Key Product Details

Species Reactivity

Human

Applications

Intracellular Staining by Flow Cytometry, CyTOF-ready

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # 736440
View all Helios Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human Helios
Met1-Gln97
Accession # Q9UKS7

Specificity

Detects human Helios in direct ELISA.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for Human Helios Antibody

Detection of Helios antibody in Human PBMCs antibody by Flow Cytometry.

Detection of Helios in Human PBMCs by Flow Cytometry.

Human peripheral blood mononuclear cells (PBMCs) were stained with Mouse Anti-Human CD4 APC-conjugated Monoclonal Antibody (Catalog # FAB3791A) and either (A) Mouse Anti-Human Helios Monoclonal Antibody (Catalog # MAB73092) or (B) Mouse IgG1Isotype Control (Catalog # MAB002) followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with saponin.

Applications for Human Helios Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

2.5 µg/106 cells
Sample: Human peripheral blood mononuclear cells (PBMCs) fixed with paraformaldehyde and permeabilized with saponin

Flow Cytometry Panel Builder

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Advanced Features

  • Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
  • Spillover Popups - Visualize the spectra of individual fluorochromes
  • Antigen Density Selector - Match fluorochrome brightness with antigen density
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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Helios

Helios, also known as IKZF2, is a 70 kDa DNA-binding transcription regulator in the Ikaros family that contains four N-terminal C2H2-type zinc finger domains (aa 112-219) and two C-terminal zinc finger domains (aa 471-523). Helios is expressed in developing hematopoietic and epithelial tissues and in adult T cells and thymic-derived regulatory T cells (Treg). It forms homodimers and also heterodimers with other Ikaros family proteins Ikaros, Pegasus, Eos, and Aiolos. Alternate splicing of human Helios generates a short isoform that lacks three of the the N-terminal zinc finger domains. This isoform is overexpressed in T cell leukemias where it can still dimerize with Ikaros proteins but functions as a dominant negative regulator. Within aa 1-97, human and mouse Helios share 96% aa sequence identity.

Long Name

DNA-binding Protein Helios

Alternate Names

IKZF2, ZNF1A2, ZNFN1A2

Entrez Gene IDs

22807 (Human); 22779 (Mouse)

Gene Symbol

IKZF2

UniProt

Q9UKS7 (Human)

Additional Helios Products

Product Documents for Human Helios Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human Helios Antibody

For research use only

Related Research Areas

Regulatory T Cells (Tregs)

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