Biochemistry

Dipeptide

Definition

A dipeptide is a molecule consisting of two amino acids joined by a single peptide bond. Despite their small size, dipeptides can have significant biological activity — carnosine (beta-alanyl-L-histidine) is a naturally occurring dipeptide with antioxidant and anti-glycation properties. Dipeptides are generally more resistant to proteolysis than larger peptides and may be absorbed intact through intestinal peptide transporters (PepT1).

Related Terms

Peptide Bond Amino Acid Proteolysis

Related Studies

The protective role of carnosine against type 2 diabetes-induced cognitive impairment

Wang Q, Tripodi N, Valiukas Z, et al. · Food Science & Nutrition (2024)

Zinc, carnosine, and neurodegenerative diseases

Kawahara M, Tanaka KI, Kato-Negishi M · Nutrients (2018)

The biological role of carnosine and its possible applications in medicine

Budzeń S, Rymaszewska J · Advances in Clinical and Experimental Medicine (2013)

More Biochemistry Terms

Amino Acid Anabolic Brain-Derived Neurotrophic Factor (BDNF) Collagen Disulfide Bond Endogenous Peptide Glucagon-Like Peptide-1 (GLP-1) Glucose-dependent Insulinotropic Polypeptide (GIP)

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