ネモト ナオキ   Naoki Nemoto
  根本 直樹
   所属   千葉工業大学  先進工学部 生命科学科
   千葉工業大学  工学研究科 工学専攻
   千葉工業大学  先進工学研究科 生命科学専攻
   職種   教授
言語種別 英語
発行・発表の年月 2024/10
形態種別 学術雑誌
査読 査読あり
標題 Crystal structure of guanosine 5'-monophosphate synthetase from the thermophilic bacterium Thermus thermophilus HB8.
執筆形態 共著
掲載誌名 Acta crystallographica. Section F, Structural biology communications
掲載区分国外
出版社・発行元 IUCr Journals
巻・号・頁 80(Pt 10),pp.278-285
著者・共著者 Naoki Nemoto, Seiki Baba, Gota Kawai, Gen Ichi Sampei
概要 In this study, the crystal structure of an XMP-bound form of Guanosine 5'-monophosphate (GMP) synthetase (GuaA) from the thermophilic bacterium Thermus thermophilus HB8 (TtGuaA) was determined at a resolution of 2.20 Å and that of an apo form of TtGuaA was determined at 2.10 Å resolution. TtGuaA forms a homodimer, and the monomer is composed of three domains, which is a typical structure for GuaA. Disordered regions in the crystal structure were obtained from the AlphaFold2-predicted model structure, and a model with substrates (Gln, XMP and ATP) was constructed for molecular-dynamics (MD) simulations. The structural fluctuations of the TtGuaA dimer as well as the interactions between the active-site residues were analyzed by MD simulations.
DOI 10.1107/S2053230X2400877X
ISSN 2053-230X
PMID 39291305