Product Name :
Sp3/4 (G659) polyclonal antibody Background :
The Sp transcription factor family includes Sp1, Sp2, Sp3 (SPR-2) and Sp4(SPR-1). Sp transcription factors share similar structures but do not share similar functions. All four proteins contain a highly conserved DNA-binding domain composed of three zinc fingers at the C-terminus. Sp family members bind the consensus sequence GGGGCGGGGC and other closely related sequences which are known as GC boxes. Sp1, Sp3 and Sp4 share a high affinity for GC boxes while Sp2 does not. Sp2 only weakly binds to GT boxes. Sp1, Sp2 and Sp3 are ubiquitously expressed, while Sp4 is abundantly expressed in brain with limited expression in other tissues. Sp1 and Sp3,but not Sp2 or Sp4, interact with E2, a regulatory element for the β4 subunit of neuronal nicotinic acetylcholine receptors. Sp3 is the only Sp member to inhibit Sp1 and Sp4 mediated transcription. Product :
Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
Sp3/4 (G659) polyclonal antibody detects endogenous levels of Sp3 and Sp4 protein. Immunogen :
Synthetic peptide, corresponding to amino acids 630-680 of Human Sp3. Conjugate :
Unconjugated Modification :
Unmodification

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  Western blot (WB) analysis of Sp3/4 (G659) pAb at 1:1000 dilution Lane1:L02 whole cell lysate(20ug) Lane2:MCF-7 whole cell lysate(20ug) Lane3:H9C2 whole cell lysate(40ug) Lane4:MEF whole cell lysate(40ug)
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  Immunohistochemistry (IHC) analyzes of Sp3/4 (G659) pAb in paraffin-embedded human lung carcinoma tissue at 1:50.showing nucleus staining. Negative control (the right)Using PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG-biotin followed by avidin-peroxidase.
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  Immunohistochemistry (IHC) analyzes of Sp3/4 (G659) pAb in paraffin-embedded human lung carcinoma tissue at 1:50.showing nucleus staining. Negative control (the right)Using PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG-biotin followed by avidin-peroxidase.
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  Immunohistochemistry (IHC) analyzes of Sp3/4 (G659) pAb in paraffin-embedded human lung carcinoma tissue at 1:50.showing nucleus staining. Negative control (the right)Using PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG-biotin followed by avidin-peroxidase.

Bioworld Biotech only provide peptides for our antibodies and do not provide additional peptide customization services.

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Price/Size :

USD 368/1mg/vial

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Tips: 

For phospho antibody, we provide phospho peptide（0.5mg) and non-phospho peptide(0.5mg).

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Describe :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (WB) and Immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or IHC performed with the neutralized antibody.

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Formula:

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.

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Storage:

The freeze-dried powder is more stable. For short time at 2-8°C. For long term storage store at -20°C. 

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Note :

This product is for research use only (RUO only). Not for use in diagnostic or therapeutic procedures.

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