protein propionyltransferase activity
Definition
Target type: molecularfunction
Catalysis of the reaction: propionyl-CoA + lysine in peptide = CoA + N-propionyl-lysine-peptide. [PMID:17267393]
Propionyltransferase activity is a crucial molecular function that involves the transfer of a propionyl group from a donor molecule, such as propionyl-CoA, to an acceptor molecule. This enzymatic reaction plays a significant role in various metabolic pathways, particularly in the catabolism of branched-chain amino acids (BCAAs) and the biosynthesis of certain metabolites.
The propionyl group, a three-carbon unit, is attached to the acceptor molecule through a covalent bond, typically to a nitrogen or oxygen atom. This transfer reaction is facilitated by enzymes known as propionyltransferases, which possess a specific active site that binds both the donor and acceptor molecules.
The molecular function of propionyltransferase activity can be further categorized into different types based on the specific acceptor molecule:
- **Amino acid propionyltransferases:** These enzymes transfer a propionyl group to amino acids, such as lysine, to form N-propionyl-lysine. This modification can impact the structure and function of proteins.
- **Fatty acid propionyltransferases:** These enzymes add a propionyl group to fatty acids, resulting in the formation of propionyl-fatty acids. This process is involved in the biosynthesis of certain types of lipids.
- **Coenzyme A propionyltransferases:** These enzymes transfer a propionyl group to coenzyme A (CoA), producing propionyl-CoA. Propionyl-CoA is a crucial intermediate in the catabolism of BCAAs and the metabolism of odd-chain fatty acids.
The activity of propionyltransferases is tightly regulated to ensure proper metabolic flux. This regulation can occur through various mechanisms, including allosteric control, substrate availability, and post-translational modifications.
In summary, propionyltransferase activity is a fundamental molecular function that plays a critical role in various metabolic processes. The transfer of a propionyl group from a donor to an acceptor molecule can modify the structure and function of proteins, lipids, and other metabolites, contributing to the overall cellular metabolism.'
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Proteins (2)
| Protein | Definition | Taxonomy |
|---|---|---|
| Histone acetyltransferase KAT8 | A histone acetyltransferase KAT8 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9H7Z6] | Homo sapiens (human) |
| Histone acetyltransferase p300 | A histone acetyltransferase p300 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q09472] | Homo sapiens (human) |
Compounds (33)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| 4-aminophenol | 4-aminophenol : An amino phenol (one of the three possible isomers) which has the single amino substituent located para to the phenolic -OH group. 4-aminophenol: RN given refers to parent cpd | aminophenol | allergen; metabolite |
| 3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole | 3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole: antineoplastic; activates platelet guanylate cyclase; a radiosensitizing agent and guanylate cyclase activator; structure in first source lificiguat : A member of the class of indazoles that is 1H-indazole which is substituted by a benzyl group at position 1 and a 5-(hydroxymethyl)-2-furyl group at position 3. It is an activator of soluble guanylate cyclase and inhibits platelet aggregation. | aromatic primary alcohol; furans; indazoles | antineoplastic agent; apoptosis inducer; platelet aggregation inhibitor; soluble guanylate cyclase activator; vasodilator agent |
| 1-nitronaphthalene | 1-nitronaphthalene : A mononitronaphthalene substituted by a nitro group at position 1. 1-nitronaphthalene: RN given refers to cpd with locant for nitro moiety in 1 position mononitronaphthalene : A nitronaphthalene carrying a single nitro group at unspecified position. nitronaphthalene : A nitroarene that is naphthalene substituted by at least one nitro group. | mononitronaphthalene | environmental contaminant; mouse metabolite |
| phenylhydrazine | phenylhydrazines | xenobiotic | |
| 4-chloroaniline | 4-chloroaniline : A chloroaniline in which the chloro atom is para to the aniline amino group. 4-chloroaniline: RN given refers to parent cpd; structure | chloroaniline; monochlorobenzenes | |
| 1-naphthylamine | 1-naphthylamine : A naphthylamine that is naphthalene substituted by an amino group at position 1. 1-Naphthylamine: A suspected industrial carcinogen (and listed as such by OSHA). Its N-hydroxy metabolite is strongly carcinogenic and mutagenic. naphthylamine : A primary arylamine that is naphthalene substituted by an amino group at unspecified position. | naphthylamine | human xenobiotic metabolite |
| 4-fluoroaniline | 4-fluoroaniline : A primary arylamine that is the derivative of aniline in which the hydrogen at position 4 has been substituted by fluorine. It is used as an intermediate in the manufacture of pharmaceuticals, herbicides and plant growth regulators. 4-fluoroaniline: chemical intermediate manufactured by the Halex process; RN given refers to parent cpd; structure given in first source | fluoroaniline; primary arylamine | |
