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TGF-beta 2 Antibody

R&D Systems, part of Bio-Techne | Catalog # AB-12-NA

R&D Systems, part of Bio-Techne
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AB-12-NA

Key Product Details

Species Reactivity

Validated:

Multi-Species

Cited:

Human, Porcine, Avian - Chicken

Applications

Validated:

Neutralization, Simple Western, Western Blot

Cited:

Flow Cytometry, Immunohistochemistry, Neutralization, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Product Specifications

Immunogen

Porcine platelet-derived TGF-beta 2

Specificity

Detects TGF-beta 2 and TGF-beta 1.2 in direct ELISAs and Western blots. In direct ELISAs and Western blots, less than 2% cross-reactivity with TGF-beta 3 and TGF-beta 1 is observed.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for TGF-beta 2 Antibody

Detection of Human TGF-beta 2 antibody by Western Blot.

Detection of Human TGF‑ beta2 by Western Blot.

Western blot shows lysates of human heart tissue and human breast cancer tissue. PVDF membrane was probed with 0.1 µg/mL of Rabbit Anti-TGF-beta 2 Polyclonal Antibody (Catalog # AB-12-NA) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for TGF-beta 2 at approximately 70 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human TGF-beta 2 antibody by Simple WesternTM.

Detection of Human TGF‑ beta2 by Simple WesternTM.

Simple Western lane view shows lysates of human heart tissue and human breast cancer tissue, loaded at 0.2 mg/mL. A specific band was detected for TGF‑ beta2 at approximately 64 kDa (as indicated) using 5 µg/mL of Rabbit Anti-TGF‑ beta2 Polyclonal Antibody (Catalog # AB-12-NA). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
TGF-beta 2 Inhibition of IL-4-dependent Cell Proliferation and Neutralization by TGF-beta 2 Antibody.

TGF-beta 2 Inhibition of IL-4-dependent Cell Proliferation and Neutralization by TGF-beta 2 Antibody.

Porcine TGF-beta 2 (Catalog # 102-B2) inhibits Recombinant Mouse IL-4 (Catalog # 404-ML) induced proliferation in the HT-2 mouse T cell line in a dose-dependent manner (orange line). Inhibition of Recombinant Mouse IL-4 (7.5 ng/mL) activity elicited by Porcine TGF-beta 2 (1 ng/mL) is neutralized (green line) by increasing concentrations of Rabbit Anti-TGF-beta 2 Polyclonal Antibody (Catalog # AB-12-NA). The ND50 is typically 0.25-1.25 µg/mL.

Applications for TGF-beta 2 Antibody

Application
Recommended Usage

Simple Western

5 µg/mL
Sample: Human heart tissue and human breast cancer tissue

Western Blot

0.1 µg/mL
Sample: Human heart tissue and human breast cancer tissue

Neutralization

Measured by its ability to neutralize TGF‑ beta2 inhibition of IL‑4-dependent proliferation in the HT‑2 mouse T cell line [Tsang, M. et al. (1995) Cytokine 7:389]. The Neutralization Dose (ND50) is typically 0.25-1.25 µg/mL in the presence of 1 ng/mL Porcine TGF‑ beta2 and 7.5 ng/mL Recombinant Mouse IL‑4.

Reviewed Applications

Read 1 review rated 3 using AB-12-NA in the following applications:

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Reconstitution

Reconstitute at 1 mg/mL in sterile PBS.

Reconstitution Buffer Available:
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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.

Shipping

The product is shipped at ambient temperature. Upon receipt, store it 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: TGF-beta 2

TGF-beta 2 (transforming growth factor beta 2) is one of three closely related mammalian members of the large TGF-beta superfamily that share a characteristic cysteine knot structure (1-7). TGF-beta 1, -2 and -3 are highly pleiotropic cytokines proposed to act as cellular switches that regulate processes such as immune function, proliferation and epithelial-mesenchymal transition (1-4). Each TGF-beta isoform has some non-redundant functions; for TGF-beta 2, mice with targeted deletion show defects in development of cardiac, lung, craniofacial, limb, eye, ear and urogenital systems (2). Human TGF-beta 2 cDNA encodes a 414 amino acid (aa) precursor that contains a 19 aa signal peptide and a 395 aa proprotein (8). A furin-like convertase processes the proprotein to generate an N-terminal 232 aa latency-associated peptide (LAP) and a C-terminal 112 aa mature TGF- beta2 (8, 9). Disulfide-linked homodimers of LAP and TGF-beta 2 remain non-covalently associated after secretion, forming the small latent TGF-beta 1 complex (8-10). 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 (9, 10). TGF-beta is activated from latency by pathways that include actions of the protease plasmin, matrix metalloproteases, thrombospondin 1 and a subset of integrins (10). Mature human TGF-beta 2 shows 100% aa identity with porcine, canine, equine and bovine TGF-beta 2, and 97% aa identity with mouse and rat TGF-beta 2. It demonstrates cross-species activity (1). TGF-beta 2 signaling begins with binding to a complex of the accessory receptor betaglycan (also known as TGF-beta RIII) and a type II ser/thr kinase receptor termed TGF-beta RII. This receptor then phosphorylates and activates another ser/thr kinase receptor, TGF-beta RI (also called activin receptor-like kinase (ALK) -5), or alternatively, ALK-1. The whole complex phosphorylates and activates Smad proteins that regulate transcription (3, 11, 12). Use of other signaling pathways that are Smad-independent allows for disparate actions observed in response to TGF-beta in different contexts (11).

References

  1. Sporn, M.B. (2006) Cytokine Growth Factor Rev. 17:3.
  2. Dunker, N. and K. Krieglstein, 2000, Eur. J. Biochem. 267:6982.
  3. Wahl, S.M. (2006) Immunol. Rev. 213:213.
  4. Chang, H. et al. (2002) Endocr. Rev. 23:787.
  5. Lin, J.S. et al. (2006) Reproduction 132:179.
  6. Hinck, A.P. et al. (1996) Biochemistry 35:8517.
  7. Mittl, P.R.E. et al. (1996) Protein Sci. 5:1261.
  8. deMartin, R. et al. (1987) EMBO J. 6:3673.
  9. Miyazono, K. et al. (1988) J. Biol. Chem. 263:6407.
  10. Oklu, R. and R. Hesketh (2000) Biochem. J. 352:601.
  11. de Caestecker, M. et al. (2004) Cytokine Growth Factor Rev. 15:1.
  12. Zuniga, J.E. et al. (2005) J. Mol. Biol. 354:1052.

Long Name

Transforming Growth Factor beta 2

Alternate Names

TGFB2, TGFbeta 2

Entrez Gene IDs

7042 (Human); 21808 (Mouse); 397084 (Porcine)

Gene Symbol

TGFB2

Additional TGF-beta 2 Products

Product Documents for TGF-beta 2 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for TGF-beta 2 Antibody

For research use only

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