Gene Association: SMDT1
UniProt Search:
SMDT1 (PROTEIN_CODING)
Function Description: single-pass membrane protein with aspartate rich tail 1
found 24 associated metabolites with current gene based on the text mining result from the pubmed database.
Acridone
CONFIDENCE standard compound; INTERNAL_ID 2310 Acridone is an organic compound based on the acridine skeleton. Acridone has antibacterial, antimalarial, antiviral and anti neoplastic activities[1]. Acridone is an organic compound based on the acridine skeleton. Acridone has antibacterial, antimalarial, antiviral and anti neoplastic activities[1].
3-Hydroxybutyric acid
3-Hydroxybutyric acid (CAS: 300-85-6), also known as beta-hydroxybutanoic acid, is a typical partial-degradation product of branched-chain amino acids (primarily valine) released from muscle for hepatic and renal gluconeogenesis. This acid is metabolized by 3-hydroxybutyrate dehydrogenase (catalyzes the oxidation of 3-hydroxybutyrate to form acetoacetate, using NAD+ as an electron acceptor). The enzyme functions in nervous tissues and muscles, enabling the use of circulating hydroxybutyrate as a fuel. In the liver mitochondrial matrix, the enzyme can also catalyze the reverse reaction, a step in ketogenesis. 3-Hydroxybutyric acid is a chiral compound having two enantiomers, D-3-hydroxybutyric acid and L-3-hydroxybutyric acid, and is a ketone body. Like the other ketone bodies (acetoacetate and acetone), levels of 3-hydroxybutyrate in blood and urine are raised in ketosis. In humans, 3-hydroxybutyrate is synthesized in the liver from acetyl-CoA and can be used as an energy source by the brain when blood glucose is low. Blood levels of 3-hydroxybutyric acid levels may be monitored in diabetic patients to look for diabetic ketoacidosis. Persistent mild hyperketonemia is a common finding in newborns. Ketone bodies serve as an indispensable source of energy for extrahepatic tissues, especially the brain and lung of developing mammals. Another important function of ketone bodies is to provide acetoacetyl-CoA and acetyl-CoA for the synthesis of cholesterol, fatty acids, and complex lipids. During the early postnatal period, acetoacetate (AcAc) and beta-hydroxybutyrate are preferred over glucose as substrates for the synthesis of phospholipids and sphingolipids in accord with requirements for brain growth and myelination. Thus, during the first two weeks of postnatal development, when the accumulation of cholesterol and phospholipids accelerates, the proportion of ketone bodies incorporated into these lipids increases. On the other hand, an increased proportion of ketone bodies is utilized for cerebroside synthesis during the period of active myelination. In the lung, AcAc serves better than glucose as a precursor for the synthesis of lung phospholipids. The synthesized lipids, particularly dipalmitoylphosphatidylcholine, are incorporated into surfactant, and thus have a potential role in supplying adequate surfactant lipids to maintain lung function during the early days of life (PMID: 3884391). 3-Hydroxybutyric acid is found to be associated with fumarase deficiency and medium-chain acyl-CoA dehydrogenase deficiency, which are inborn errors of metabolism. 3-Hydroxybutyric acid is a metabolite of Alcaligenes and can be produced from plastic metabolization or incorporated into polymers, depending on the species (PMID: 7646009, 18615882). (R)-3-Hydroxybutyric acid is a butyric acid substituted with a hydroxyl group in the beta or 3 position. It is involved in the synthesis and degradation of ketone bodies. Like the other ketone bodies (acetoacetate and acetone), levels of beta-hydroxybutyrate are raised in the blood and urine in ketosis. Beta-hydroxybutyrate is a typical partial-degradation product of branched-chain amino acids (primarily valine) released from muscle for hepatic and renal gluconeogenesis This acid is metabolized by 3-hydroxybutyrate dehydrogenase (catalyzes the oxidation of D-3-hydroxybutyrate to form acetoacetate, using NAD+ as an electron acceptor). The enzyme functions in nervous tissues and muscles, enabling the use of circulating hydroxybutyrate as a fuel. In the liver mitochondrial matrix, the enzyme can also catalyze the reverse reaction, a step in ketogenesis. 3-Hydroxybutyric acid is a chiral compound having two enantiomers, D-3-hydroxybutyric acid and L-3-hydroxybutyric acid. In humans, beta-hydroxybutyrate is synthesized in the liver from acetyl-CoA, and can be used as an energy source by the brain when blood glucose is low. It can also be used for the synthesis of biodegradable plastics . [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID H022 (R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid has applications as a nutrition source and as a precursor for vitamins, antibiotics and pheromones[1][2]. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids[1]. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids[1].
