Human Pref-1/DLK1/FA1 Antibody

  (3 citations)
(1 Review)
    
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Product Details
Citations (3)
FAQs
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  • Species Reactivity
    Human
  • Specificity
    Detects human Pref‑1/DLK‑1/FA1 in direct ELISAs and Western blots. Shows approximately 50% cross-reactivity with recombinant mouse Pref‑1.
  • Source
    Monoclonal Mouse IgG2B Clone # 211309
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human Pref-1 long isoform
    Ala24-Pro297 (with Arg248Pro and Lys295Ser substitutions)
    Accession # P80370
  • Formulation
    Lyophilized 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.
  • Label
    Unconjugated
Product Datasheets

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Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    Recombinant Human Pref‑1/DLK‑1/FA1 under non-reducing conditions only
  • Flow Cytometry
    2.5 µg/106 cells
    See below
  • CyTOF-ready
    Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
  • Immunocytochemistry
    8-25 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Pref‑1/DLK1/FA1 in HepG2 Human Cell Line by Flow Cytometry. HepG2 human hepatocellular carcinoma cell line was stained with Mouse Anti-Human Pref‑1/DLK1/FA1 Monoclonal Antibody (Catalog # MAB1144, filled histogram) or isotype control antibody (Catalog # MAB0041, open histogram), followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B).
Immunocytochemistry

Pref‑1/DLK1/FA1 in HepG2 Human Cell Line. Pref‑1/DLK1/FA1 was detected in immersion fixed HepG2 human hepatocellular carcinoma cell line using Mouse Anti-Human Pref‑1/DLK1/FA1 Monoclonal Antibody (Catalog # MAB1144) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cell membranes. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
    Reconstitution Buffer Available
  • Shipping
    The 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 & 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.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Pref-1/DLK1/FA1
Pref-1 (Preadipocyte factor 1; also DLK-1 and FA1) is a 58-65 kDa member of the Notch/Serrata/Delta family of proteins.  It is expressed in prechondrocytes and preadipocytes and appears to block progenitor cell differentiation into mature cell lineages.  Mature human Pref-1 is a 360 amino acid (aa) type I transmembrane N- and O-linked glycoprotein.  It contains a 280 aa extracellular region (aa 24-303), a 24 aa transmembrane segment (aa 304-327), and a 56 aa cytoplasmic domain (aa 328-383).  The extracellular region contains six EGF-like domains, and undergoes proteolytic cleavage to generate a bioactive 50 kDa fragment, plus three 25‑31 kDa fragments that show no activity.  There are multiple potential splice variants.  One shows a deletion of aa 229-301, a second possesses a six aa substitution for aa 1‑52, a third shows a deletion of aa 210-277, while a fourth contains a six aa substitution for aa 207-383.  Over aa 24-297, human Pref-1 shares 82% aa identity with mouse Pref-1.
  • Long Name:
    Preadipocyte Factor-1/Protein delta Homolog 1/Fetal Antigen 1
  • Entrez Gene IDs:
    8788 (Human); 13386 (Mouse)
  • Alternate Names:
    delta-like 1 homolog (Drosophila); DLK; DLK1; DLK-1; FA1; FA1fetal antigen 1; pG2; pG2delta-like homolog (Drosophila); preadipocyte factor 1; Pref1; Pref-1; protein delta homolog 1; secredeltin; ZOG
Related Research Areas
Citations:

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.

3 Citations: Showing 1 - 3
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Applications
Sample Type
  1. Interaction of delta-like 1 homolog (Drosophila) with prohibitins and its impact on tumor cell clonogenicity.
    Authors: Begum A, Lin Q, Yu C, Kim Y, Yun Z
    Mol Cancer Res, 2014;12(1):155-64.
    Species: Human
    Sample Type: Cell Lysates
    Application: ICC Fresh
  2. Hypoxia-regulated delta-like 1 homologue enhances cancer cell stemness and tumorigenicity.
    Authors: Kim Y, Lin Q, Zelterman D, Yun Z
    Cancer Res., 2009;69(24):9271-80.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
  3. Preadipocytes mediate lipopolysaccharide-induced inflammation and insulin resistance in primary cultures of newly differentiated human adipocytes.
    Authors: Chung S, Lapoint K, Martinez K, Kennedy A, Boysen Sandberg M, McIntosh MK
    Endocrinology, 2006;147(11):5340-51.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB

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Average Rating: 4 (Based on 1 review)

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We have 1 review tested in 1 species: Human.
We have 1 review tested in 1 application: Immunocytochemistry/Immunofluorescence.

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Images Ratings Applications Species Reviewed By Date Details
Immunocytochemistry/Immunofluorescence Human Pref-1/DLK1/FA1 Antibody MAB1144 Array MAB1144
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Very Good
 ICC/IF Human Anonymous 10/18/2016
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Image Details
Immunocytochemistry/Immunofluorescence Human Pref-1/DLK1/FA1 Antibody MAB1144
Immunocytochemistry/Immunofluorescence: Human Pref-1/DLK1/FA1 Antibody [MAB1144].

Summary

Application Immunocytochemistry/Immunofluorescence
Sample Tested mesenchymal cells
Species Human

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