Anti-gamma H2A.X (phospho S139) antibody,Abcam,AB11174

Target data The protein expressed by the H2AX gene is a variant histone H2A that replaces conventional H2A in certain nucleosomes, which are responsible for wrapping and compacting DNA into chromatin. This compaction limits DNA accessibility to cellular machineries that require DNA as a template, placing histones at the center of transcription regulation, DNA repair, DNA replication, and chromosomal stability. DNA accessibility is controlled through a complex array of post-translational histone modifications, known as the histone code, and nucleosome remodeling. The H2AX protein is essential for the checkpoint-mediated arrest of cell cycle progression in response to low doses of ionizing radiation and for the efficient repair of DNA double strand breaks (DSBs), particularly when it undergoes C-terminal phosphorylation. This supplementary information is collated from multiple sources and compiled automatically. See full target information H2AX phospho S139