Mouse Pref-1/DLK1/FA1 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
Detection of Mouse Pref‑1/DLK1/FA1 by Western Blot.
4 Images
Product Details
Citations (1)
Supplemental Products

Mouse Pref-1/DLK1/FA1 Antibody Summary

Species Reactivity
Detects mouse Pref-1 in direct ELISAs.
Recombinant Monoclonal Rabbit IgG Clone # 1168B
Protein A or G purified from cell culture supernatant
Mouse myeloma cell line NS0-derived recombinant mouse Pref-1/DLK1/FA1
Accession # Q09163
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.


Recommended Concentration
Western Blot
0.1 µg/mL
See below
Simple Western
1 µg/mL
See below
Flow Cytometry
0.25 µg/106 cells
See below
1-25 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

Western Blot Detection of Mouse Pref‑1/DLK1/FA1 antibody by Western Blot. View Larger

Detection of Mouse Pref‑1/DLK1/FA1 by Western Blot. Western blot shows lysates of 3T3-L1 mouse embryonic fibroblast adipose-like cell line and mouse embryo tissue. PVDF membrane was probed with 0.1 µg/mL of Rabbit Anti-Mouse Pref-1/DLK1/FA1 Monoclonal Antibody (Catalog # MAB8634) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Pref-1/DLK1/FA1 at approximately 45-50 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Flow Cytometry Detection of Pref-1/DLK1/FA1 antibody in 3T3-L1 Mouse Cell Line antibody by Flow Cytometry. View Larger

Detection of Pref‑1/DLK1/FA1 in 3T3‑L1 Mouse Cell Line by Flow Cytometry. 3T3-L1 mouse embryonic fibroblast adipose-like cell line was stained with Rabbit Anti-Mouse Pref-1/DLK1/FA1 Monoclonal Antibody (Catalog # MAB8634, filled histogram) or isotype control antibody (Catalog # AB-108-C, open histogram), followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111).

Immunohistochemistry Pref-1/DLK1/FA1 antibody in Mouse Embryonic Liver Tissue by Immunohistochemistry (IHC-Fr). View Larger

Pref‑1/DLK1/FA1 in Mouse Embryonic Liver Tissue. Pref-1/DLK1/FA1 was detected in immersion fixed frozen sections of mouse embryonic liver tissue (13 d.p.c.) using Rabbit Anti-Mouse Pref-1/DLK1/FA1 Monoclonal Antibody (Catalog # MAB8634) at 1 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Rabbit IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC003). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membrane. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Simple Western Detection of Mouse Pref-1/DLK1/FA1 antibody by Simple Western<sup>TM</sup>. View Larger

Detection of Mouse Pref‑1/DLK1/FA1 by Simple WesternTM. Simple Western lane view shows lysates of mouse embryo tissue, loaded at 0.2 mg/mL. A specific band was detected for Pref‑1/DLK1/FA1 at approximately 63 kDa (as indicated) using 1 μg/mL of Rabbit Anti-Mouse Pref‑1/DLK1/FA1 Monoclonal Antibody (Catalog # MAB8634). This experiment was conducted under reducing conditions and using the12-230 kDa separation system.

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.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
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 known as Protein delta homolog 1, DLK1, FA1 and Fetal antigen 1, is a 45-60 kDa transmembrane glycoprotein that is highly expressed in fetal liver, placenta, adult adrenal gland, brain, testis and ovary. Expression of Pref-1 is elevated in liver after birth but starts to decline around postnatal day 16. Mature mouse Pref-1 is a 362 amino acid (aa) type I transmembrane N- and O-linked glycoprotein.  It contains a 282 aa extracellular region (aa 24-305), a 24 aa transmembrane segment (aa 306-329), and a 56 aa cytoplasmic domain (aa 330-385).  It contains 6 EGF-like domains and is involved in embryonic skeletal system development. Pref-1 inhibits preadipocyte proliferation by regulating their entry into G1/S-phase and represses preadipocyte differentiation. It is a master regulator of preadipocyte homeostasis and adipose tissue expansion. Pref-1 manipulation may, therefore, be utilized in obesity treatments. Mouse Pref-1 shares 85% and 94% aa identity with human and rat Pref-1, respectively

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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Citation for Mouse 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.

1 Citation: Showing 1 - 1

  1. Tcf21 marks visceral adipose mesenchymal progenitors and functions as a rate-limiting factor during visceral adipose tissue development
    Authors: Q Liu, C Li, B Deng, P Gao, L Wang, Y Li, M Shiri, F Alkaifi, J Zhao, JM Stephens, CA Simintiras, J Francis, J Sun, X Fu
    Cell Reports, 2023-02-28;42(3):112166.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: ICC


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