Histone H3 is one of the DNA-binding proteins found in the chromatin of all eukaryotic cells. H3 along with four core histone proteins binds to DNA forming the structure of the nucleosome. Histones play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. Post translationally, histones are modified in a variety of ways to either directly change the chromatin structure or allow for the binding of specific transcription factors. The N-terminal tail of histone H3 protrudes from the globular nucleosome core and can undergo several different types of post-translational modification that influence cellular processes. These modifications include the covalent attachment of methyl or acetyl groups to lysine and arginine amino acids and the phosphorylation of serine or threonine.
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Protein Aliases: H3 histone family, member A; H3 histone family, member I; H3 histone family, member K; H3 histone family, member L; H3 histone family, member M; H3 histone, family 2; H3-clustered histone 13; H3-clustered histone 14; H3-clustered histone 15; H3-clustered histone 2; H3-clustered histone 3; H3-clustered histone 4; H3-clustered histone 6; H3-clustered histone 7; H3/b; H3/d; H3/f; H3/j; histone 1, H3a; histone 1, H3b; histone 1, H3f; histone 1, H3h; histone 2, H3a; histone 2, H3c; histone 2, H3c2; histone 2, H3ca2; Histone 3; Histone Cluster 2 H3a; histone cluster 2, H3c2, pseudogene; histone gene complex 1; histone H3; Histone H3.1; Histone H3.2; Histone H3/a; Histone H3/b; Histone H3/c; Histone H3/d; Histone H3/f; Histone H3/h; Histone H3/i; Histone H3/j; Histone H3/k; Histone H3/l; Histone H3/m; Histone H3/o
Gene Aliases: H3; H3-143; H3-291; H3-53; H3-614; H3-B; H3-F; H3.1-221; H3.1-291; H3.1-I; H3.2; H3.2-221; H3.2-614; H3.2-615; H3.2-616; H3/A; H3/i; H3/k; H3/l; H3/M; H3/n; H3/o; H3a; H3b; H3C1; H3C10; H3C11; H3C12; H3C13; H3C14; H3C15; H3C2; H3C3; H3C4; H3C6; H3C7; H3C8; H3f; H3F1K; H3F2; H3FA; H3FB; H3FC HIST1H3C; H3FD; H3FF; H3FH; H3FI; H3FJ; H3FK; H3FL; H3FM; H3FN; H3g; H3h; H3i; Hist1; HIST1H3A; HIST1H3B; Hist1h3c; HIST1H3D; HIST1H3E; HIST1H3F; HIST1H3G; HIST1H3H; HIST1H3I; HIST1H3J; HIST2H3A; Hist2h3b; HIST2H3C; Hist2h3c1; Hist2h3c2; Hist2h3c2-ps; Hist2h3ca1; Hist2h3ca2; HIST2H3D; M32461
Molecular Function: histone