Classification Term: 2449
Carboximidic acids (ontology term: CHEMONTID:0002484)
Organic acids with the general formula RC(=N)-OH (R=H, organic group)." []
found 24 associated metabolites at sub_class metabolite taxonomy ontology rank level.
Ancestor: Carboximidic acids and derivatives
Child Taxonomies: Isoureas, Cyclic carboximidic acids
N8-Acetylspermidine
N8-Acetylspermidine is a polyamine. The polyamines, found in virtually all living organisms, are a ubiquitous group of compounds that appear to play a vital role in many cellular processes involving nucleic acids including cell growth and differentiation. The polyamines, found in virtually all living organisms, are a ubiquitous group of compounds that appear to play a vital role in many cellular processes involving nucleic acids including cell growth and differentiation. Acetylation on the terminal nitrogen adjacent to the 4-carbon chain produces N8-acetylspermidine. This reaction is catalyzed by spermidine N8-acetyltransferase and does not result in the conversion of spermidine to putrescine but, instead, the product undergoes deacetylation. This acetyltransferase appears to be associated with chromatin in the cell nucleus and has been reported to be the same as (or related to) the enzyme(s) responsible for histone acetylation. N8-Acetylspermidine does not accumulate in tissues but rather appears to be rapidly deacetylated back to spermidine by a relatively specific cytosolic deacetylase, N8-acetylspermidine deacetylase. The function of this N8-acetylation/deacetylation pathway in cellular processes is not understood clearly, but several observations have suggested a role in cell growth and differentiation. (PMID: 12093478) [HMDB] N8-Acetylspermidine is a polyamine. The polyamines, found in virtually all living organisms, are a ubiquitous group of compounds that appear to play a vital role in many cellular processes involving nucleic acids including cell growth and differentiation. Acetylation on the terminal nitrogen adjacent to the 4-carbon chain produces N8-acetylspermidine. This reaction is catalyzed by spermidine N8-acetyltransferase and does not result in the conversion of spermidine to putrescine. Instead, the product undergoes deacetylation. This acetyltransferase appears to be associated with chromatin in the cell nucleus and has been reported to be the same as (or related to) the enzyme(s) responsible for histone acetylation. N8-Acetylspermidine does not accumulate in tissues but rather appears to be rapidly deacetylated back to spermidine by a relatively specific cytosolic deacetylase, N8-acetylspermidine deacetylase. The function of this N8-acetylation/deacetylation pathway in cellular processes is not understood clearly, but several observations have suggested a role in cell growth and differentiation (PMID: 12093478). KEIO_ID A112
N-Acetylputrescine
N-Acetylputrescine is a polyamine commonly occurring excreted in normal human urine (PMID 7775374). N-Acetylputrescine is the most abundant of all polyamines both in normal individuals and in patients with leukemia (PMID 9464484). N-Acetylputrescine is the N-acetylated form of the naturally occurring polyamine called putrescine. The N-acetylation is mediated by the enzyme diamine N-acetyltransferase. Putrescine is related to cadaverine (another polyamine). Both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. Putrescine and cadaverine are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. Putrescine is also found in semen. Putrescine attacks s-adenosyl methionine and converts it to spermidine. Spermidine in turn attacks another s-adenosyl methionine and converts it to spermine. Putrescine is synthesized in small quantities by healthy living cells by the action of ornithine decarboxylase. N-Acetylputrescine can be found in Corynebacterium as well (PMID:25919117). N-Acetylputrescine is a polyamine commonly occurring excreted in normal human urine (PMID 7775374). N-Acetylputrescine is the most abundant of all polyamines both in normal individuals and in patients with leukemia (PMID 9464484). N-Acetylputrescine is the N-acetylated form of the naturally occurring polyamine called putrescine. The N-acetylation is mediated by the enzyme diamine N-acetyltransferase. Putrescine is related to cadaverine (another polyamine). Both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. Putrescine and cadaverine are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. Putrescine is also found in semen. Putrescine attacks s-adenosyl methionine and converts it to spermidine. Spermidine in turn attacks another s-adenosyl methionine and converts it to spermine. Putrescine is synthesized in small quantities by healthy living cells by the action of ornithine decarboxylase. [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID A051
