flow Cytometry. U‑118‑MG human glioblastoma/astrocytoma cell line was stained with Goat Anti-Human DLL3 PE‑conjugated Polyclonal Antibody (Catalog # FAB4315P, filled histogram) or isotype control antibody (Catalog # IC108P, open histogram). View our protocol for Staining Membrane-associated Proteins.|
DLL3 (Delta-like protein 3; also Delta3) is a 65‑67 kDa member of the Delta family of proteins. It is expressed in/on select cell types in the embryo, including somitic mesoderm, cochlear hair cells and noncycling cells of the neural tube that are undergoing differentiation. DLL3 is principally found in the Golgi apparatus and endosomes where it promotes Notch family receptor degradation. Mature human DLL3 is a 592 amino acid (aa) type I transmembrane protein. It possesses a 466 aa extracellular domain (aa 27-492) that contains a Notch-binding DSL domain (aa 176-215) followed by six EGF-like repeats (aa 216-465). There is one isoform variant that contains an Ala substitution for aa 588-618. Over aa 27-488, human DLL3 shares 84% aa identity with mouse DLL3.
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