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Structure-dynamics-function relationship of the methylaspartase ammonia-lyase (CROSBI ID 682258)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Sanader Maršić, Željka ; Lambrughi, Matteo ; Papaleo, Elena ; Saez-Jimenez, Veronica ; Mapelli, Valeria ; Olsson, Lisbeth Structure-dynamics-function relationship of the methylaspartase ammonia-lyase. 2019

Podaci o odgovornosti

Sanader Maršić, Željka ; Lambrughi, Matteo ; Papaleo, Elena ; Saez-Jimenez, Veronica ; Mapelli, Valeria ; Olsson, Lisbeth

engleski

Structure-dynamics-function relationship of the methylaspartase ammonia-lyase

Ammonia lyases (AL) are enzymes of interest for the bio-based production of adipic acid that is widely used for nylon production. Using microsecond molecular dynamics, we investigated the conformational changes in the proximity of the active site of a 3-methylaspartate ammonia lyase (MAL). We identified two regulatory structural elements in the MAL structure: the β5-α2 loop and the helix-hairpin-loop subdomain whose rearrangement changes the accessibility of the active site (e.g. from 'closed' to 'open' states). The β5-α2 loop and the helix-hairpin-loop subdomain modulate the formation of tunnels from the protein surface to the substrate binding site, making the active site more accessible to the substrate when they are in an open state. Our data suggest that protein dynamics need to be considered in the design of new AL variants for protein engineering.

methylaspartase ammonia-lyase ; molecular dynamics ; green production of adipic acid

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Podaci o prilogu

2019.

objavljeno

Podaci o matičnoj publikaciji

Podaci o skupu

Interdisciplinary Endeavour in Technology at Nanoscale, Water and Environment

poster

09.10.2019-11.10.2019

Split, Hrvatska

Povezanost rada

Biotehnologija, Fizika