Target type: molecularfunction
Catalysis of the reaction: dopamine + L-glutaminyl-[histone] = 5-dopaminyl-L-glutamyl-[histone] + NH4(+). [GOC:sp, PMID:32273471]
Histone dopaminyltransferase activity refers to the enzymatic activity that catalyzes the transfer of dopamine from a donor molecule to a histone protein. Histones are basic proteins that associate with DNA to form nucleosomes, the fundamental building blocks of chromatin.
Dopamine is a neurotransmitter that plays a crucial role in various physiological processes, including movement, motivation, and reward. The transfer of dopamine to histone proteins can modify the structure and function of chromatin, potentially influencing gene expression and cellular signaling.
The exact mechanism of histone dopaminyltransferase activity is not fully understood, but it is likely that the enzyme interacts with both dopamine and histone proteins, facilitating the transfer of the neurotransmitter to specific lysine residues within the histone tail.
The functional significance of histone dopaminyltransferase activity is still under investigation, but it is hypothesized to play a role in the regulation of neuronal plasticity, stress responses, and addiction.
Studies have shown that dopamine-modified histones can influence the expression of genes involved in neuronal function and behavior, suggesting a potential link between histone dopaminyltransferase activity and neuropsychiatric disorders.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Protein-glutamine gamma-glutamyltransferase 2 | A protein-glutamine gamma-glutamyltransferase 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P21980] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| 1-(2-naphthalenyl)-3-[(phenylmethyl)-propan-2-ylamino]-1-propanone | ZM39923: structure in first source | naphthalenes | |
| beta-lapachone | beta-lapachone : A benzochromenone that is 3,4-dihydro-2H-benzo[h]chromene-5,6-dione substituted by geminal methyl groups at position 2. Isolated from Tabebuia avellanedae, it exhibits antineoplastic and anti-inflammatory activities. beta-lapachone: antineoplastic inhibitor of reverse transcriptase, DNA topoisomerase, and DNA polymerase | benzochromenone; orthoquinones | anti-inflammatory agent; antineoplastic agent; plant metabolite |
| vitamin k 3 | Vitamin K 3: A synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo. | 1,4-naphthoquinones; vitamin K | angiogenesis inhibitor; antineoplastic agent; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; human urinary metabolite; nutraceutical |
| 5-bromoisatin | indoles | anticoronaviral agent | |
| isatin | tribulin: endogenous MONOAMINE OXIDASE inhibitory activity extractable into ethyl acetate found in brain and many mammalian tissues and fluids; ISATIN is a major component; produced in excess following alcohol withdrawal; | indoledione | EC 1.4.3.4 (monoamine oxidase) inhibitor; plant metabolite |
| indirubin | |||
| 5-Chloro-1H-indole-2,3-dione | indoles | anticoronaviral agent | |
| 5-iodoisatin | 5-iodoisatin: structure in first source | indoles | anticoronaviral agent |
| isoindigotin | isoindigotin: used in treatment of chronic granulocytic leukemia; structure given in first source | ||
| n-phenylacrylamide | N-phenylacrylamide: structure in first source | ||
| nsc 95397 | 1,4-naphthoquinones | ||
| ag-213 | tyrphostin 47: inhibits protein-tyrosine kinase activity of EGF-R both in vitro and in living cells; | ||
| rottlerin | rottlerin : A chromenol that is 2,2-dimethyl-2H-chromene substituted by hydroxy groups at positions 5 and 7, a 3-acetyl-2,4,6-trihydroxy-5-methylbenzyl group at position 6 and a (1E)-3-oxo-1-phenylprop-1-en-3-yl group at position 8. A potassium channel opener, it is isolated from Mallotus philippensis. rottlerin: an angiogenesis inhibitor; an inhibitor of protein kinase Cdelta (PKCdelta) and calmodulin kinase III; RN refers to (E)-isomer; do not confuse this chalcone with an anthraquinone that is also called rottlerin (RN 481-72-1); | aromatic ketone; benzenetriol; chromenol; enone; methyl ketone | anti-allergic agent; antihypertensive agent; antineoplastic agent; apoptosis inducer; K-ATP channel agonist; metabolite |
| gw-5074 | |||
| glutaminase | |||
| guanylyl imidodiphosphate | guanosine 5'-[beta,gamma-imido]triphosphate : A nucleoside triphosphate analogue that is GTP in which the oxygen atom bridging the beta- to the gamma- phosphate is replaced by a nitrogen atom A non-hydrolyzable analog of GTP, it binds tightly to G-protein in the presence of Mg(2+). Guanylyl Imidodiphosphate: A non-hydrolyzable analog of GTP, in which the oxygen atom bridging the beta to the gamma phosphate is replaced by a nitrogen atom. It binds tightly to G-protein in the presence of Mg2+. The nucleotide is a potent stimulator of ADENYLYL CYCLASES. | nucleoside triphosphate analogue |