Human LAP (TGF-beta 1) Antibody

Catalog # Availability Size / Price Qty
LAP  (TGF-beta 1) in HEK293 Human Cell Line.
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Product Details
Citations (5)
Supplemental Products

Human LAP (TGF-beta 1) Antibody Summary

Species Reactivity
Detects human LAP in direct ELISAs and Western blots.
Monoclonal Mouse IgG1 Clone # 27235
Protein A or G purified from ascites
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human LAP (TGF-beta 1)
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.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
3-25 µg/mL
See below
Measured by its ability to neutralize LAP TGF‑ beta 1 inhibition of TGF‑ beta 1 growth inhibition in the HT‑2 mouse T cell line. Tsang, M. et al. (1995) Cytokine 7:389. The Neutralization Dose (ND50) is typically 1-5 µg/mL in the presence of 500 ng/mL Recombinant Human LAP TGF‑ beta 1 and 1 ng/mL Recombinant Human TGF‑ beta 1.

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

Immunocytochemistry LAP  (TGF-beta 1) in HEK293 Human Cell Line. View Larger

LAP (TGF-beta 1) in HEK293 Human Cell Line. LAP (TGF-beta 1) was detected in immersion fixed HEK293 human embryonic kidney cell line using Mouse Anti-Human LAP (TGF-beta 1) Monoclonal Antibody (Catalog # MAB246) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 493-conjugated Anti-Mouse IgG Secondary Antibody (green; Catalog # NL009) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Neutralization LAP TGF‑ beta 1 Inhibition of TGF‑ beta 1 Activity and Neutralization by Human LAP TGF‑ beta 1 Antibody. View Larger

LAP TGF‑ beta 1 Inhibition of TGF‑ beta 1 Activity and Neutralization by Human LAP TGF‑ beta 1 Antibody. Recombinant Human LAP TGF‑ beta 1 (Catalog # 246-LP) inhibits Recombinant Human TGF‑ beta 1 (Catalog # 240-B) growth inhibition activity in the HT‑2 mouse T cell line in a dose-dependent manner (orange line). Inhibition of Recombinant Human TGF‑ beta 1 (1 ng/mL) activity elicited by Recombinant Human LAP TGF‑ beta 1 (500 ng/mL) is neutralized (green line) by increasing concentrations of Human LAP TGF‑ beta 1 Monoclonal Antibody (Catalog # MAB246). The ND50 is typically 1-5 µg/mL.

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.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
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: LAP (TGF-beta 1)

The TGF-beta family includes several related proteins (70-80% sequence homology) from mammalian, avian, or Xenopus systems that are now designated TGF-beta 1, TGF‑ beta 2, TGF-beta 1.2, TGF-beta 3, TGF-beta 4, and TGF-beta 5. These proteins are secreted by cells in the form of an inactive complex, referred to as latent TGF-beta, that consists of TGF-beta associated non-covalently with a Latency-associated peptide (LAP). These two proteins are synthesized as a single pro-peptide that is cleaved in a post Golgi compartment prior to secretion. Different TGF-beta family members are naturally associated with their own distinct LAPs.

Long Name
Latency-associated Peptide
Entrez Gene IDs
7040 (Human)
Alternate Names
CED; DPD1; LAP (TGFbeta 1); LAP (TGF-beta 1); LAP; TGFB; TGFB1; TGFbeta; transforming growth factor beta 1

Product Datasheets

Citations for Human LAP (TGF-beta 1) 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.

5 Citations: Showing 1 - 5
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  1. Reduced CD160 expression contributes to impaired NK cell function and poor clinical outcomes in patients with HCC
    Authors: H Sun, J Xu, Q Huang, M Huang, K Li, K Qu, H Wen, R Lin, M Zheng, H Wei, W Xiao, R Sun, Z Tian, C Sun
    Cancer Res., 2018;0(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neut
  2. Assessment of Wound-Healing Properties of Medicinal Plants: The Case of Phyllanthus muellerianus
    Authors: YD Boakye, C Agyare, GP Ayande, N Titiloye, EA Asiamah, KO Danquah
    Front Pharmacol, 2018;9(0):945.
    Species: Rat
    Sample Types: Whole Tissue
    Applications: IHC
  3. Induction of latency-associated peptide (transforming growth factor-beta(1)) expression on CD4+ T cells reduces Toll-like receptor 4 ligand-induced tumour necrosis factor-alpha production in a transforming growth factor-beta-dependent manner.
    Authors: Boswell S, Sharif S, Alisa A, Pereira SP, Williams R, Behboudi S
    Immunology, 2011;133(3):278-87.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neut
  4. Cord blood CD4(+)CD25(+)-derived T regulatory cell lines express FoxP3 protein and manifest potent suppressor function.
    Authors: Godfrey WR, Spoden DJ, Ge YG, Baker SR, Liu B, Levine BL, June CH, Blazar BR, Porter SB
    Blood, 2005;105(2):750-8.
    Species: Human
    Sample Types: Cell Culture Supernates
    Applications: Neut
  5. Suppressive properties of human CD4+CD25+ regulatory T cells are dependent on CTLA-4 expression.
    Authors: Birebent B, Lorho R, Lechartier H, de Guibert S, Alizadeh M, Vu N, Beauplet A, Robillard N, Semana G
    Eur. J. Immunol., 2004;34(12):3485-96.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow


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