1
|
Kil Y, Pichkur EB, Sergeev VR, Zabrodskaya Y, Myasnikov A, Konevega AL, Shtam T, Samygina VR, Rychkov GN. The archaeal highly thermostable GH35 family β-galactosidase DaβGal has a unique seven domain protein fold. FEBS J 2024. [PMID: 38825733 DOI: 10.1111/febs.17166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 04/29/2024] [Accepted: 05/17/2024] [Indexed: 06/04/2024]
Abstract
The most extensively studied β-d-galactosidases (EC3.2.1.23) belonging to four glycoside hydrolase (GH) families 1, 2, 35, and 42 are widely distributed among Bacteria, Archaea and Eukaryotes. Here, we report a novel GH35 family β-galactosidase from the hyperthermophilic Thermoprotei archaeon Desulfurococcus amylolyticus (DaβGal). Unlike fungal monomeric six-domain β-galactosidases, the DaβGal enzyme is a dimer; it has an extra jelly roll domain D7 and three composite domains (D4, D5, and D6) that are formed by the distantly located polypeptide chain regions. The enzyme possesses a high specificity for β-d-galactopyranosides, and its distinguishing feature is the ability to cleave pNP-β-d-fucopyranoside. DaβGal efficiently catalyzes the hydrolysis of lactose at high temperatures, remains stable and active at 65 °С, and retains activity at 95 °С with a half-life time value equal to 73 min. These properties make archaeal DaβGal a more attractive candidate for biotechnology than the widely used fungal β-galactosidases.
Collapse
Affiliation(s)
- Yury Kil
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
| | - Evgeny B Pichkur
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- Structural Biology Department, Kurchatov Complex of NBICS Nature-Like Technologies, National Research Center "Kurchatov Institute", Moscow, Russia
- Laboratory of X-ray Analysis and Synchrotron Radiation, Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, Moscow, Russia
| | - Vladimir R Sergeev
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint-Petersburg Polytechnic University, Russia
| | - Yana Zabrodskaya
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint-Petersburg Polytechnic University, Russia
- Department of Molecular Biology of Viruses, Smorodintsev Research Institute of Influenza, St. Petersburg, Russia
| | - Alexander Myasnikov
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
| | - Andrey L Konevega
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- Structural Biology Department, Kurchatov Complex of NBICS Nature-Like Technologies, National Research Center "Kurchatov Institute", Moscow, Russia
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint-Petersburg Polytechnic University, Russia
| | - Tatiana Shtam
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- Structural Biology Department, Kurchatov Complex of NBICS Nature-Like Technologies, National Research Center "Kurchatov Institute", Moscow, Russia
| | - Valeriya R Samygina
- Structural Biology Department, Kurchatov Complex of NBICS Nature-Like Technologies, National Research Center "Kurchatov Institute", Moscow, Russia
- Laboratory of X-ray Analysis and Synchrotron Radiation, Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, Moscow, Russia
| | - Georgy N Rychkov
- Department of Molecular and Radiation Biophysics, Petersburg Nuclear Physics Institute named by B.P.Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint-Petersburg Polytechnic University, Russia
| |
Collapse
|
2
|
Nakajima M. β-1,2-Glucans and associated enzymes. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01205-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
3
|
Kobayashi K, Shimizu H, Tanaka N, Kuramochi K, Nakai H, Nakajima M, Taguchi H. Characterization and structural analyses of a novel glycosyltransferase acting on the β-1,2-glucosidic linkages. J Biol Chem 2022; 298:101606. [PMID: 35065074 PMCID: PMC8861115 DOI: 10.1016/j.jbc.2022.101606] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 10/26/2022] Open
|