Classification Term: 170071

二肽 (ontology term: a784869ceb17526630d62e6a7ee268a0)

found 4 associated metabolites at no_class-level_20 metabolite taxonomy ontology rank level.

Ancestor: 氨基酸、肽和类似物

Child Taxonomies: There is no child term of current ontology term.

Phenylalanylphenylalanine

(2S)-2-{[(2S)-2-azaniumyl-3-phenylpropanoyl]amino}-3-phenylpropanoate

C18H20N2O3 (312.147385)


Phenylalanylphenylalanine (Phe-Phe) is a peptide made of two phenylalanine molecules. Phenylalanine is an essential amino acid and the precursor for the amino acid tyrosine. Like tyrosine, it is the precursor of catecholamines in the body (tyramine, dopamine, epinephrine and norepinephrine). The psychotropic drugs (mescaline, morphine, codeine, and papaverine) also have phenylalanine as a constituent. Phenylalanine is a precursor of the neurotransmitters called catecholamines, which are adrenalin-like substances. Phenylalanine is highly concentrated in the human brain and plasma. The Phe-Phe recognition motif of the Alzheimer?s Abeta peptide is the smallest peptide able to assemble into higher ?order structures.(PMC:1796831) [HMDB] Phenylalanylphenylalanine (Phe-Phe) is a peptide made of two phenylalanine molecules. Phenylalanine is an essential amino acid and the precursor for the amino acid tyrosine. Like tyrosine, it is the precursor of catecholamines in the body (tyramine, dopamine, epinephrine and norepinephrine). The psychotropic drugs (mescaline, morphine, codeine, and papaverine) also have phenylalanine as a constituent. Phenylalanine is a precursor of the neurotransmitters called catecholamines, which are adrenalin-like substances. Phenylalanine is highly concentrated in the human brain and plasma. The Phe-Phe recognition motif of Alzheimers amyloid-beta peptide is the smallest peptide able to assemble into higher-order structures (PMID: 17172307).

   

Arginyllysine

(2S)-6-amino-2-[(2S)-2-amino-5-carbamimidamidopentanamido]hexanoic acid

C12H26N6O3 (302.20662860000004)


Arginyllysine is a dipeptide composed of arginine and lysine. 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.

   

Valylglutamine

(2S)-2-[(2S)-2-amino-3-methylbutanamido]-4-carbamoylbutanoic acid

C10H19N3O4 (245.13754939999998)


Valylglutamine is a dipeptide composed of valine and glutamine. 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.

   

β-Aspartylaspartic acid

2-[(3-amino-3-carboxypropanoyl)amino]butanedioic acid

C8H12N2O7 (248.0644482)


β-Aspartylaspartic acid is a natural compound found in Asparagus (Asparagus officinalis) Shoots[1].