Target type: molecularfunction
Catalysis of the reaction: S-adenosyl-L-methionine + histone H3 L-lysine (position 79) = S-adenosyl-L-homocysteine + histone H3 N6-methyl-L-lysine (position 79). This reaction is the addition of a methyl group to the lysine residue at position 79 of the histone H3 protein. [GOC:mah, PMID:15371351]
Histone H3K79 methyltransferase activity catalyzes the transfer of a methyl group from a donor molecule, such as S-adenosyl methionine (SAM), to the ε-amino group of lysine 79 (K79) on histone H3. This post-translational modification plays a crucial role in regulating chromatin structure and gene expression. Histone H3K79 methylation is associated with active transcription and is involved in various cellular processes, including DNA replication, repair, and recombination. The specific methylation state of K79, whether mono-, di-, or tri-methylated, can influence the recruitment of different protein complexes to chromatin and thereby modulate gene expression.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Histone-lysine N-methyltransferase, H3 lysine-79 specific | A histone-lysine N-methyltransferase, H3 lysine-79 specific that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q8TEK3] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| toyocamycin | toyocamycin : An N-glycosylpyrrolopyrimidine that is tubercidin in which the hydrogen at position 5 of the pyrrolopyrimidine moiety has been replaced by a cyano group. Toyocamycin: 4-Amino-5-cyano-7-(D-ribofuranosyl)-7H- pyrrolo(2,3-d)pyrimidine. Antibiotic antimetabolite isolated from Streptomyces toyocaensis cultures. It is an analog of adenosine, blocks RNA synthesis and ribosome function, and is used mainly as a tool in biochemistry. | antibiotic antifungal agent; N-glycosylpyrrolopyrimidine; nitrile; ribonucleoside | antimetabolite; antineoplastic agent; apoptosis inducer; bacterial metabolite |
| nsc 65346 | sangivamycin : A nucleoside analogue that is adenosine in which the nitrogen at position 7 is replaced by a carbamoyl-substituted carbon. It is a potent inhibitor of protein kinase C. sangivamycin: RN given refers to parent cpd | nucleoside analogue | protein kinase inhibitor |
| adenosine | quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | adenosines; purines D-ribonucleoside | analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent |
| sinefungin | adenosines; non-proteinogenic alpha-amino acid | antifungal agent; antimicrobial agent | |
| 5-iodotubercidin | 7-iodotubercidin: inhibits Toxoplasma gondii adenosine kinase | organoiodine compound | |
| s-adenosyl-3-thiopropylamine | S-adenosyl-3-thiopropylamine : A thioadenosine that is adenosine in which the hydroxy group at C-5' is replaced by a 3-aminopropyl group. S-adenosyl-3-thiopropylamine: decarboxylated S-adenosylhomocysteine; RN given refers to parent cpd | organic sulfide; primary amino compound; thioadenosine | |
| s-adenosylhomocysteine | S-adenosyl-L-homocysteine : An organic sulfide that is the S-adenosyl derivative of L-homocysteine. S-Adenosylhomocysteine: 5'-S-(3-Amino-3-carboxypropyl)-5'-thioadenosine. Formed from S-adenosylmethionine after transmethylation reactions. | adenosines; amino acid zwitterion; homocysteine derivative; homocysteines; organic sulfide | cofactor; EC 2.1.1.72 [site-specific DNA-methyltransferase (adenine-specific)] inhibitor; EC 2.1.1.79 (cyclopropane-fatty-acyl-phospholipid synthase) inhibitor; epitope; fundamental metabolite |
| epz004777 | N-glycosyl compound | ||
| epz-5676 | 5'-deoxyribonucleoside | ||
| gsk343 | GSK343 : A member of the class of indazoles that is 1-isopropyl-1H-indazole-4-carboxamide in which the nitrogen of the carboxamide group is substituted by a (6-methyl-2-oxo-4-propyl-1,2-dihydropyridin-3-yl)methyl group and in which the indazole ring is substituted at position 6 by a 2-(4-methylpiperazin-1-yl)pyridin-4-yl group. A highly potent and selective EZH2 inhibitor (IC50 = 4 nM). GSK343: an EZH2 methyltransferase inhibitor | aminopyridine; indazoles; N-alkylpiperazine; N-arylpiperazine; pyridone; secondary carboxamide | antineoplastic agent; apoptosis inducer; EC 2.1.1.43 (enhancer of zeste homolog 2) inhibitor |
| 6,7-dimethoxy-2-(pyrrolidin-1-yl)-n-(5-(pyrrolidin-1-yl)pentyl)quinazolin-4-amine | 6,7-dimethoxy-2-(pyrrolidin-1-yl)-N-(5-(pyrrolidin-1-yl)pentyl)quinazolin-4-amine: a SETD8 inhibitor; structure in first source |