Exact Mass: 188.1201
Exact Mass Matches: 188.1201
Found 241 metabolites which its exact mass value is equals to given mass value 188.1201,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
Glycylleucine
Glycylleucine is a dipeptide composed of glycine and leucine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. It appears to be a common substrate for glycyl-leucine dipeptidase. A dipeptide that appears to be a common substrate for glycyl-leucine dipeptidase. [HMDB] KEIO_ID G071 Glycyl-l-leucine is a dipeptide that can be a common substrate for?glycyl-leucine?dipeptidase.
Nα-Acetyl-L-lysine
N-epsilon-Acetyl-L-lysine also known as Nepsilon-Acetyllysine or N6-Acetyllysine, 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 one of its nitrogen atoms. N-epsilon-Acetyl-L-lysine can also be classified as an alpha amino acid or a derivatized alpha amino acid. Technically, N-epsilon-Acetyl-L-lysine is a biologically available sidechain, N-capped form of the proteinogenic alpha amino acid L-lysine. Unlike L-lysine, acetylated lysine derivatives such as N-epsilon-Acetyl-L-lysine are zwitterionic compounds. These are molecules that contains an equal number of positively- and negatively-charged functional groups. N-epsilon-Acetyl-L-lysine is found naturally in eukaryotes ranging from yeast to plants to humans. N-acetyl amino acids can be produced either via direct synthesis of specific N-acetyltransferases or via the proteolytic degradation of N-acetylated proteins (often histones) by specific hydrolases. N-epsilon-Acetyl-L-lysine can be biosynthesized from L-lysine and acetyl-CoA via the enzyme known as Lysine N-acetyltransferase. Post-translational lysine-acetylation is one of two major modifications of lysine residues in various proteins – either N-terminal or N-alpha acetylation or N6 (sidechain) acetylation. Side-chain acetylation of specific lysine residues in the N-terminal domains of core histones is a biochemical marker of active genes. Acetylation is now known to play a major role in eukaryotic transcription. Specifically, acetyltransferase enzymes that act on particular lysine side chains of histones and other proteins are intimately involved in transcriptional activation. By modifying chromatin proteins and transcription-related factors, these acetylases are believed to regulate the transcription of many genes. The best-characterized mechanism is acetylation, catalyzed by histone acetyltransferase (HAT) enzymes. HATs function enzymatically by transferring an acetyl group from acetyl-coenzyme A (acetyl-CoA) to the amino group of certain lysine side chains within a histones basic N-terminal tail region. Within a histone octamer, these regions extend out from the associated globular domains, and in the context of a nucleosome, they are believed to bind the DNA through charge interactions (positively charged histone tails associated with negatively charged DNA) or mediate interactions between nucleosomes. Lysine acetylation, which neutralizes part of a tail regions positive charge, is postulated to weaken histone-DNA or nucleosome-nucleosome interactions and/or signal a conformational change, thereby destabilizing nucleosome structure or arrangement and giving other nuclear factors, such as the transcription complex, more access to a genetic locus. In agreement with this is the fact that acetylated chromatin has long been associated with states of transcriptional activation. Specific recognition of N6-acetyl-L-lysine is a conserved function of all bromodomains found in different proteins, recognized as an emerging intracellular signalling mechanism that plays critical roles in regulating gene transcription, cell-cycle progression, apoptosis, DNA repair, and cytoskeletal organization (PMID: 9169194 , 10827952 , 17340003 , 16247734 , 9478947 , 10839822 ). N-acetylated amino acids, such as N-epsilon-Acetyl-L-lysine can be released by an N-acylpeptide hydrolase from histones going through proteolytic degradation (PMID: 16465618). Many N-acetylamino acids 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). Isolated from sugarbeet (Beta vulgaris) KEIO_ID A174 Nepsilon-Acetyl-L-lysine is a derivative of the amino acid lysine.
