Description : (p50567|h2a_chlre : 112.0) Histone H2A - Chlamydomonas reinhardtii & (at1g54690 : 109.0) Encodes HTA3, 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 10ñ20 foci in the 18- to 24-h post-S period. By 30 h the foci have disappeared from the chromatin.; gamma histone variant H2AX (GAMMA-H2AX); FUNCTIONS IN: DNA binding; INVOLVED IN: nucleosome assembly; LOCATED IN: nucleolus, nucleus; EXPRESSED IN: 28 plant structures; EXPRESSED DURING: 13 growth stages; CONTAINS InterPro DOMAIN/s: Histone H2A (InterPro:IPR002119), Histone-fold (InterPro:IPR009072), Histone core (InterPro:IPR007125); BEST Arabidopsis thaliana protein match is: Histone superfamily protein (TAIR:AT1G08880.1); Has 3932 Blast hits to 3927 proteins in 364 species: Archae - 0; Bacteria - 0; Metazoa - 2549; Fungi - 335; Plants - 612; Viruses - 4; Other Eukaryotes - 432 (source: NCBI BLink). & (reliability: 218.0) & (original description: no original description)
Gene families : OG_42_0000138 (Orthogroups_2024-Update) Phylogenetic Tree(s): OG0000138_tree
Note:Only the main profile, including all conditions, is shown. Additional statistics and tissue specific profiles are available here.
Type | Description | Actions |
---|---|---|
Neighborhood | Picea release: MA_74667g0010 | |
Cluster | HCCA clusters: Cluster_5 |
Type | GO Term | Name | Evidence | Source |
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CC | GO:0000786 | nucleosome | IEA | InterProScan predictions |
MF | GO:0003677 | DNA binding | IEA | InterProScan predictions |
Type | GO Term | Name | Evidence | Source |
---|---|---|---|---|
BP | GO:0006270 | DNA replication initiation | IEP | Predicted GO |
MF | GO:0016209 | antioxidant activity | IEP | Predicted GO |
MF | GO:0016684 | oxidoreductase activity, acting on peroxide as acceptor | IEP | Predicted GO |
MF | GO:0051920 | peroxiredoxin activity | IEP | Predicted GO |
No external refs found! |