Human LAP (TGF-beta 1) Antibody

(12 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human LAP TGF‑ beta 1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody is specific for the LAP derived from the TGF-beta 1 precursor, but does not react with LAP from the TGF-beta 2 precursor.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived and Chinese hamster ovary cell line CHO-derived recombinant human LAP TGF‑ beta 1
    Leu30-Ser390
    Accession # P01137
  • 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.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    2 µg/mL
    See below
  • Simple Western
    20 µg/mL
    See below
  • Immunocytochemistry
    5-15 µg/mL
    Immersion fixed human peripheral blood mononuclear cells
  • Neutralization
    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 0.4-2 µg/mL in the presence of 500 ng/mL Recombinant Human LAP TGF‑ beta 1 and 1 ng/mL 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
Detection of Human LAP (TGF-beta 1) by Western Blot. Western blot shows lysates of Saos‑2 human osteosarcoma cell line. PVDF membrane was probed with 2 µg/mL of Goat Anti-Human LAP (TGF-beta 1) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-246-NA) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for LAP (TGF-beta 1) at approximately 48 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human LAP (TGF-beta 1) by Simple WesternTM. Simple Western lane view shows lysates of K562 human chronic myelogenous leukemia cell line and A549 human lung carcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for LAP (TGF-beta 1) at approximately 61 kDa (as indicated) using 20 µg/mL of Goat Anti-Human LAP (TGF-beta 1) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-246-NA) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the
12-230 kDa separation system.
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 Goat Anti-Human LAP TGF‑ beta 1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-246-NA). The ND50 is typically 0.4‑2 µg/mL.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • 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: LAP (TGF-beta 1)

TGF-beta 1 (transforming growth factor beta 1) and the closely related TGF-beta 2 and -beta 3 are members of the large TGF-beta  superfamily. TGF‑ beta proteins are highly pleiotropic cytokines that regulate processes such as immune function, proliferation and epithelial-mesenchymal transition (1‑3). Human TGF-beta 1 cDNA encodes a 390 amino acid (aa) precursor that contains a 29 aa signal peptide and a 361 aa proprotein (4). A furin-like convertase processes the proprotein within the trans-Golgi to generate an N‑terminal 249 aa (aa 30-278) latency-associated peptide (LAP) and a C-terminal 112 aa mature TGF-beta 1 (aa 279-390) (4‑6). Disulfide-linked homodimers of LAP and TGF-beta 1 remain non‑covalently associated after secretion, forming the small latent TGF-beta 1 complex (4‑8). Purified LAP is also capable of associating with active TGF-beta with high affinity, and can neutralize TGF-beta activity (9). Covalent linkage of LAP to one of three latent TGF-beta binding proteins (LTBPs) creates a large latent complex that may interact with the extracellular matrix (5‑7). TGF-beta activation from latency is controlled both spatially and temporally, by multiple pathways that include actions of proteases such as plasmin and MMP9, and/or by thrombospondin 1 or selected integrins (5, 8). The LAP portion of human TGF-beta 1 shares 91%, 92%, 85%, 86% and 88% aa identity with porcine, canine, mouse, rat and equine TGF-beta 1 LAP, respectively, while mature human TGF-beta 1 portion shares 100% aa identity with porcine, canine and bovine TGF-beta 1, and 99% aa identity with mouse, rat and equine TGF-beta 1. Although different isoforms of TGF-beta are naturally associated with their own distinct LAPs, the TGF-beta 1 LAP is capable of complexing with, and inactivating, all other human TGF-beta isoforms and those of most other species (9). Mutations within the LAP are associated with Camurati-Engelmann disease, a rare sclerosing bone dysplasia characterized by inappropriate presence of active TGF-beta 1 (10).

  • References:
    1. Dunker, N. & K. Krieglstein (2000) Eur. J. Biochem. 267:6982.
    2. Wahl, S.M. (2006) Immunol. Rev. 213:213.
    3. Chang, H. et al. (2002) Endocr. Rev. 23:787.
    4. Derynck, R. et al. (1985) Nature 316:701.
    5. Dabovic, B. and D.B. Rifkin (2008) “TGF-beta Bioavailability” in The TGF-beta Family. Derynck, R. and K. Miyazono (eds): Cold Spring Harbor Laboratory Press, p. 179.
    6. Brunner, A.M. et al. (1989) J. Biol. Chem. 264:13660.
    7. Miyazono, K. et al. (1991) EMBO J. 10:1091.
    8. Oklu, R. and R. Hesketh (2000) Biochem. J. 352:601.
    9. Miller, D.M. et al. (1992) Mol. Endocrinol. 6:694.
    10. Janssens, K. et al. (2003) J. Biol. Chem. 278:7718.
  • Long Name:
    Latency-associated Peptide
  • Entrez Gene IDs:
    7040 (Human)
  • Alternate Names:
    LAP (TGFbeta 1); LAP (TGF-beta 1)
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.

