| Code | CSB-RA010097A139phHU |
| Size | US$210 |
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| Application | Recommended Dilution |
|---|---|
| WB | 1:500-1:5000 |
| IHC | 1:50-1:200 |
Phosphorylation of histone H2AX at serine 139, commonly referred to as γH2AX, represents one of the earliest and most sensitive cellular responses to DNA double-strand breaks. This modification serves as a critical marker for studying DNA damage response pathways, genomic instability, and the mechanisms underlying cancer development and treatment resistance. Researchers investigating genotoxic stress, radiation biology, or therapeutic responses rely heavily on accurate detection of this phosphorylation event to assess DNA repair kinetics and cellular damage.
This recombinant monoclonal antibody, generated from clone 1F10 in rabbit host, offers the reproducibility and consistency that phospho-specific detection demands. Because recombinant antibodies are produced from defined sequences rather than traditional hybridoma methods, researchers can expect reliable lot-to-lot performance, which is particularly valuable when tracking subtle changes in phosphorylation status across longitudinal studies or when comparing results between laboratories.
Validation in western blot applications demonstrates clean detection of phospho-H2AX at the expected 15 kDa molecular weight in 293 whole cell lysates, confirming specificity for the target without aberrant banding. The antibody performs effectively at dilutions ranging from 1:3000 to 1:10000, providing flexibility to optimize signal intensity based on sample abundance. Additional immunohistochemistry validation in paraffin-embedded human brain tissue expands its utility for researchers examining DNA damage in fixed tissue sections, enabling studies of neurodegeneration, aging, or treatment effects in archival samples.
Whether investigating checkpoint signaling, characterizing responses to chemotherapeutic agents, or exploring epigenetic regulation of chromatin structure, this antibody provides a dependable tool for phospho-H2AX detection in human samples across multiple experimental platforms.
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