Structural engineering and truncation of α-amylase from the hyperthermophilic archaeon Methanocaldococcus jannaschii

M Shad, M Sajjad, QA Gardner, S Ahmad… - International Journal of …, 2024 - Elsevier
Alpha amylases catalyse the hydrolysis of α-1, 4-glycosidic bonds in starch, yielding
glucose, maltose, dextrin, and short oligosaccharides, vital to various industrial processes …

Amyrel, a novel glucose-forming α-amylase from Drosophila with 4-α-glucanotransferase activity by disproportionation and hydrolysis of maltooligosaccharides

G Feller, M Bonneau, JL Da Lage - Glycobiology, 2021 - academic.oup.com
The α-amylase paralogue Amyrel present in true flies (Diptera Muscomorpha) has been
classified as a glycoside hydrolase in CAZy family GH13 on the basis of its primary structure …

New groups of protein homologues in the α-amylase family GH57 closely related to α-glucan branching enzymes and 4-α-glucanotransferases

Š Janeček, M Martinovičová - Genetica, 2020 - Springer
The glycoside hydrolase family GH57 is known as the second α-amylase family. Its main
characteristics are as follows:(i) employing the retaining reaction mechanism;(ii) adopting …

An ultra-stable glucanotransferase-cum-exoamylase from the hyperthermophile archaeon Thermococcus onnurineus

P Kaila, P Guptasarma - Archives of biochemistry and biophysics, 2019 - Elsevier
The genome of the hyperthermophile archaeon Thermococcus onnurineus (strain NA1)
encodes a 652 residues-long putative 4-α-glucanotransferase of the GH 57 family which we …

A glucanotransferase that uses two sub-sites and four catalytic aspartates/glutamates to disproportionate oligosaccharides ranging in length from maltotriose to starch

A Sarkar, P Kaila, P Tiwari, P Guptasarma - bioRxiv, 2023 - biorxiv.org
PF0272 (PfuAmyGT) from Pyrococcus furiosus is a 656 residues-long, homodimeric, three-
domain GH57 glycoside hydrolase [homologous to TLGT from Thermococcus litoralis (PDB …