Human Pref-1/DLK1/FA1 Antibody

Catalog # Availability Size / Price Qty
MAB1144-SP
MAB1144-500
MAB1144-100
Detection of Pref‑1/DLK1/FA1 in HepG2 Human Cell Line by Flow Cytometry.
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Product Details
Citations (6)
FAQs
Supplemental Products
Reviews (3)

Human Pref-1/DLK1/FA1 Antibody Summary

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 either lyophilized or as a 0.2 µm filtered solution in PBS.

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.

Scientific Data

Flow Cytometry Detection of Pref‑1/DLK1/FA1 antibody in HepG2 Human Cell Line antibody by Flow Cytometry. View Larger

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 antibody in HepG2 Human Cell Line by Immunocytochemistry (ICC). View Larger

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.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
  • 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

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Citations for Human Pref-1/DLK1/FA1 Antibody

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.

6 Citations: Showing 1 - 6
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  1. Obesity induces preadipocyte CD36 expression promoting inflammation via the disruption of lysosomal calcium homeostasis and lysosome function
    Authors: X Luo, Y Li, P Yang, Y Chen, L Wei, T Yu, J Xia, XZ Ruan, L Zhao, Y Chen
    EBioMedicine, 2020-06-06;56(0):102797.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC
  2. Effects of Delta-Like Noncanonical Notch Ligand 1 Expression of Human Fetal Liver Hepatoblasts on Hematopoietic Progenitors
    Authors: JC Gerlach, RL Thompson, B Gridelli, E Schmelzer
    Stem Cells Int, 2019-03-18;2019(0):7916275.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC
  3. 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, 2013-11-18;12(1):155-64.
    Species: Human
    Sample Types: Cell Lysates
    Applications: ICC, Immunoprecipitation
  4. Hypoxia-regulated delta-like 1 homologue enhances cancer cell stemness and tumorigenicity.
    Authors: Kim Y, Lin Q, Zelterman D, Yun Z
    Cancer Res., 2009-12-15;69(24):9271-80.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC
  5. 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, 2006-07-27;147(11):5340-51.
    Species: Human
    Sample Types: Cell Lysates, Whole Cells
    Applications: ICC, Western Blot
  6. Reck enables cerebrovascular development by promoting canonical Wnt signaling
    Authors: Ulrich F, Carretero-Ortega J, MenEndez J et al.
    Development.

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Reviews for Human Pref-1/DLK1/FA1 Antibody

Average Rating: 4.7 (Based on 3 Reviews)

5 Star
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Human Pref-1/DLK1/FA1 Antibody
By Anonymous on 10/18/2021
Application: Immunocytochemistry/Immunofluorescence Sample Tested: SVF-cells Species: Human

Human Pref-1/DLK1/FA1 Antibody
By Anonymous on 10/13/2021
Application: IHC Sample Tested: Brain (substantia nigra) Species: Human

Human Pref-1/DLK1/FA1 Antibody
By Preethi Vijayaraj on 10/18/2016
Application: Immunocytochemistry/Immunofluorescence Sample Tested: mesenchymal cells Species: Human