L−Lysine Amino Acid Adsorption on Zeolite L: a Combined Synchrotron, X‐Ray and Neutron Diffraction Study

Autor:	Dr. Giada Beltrami, Prof. Annalisa Martucci, Prof. Luisa Pasti, Dr. Tatiana Chenet, Dr. Matteo Ardit, Dr. Lara Gigli, Dr. Mirco Cescon, Dr. Emmanuelle Suard
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	L-lysine adsorption L zeolite neutron and synchrotron X-ray diffraction α-helical conformation Brønsted acid site Chemistry QD1-999
Zdroj:	ChemistryOpen, Vol 9, Iss 10, Pp 978-982 (2020)
Druh dokumentu:	article
ISSN:	2191-1363
DOI:	10.1002/open.202000183
Popis:	Abstract Combined neutron and X‐ray powder diffraction techniques highlighted the sorption capacity of the acidic L zeolite towards the L‐lysine amino acid. The role of zeolite channels in the stabilization of the lysine absorbed and the effect of water on protein structure are elucidated at atomistic level. The stabilization of the L α‐helical conformation is related to strong H‐bonds between the tail aminogroups of lysine molecules and the Brønsted acid site as well as to complex intermolecular H‐bond system between water molecules, zeolite and amino acid. This finding is relevant in the catalytic synthesis of polypeptide, as well as in industrial biotechnology by qualitatively predicting binding behaviour
Databáze:	Directory of Open Access Journals
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