N2-acetyllysine
N-alpha-Acetyl-L-lysine also known as Nalpha-Acetyllysine, 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-alpha-Acetyl-L-lysine can also be classified as an alpha amino acid or a derivatized alpha amino acid. Technically, N-alpha-Acetyl-L-lysine is a biologically available N-terminal capped form of the proteinogenic alpha amino acid L-lysine. Unlike L-lysine, acetylated lysine derivatives such as N-alpha-Acetyl-L-lysine are zwitterionic compounds. These are molecules that contains an equal number of positively- and negatively-charged functional groups. N-alpha-Acetyl-L-lysine is found naturally in eukaryotes ranging from yeast to plants to humans. 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-alpha-Acetyl-L-lysine 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 lysine can also occur. In particular, N-alpha-Acetyl-L-lysine can be biosynthesized from L-lysine and acetyl-CoA via the enzyme known as Lysine N-acetyltransferase. Individuals with hyperlysinaemia due to L-lysine alpha-ketoglutarate reductase deficiency will excrete high levels of N-alpha-Acetyl-L-lysine in their urine (PMID: 116084). L-lysine alpha-ketoglutarate reductase deficiency, if untreated, can lead to neurological and behavioral deficits (PMID: 116084). Many N-acetylamino acids 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). Acetyl-L-lysine is an endogenous metabolite.
Homo-L-arginine
L-homoarginine, also known as N6-(aminoiminomethyl)-L-lysine or N6-amidino-L-lysine, is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. More specifically, L-homoarginine is a naturally occurring, non-proteinogenic, cationic amino acid. It is formed in the liver in a reaction catalyzed by L-arginine:glycine amidinotransferase (AGAT) when transferring the amidino group from arginine to lysine. It is an alternative substrate for nitric oxide (NO) synthase. L-homoarginine increases the availability of NO and thereby affects endothelial function. High homoarginine levels may exert positive actions that are relevant to cardiovascular health, including enhanced endothelial function, inhibition of platelet aggregation and stimulation of insulin secretion (PMID: 30866658). Recent studies have demonstrated that low serum homoarginine levels are a strong predictor of cardiovascular mortality (PMID: 24583919). L-homoarginine is a substrate of the human cationic amino acid CAT1 [solute carrier family 7 (SLC7A1)], CAT2A (SLC7A2A) or CAT2B (SLC7A2B) (PMID: 28684763). According to published human metabolomic data, L-homoarginine can be found primarily in blood, cerebrospinal fluid (CSF), and urine, as well as in human intestinal and testes tissues. Moreover, L-homoarginine has been found to be associated with liver cirrhosis and the genetic disorder, hyperargininemia. Homoarginine is an organ-specific uncompetitive inhibitor of human liver and bone alkaline phosphohydrolase (PMID: 5063678). H-HoArg-OH, a homologue arginine, is a strong inhibitor of human bone and liver alkaline phosphatase.
L-Targinine
L-Targinine is found in pulses. L-Targinine is isolated from broad bean seed L-Targinine has been identified in the human placenta (PMID: 32033212). C471 - Enzyme Inhibitor > C29574 - Nitric Oxide Synthase Inhibitor D004791 - Enzyme Inhibitors
Alanylvaline
Alanylvaline is a dipeptide composed of alanine and valine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis.
Glycyl-Isoleucine
Glycyl-Isoleucine is a dipeptide composed of glycine and isoleucine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.
Leucyl-Glycine
Leucyl-Glycine is a dipeptide composed of leucine and glycine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.
5-Methyl-2-phenyl-2-hexenal
5-Methyl-2-phenyl-2-hexenal is found in cocoa and cocoa products. 5-Methyl-2-phenyl-2-hexenal is a constituent of various plant species and cooked foods e.g. cocoa beans and roasted peanut. 5-Methyl-2-phenyl-2-hexenal is a flavouring ingredient Constituent of various plant subspecies and cooked foods e.g. cocoa beans and roasted peanut. Flavouring ingredient. 5-Methyl-2-phenyl-2-hexenal is found in cocoa and cocoa products and nuts.
Valylalanine
Valylalanine is a dipeptide composed of valine and alanine. It is an incomplete breakdown product of protein digestion or protein catabolism. Dipeptides are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond. Some dipeptides are known to have physiological or cell-signalling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis.
Isoleucyl-Glycine
Isoleucyl-Glycine is a dipeptide composed of isoleucine and glycine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.
2-Butyl-3-phenyl-2-propen-1-al
2-Butyl-3-phenyl-2-propen-1-al is a food flavorant.