N-Acetyltryptophan
N-Acetyl-L-tryptophan or N-Acetyltryptophan, belongs to the class of organic compounds known as N-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom. N-Acetyltryptophan can also be classified as an alpha amino acid or a derivatized alpha amino acid. Technically, N-Acetyltryptophan is a biologically available N-terminal capped form of the proteinogenic alpha amino acid L-tryptophan. N-acetyl amino acids can be produced either via direct synthesis of specific N-acetyltransferases or via the proteolytic degradation of N-acetylated proteins by specific hydrolases. N-terminal acetylation of proteins is a widespread and highly conserved process in eukaryotes that is involved in protection and stability of proteins (PMID: 16465618). About 85\\\\\% of all human proteins and 68\\\\\% of all yeast proteins are acetylated at their N-terminus (PMID: 21750686). Several proteins from prokaryotes and archaea are also modified by N-terminal acetylation. The majority of eukaryotic N-terminal-acetylation reactions occur through N-acetyltransferase enzymes or NAT’s (PMID: 30054468). These enzymes consist of three main oligomeric complexes NatA, NatB, and NatC, which are composed of at least a unique catalytic subunit and one unique ribosomal anchor. The substrate specificities of different NAT enzymes are mainly determined by the identities of the first two N-terminal residues of the target protein. The human NatA complex co-translationally acetylates N-termini that bear a small amino acid (A, S, T, C, and occasionally V and G) (PMID: 30054468). NatA also exists in a monomeric state and can post-translationally acetylate acidic N-termini residues (D-, E-). NatB and NatC acetylate N-terminal methionine with further specificity determined by the identity of the second amino acid. N-acetylated amino acids, such as N-acetyltryptophan can be released by an N-acylpeptide hydrolase from peptides generated by proteolytic degradation (PMID: 16465618). In addition to the NAT enzymes and protein-based acetylation, N-acetylation of free tryptophan can also occur. Many N-acetylamino acids, including N-acetyltryptophan are classified as uremic toxins if present in high abundance in the serum or plasma (PMID: 26317986; PMID: 20613759). Uremic toxins are a diverse group of endogenously produced molecules that, if not properly cleared or eliminated by the kidneys, can cause kidney damage, cardiovascular disease and neurological deficits (PMID: 18287557). N-Acetyltryptophan has also been used as a protein stabilizer. It prevents protein molecules from oxidative degradation by scavenging oxygen dissolved in protein solutions (PMID: 21903216 ). N-Acetyltryptophan has been identified as a catabolite of tryptophan generated by the gut microbiota. After absorption through the intestinal epithelium, tryptophan catabolites enter the bloodstream and are later excreted in the urine (PMID: 28916042). N-Acetyltryptophan is an inhibitor of cytochrome c release and an antagonist of the neurokinin 1 receptor (NK-1R). These inhibitory effects are thought have a useful role in neuroprotection. For instance, in mouse models of amyotrophic lateral sclerosis (ALS) the administration of N-Acetyltryptophan has been shown delay disease onset, extend survival, and ameliorate deterioration in motor performance ALS transgenic mice (PMID: 25986728). N-acetyltryptophan has been shown to significantly reduce blood-brain barrier permeability and improve functional outcome in rat models of traumatic brain injury (PMID: 29256408). N-Acetyltryptophan has also been shown to have a role in preventing hepatic ischemia-reperfusion injury. This is thought to occur through de-activation of the RIP2/caspase/IL-1beta signaling pathway (PMID: 31184936). D004791 - Enzyme Inhibitors > D011480 - Protease Inhibitors Ac-DL-Trp-OH is an endogenous metabolite. Ac-DL-Trp-OH is an endogenous metabolite. N-Acetyl-L-tryptophan is an endogenous metabolite.