Palmitoylethanolamide
N-Palmitoylethanolamide (PEA) is present in the tissues of most mammals. It was initially described as an agonist of the type 2 cannabinoid receptor (CB2), although it is now universally recognized that PEA is in fact incapable of binding to cannabinoid receptors, or at least not to the known receptors. In addition to its anti-inflammatory activity, PEA also produces analgesia, neuroprotection, and possesses anti-epileptic properties. It also reduces gastrointestinal motility and cancer cell proliferation, as well as protecting the vascular endothelium in the ischemic heart. The physiological stimuli that regulate PEA levels in mammalian tissues are largely unknown, however, multiple studies indicate that this lipid accumulates during cellular stress, particularly following tissue injury. For example, PEA increases post-mortem in the pig brain. Similar elevations in PEA levels have been observed in the ischemic brain and PEA is also up-regulated in response to ultraviolet-B irradiation in mouse epidermal cells. Adipose tissue is highly implicated in the systemic secretion of IL-6 and leptin, and human mature adipocytes are able to secrete large quantity of PEA. Human adipose tissue can be subjected to modulation of its inflammatory state by lipopolysaccharide (LPS). LPS strongly inhibits adipose cell leptin release, with PEA acting as a potentiator of this inhibitory effect. These actions are not linked to a reduction in leptin gene transcription. Thus, PEA does not have an anti-inflammatory role in the secretion of IL-6 via NFkappaB at the adipocyte level, but instead seems to act at the heart of the LPS-stimulated pathway, which, independently of NFkappaB, inhibits the secretion of leptin. (PMID: 16884908). D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D063385 - Cannabinoid Receptor Modulators D018377 - Neurotransmitter Agents > D063385 - Cannabinoid Receptor Modulators > D063386 - Cannabinoid Receptor Agonists Isolated from soybean lecithin, egg yolk and peanut meal. Palmidrol is found in eggs, pulses, and nuts. C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D000890 - Anti-Infective Agents > D000998 - Antiviral Agents D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents Same as: D08328 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Palmitoylethanolamide (Palmidrol) is an active endogenous compound which can used for preventing virus infection of the respiratory tract.
Octadecanamide
Octadecanamide is a fatty amide of stearic acid. It has a role as a metabolite. It is functionally related to an octadecanoic acid. Stearamide. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=124-26-5 (retrieved 2024-07-12) (CAS RN: 124-26-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Stearamide is a primary fatty acid amide. Stearamide displays cytotoxic and ichthytoxic activity[1].
Formamide
Formamide, also known as methanamide or ameisensaeureamid, belongs to the class of organic compounds known as carboximidic acids. These are organic acids with the general formula RC(=N)-OH (R=H, organic group). Formamide, in its pure state, has been used as an alternative solvent for the electrostatic self-assembly of polymer nanofilms. Formamide exists in all living organisms, ranging from bacteria to humans. Formamide has been detected, but not quantified in several different foods, such as hyssops, rose hips, asian pears, brassicas, and green bell peppers. It has been used as a softener for paper and fiber. Inhalation of large amounts of formamide vapor may require medical attention. In the past, formamide was produced by treating formic acid with ammonia, which produces ammonium formate, which in turn yields formamide upon heating:HCOOH + NH3 → HCOO−NH+4HCOO−NH+4 → HCONH2 + H2O. Formamide is also generated by aminolysis of ethyl formate: HCOOCH2CH3 + NH3 → HCONH2 + CH3CH2OH. The current industrial process for the manufacture of formamide involves either the carbonylation of ammonia: CO + NH3 → HCONH2. An alternative two-stage process involves the ammonolysis of methyl formate, which is formed from carbon monoxide and methanol: CO + CH3OH → HCOOCH3HCO2CH3 + NH3 → HCONH2 + CH3OH. Formamide is used in the industrial production of hydrogen cyanide. Formamide has been shown to exhibit hematoxicity in animals and is considered hazardous by prolonged exposure through inhalation, oral intake and dermal absorption. Formamide is a metabolite used for biological monitoring of workers exposed to N-N-dimethylformamide (DMF).(PMID 7622279).