3-Buten-2-one 1-(2,3,6-trimethyl phenyl)
3-buten-2-one 1-(2,3,6-trimethyl phenyl) belongs to the family of Toluenes. These are compounds containing a benzene ring which bears a methane group.
1-H-Inden-1-one,2,3-dihydro-3,3,5,6-tetramethyl
1-H-inden-1-one,2,3-dihydro-3,3,5,6-tetramethyl belongs to the family of Indanones. These are compounds containing an indane ring bearing a ketone group.
(2S)-2-Amino-5-(diaminomethylideneamino)-4-methylpentanoic acid
(3Z)-4-(2,3,6-trimethylphenyl)-3-buten-2-one
Flavouring compound [Flavornet]
(E)-1,5-Tridecadiene-7,9-diyn-4-ol|trans-Trideca-1,5-dien-7,9-diin-4-ol
@2,3-dihydro-aethusanol-B|Dihydroaethusanol B|trideca-8t,10t-diene-4,6-diyn-1-ol
AC-Lys-OH
An acetyl-L-lysine where the acetyl group is located at the N(2)-posiiton. N-Alpha-acetyllysine is a N-acetylated amino acid. It is a normal constituent of human urine with concentrations in normal samples too small to allow its routine detection; however, it has been found at increased levels in the urine of a patient with aminoacylase I deficiency. (PMID 16274666) [HMDB] Acetyl-L-lysine is an endogenous metabolite.
N6-acetyl-L-lysine
An N(6)-acyl-L-lysine where the N(6)-acyl group is specified as acetyl. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; DTERQYGMUDWYAZ-ZETCQYMHSA-N_STSL_0232_N-epsilon-Acetyl-L-lysine (N6)_8000fmol_190114_S2_LC02MS02_018; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. Nepsilon-Acetyl-L-lysine is a derivative of the amino acid lysine.
Homoarginine
An L-lysine derivative that is the L-enantiomer of homoarginine. Homoarginine is a guanidino compounds of guanidinoethanesulfonic acid. It is an organ-specific uncompetitive inhibitor of human liver and bone alkaline phosphohydrolase. (PMID 5063678). L-Homoarginine is found in grass pea. H-HoArg-OH, a homologue arginine, is a strong inhibitor of human bone and liver alkaline phosphatase.
Glycylleucine
Annotation level-3 Glycyl-l-leucine is a dipeptide that can be a common substrate for?glycyl-leucine?dipeptidase.
N-Alpha-acetyllysine
MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; VEYYWZRYIYDQJM-ZETCQYMHSA-N_STSL_0236_N-Alpha-acetyllysine_1000fmol_190403_S2_LC02MS02_049; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I.
((1-ETHOXY-2-METHYLPROP-1-EN-1-YL)OXY)TRIMETHYLSILANE
Acetic acid,2-(trimethylsilyl)-, 1,1-dimethylethyl ester
(S)-2-(TERT-BUTYL-DIMETHYL-SILANYLOXY)-PROPIONALDEHYDE
(R)-2-(TERT-BUTYL-DIMETHYL-SILANYLOXY)-PROPIONALDEHYDE
butyl(3-carboxypropyl)nitrosamine
D009676 - Noxae > D002273 - Carcinogens
1-H-Inden-1-one,2,3-dihydro-3,3,5,6-tetramethyl
1-H-inden-1-one,2,3-dihydro-3,3,5,6-tetramethyl belongs to the family of Indanones. These are compounds containing an indane ring bearing a ketone group.
(2S)-2-[(2-azaniumylacetyl)amino]-4-methylpentanoate
3-Methylarginine
A non-proteinogenic alpha-amino acid that is arginine carrying a methyl group at position 3. It is a rare amino acid produced by Pseudomonas syringae syringae, with a strong toxicity against Pseudomonas syringae glycinea, two soybean pathogens.
{[(2S)-2-azaniumyl-4-methylpentanoyl]amino}acetate
(2S)-2-Amino-5-(diaminomethylideneamino)-4-methylpentanoic acid
(2S)-2-ammonio-5-(N-methylcarbamimidamido)pentanoate
5-methyl-L-arginine
A non-proteinogenic L-alpha-amino acid that is L-arginine substituted by a methyl group at position 5.