Acrylic acid
Polyacrylic acid, sodium salt is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]") Monomer component of packaging materials for food. Acrylic acid is found in pineapple. D001697 - Biomedical and Dental Materials > D014014 - Tissue Adhesives KEIO_ID A041
Dimethylsulfide
Dimethylsulfide is the predominant volatile sulfur compound (VSC) in breadth malodor, a metabolite of suplatast tosilate (a dimethylsulphonium compound for the treatment of asthma) in patients that regularly take that medication. (PMID 14628896). Dimethylsulfide is a sulfur containing organic chemical compound with a disagreeable odor. In vapor form it is produced by cooking of certain vegetables, notably corn and cabbage, and seafood. It is also an indication of bacterial infection in malt production and brewing. It is a breakdown product of dimethylsulfoniopropionate, and is also produced by the bacterial metabolism of methanethiol. Dimethylsulfide in concentrated liquid form is insoluble and a flammable. This is a microbial metabolite that can be found in Bradyrhizobium, Cyanothece, Escherichia, Pseudomonas and Rhizobiaceae (PMID:25807229). Dimethyl sulfide (DMS) or methylthiomethane is an organosulfur compound with the formula (CH3)2S. Dimethyl sulfide is a water-insoluble flammable liquid that boils at 37 °C (99 °F) and has a characteristic disagreeable odor. It is a component of the smell produced from cooking of certain vegetables, notably maize, cabbage, beetroot and seafoods. It is also an indication of bacterial infection in malt production and brewing. It is a breakdown product of dimethylsulfoniopropionate (DMSP), and is also produced by the bacterial metabolism of methanethiol. Dimethyl sulfide is found in many foods, some of which are soft-necked garlic, chives, spearmint, and potato.
Malonic semialdehyde
Malonic semialdehyde is formed in the alternative pathway of propionate metabolism and in the catabolism of beta-alanine. Studies done on these pathways in cultured cells from a patient with mitochondrial malonyl-CoA decarboxylase deficiency show that malonic semialdehyde is directly converted into acetyl-CoA in man. (PMID: 6418146) [HMDB]. Malonic semialdehyde is found in many foods, some of which are spinach, rocket salad (sspecies), pepper (c. pubescens), and bilberry. Malonic semialdehyde is formed in the alternative pathway of propionate metabolism and in the catabolism of beta-alanine. Studies done on these pathways in cultured cells from a patient with mitochondrial malonyl-CoA decarboxylase deficiency show that malonic semialdehyde is directly converted into acetyl-CoA in man. (PMID: 6418146).
Phosphoglycolic acid
Phosphoglycolic acid, also known as 2-phosphoglycolate or (phosphonooxy)-acetate, is a member of the class of compounds known as monoalkyl phosphates. Monoalkyl phosphates are organic compounds containing a phosphate group that is linked to exactly one alkyl chain. Phosphoglycolic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Phosphoglycolic acid can be found in a number of food items such as arrowhead, rocket salad (sspecies), roselle, and natal plum, which makes phosphoglycolic acid a potential biomarker for the consumption of these food products. Phosphoglycolic acid can be found primarily throughout most human tissues. Phosphoglycolic acid exists in all living species, ranging from bacteria to humans. Phosphoglycolic acid is a substrate for triose-phosphate isomerase. This compound belongs to the family of Organophosphate Esters. These are organic compounds containing phosphoric acid ester functional group.