| plumbagin | plumbagin : A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 2 and 5 are substituted by methyl and hydroxy groups, respectively. plumbagin: a superoxide anion generator | hydroxy-1,4-naphthoquinone; phenols | anticoagulant; antineoplastic agent; immunological adjuvant; metabolite |
| palmatine | burasaine: structure in first source | berberine alkaloid; organic heterotetracyclic compound | plant metabolite |
| phenylhydrazine hydrochloride | phenylhydrazine hydrochloride : A hydrochloride resulting from the reaction of equimolar amounts of phenylhydrazine and hydrogen chloride. | hydrochloride | |
| epigallocatechin gallate | (-)-epigallocatechin 3-gallate : A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin. epigallocatechin gallate: a steroid 5alpha-reductase inhibitor and antimutagen in green tea (Camellia sinensis) | flavans; gallate ester; polyphenol | antineoplastic agent; antioxidant; apoptosis inducer; geroprotector; Hsp90 inhibitor; neuroprotective agent; plant metabolite |
| 4-fluorobenzylamine | |||
| delphinidin | delphinidin chloride : An anthocyanidin chloride that has delphinidin as the cationic counterpart. Paraffin: A mixture of solid hydrocarbons obtained from petroleum. It has a wide range of uses including as a stiffening agent in ointments, as a lubricant, and as a topical anti-inflammatory. It is also commonly used as an embedding material in histology. | anthocyanidin chloride | |
| 4-hydroxyquinoline | 4-quinolone : A quinolone that is 1,4-dihydroquinoline substituted by an oxo group at position 4. | monohydroxyquinoline; quinolone | |
| haloprogin | venenatine: RN given for (3beta,16beta,17beta,20alpha)-isomer; structure in first source | ||
| taxodione | taxodione: structure | diterpenoid | |
| coenzyme a | adenosine 3',5'-bisphosphate | coenzyme; Escherichia coli metabolite; mouse metabolite | |
| c.i. direct red 23 | C.I. Direct Red 23: azo dye; structure in first source | ||
| n-(4-(7-diethylamino-4-methylcoumarin-3-yl)phenyl)maleimide | 7-diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin : A member of the class of coumarins that is 2H-chromen-2-one substituted by 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl, methyl, and diethylamino groups at positions 3, 4 and 7, respectively. It is a thiol-reactive fluorescent dye. N-(4-(7-diethylamino-4-methylcoumarin-3-yl)phenyl)maleimide: structure given in first source | benzenes; coumarins; maleimides; tertiary amino compound | fluorescent dye |
| anacardic acid | anacardic acid : A hydroxybenzoic acid that is salicylic acid substituted by a pentadecyl group at position 6. It is a major component of cashew nut shell liquid and exhibits an extensive range of bioactivities. anacardic acid: isolated from Anacardium occidentale; monophenol monooxygenase inhibitor | hydroxy monocarboxylic acid; hydroxybenzoic acid | anti-inflammatory agent; antibacterial agent; anticoronaviral agent; apoptosis inducer; EC 2.3.1.48 (histone acetyltransferase) inhibitor; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; neuroprotective agent; plant metabolite |
| curcumin | curcumin : A beta-diketone that is methane in which two of the hydrogens are substituted by feruloyl groups. A natural dyestuff found in the root of Curcuma longa. Curcumin: A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes. | aromatic ether; beta-diketone; diarylheptanoid; enone; polyphenol | anti-inflammatory agent; antifungal agent; antineoplastic agent; biological pigment; contraceptive drug; dye; EC 1.1.1.205 (IMP dehydrogenase) inhibitor; EC 1.1.1.21 (aldehyde reductase) inhibitor; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.6.5.2 [NAD(P)H dehydrogenase (quinone)] inhibitor; EC 1.8.1.9 (thioredoxin reductase) inhibitor; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor; EC 3.5.1.98 (histone deacetylase) inhibitor; flavouring agent; food colouring; geroprotector; hepatoprotective agent; immunomodulator; iron chelator; ligand; lipoxygenase inhibitor; metabolite; neuroprotective agent; nutraceutical; radical scavenger |
| umi-77 | UMI-77: an Mcl-1 inhibitor; structure in first source | ||
| cyqualon | cyclovalone: is a synthetic curcumin derivative; structure in first source | ||
| guttiferone e | guttiferone E: isolated from the fruits of Garcinia pyrifera collected in Malaysia; structure in first source | ||
| 2-hydroxy-6-[(8Z,11Z)-pentadeca-8,11,14-trien-1-yl]benzoic acid | hydroxybenzoic acid | ||
| 6h-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetamide, 4-(4-chlorophenyl)-n-(4-hydroxyphenyl)-2,3,9-trimethyl-, (6s)- | organonitrogen heterocyclic compound; organosulfur heterocyclic compound | ||
| chetomin | |||
| cambogin | isogarcinol: has immunosuppresant activity; isolated from Garcinia mangostana; structure in first source | ||
| 3,4-dimethoxy-n-((2,2-dimethyl-2h-chromen-6-yl)methyl)-n-phenylbenzenesulfonamide | 3,4-dimethoxy-N-((2,2-dimethyl-2H-chromen-6-yl)methyl)-N-phenylbenzenesulfonamide: has antineoplastic activity; structure in first source | ||
| jq1 compound | carboxylic ester; organochlorine compound; tert-butyl ester; thienotriazolodiazepine | angiogenesis inhibitor; anti-inflammatory agent; antineoplastic agent; apoptosis inducer; bromodomain-containing protein 4 inhibitor; cardioprotective agent; ferroptosis inducer | |
| gsk525762a | molibresib: mimicks acetylated histones; structure in first source | benzodiazepine | |
| i-bet726 | |||
| 1,2-bis(isothiazol-5-yl)disulfane | 1,2-bis(isothiazol-5-yl)disulfane: structure in first source |