H-Gly-Leu-OH
Glycyl-l-leucine is a dipeptide that can be a common substrate for?glycyl-leucine?dipeptidase.
Tilarginine
C471 - Enzyme Inhibitor > C29574 - Nitric Oxide Synthase Inhibitor D004791 - Enzyme Inhibitors
6-acetamido-3-aminohexanoic acid
A member of the class of beta-amino acids that is the N(6)-acetyl derivative of 3,6-diaminohexanoic acid.
(S)-6-acetamido-3-aminohexanoic acid
A 6-acetamido-3-aminohexanoic acid in which the chiral centre at position 3 has S-configuration.
(S)-6-acetamido-3-aminohexanoic acid zwitterion
A 6-acetamido-3-aminohexanoic acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of (3S)-6-acetamido-3-aminohexanoic acid; major species at pH 7.3.
N(2)-acetyl-L-lysine zwitterion
An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of N(2)-acetyl-L-lysine; major species at pH 7.3.
N(5)-methyl-L-arginine
A non-proteinogenic L-alpha-amino acid that is L-arginine substituted by a methyl group at N(5)-position.
N(omega)-methyl-L-arginine zwitterion
The zwitterion obtained from N(omega)-methyl-L-arginine by transfer of a proton from the carboxylic acid group to the alpha-amino group.
N-isopropyl-L-glutamine
A N(5)-alkylglutamine where the alkyl group is isopropyl.
glycyl-L-leucine zwitterion
A dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Gly-Leu. Major species at pH 7.3.
N(6)-acetyl-L-lysine zwitterion
An amino acid zwitterion obtained via transfer of a proton from the carboxy to the amino group of N(6)-acetyl-L-lysine; major species at pH 7.3.
Ala-Val zwitterion
A dipeptide zwitterion resulting from the transfer of a proton from the carboxy to the amino group of Ala-Val; major species at pH 7.3.
N(Omega)-methyl-L-arginine
A L-arginine derivative with a N(omega)-methyl substituent.
Ile-Gly zwitterion
A dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Ile-Gly. Major species at pH 7.3.
Leu-Gly zwitterion
A dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Leu-Gly. Major species at pH 7.3.
N-isopropyl-L-glutamine zwitterion
An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of N-isopropyl-L-glutamine; major species at pH 7.3.
(2s)-6-amino-2-[(1-hydroxyethylidene)amino]hexanoic acid
2,3,4,5,-trimethylphenyl-2-butene
{"Ingredient_id": "HBIN003856","Ingredient_name": "2,3,4,5,-trimethylphenyl-2-butene","Alias": "NA","Ingredient_formula": "C13H16O","Ingredient_Smile": "CC1=C(C(=C(C=C1)C=CC(=O)C)C)C","Ingredient_weight": "NA","OB_score": "NA","CAS_id": "NA","SymMap_id": "NA","TCMID_id": "42896","TCMSP_id": "NA","TCM_ID_id": "NA","PubChem_id": "NA","DrugBank_id": "NA"}
4-(3,3-dimethyl-1,4-pentadienyl)phenol
{"Ingredient_id": "HBIN009897","Ingredient_name": "4-(3,3-dimethyl-1,4-pentadienyl)phenol","Alias": "NA","Ingredient_formula": "C13H16O","Ingredient_Smile": "CC(C)(C=C)C=CC1=CC=C(C=C1)O","Ingredient_weight": "188.26 g/mol","OB_score": "NA","CAS_id": "NA","SymMap_id": "NA","TCMID_id": "NA","TCMSP_id": "NA","TCM_ID_id": "7967","PubChem_id": "5470819","DrugBank_id": "NA"}
benzene,[1-(2-propenyloxy)-3-butenyl]
{"Ingredient_id": "HBIN017741","Ingredient_name": "benzene,[1-(2-propenyloxy)-3-butenyl]","Alias": "NA","Ingredient_formula": "C13H16O","Ingredient_Smile": "C=CCC(C1=CC=CC=C1)OCC=C","Ingredient_weight": "188.26 g/mol","OB_score": "NA","CAS_id": "NA","SymMap_id": "NA","TCMID_id": "40804","TCMSP_id": "NA","TCM_ID_id": "NA","PubChem_id": "535320","DrugBank_id": "NA"}
