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Product Name
SMAD4 Polyclonal Antibody
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Description
Polyclonal antibody to SMAD4
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Tested applications
WB, IF
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Species reactivity
Human, Mouse
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Alternative names
SMAD4 antibody; DPC4 antibody; JIP antibody; MADH4 antibody; MYHRS antibody; SMAD family member 4 antibody
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Isotype
Rabbit IgG
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Preparation
Antigen: Recombinant fusion protein containing a sequence corresponding to amino acids 160-450 of human SMAD4 (NP_005350.1).
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Clonality
Polyclonal
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Formulation
PBS with 0.02% sodium azide, 50% glycerol, pH7.3.
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Storage instructions
Store at -20℃. Avoid freeze / thaw cycles.
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Applications
WB 1:500 - 1:2000
IF 1:50 - 1:200 -
Validations
Western blot - SMAD4 Polyclonal Antibody
Western blot analysis of extracts of various cell lines, using SMAD4 antibody at 1:1000 dilution.Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution.Lysates/proteins: 25ug per lane.Blocking buffer: 3% nonfat dry milk in TBST.Detection: ECL Basic Kit .Exposure time: 30s.
Immunofluorescence - SMAD4 Polyclonal Antibody
Immunofluorescence analysis of U2OS cells using SMAD4 antibody . Blue: DAPI for nuclear staining.
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Background
In muscle physiology, plays a central role in the balance between atrophy and hypertrophy. When recruited by MSTN, promotes atrophy response via phosphorylated SMAD2/4. MSTN decrease causes SMAD4 release and subsequent recruitment by the BMP pathway to promote hypertrophy via phosphorylated SMAD1/5/8. Acts synergistically with SMAD1 and YY1 in bone morphogenetic protein (BMP)-mediated cardiac-specific gene expression. Binds to SMAD binding elements (SBEs) (5'-GTCT/AGAC-3') within BMP response element (BMPRE) of cardiac activating regions (By similarity). Common SMAD (co-SMAD) is the coactivator and mediator of signal transduction by TGF-beta (transforming growth factor). Component of the heterotrimeric SMAD2/SMAD3-SMAD4 complex that forms in the nucleus and is required for the TGF-mediated signaling. Promotes binding of the SMAD2/SMAD4/FAST-1 complex to DNA and provides an activation function required for SMAD1 or SMAD2 to stimulate transcription. Component of the multimeric SMAD3/SMAD4/JUN/FOS complex which forms at the AP1 promoter site; required for synergistic transcriptional activity in response to TGF-beta. May act as a tumor suppressor. Positively regulates PDPK1 kinase activity by stimulating its dissociation from the 14-3-3 protein YWHAQ which acts as a negative regulator.
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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"