Thermo Fisher Scientific HELIOS Monoclonal Antibody (22F6), Brilliant Ultra Violet 737, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

5 µL (0.06 µg)/test

-

Product Specifications

Species Reactivity

Dog, Human, Mouse

Host/Isotype

Armenian hamster / IgG

Recommended Isotype Control

Armenian Hamster IgG Isotype Control (eBio299Arm), Brilliant Ultra Violet™ 737, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

22F6

Conjugate

Brilliant Ultra Violet™ 737 Brilliant Ultra Violet™ 737 Brilliant Ultra Violet™ 737

View additional formats

• Alexa Fluor 700
• APC
• APC-eFluor 780
• Brilliant UV 395
• Brilliant UV 563
• Brilliant Violet 421
• Brilliant Violet 480
• Brilliant Violet 786
• eFluor 450
• FITC
• PE
• PE-Cyanine5
• PE-Cyanine7
• PE-eFluor 610
• PerCP-eFluor 710
• Request custom conjugation

Excitation/Emission Max

350/740 nm View spectra

Form

liquid

Concentration

5 µL/Test

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2, with BSA

Contains

0.09% sodium azide

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Ambient (domestic); Wet ice (international)

Product Specific Information

Description: This 22F6 monoclonal antibody reacts with human, mouse and canine Helios. Helios is a zinc-finger transcription factor first identified for its similarity to Ikaros. It is expressed in hematopoietic stem cells in both the embryo and adult mice. While the highest expression is found in regulatory T cells, Helios is not expressed in mature B cells, dendritic cells or myeloid cells. Helios can form a homodimer as well as heterodimerize with other Ikaros family members to regulate transcription. Eight isoforms of Helios exist, some of which possess a dominant-negative function that has also been found to be upregulated in lymphoid malignancies, including T-acute lymphoblastic leukemia.

22F6 has been reported to cross react with rat Helios.

Applications Reported: This 22F6 antibody has been reported for use in intracellular staining followed by flow cytometric analysis.

Applications Tested: This 22F6 antibody has been pre-diluted and tested by intracellular staining followed by flow cytometric analysis of mouse lymph node cells using the Foxp3/Transcription Factor Staining Buffer Set (Product # 00-5523-00) and protocol. Please refer to Staining Intracellular Antigens for Flow Cytometry, Protocol B: One step protocol for intracellular (nuclear) proteins located at Flow Protocols. This may be used at 5 µL (0.06 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.

Brilliant Ultra Violet™ 737 (BUV737) is a tandem dye that emits at 732 nm and is intended for use on cytometers equipped with an ultraviolet (355 nm) laser. Please make sure that your instrument is capable of detecting this fluorochrome.

When using two or more Super Bright, Brilliant Violet, Brilliant Ultra Violet, or other polymer dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401-42) or Brilliant Stain Buffer™ (Product # 00-4409-75) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer or Brilliant Stain Buffer for more information.

Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.

Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222-49) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333-54) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone-specific performance should be determined empirically.

Our internal testing suggests that Brilliant Ultra Violet™ 737 (BUV737) is compatible with short-term methanol-based fixation, but should not be stored in buffers containing methanol for longer than one hour.

Excitation: 355 nm; Emission: 732 nm; Laser: Ultraviolet Laser

BRILLIANT ULTRA VIOLET™ is a trademark or registered trademark of Becton, Dickinson and Company or its affiliates, and is used under license. Powered by Sirigen.™

Target Information

This gene encodes a member of the Ikaros family of zinc-finger proteins. Three members of this protein family (Ikaros, Aiolos and Helios) are hematopoietic-specific transcription factors involved in the regulation of lymphocyte development. This protein forms homo- or hetero-dimers with other Ikaros family members, and is thought to function predominantly in early hematopoietic development. Multiple transcript variants encoding different isoforms have been found for this gene, but the biological validity of some variants has not been determined.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.