AP-1 family transcription factor that controls the differentiation of CD8+ thymic conventional dendritic cells in the immune system. Required for development of CD8-alpha+ classical dendritic cells (cDCs) and related CD103+ dendritic cells that cross-present antigens to CD8 T-cells and produce interleukin-12 (IL12) in response to pathogens (By similarity). Acts via the formation of a heterodimer with JUN family proteins that recognizes and binds DNA sequence 5'-TGA[CG]TCA-3' and regulates expression of target genes.
Background References
1. Jain N et al. TET2 guards against unchecked BATF3-induced CAR T cell expansion. Nature. 2023 Mar
2. Ziblat A et al. Batf3(+) DCs and the 4-1BB/4-1BBL axis are required at the effector phase in the tumor microenvironment for PD-1/PD-L1 blockade efficacy. Cell Rep. 2024 May
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA723541) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
BATF3 was immunoprecipitated from 0.2 mg U-937 cell lysate with HA723541 at 2 µg/10 µl beads. Western blot was performed from the immunoprecipitate using HA723541 at 1/5,000 dilution. HRP Conjugated Anti-Rabbit IgG for IP Nano-secondary antibody at 1/5,000 dilution was used for 1 hour at room temperature.
Lane 1: U-937 cell lysate (input) Lane 2: HA723541 IP in U-937 cell lysate Lane 3: Rabbit IgG instead of HA723541 in U-937 cell lysate
Chromatin immunoprecipitations were performed with cross-linked chromatin from U-937 cells with BATF3 (HA723541) or Normal Rabbit IgG according to the ChIP protocol. The enriched DNA was quantified by real-time PCR using indicated primers. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.
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