DB identifier
|
AT1G08880 | Secondary Identifier
|
locus:2036054 |
| Brief Description | Histone superfamily protein |
| TAIR Computational Description | Histone superfamily protein;(source:Araport11) |
| TAIR Curator Summary | Encodes HTA5, a histone H2A protein. H2AX is a meiosis-specific isoform of histone H2A. Upon DSB formation, rapid accumulation of phosphorylated H2AX (γ-H2AX) occurs around the break site. H2AX foci accumulate in early G2. Immunolocalization studies in spread preparations of wild-type meiocytes at G2/early leptotene revealed the accumulation of numerous rather diffuse γ-H2AX foci throughout the chromatin. However, their accumulation is not contemporaneous with that of AtSPO11-1. At 3 h post-S, no γ-H2AX foci are detected. During the 3- to 5-h window when AtSPO11-1 foci rapidly disappear, there is an equally swift accumulation of γ-H2AX to a maximum of >50 diffuse foci. The level of γH2AX then remains constant for a further 13 h before undergoing a gradual decrease to 10–20 foci in the 18- to 24-h post-S period. By 30 h the foci have disappeared from the chromatin. |
| TAIR Short Description | Histone superfamily protein |
| TAIR Aliases | G-H2AX, GAMMA-H2AX, H2AXA, HTA5 |
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