|7155||PathScan® Phospho-Histone H3 (Ser10) Sandwich ELISA Kit||
The relationship between protein concentration of lysates from Jurkat cells, untreated or treated with calyculin A (100 nM) and pervanadate (1 mM), and immediate light generation with chemiluminescent substrate is shown. Cells were lysed using Cell Lysis Buffer (10X) #9803. Graph inset corresponding to the shaded area shows high sensitivity and a linear response at the low protein concentration range.
The PathScan® Phospho-Histone H3 (Ser10) Chemiluminescent Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of phospho-histone H3 (Ser10) protein with a chemiluminescent readout. Chemiluminescent ELISAs often have a wider dynamic range and higher sensitivity than conventional chromogenic detection. This chemiluminescent ELISA, which is offered in low volume microplates, shows increased signal and sensitivity while using smaller samples. A Histone H3 Rabbit mAb has been coated onto the microwells. After incubation with cell lysates, both nonphospho- and phospho-histone H3 proteins are captured by the coated antibody. Following extensive washing, Biotinylated Phospho-Histone H3 (Ser10) Detection mAb is added to detect the captured phospho-histone H3 (Ser10) protein. HRP-linked Streptavidin is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. Chemiluminescent reagent is added for signal development. The magnitude of light emission, measured in relative light units (RLU), is proportional to the quantity of phospho-histone H3 (Ser10) protein.
Antibodies in kit are custom formulations specific to kit.
The PathScan® Phospho-Histone H3 (Ser10) Chemiluminescent Sandwich ELISA Kit detects endogenous levels of phospho-histone H3 (Ser10). This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Modulation of chromatin structure plays an important role in the regulation of transcription in eukaryotes. The nucleosome, made up of DNA wound around eight core histone proteins (two each of H2A, H2B, H3, and H4), is the primary building block of chromatin (1). The amino-terminal tails of core histones undergo various post-translational modifications, including acetylation, phosphorylation, methylation, and ubiquitination (2-5). These modifications occur in response to various stimuli and have a direct effect on the accessibility of chromatin to transcription factors and, therefore, gene expression (6). In most species, histone H2B is primarily acetylated at Lys5, 12, 15, and 20 (4,7). Histone H3 is primarily acetylated at Lys9, 14, 18, 23, 27, and 56. Acetylation of H3 at Lys9 appears to have a dominant role in histone deposition and chromatin assembly in some organisms (2,3). Phosphorylation at Ser10, Ser28, and Thr11 of histone H3 is tightly correlated with chromosome condensation during both mitosis and meiosis (8-10). Phosphorylation at Thr3 of histone H3 is highly conserved among many species and is catalyzed by the kinase haspin. Immunostaining with phospho-specific antibodies in mammalian cells reveals mitotic phosphorylation at Thr3 of H3 in prophase and its dephosphorylation during anaphase (11).
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Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
PathScan is a trademark of Cell Signaling Technology, Inc.