Render Target: STATIC
Render Timestamp: 2025-03-20T10:40:02.119Z
Commit: 779953b12a5930618aae6aca7c87fb286faeb1d7
XML generation date: 2025-03-07 13:16:09.028
Product last modified at: 2025-03-17T18:15:14.249Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77
R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.

GFI1 (E5J6J) Rabbit mAb #31929

Filter:
  • WB
  • IP
  • IF
  • F

    Supporting Data

    REACTIVITY H M
    SENSITIVITY Endogenous
    MW (kDa) 55
    Source/Isotype Rabbit IgG
    Application Key:
    • WB-Western Blotting 
    • IP-Immunoprecipitation 
    • IF-Immunofluorescence 
    • F-Flow Cytometry 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunoprecipitation 1:100
    Immunofluorescence (Immunocytochemistry) 1:800 - 1:3200
    Flow Cytometry (Fixed/Permeabilized) 1:800 - 1:1600

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    GFI1 (E5J6J) Rabbit mAb recognizes endogenous levels of total GFI1 protein. This antibody may detect a band of unknown identity at 40kDa.

    Species Reactivity:

    Human, Mouse

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the amino terminus of human GFI1 protein.

    Background

    GFI1 and its homolog GFI1b are transcriptional repressors and important regulators of hematopoiesis (1). GFI1/GFI1b negatively regulate transcription by recruiting chromatin regulatory proteins including CoREST, the histone demethylase LSD1, and HDACs 1 and 2, which associate with the GFI1 proteins via their N-terminal SNAG repression domains (2,3). GFI1 is expressed in hematopoietic stem cells (HSCs), where it is necessary to restrict HSC proliferation and maintain functional integrity (4,5). It is also expressed in common lymphoid and myeloid progenitors, where it plays an essential role in lymphoid and granulo-monocytic differentiation (5,6). Indeed, GFI1 knockout mice show impaired granulocytic differentiation and develop severe neutropenia, causing them to die quickly due to bacterial infection (7,8). In contrast, GFI1b is necessary for erythroid and megakaryocytic development and differentiation, and inactivation of GFI1b in mice leads to embryonic lethality (9). Unsurprisingly, the GFI1 proteins are implicated in multiple blood disorders, and GFI1 specifically is considered to be a predictor and therapeutic target for acute myeloid leukemia (AML)/myelodysplastic syndrome (MDS) (10). A GFI1 variant protein caused by a point mutation (S36N) may also confer a disposition to AML and accelerate disease progression (11,12). Interestingly, GFI1 has also been described to be an oncogenic driver for certain subsets of Group 3 medulloblastomas (13,14).
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