Invitrogen™ Phospho-SMAD4 (Thr277) Polyclonal Antibody

Rabbit Polyclonal Antibody

Brand:  Invitrogen™ PA5106038

Product Code. 16692475

Description

Antibody detects endogenous levels of Smad4 only when phosphorylated at Thr277, which site historically referenced as Thr276.

Smad4 is encoded by the Smad4 gene that is located on chromosome 18 in humans. Smad4 is also known as Smad family member 4, Sma- and Mad-relatedprotein 4 or Mothers against decapentaplegic (MAD) homolog 4. Smad4 contains N-terminal MH1 (MAD homology 1) and C-terminal MH2 (MAD homology 2) globular domains that are involved in DNA binding and protein interactions respectively. Binding of the TGF-beta superfamily of ligands that includes Transforming Growth Factor -beta (TGF-beta) and bone morphogenetic protein (BMP) to its cognate receptor allows phosphorylation of Smad 1, 2, 3, 5 and 8 (R-Smad, Receptor Smad). This signals for heterotrimerization with Smad4 (co-Smad, co-mediator Smad) and translocation of the complex to the nucleus. Inhibitory or antagonistic Smad (I-Smad) that includes Smad 6 and 7, interact with activated R-Smads and attenuate the signaling pathway. Smad4 acts as a tumor suppressor protein by transcriptionally regulating its target genes such as Cyclin D1 (downregulation) and collagen (upregulation) that inhibit cell proliferation. Dephosphorylation regulates nuclear export and nucleocytoplasmic dynamics of Smads.

Specifications

• Antigen: Phospho-SMAD4 (Thr277)
• Classification: Polyclonal
• Conjugate: Unconjugated
• Gene: SMAD4
• Gene Alias: AW743858; D18Wsu70e; Deleted in Pancreatic Carcinoma 4 (DPC4); deleted in pancreatic carcinoma locus 4; deletion target in pancreatic carcinoma 4; Deletion target in pancreatic carcinoma 4 homolog; DPC4; hSMAD4; JIP; MAD (mothers against decapentaplegic Drosophila) homolog 4; MAD homolog 4; MAD homolog 4 (MADH4); Madh4; mothers against decapentaplegic homolog 4; Mothers against decapentaplegic homolog 4 (MADH4); mothers against decapentaplegic, Drosophila, homolog of, 4; mothers against DPP homolog 4; MYHRS; SMAD; SMAD 4; SMAD family member 4; SMAD, mothers against DPP homolog 4; SMAD4
• Host Species: Rabbit
• Purification Method: sequential chromatography
• Regulatory Status: RUO
• Gene ID (Entrez): 17128, 4089, 50554
• Content And Storage: -20°C
• Form: Liquid

• Applications: Immunohistochemistry, Western Blot, Immunocytochemistry
• Concentration: 1 mg/mL
• Formulation: PBS with 50% glycerol and 0.02% sodium azide; pH 7.4
• Gene Accession No.: O70437, P97471, Q13485
• Gene Symbols: SMAD4
• Immunogen: A synthesized peptide derived from human SMAD4(Accession Q13485), corresponding to amino acid residues around phosphorylated Thr277.
• Quantity: 100 μL
• Primary or Secondary: Primary
• Target Species: Human, Mouse, Rat
• Product Type: Antibody
• Isotype: IgG