Tryptophan, an Amino-Acid Endowed with Unique Properties and Its Many Roles in Membrane Proteins

Autor: Sonia Khemaissa, Sandrine Sagan, Astrid Walrant
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Crystals, Vol 11, Iss 9, p 1032 (2021)
Druh dokumentu: article
ISSN: 2073-4352
DOI: 10.3390/cryst11091032
Popis: Tryptophan is an aromatic amino acid with unique physico-chemical properties. It is often encountered in membrane proteins, especially at the level of the water/bilayer interface. It plays a role in membrane protein stabilization, anchoring and orientation in lipid bilayers. It has a hydrophobic character but can also engage in many types of interactions, such as π–cation or hydrogen bonds. In this review, we give an overview of the role of tryptophan in membrane proteins and a more detailed description of the underlying noncovalent interactions it can engage in with membrane partners.
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