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SMAD4 Antibody (600-401-A41) in WB
Western blot using Rocklands affinity purified anti-SMAD4 to detect over-expressed SMAD4 in transfected COS cells (lane 2). Lane 1 contains lysate from mock transfected COS cells. A doublet band is seen in the SMAD4 transfected lysate with the upper band (arrowhead) representing SMAD4 and the lower band being non-specific staining. The membrane was probed with the primary antibody at a 1:1,000 dilution. Personal Communication Kathleen Flanders, CCR-NCI, Bethesda, MD.
Product Details
600-401-A41
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human,
Mouse,
Xenopus
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
This affinity purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to a region near the carboxy terminus of human SMAD4 protein.
Conjugate
Form
Liquid
Concentration
1.2 mg/mL
Purification
Affinity chromatography
Storage buffer
0.02M potassium phosphate, pH 7.2, with 0.15M NaCl
Contains
0.01% sodium azide
Storage conditions
-20° C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
Directed against human SMAD4 protein. A BLAST analysis was used to suggest cross-reactivity with SMAD4 protein from human, mouse and Xenopus based on 100% homology with the immunizing sequence. Reactivity against homologues from other sources is not known.
Target Information
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-related protein 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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: 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; hSMAD4; MAD homolog 4; MAD homolog 4 (MADH4); Mothers against decapentaplegic homolog 4; Mothers against decapentaplegic homolog 4 (MADH4); mothers against decapentaplegic, Drosophila, homolog of, 4; mothers against DPP homolog 4; SMAD; SMAD 4; SMAD family member 4; SMAD, mothers against DPP homolog 4
Gene Aliases: AW743858; D18Wsu70e; DPC4; JIP; MADH4; MYHRS; SMAD4
UniProt ID: (Human) Q13485, (Mouse) P97471
Entrez Gene ID: (Human) 4089, (Mouse) 17128
RNA polymerase II core promoter proximal region sequence-specific DNA binding
core promoter proximal region sequence-specific DNA binding
transcription factor activity, protein binding
transcription factor activity, RNA polymerase II transcription factor binding
transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding
RNA polymerase II transcription factor binding
DNA binding
chromatin binding
transcription factor activity, sequence-specific DNA binding
protein binding
collagen binding
transforming growth factor beta receptor, common-partner cytoplasmic mediator activity
identical protein binding
protein homodimerization activity
sequence-specific DNA binding
transcription regulatory region DNA binding
metal ion binding
protein heterodimerization activity
I-SMAD binding
R-SMAD binding
RNA polymerase II regulatory region sequence-specific DNA binding
transcriptional activator activity, RNA polymerase II transcription regulatory region sequence-specific binding
filamin binding
SMAD binding
DNA-binding transcription factor
gene-specific transcriptional regulator
negative regulation of transcription from RNA polymerase II promoter
ovarian follicle development
branching involved in ureteric bud morphogenesis
response to hypoxia
in utero embryonic development
gastrulation with mouth forming second
atrioventricular valve formation
epithelial to mesenchymal transition involved in endocardial cushion formation
left ventricular cardiac muscle tissue morphogenesis
positive regulation of cell proliferation involved in heart valve morphogenesis
brainstem development
transcription from RNA polymerase II promoter
cellular iron ion homeostasis
transforming growth factor beta receptor signaling pathway
SMAD protein complex assembly
spermatogenesis
single fertilization
axon guidance
endoderm development
mesoderm development
cell proliferation
negative regulation of cell proliferation
negative regulation of cardiac muscle hypertrophy
positive regulation of epithelial to mesenchymal transition
positive regulation of pathway-restricted SMAD protein phosphorylation
neural crest cell differentiation
regulation of transforming growth factor beta receptor signaling pathway
negative regulation of cell growth
BMP signaling pathway
positive regulation of transforming growth factor beta receptor signaling pathway
positive regulation of BMP signaling pathway
somite rostral/caudal axis specification
regulation of transforming growth factor beta2 production
positive regulation of luteinizing hormone secretion
somatic stem cell population maintenance
intracellular signal transduction
atrioventricular canal development
endothelial cell activation
embryonic digit morphogenesis
negative regulation of transcription, DNA-templated
positive regulation of transcription, DNA-templated
positive regulation of transcription from RNA polymerase II promoter
positive regulation of follicle-stimulating hormone secretion
developmental growth
neuron fate commitment
sebaceous gland development
formation of anatomical boundary
regulation of binding
positive regulation of histone H3-K4 methylation
regulation of hair follicle development
palate development
uterus development
positive regulation of SMAD protein import into nucleus
SMAD protein signal transduction
ventricular septum morphogenesis
negative regulation of cell death
endocardial cell differentiation
female gonad morphogenesis
interleukin-6-mediated signaling pathway
negative regulation of ERK1 and ERK2 cascade
response to transforming growth factor beta
cellular response to BMP stimulus
metanephric mesenchyme morphogenesis
nephrogenic mesenchyme morphogenesis
seminiferous tubule development
positive regulation of transcription from RNA polymerase II promoter involved in cellular response to chemical stimulus
positive regulation of histone H3-K9 acetylation
kidney development
cardiac septum development
transcription, DNA-templated
regulation of transcription, DNA-templated
regulation of transcription from RNA polymerase II promoter
gastrulation
anterior/posterior pattern specification
regulation of cell proliferation
negative regulation of protein catabolic process
tissue morphogenesis
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