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Specificity: This antibody recognizes CBX5 (Chromobox protein homolog 5). It binds to a folded domain, amino acids 18-75. CBX5 is a component of heterochromatin that recognizes and binds histone H3 tails methylated at 'Lys-9' (H3K9me), leading to epigenetic repression.
Heterochromatin protein-1 (HP1) is a methyl-lysine binding protein localized at heterochromatin sites, where it mediates gene silencing. It has been shown that mammalian methyltransferases that selectively methylate histone H3 on lysine-9 generate a binding site for HP1 proteins, a family of heterochromatic adaptor molecules implicated in both gene silencing and supranucleosomal chromatin structure. High-affinity in vitro recognition of a methylated histone H3 peptide by HP1 requires a functional chromodomain. Thus, the HP1 chromodomain is a specific interaction motif for the methyl epitope on lysine-9 of histone H3. In vivo, heterochromatin association of HP1 proteins is lost in Suv39h double-null primary mouse fibroblasts but is restored after reintroduction of a catalytically active SUV39H1 HMTase.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: Antigen p25; Cbx5 antibody; chromobox homolog 5 (HP1 alpha homolog, Drosophila); Chromobox protein homolog 5; epididymis luminal protein 25; Heterochromatin protein 1 homolog alpha; heterochromatin protein 1-alpha; HGNC:1555; HP-1 alpha antibody; HP1 alpha; HP1 alpha homolog; HP1-ALPHA; HP1Hs alpha; HP1Hs-alpha
基因别名: CBX5; HEL25; HP1; HP1A
UniProt ID: (Human) P45973
Entrez Gene ID: (Human) 23468