Drosophila Smad2 Antibody

Catalog # Availability Size / Price Qty
AF7948
AF7948-SP
Detection of Drosophila Smad2 by Western Blot.
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Drosophila Smad2 Antibody Summary

Species Reactivity
Drosophila
Specificity
Detects Drosophila Smad2 in direct ELISAs and Western blots. In direct ELISAs, approximately 10% cross-reactivity with recombinant human (rh) Smad1 is observed, and less than 1% cross-reactivity with rhSmad2, rhSmad3, and rhSmad5 is observed.
Source
Polyclonal Sheep IgG
Purification
Antigen Affinity-purified
Immunogen
E. coli-derived recombinant Drosophila Smad2
Gly262-Ser486
Accession # O96660
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.1-0.7 µg/mL
See below
Immunohistochemistry
0.1-0.7 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.

Data Examples

Western Blot Detection of Drosophila Smad2 by Western Blot. View Larger

Detection of Drosophila Smad2 by Western Blot. Western blot shows recombinant Drosophila Smad2 (2 ng/lane). PVDF membrane was probed with 0.1 µg/mL of Sheep Anti-Drosophila Smad2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7948) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Smad2 (C-terminal fragment) at approximately 25 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Western Blot Detection of Drosophila Smad2 by Western Blot. View Larger

Detection of Drosophila Smad2 by Western Blot. Western blot shows wild-type and Smad2 null mutation Drosophila larval extracts. PVDF membrane was probed with 0.7 µg/mL of Sheep Anti-Drosophila Smad2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7948) followed by Anti-Sheep IgG Secondary Antibody. A specific band was detected for Smad2 at the expected mobility of approximately 58 kDa, but not mutant extracts. This experiment was conducted under reducing conditions. dSmad2 null mutation is described in Peterson, AJ, et al. (2012) PLoS One 7: e36548. Image courtesy of Dr. Aidan Peterson and Dr. Michael O'Connor, Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota, USA.

Immunohistochemistry Smad2 in Drosophila Larvae. View Larger

Smad2 in Drosophila Larvae. Smad2 was detected in wild-type and Smad2 null mutation Drosophila larvae using Sheep Anti-Drosophila Smad2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7948) at 0.7 μg/mL. Tissue was stained using a fluorescent Anti-Sheep IgG Secondary Antibody. A single confocal image in the upper panel depicts detection of endogenous Smad2 in epidermal and central nervous system cells. The dSmad2 mutant embryo in the lower panel was stained and imaged identically and reveals background staining. dSmad2 null mutation is described in Peterson, AJ, et al. (2012) PLoS One 7: e36548. Image courtesy of Dr. Aidan Peterson and Dr. Michael O'Connor, Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota, USA.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
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: Smad2

Smad2 (SMAll body plus Mothers Against Decapentaplegic; also SmoX [Smad on Chr X]) is a 54 kDa (predicted) member of the receptor regulated Smad family of proteins. It is a downstream component of the Drosophila activin/TGF beta signaling pathway, and appears to play a key role in cell proliferation. Analogous to the system in vertebrates, stimulation of the fruitfly activin type I receptor (baboon):type II receptor (punt) complex results in dSmad2 (Drosophila Smad2) phosphorylation and subsequent interaction with dSmad4/Medea. As in vertebrates, the Drosophila Samd2/Smad4 complex enters the nucleus and interacts with a transcriptional cofactor(s) termed TGIF. At this point, the vertebrate:invertebrate systems diverge over the nature of the TGIF cofactor(s); vertebrate TGIF is a corepressor, while invertebrate TGIF (dTGIF) is a coactivator. Drosophila Smad2 is 486 amino acids (aa) in length. It contains two Mad homology domains (aa 7-130 and 285-475), the former of which participates in DNA-binding. Over aa 262-486, Drosophila Smad2 shares 70% aa sequence identity with both mouse and human Smad2.

Long Name
Mothers Against DPP Homolog 2
Entrez Gene IDs
4087 (Human); 17126 (Mouse); 29357 (Rat); 31738 (Drosophila)
Alternate Names
hMAD-2; hSMAD2; JV18; JV18-1; JV18-1SMAD, mothers against DPP homolog 2 (Drosophila); MAD homolog 2; Mad protein homolog; Mad, mothers against decapentaplegic homolog 2; MADH2; MADH2MGC34440; MADR2; MADR2MGC22139; Mad-related protein 2; mother against DPP homolog 2; mothers against decapentaplegic homolog 2; Mothers against DPP homolog 2; Sma- and Mad-related protein 2; SMAD 2; SMAD family member 2MAD, mothers against decapentaplegic homolog 2 (Drosophila); SMAD, mothers against DPP homolog 2; Smad2; Smox

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Cell and Tissue Staining Kits

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Secondary Antibodies

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