12 Citations: Showing 1 - 10
Filter your results:

Species
Applications
Sample Type
  1. Cutting Edge: ERK1 Mediates the Autocrine Positive Feedback Loop of TGF-? and Furin in Glioma-Initiating Cells
    Authors: E Ventura, M Weller, I Burghardt
    J. Immunol., 2017;0(0):.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  2. Secretome and degradome profiling shows that Kallikrein-related peptidases 4, 5, 6, and 7 induce TGFbeta-1 signaling in ovarian cancer cells.
    Authors: Shahinian H, Loessner D, Biniossek M, Kizhakkedathu J, Clements J, Magdolen V, Schilling O
    Mol Oncol, 2014;8(1):68-82.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: WB
  3. Identification of bone morphogenetic protein 7 (BMP7) as an instructive factor for human epidermal Langerhans cell differentiation.
    Authors: Yasmin N, Bauer T, Modak M, Wagner K, Schuster C, Koffel R, Seyerl M, Stockl J, Elbe-Burger A, Graf D, Strobl H
    J Exp Med, 2013;210(12):2597-610.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Frozen
  4. TGF-beta mediates homing of bone marrow-derived human mesenchymal stem cells to glioma stem cells.
    Authors: Shinojima N, Hossain A, Takezaki T, Fueyo J, Gumin J, Gao F, Nwajei F, Marini F, Andreeff M, Kuratsu J, Lang F
    Cancer Res, 2013;73(7):2333-44.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  5. Nonmyelinating Schwann cells maintain hematopoietic stem cell hibernation in the bone marrow niche.
    Authors: Yamazaki S, Ema H, Karlsson G, Yamaguchi T, Miyoshi H, Shioda S, Taketo MM, Karlsson S, Iwama A, Nakauchi H
    Cell, 2011;147(5):1146-58.
    Species: Mouse
    Sample Type: Whole Cells
    Application: ICC
  6. Diverse functions of reactive cysteines facilitate unique biosynthetic processes of aggregate-prone interleukin-31.
    Authors: Shen M, Siu S, Byrd S, Edelmann KH, Patel N, Ketchem RR, Mehlin C, Arnett HA, Hasegawa H
    Exp. Cell Res., 2011;317(7):976-93.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  7. Human pregnancy specific beta-1-glycoprotein 1 (PSG1) has a potential role in placental vascular morphogenesis.
    Authors: Ha CT, Wu JA, Irmak S, Lisboa FA, Dizon AM, Warren JW, Ergun S, Dveksler GS
    Biol. Reprod., 2010;83(1):27-35.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  8. Transforming growth factor-beta signaling in hypertensive remodeling of porcine aorta.
    Authors: Popovic N, Bridenbaugh EA, Neiger JD, Hu JJ, Vannucci M, Mo Q, Trzeciakowski J, Miller MW, Fossum TW, Humphrey JD, Wilson E
    Am. J. Physiol. Heart Circ. Physiol., 2009;297(6):H2044-53.
    Species: Porcine
    Sample Type: Whole Tissue
    Application: IHC
  9. Induction of epithelial-mesenchymal transition in primary airway epithelial cells from patients with asthma by transforming growth factor-beta1.
    Authors: Hackett TL, Warner SM, Stefanowicz D, Shaheen F, Pechkovsky DV, Murray LA, Argentieri R, Kicic A, Stick SM, Bai TR, Knight DA
    Am. J. Respir. Crit. Care Med., 2009;180(2):122-33.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  10. Transglutaminase 2 limits murine peritoneal acute gout-like inflammation by regulating macrophage clearance of apoptotic neutrophils.
    Authors: Rose DM, Sydlaske AD, Agha-Babakhani A, Johnson K, Terkeltaub R
    Arthritis Rheum., 2006;54(10):3363-71.
    Species: Mouse
    Sample Type: Whole Cells
    Application: Neut
  11. Compromised lymphocytes infiltrate hepatocellular carcinoma: the role of T-regulatory cells.
    Authors: Unitt E, Rushbrook SM, Marshall A, Davies S, Gibbs P, Morris LS, Coleman N, Alexander GJ
    Hepatology, 2005;41(4):722-30.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
  12. 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 Type: Cell Culture Supernates
    Application: Neut
Expand to show all 12 Citations
Cell and Tissue Staining Kits
Description Application Cat# Citations Images  

Anti-Goat HRP-DAB Cell & Tissue Staining Kit

CTS008 13
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Isotype Controls
Description Application Cat# Citations Images  

Normal Goat IgG Control

Ctrl AB-108-C 191  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Secondary Antibodies
Description Application Cat# Citations Images  

Goat IgG HRP-conjugated Antibody

WB, Simple Western HAF109 19  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat IgG HRP-conjugated Antibody

WB HAF017 15  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat IgG (H+L) PE-conjugated Antibody

Flow F0107 4  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Goat IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL001 9
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Goat IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL003 5
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat IgG (H+L) APC-conjugated Antibody

Flow F0108 6  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat IgG Horseradish Peroxidase-conjugated Antibody

WB HAF019 6  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Goat IgG Antibody

WB AF109 6
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Goat IgG Biotinylated Antibody

WB BAF109 3
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat IgG VisUCyte HRP Polymer

IHC VC004  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Goat IgG (H+L) Fluorescein-conjugated Antibody

Flow F0109 2  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Goat IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL002
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Chicken Anti-Goat IgG Biotinylated Antibody

WB BAF019
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit Anti-Goat IgG Biotinylated Antibody

WB BAF017
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Rabbit Anti-Goat IgG (H+L) Affinity Purified PAb, X Absorbed

WB, ELISA R-401-C-ABS
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

Flow F0124
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Have you used Human LAP (TGF-beta 1) Antibody?

Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.

Order Details

Contact Information

Calculators

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.

=
÷
R&D Systems Guarantee

Monoclonal
Antibody
Panels For
Screening

Learn More
Monoclonal Antibodies

Feedback

Customer Information