c-MAF Monoclonal Antibody (sym0F1), Brilliant Violet™ 421, eBioscience™

Product Specific Information

Description
The sym0F1 monoclonal antibody reacts with human and mouse c-Maf, a 42 kDa basic leucine zipper transcription factor shown to be involved in the neural, ocular and hematopoietic systems. In hematopoietic cells, it was first shown to be crucial for IL-4 expression in Th2 and was the first transcription factor believed to be Th subset-specific. More recent evidence shows that specific phospho-tyrosine residues lead to upregulation of IL-4. c-Maf has also been shown to be important to differentiation and function in both Th17 and Tfh cells. It drives expression of IL-21 in both cell types, while promoting expression of IL-23R in Th17 and CXCR5 in Tfh as well.

Applications Tested
This sym0F1 antibody has been pre-diluted and tested by intracellular staining followed by flow cytometric analysis of mouse splenocytes 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 (0.5 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.

Blocking Buffers
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) 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.

Fixation
• Samples can be stored in IC Fixation Buffer (Product # 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333) 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.

Excitation: 407 nm; Emission: 423 nm; Laser: Violet 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

c-maf is the cellular counterpart of oncogenic v-maf that belongs to the family of basic region leucine zipper domain transcription factors. The leucine-zipper domain is involved in the interaction with LRPICD. There are two forms of human c-maf mRNA, c-maf-long and c-maf-short. It is identified in the genome of the acute transforming avian retrovirus AS42. c-maf targets are IL-4 in Th2 cells, the crystalline genes in lens fiber cells, insulin gene in islet, p53 and L7 where it exerts its transcriptional role through binding to a Maf recognition element (MARE). It regulates Th2 differentiation and lineage-specific hematopoiesis. c-maf is a transcription factor for IL-10 gene expression in LPS-activated macrophages. Chromosomal aberration involving maf is found in some forms of multiple myeloma. It is expressed in myeloma cell lines and resting monocytes/macrophages.