Mouse Monoclonal PU.1/Spi1 antibody. Carrier free. Suitable for Flow Cyt, ELISA, WB, ICC/IF and reacts with Human, Mouse, Recombinant full length protein - Human samples. Cited in 9 publications.
pH: 7.4
Constituents: 100% PBS
Flow Cyt | ELISA | WB | ICC/IF | |
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Human | Tested | Expected | Tested | Tested |
Mouse | Expected | Expected | Tested | Expected |
Recombinant full length protein - Human | Not recommended | Tested | Not recommended | Not recommended |
Species | Dilution info | Notes |
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Species Human | Dilution info - | Notes ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody. |
Species | Dilution info | Notes |
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Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
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Species Recombinant full length protein - Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Recombinant full length protein - Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human, Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
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Species Mouse, Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Recombinant full length protein - Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
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Species Recombinant full length protein - Human | Dilution info - | Notes - |
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Pioneer transcription factor, which controls hematopoietic cell fate by decompacting stem cell heterochromatin and allowing other transcription factors to enter otherwise inaccessible genomic sites. Once in open chromatin, can directly control gene expression by binding genetic regulatory elements and can also more broadly influence transcription by recruiting transcription factors, such as interferon regulatory factors (IRFs), to otherwise inaccessible genomic regions (PubMed:23658224, PubMed:33951726). Transcriptionally activates genes important for myeloid and lymphoid lineages, such as CSF1R (By similarity). Transcriptional activation from certain promoters, possibly containing low affinity binding sites, is achieved cooperatively with other transcription factors. FCER1A transactivation is achieved in cooperation with GATA1 (By similarity). May be particularly important for the pro- to pre-B cell transition (PubMed:33951726). Binds (via the ETS domain) onto the purine-rich DNA core sequence 5'-GAGGAA-3', also known as the PU-box (PubMed:33951726). In vitro can bind RNA and interfere with pre-mRNA splicing (By similarity).
Transcription factor PU.1, 31 kDa-transforming protein, SPI1
Mouse Monoclonal PU.1/Spi1 antibody. Carrier free. Suitable for Flow Cyt, ELISA, WB, ICC/IF and reacts with Human, Mouse, Recombinant full length protein - Human samples. Cited in 9 publications.
pH: 7.4
Constituents: 100% PBS
Purified from TCS.
This product was changed from ascites to tissue culture supernatant on 15 May 2019. Please note that the dilutions may need to be adjusted accordingly. If you have any questions, please do not hesitate to contact our scientific support team.
PU.1 also known as Spi1 is a transcription factor that belongs to the ETS family of transcription factors. It plays a major role in gene regulation and is an important player in hematopoietic cell differentiation. PU.1 has a molecular mass of approximately 31 kDa and is predominantly expressed in hematopoietic cells such as myeloid and B-lymphoid cells. It actively interacts with specific DNA sequences to regulate the expression of target genes.
PU.1 influences the development and function of various blood cells including macrophages neutrophils and B-cells. It is essential for the regulation of genes involved in immune responses cell proliferation and survival. PU.1 functions as part of a larger transcriptional regulatory complex and often partners with other transcription factors and coactivators to exert its effects. This cooperation allows precise gene expression control in specific cell lineages.
Expression of PU.1 is critical in the hematopoietic development pathway and the immune response pathway. It closely interacts with other transcription factors like GATA-1 and C/EBPα forming a network that affects hematopoietic lineage commitment. Within these pathways PU.1 constantly coordinates signals that influence progenitor cell fate and differentiation ensuring a balanced proportion of cell types within the blood.
PU.1 has significant implications in leukemia and other hematological malignancies. Dysregulation or mutation of PU.1 can lead to improper hematopoietic cell development and contribute to acute myeloid leukemia (AML) and other blood disorders. Additionally its expression level is closely linked with immune system function associating PU.1 indirectly with autoimmune conditions. In these contexts the interaction with other proteins like AML1 and C/EBPγ can influence disease pathogenesis by modulating gene expression patterns critical for normal hematopoietic and immune function.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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Note: Molecular weight of the proprietary tag alone is 26 kDa.
This image was generated using the ascites version of the product.
All lanes: Western blot - Anti-PU.1/Spi1 antibody [2G1] (ab88082) at 5 µg/mL
All lanes: tagged human recombinant protein fragment (the immunogen) at 0.2 µg
All lanes: Goat Anti-Mouse IgG (H&L)-HRP Conjugate at 1/5000 dilution
Predicted band size: 31 kDa
Observed band size: 39 kDa
ab88082 staining PU.1/Spi1 in human induced microglia by ICC/IF (Immunocytochemistry/Immunofluorescence). Cells were fixed with 4% paraformaldehyde for 15 minutes. Samples were incubated with primary antibody (1:200) for 2 hours at room temperature. Hoechst nuclear stain (blue) was used at 1:5000 dilution.
This image was generated using the ascites version of the product.
ab88082, at 10 μg/ml, staining PU.1/Spi1 in HeLa cells by Immunofluorescence.
This image was generated using the ascites version of the product.
Detection limit for recombinant (human) tagged ab88082 is approximately 0.1ng/ml as a capture antibody.
This image was generated using the ascites version of the product.
Overlay histogram showing K562 cells stained with ab88082 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab88082, 2μg/1x106 cells) for 30 min at 22°C. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (Goat Anti-Mouse IgG H&L (DyLight® 488) preadsorbed ab96879) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (Mouse IgG1, Kappa Monoclonal [B11/6] - Isotype Control ab91353, 2μg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.
This image was generated using the ascites version of the product.
This image was generated using the ascites version of the product.
All lanes: Western blot - Anti-PU.1/Spi1 antibody [2G1] (ab88082) at 5 µg/mL
All lanes: Raw 264.7 cell lysate (Mouse) at 25 µg
All lanes: Goat anti-Mouse IgG (H&L)-HRP at 1/2500 dilution
Predicted band size: 31 kDa
Observed band size: 31 kDa
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