N1-Acetylspermidine
N1-Acetylspermidine is a polyamine. In many organisms, polyamines originate from L-ornithine and methionine. Ornithine decarboxylase (EC 4.1.1.17), a key enzyme in polyamine metabolism, decarboxylates L-ornithine to yield putrescine which is then converted to higher polyamines spermidine and spermine by successive addition of aminopropyl groups derived from decarboxylated S-adenosylmethionine. Aliphatic polyamines occur ubiquitously in organisms and have important functions in the stabilization of cell membranes, biosynthesis of informing molecules, cell growth and differentiation, as well as adaptation to osmotic, ionic, pH and thermal stress. These cationic substances are implicated in multiple functions, therefore it is not surprising that intracellular levels of polyamines are regulated by different mechanisms. The inhibition of polyamine metabolism has important pharmacological and therapeutic implications for the control of physiological processes, reproduction, cancer and parasitic diseases. Recent reports have suggested the idea that parasites with an high turnover of Ornithine Decarboxilase (ODC) are resistant to Difluoromethyl ornithine (DFMO, the irreversible inhibitor of ornithine decarboxylase) because they always contain a fraction of newly synthesized and active enzyme, therefore not DFMO inhibited, sufficient to produce small amounts of putrescine rapidly converted into spermidine, which can support protozoan proliferation. DFMO has proved to be curative in trypanosomiasis, coccidiosis, and certain other protozoan infections. (PMID: 15490259). N1-Acetylspermidine is a polyamine. In many organisms, polyamines originate from L-ornithine and methionine. Ornithine decarboxylase (EC 4.1.1.17), a key enzyme in polyamine metabolism, decarboxylates L-ornithine to yield putrescine which is then converted to higher polyamines spermidine and spermine by successive addition of aminopropyl groups derived from decarboxylated S-adenosylmethionine.
Acrylamide
Acrylamide (or acrylic amide) is an organic compound with the chemical formula CH2=CHC(O)NH2. It is a white odorless solid, soluble in water and several organic solvents. It is produced industrially as a precursor to polyacrylamides, which find many uses as water-soluble thickeners and flocculation agents. It is highly toxic, likely to be carcinogenic,and partly for that reason it is mainly handled as an aqueous solution. It is a chemical used in many industries around the world and more recently was found to form naturally in foods cooked at high temperatures. Acrylamide is a neurotoxicant, reproductive toxicant, and carcinogen in animal species. Only the neurotoxic effects have been observed in humans and only at high levels of exposure in occupational settings. The mechanism underlying neurotoxic effects of ACR may be basic to the other toxic effects seen in animals. This mechanism involves interference with the kinesin-related motor proteins in nerve cells or with fusion proteins in the formation of vesicles at the nerve terminus and eventual cell death. Neurotoxicity and resulting behavioral changes can affect reproductive performance of ACR-exposed laboratory animals with resulting decreased reproductive performance. Further, the kinesin motor proteins are important in sperm motility, which could alter reproduction parameters. Effects on kinesin proteins could also explain some of the genotoxic effects on ACR. These proteins form the spindle fibers in the nucleus that function in the separation of chromosomes during cell division. This could explain the clastogenic effects of the chemical noted in a number of tests for genotoxicity and assays for germ cell damage. Other mechanisms underlying ACR-induced carcinogenesis or nerve toxicity are likely related to an affinity for sulfhydryl groups on proteins. Binding of the sulfhydryl groups could inactive proteins/enzymes involved in DNA repair and other critical cell functions. Direct interaction with DNA may or may not be a major mechanism for cancer induction in animals. The DNA adducts that form do not correlate with tumor sites and ACR is mostly negative in gene mutation assays except at high doses that may not be achievable in the diet. All epidemiologic studies fail to show any increased risk of cancer from either high-level occupational exposure or the low levels found in the diet. In fact, two of the epidemiologic studies show a decrease in cancer of the large bowel. A number of risk assessment studies were performed to estimate increased cancer risk. The results of these studies are highly variable depending on the model. There is universal consensus among international food safety groups in all countries that examined the issue of ACR in the diet that not enough information is available at this time to make informed decisions on which to base any regulatory action. Too little is known about levels of this chemical in different foods and the potential risk from dietary exposure. Avoidance of foods containing ACR would result in worse health issues from an unbalanced diet or pathogens from under cooked foods. There is some consensus that low levels of ACR in the diet are not a concern for neurotoxicity or reproductive toxicity in humans, although further research is need to study the long-term, low-level cumulative effects on the nervous system. Any relationship to cancer risk from dietary exposure is hypothetical at this point and awaits more definitive studies. (PMID:17492525). Polyacrylamides are used as flocculants as a filtration aid in the treatment of waste water and expressed sugar juices and as clarifying agents in a variety of food products. Asparagine-derived Maillard production found in trace amounts in a variety of cooked and processed foods. Subject of a food scare in 2001-2 but concern may have been overstated.
