#14696 CBX8 (D2O8C) Rabbit mAb
|内在性||43, 48||Rabbit IgG||-20℃|
|ヒトのCBX8 タンパク質のGly344 周辺領域 (合成ペプチド)|
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Western blot analysis of extracts from various cell lines using CBX8 (D2O8C) Rabbit mAb.
Immunoprecipitation of CBX8 from A549 cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is CBX8 (D2O8C) Rabbit mAb. Western blot analysis was performed using CBX8 (D2O8C) Rabbit mAb.
Chromatin immunoprecipitations were performed with cross-linked chromatin from NCCIT cells and either JARID2 (D6M9X) Rabbit mAb #13594, CBX8 (D2O8C) Rabbit mAb, or AEBP2 (D7C6X) Rabbit mAb #14129, using SimpleChIP® Plus Enzymatic Chromatin IP Kit (Magnetic Beads) #9005. DNA Libraries were prepared using SimpleChIP® ChIP-seq DNA Library Prep Kit for Illumina® #56795. All of JARID2, CBX8, and AEBP2 are known to associate with PRC complexes. The figure shows binding of JARID2, CBX8, and AEBP2 across HOXD gene region, known target genes of JARID2, CBX8, and AEBP2 (see additional figure containing ChIP-qPCR data). For additional ChIP-seq tracks, please download the product data sheet.
Chromatin immunoprecipitations were performed with cross-linked chromatin from NCCIT cells and either CBX8 (D2O8C) Rabbit mAb or Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human HoxA1 Intron 1 Primers #7707, SimpleChIP® Human HoxA2 Promoter Primers #5517, and SimpleChIP® Human α Satellite Repeat Primers #4486. 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.
The polycomb group (PcG) proteins contribute to the maintenance of cell identity, stem cell self-renewal, cell cycle regulation and oncogenesis by maintaining the silenced state of genes that promote cell lineage specification, cell death and cell-cycle arrest (1-4). PcG proteins exist in two complexes that cooperate to maintain long-term gene silencing through epigenetic chromatin modifications: PRC1 and PRC2. PRC1 is a multi-subunit protein complex consisting of a combination of five core protein families: CBX, RING1, PHC, PCGF, and RYPB (5-7). Different combinations of protein family members lead to a diverse array of PRC1 complexes with distinct functions (8). At least two distinct classes of PRC1 complexes have been defined. The first class, known as canonical PRC1, contains RING1, PHC, PCGF and CBX protein subunits, but not RYPB (5-8). This class of PRC1 complexes requires PRC2 and H3K27Me3 for proper recruitment to target genes. CBX proteins mediate recruitment by binding to H3K27Me3. CBX8 in particular is required for repression of many lineage-specific genes during differentiation of hematopoietic stem cells and may play a role in activation of lineage-specific genes during differentiation of embryonic stem cells (9,10). The second class, known as variant PRC1, contains RYPB instead of CBX proteins (5-8). RYBP-containing PRC1 is recruited to chromatin independently of PRC2 and H3K27Me3. These variant PRC1 complexes can function independently of PRC2, or in some cases function upstream to recruit PRC2 complex to target genes.
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XP is a registered trademark of Cell Signaling Technology, Inc.
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