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SAB4200354

Sigma-Aldrich

Anti-SMAD2 antibody produced in rabbit

~1.0 mg/mL, affinity isolated antibody

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Synonym(s):
Anti-JV18, Anti-JV18-1, Anti-MADH2, Anti-MADR2, Anti-Mothers against decapentaplegic homolog 2, Anti-hMAD-2, Anti-hSMAD2
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~52 kDa

species reactivity

human

concentration

~1.0 mg/mL

technique(s)

indirect immunofluorescence: 2.5-5.0 μg/mL using using human HeLa cells
western blot: 2-4 μg/mL using whole extracts of HEK-293T cells over-expressing human SMAD2

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... SMAD2(4087)
mouse ... Smad2(17126)
rat ... Smad2(29357)

General description

SMAD2 belongs to the SMAD family of proteins. The members of this family contain two conserved domains, the N-terminal MH1 and C-terminal MH2, that are separated by a proline-rich linker region of varying length. The MH1 domain is implicated in the regulation of nuclear import and transcription by binding to DNA and interacting with nuclear proteins. The MH2 domain is involved in the modulation of Smad oligomerization and recognition by type I receptors and it associated with cytoplasmic adaptors and transcription factors.
The SMAD2 gene is located on the human chromosome at 18q21.1.

Specificity

Anti-SMAD2 recognizes human SMAD2.

Immunogen

peptide corresponding to an internal region of human SMAD2, conjugated to KLH. The corresponding sequence is identical in mouse, rat and bovine.

Application

Anti-SMAD2 antibody produced in rabbit may be used in immunoblotting and immunofluorescence.

Biochem/physiol Actions

Members of the SMAD family are essential for transmitting signals from the transforming growth factor-β (TGFβ) to the nucleus, and thus regulate various cellular processes, including cell proliferation, apoptosis, and differentiation. Smad4 is essential for modulating the transactivation efficacy of the Smad complexes in the nucleus. SMAD2 is recruited to TGFβ receptors through its interaction with the SARA (SMAD anchor for receptor activation) protein. In response to TGFβ, SMAD2 is phosphorylated by TGFβ receptors. This phosphorylation induces the dissociation of SMAD2 from SARA and the association with the family member SMAD4.The association with SMAD4 is important for the translocation of SMAD2 into the nucleus, where it binds to target promoters and forms a transcription repressor complex with other cofactors.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in “frost-free” freezers,is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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SARA, a FYVE Domain Protein that Recruits Smad2 to the TGFbeta Receptor
Tsukazaki T, et al.
Cell, 95, 779-791 (1998)
Smad regulation in TGF-beta signal transduction
Moustakas A, et al.
Journal of Cell Science, 114, 24-24 (2001)
H Lassus et al.
The American journal of pathology, 159(1), 35-42 (2001-07-05)
The distal half of chromosome arm 18q is frequently lost in ovarian carcinoma. To define the putative tumor suppressor locus/loci more precisely we performed allelic analysis with 27 polymorphic microsatellite markers located at 18q12.3-q23 in 64 serous and 9 mucinous
Lingfang Zeng et al.
Arteriosclerosis, thrombosis, and vascular biology, 35(10), 2134-2144 (2015-09-01)
Smooth muscle cell (SMC) migration and proliferation play an essential role in neointimal formation after vascular injury. In this study, we intended to investigate whether the X-box-binding protein 1 (XBP1) was involved in these processes. In vivo studies on femoral

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