N1,N12-Diacetylspermine
N1,N12-Diacetylspermine is a polyamine commonly occurring in normal human urine (PMID 7775374). It has been reported that urinary N1,N12-Diacetylspermine can be used as a marker to efficiently detect colorectal and breast cancers at early stages (PMID 15837752). N1,N12-Diacetylspermine has been identified in the human placenta (PMID: 32033212). N1,N12-Diacetylspermine is a polyamine commonly occurring in normal human urine (PMID 7775374). It has been reported that urinary N1,N12-Diacetylspermine can be used as a marker to efficiently detect colorectal and breast cancers at early stages (PMID 15837752). [HMDB]
Acetamide
Acetamide (or acetic acid amide or ethanamide), CH3CONH2, the amide of acetic acid, is a white crystalline solid in pure form. It is produced by dehydrating ammonium acetate:. Acetamide is found in red beetroot. Acetamide is found in red beetroot. Acetamide (or acetic acid amide or ethanamide), CH3CONH2, the amide of acetic acid, is a white crystalline solid in pure form. It is produced by dehydrating ammonium acetate
N-Methylformamide
N-Methylformamide (NMF) is one of the two major urinary biomarkers of exposure to N,N-Dimethylformamide (DMF), a compound widely used in industries because of its extensive miscibility with water and solvents. Metabolism of NMF results in the formation of N-methylcarbamoyl adducts at the N-terminal valine and lysine in blood protein globin. (PMID: 17254560, 17254560, 16289959) [HMDB] N-Methylformamide (NMF) is one of the two major urinary biomarkers of exposure to N,N-Dimethylformamide (DMF), a compound widely used in industries because of its extensive miscibility with water and solvents. Metabolism of NMF results in the formation of N-methylcarbamoyl adducts at the N-terminal valine and lysine in blood protein globin. (PMID: 17254560, 17254560, 16289959). C274 - Antineoplastic Agent > C2122 - Cell Differentiating Agent > C1934 - Differentiation Inducer C274 - Antineoplastic Agent > C798 - Radiosensitizing Agent D011838 - Radiation-Sensitizing Agents D000970 - Antineoplastic Agents
Neoherculin
Neoherculin is found in herbs and spices. Neoherculin is a constituent of Zanthoxylum species Constituent of Zanthoxylum subspecies Neoherculin is found in herbs and spices.
N-Ethylacetamide
N-Ethylacetamide is found in alcoholic beverages. N-Ethylacetamide is found in tea and win
Hexamethylene bisacetamide
Hexamethylene bisacetamide belongs to the family of Imines. These are compounds containing an imine functional group, with the general structure RN=CR2 (R = H, hydrocarbyl). C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent C274 - Antineoplastic Agent > C2122 - Cell Differentiating Agent > C1934 - Differentiation Inducer D006401 - Hematologic Agents > D006397 - Hematinics D000970 - Antineoplastic Agents
2,4,8-Eicosatrienoic acid isobutylamide
2,4,8-Eicosatrienoic acid isobutylamide is an alkaloid from Piper officinarum (Javanese long pepper Alkaloid from Piper officinarum (Javanese long pepper).
apo-[3-methylcrotonoyl-CoA:carbon-dioxide ligase (ADP-forming)]
Apo-[3-methylcrotonoyl-coa:carbon-dioxide ligase (adp-forming)] is part of the Biotin metabolism pathway. It is a substrate for: Biotin--protein ligase.
glycinamide
glycinamide, also known as AMINOMETHYLAMIDE or 2-amino-Acetamide, is classified as a member of the Carboximidic acids. Carboximidic acids are organic acids with the general formula RC(=N)-OH (R=H, organic group). glycinamide is considered to be soluble (in water) and relatively neutral
N-(2-Hydroxyethyl)eicosa-5,8,11,14-tetraenamide
Valpromide
N - Nervous system > N03 - Antiepileptics > N03A - Antiepileptics > N03AG - Fatty acid derivatives C78272 - Agent Affecting Nervous System > C264 - Anticonvulsant Agent D002491 - Central Nervous System Agents > D000927 - Anticonvulsants