L-histidinol-phosphate
L-histidinol-phosphate is a member of the class of compounds known as phosphoethanolamines. Phosphoethanolamines are compounds containing a phosphate linked to the second carbon of an ethanolamine. L-histidinol-phosphate is soluble (in water) and a moderately acidic compound (based on its pKa). L-histidinol-phosphate can be found in a number of food items such as sorghum, devilfish, spearmint, and deerberry, which makes L-histidinol-phosphate a potential biomarker for the consumption of these food products. L-histidinol-phosphate exists in E.coli (prokaryote) and yeast (eukaryote).
Dimethylpropiothetin
Dimethylsulfoniopropionate, also known as dimethylpropiothetin or S-dimethylsulfonium propionic acid, is a member of the class of compounds known as carboxylic acid salts. Carboxylic acid salts are ionic derivatives of carboxylic acid. Dimethylsulfoniopropionate is slightly soluble (in water) and a weakly acidic compound (based on its pKa). Dimethylsulfoniopropionate can be found in a number of food items such as sugar apple, american butterfish, coriander, and oxheart cabbage, which makes dimethylsulfoniopropionate a potential biomarker for the consumption of these food products. Dimethylsulfoniopropionate (DMSP), is an organosulfur compound with the formula (CH3)2S+CH2CH2COO−. This zwitterionic metabolite can be found in marine phytoplankton, seaweeds, and some species of terrestrial and aquatic vascular plants. It functions as an osmolyte as well as several other physiological and environmental roles have also been identified. DMSP was first identified in the marine red alga Polysiphonia fastigiata by Frederick Challenger and Margaret Simpson (later Dr. Whitaker) . D005765 - Gastrointestinal Agents > D000897 - Anti-Ulcer Agents
Acridone
Acridone is a member of the class of acridines that is 9,10-dihydroacridine substituted by an oxo group at position 9. It is a member of acridines and a cyclic ketone. Acridone is a natural product found in Thamnosma montana with data available. Acridone is an organic compound based on the acridine skeleton. Acridone has antibacterial, antimalarial, antiviral and anti neoplastic activities[1]. Acridone is an organic compound based on the acridine skeleton. Acridone has antibacterial, antimalarial, antiviral and anti neoplastic activities[1].
DL-beta-Hydroxybutyric acid
(R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid has applications as a nutrition source and as a precursor for vitamins, antibiotics and pheromones[1][2].
ACRYLIC ACID
A alpha,beta-unsaturated monocarboxylic acid that is ethene substituted by a carboxy group. D001697 - Biomedical and Dental Materials > D014014 - Tissue Adhesives It is used as a food additive .
Acridone
Acridone is an organic compound based on the acridine skeleton. Acridone has antibacterial, antimalarial, antiviral and anti neoplastic activities[1]. Acridone is an organic compound based on the acridine skeleton. Acridone has antibacterial, antimalarial, antiviral and anti neoplastic activities[1].
dimethyl sulfide
A methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae.
(R)-3-Hydroxybutyric acid
The R-enantiomer of 3-hydroxybutyric acid. Involved in the synthesis and degradation of ketone bodies, it can be used as an energy source by the brain during hypoglycaemia, and for the synthesis of biodegradable plastics. It is a sex pheremone in the European spider Linyphia triangularis. (R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid has applications as a nutrition source and as a precursor for vitamins, antibiotics and pheromones[1][2].
Dimethylpropiothetin
D005765 - Gastrointestinal Agents > D000897 - Anti-Ulcer Agents
Acetyl-L-tryptophan
A N-acetyl-L-amino acid that is the N-acetyl derivative of L-tryptophan. D004791 - Enzyme Inhibitors > D011480 - Protease Inhibitors N-Acetyl-L-tryptophan is an endogenous metabolite.
