- EMDB-60840: Cryo-EM structure of MxaF/MxaJ/PQQ complex -
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基本情報
登録情報
データベース: EMDB / ID: EMD-60840
タイトル
Cryo-EM structure of MxaF/MxaJ/PQQ complex
マップデータ
試料
複合体: MxaF/MxaJ/PQQ complex
タンパク質・ペプチド: Methanol dehydrogenase, alpha subunit
タンパク質・ペプチド: Methanol oxidation protein MxaJ
リガンド: PYRROLOQUINOLINE QUINONE
キーワード
MxaF/MxaJ/PQQ / PROTEIN BINDING
機能・相同性
機能・相同性情報
methanol catabolic process / Oxidoreductases; Acting on the CH-OH group of donors; With a cytochrome as acceptor / oxidoreductase activity, acting on CH-OH group of donors / outer membrane-bounded periplasmic space / periplasmic space / calcium ion binding / membrane 類似検索 - 分子機能
Methanol oxidation system protein MoxJ / Bacterial quinoprotein dehydrogenases signature 1. / Quinoprotein dehydrogenase, conserved site / Bacterial quinoprotein dehydrogenases signature 2. / PQQ-dependent dehydrogenase, methanol/ethanol family / Glucose/ethanol/alcohol dehydrogenase, beta-propeller domain / Bacterial periplasmic substrate-binding proteins / Bacterial extracellular solute-binding proteins, family 3 / Solute-binding protein family 3/N-terminal domain of MltF / Pyrrolo-quinoline quinone repeat ...Methanol oxidation system protein MoxJ / Bacterial quinoprotein dehydrogenases signature 1. / Quinoprotein dehydrogenase, conserved site / Bacterial quinoprotein dehydrogenases signature 2. / PQQ-dependent dehydrogenase, methanol/ethanol family / Glucose/ethanol/alcohol dehydrogenase, beta-propeller domain / Bacterial periplasmic substrate-binding proteins / Bacterial extracellular solute-binding proteins, family 3 / Solute-binding protein family 3/N-terminal domain of MltF / Pyrrolo-quinoline quinone repeat / Pyrrolo-quinoline quinone beta-propeller repeat / beta-propeller repeat / Quinoprotein alcohol dehydrogenase-like superfamily 類似検索 - ドメイン・相同性
National Natural Science Foundation of China (NSFC)
82272379
中国
引用
ジャーナル: Nat Commun / 年: 2025 タイトル: Deciphering the assembly process of PQQ dependent methanol dehydrogenase. 著者: Haichuan Zhou / Junqing Sun / Jian Cheng / Min Wu / Jie Bai / Qian Li / Jie Shen / Manman Han / Chen Yang / Liangpo Li / Yuwan Liu / Qichen Cao / Weidong Liu / Haixia Xiao / Hongjun Dong / ...著者: Haichuan Zhou / Junqing Sun / Jian Cheng / Min Wu / Jie Bai / Qian Li / Jie Shen / Manman Han / Chen Yang / Liangpo Li / Yuwan Liu / Qichen Cao / Weidong Liu / Haixia Xiao / Hongjun Dong / Feng Gao / Huifeng Jiang / 要旨: Pyrroloquinoline quinone (PQQ)-dependent methanol dehydrogenases (MDHs), the periplasmic metalloenzymes in Gram-negative methylotrophic bacteria, play a pivotal role in methane and methanol bio- ...Pyrroloquinoline quinone (PQQ)-dependent methanol dehydrogenases (MDHs), the periplasmic metalloenzymes in Gram-negative methylotrophic bacteria, play a pivotal role in methane and methanol bio-utilization. Although the structures of many PQQ-dependent MDHs have been resolved, including the canonical heterotetrameric enzymes composed of two MxaF and two MxaI subunits with a molecule of PQQ and a calcium ion in the active site in MxaF, the biogenesis of these enzymes remains elusive. Here, we characterize a chaperone, MxaJ, responsible for PQQ incorporation by reconstructing a PQQ-dependent MDH assembly system in Escherichia coli. Using cryo-electron microscopy, we capture the structures of the intermediate complexes formed by the chaperone MxaJ and catalytic subunit MxaF during PQQ-dependent MDH maturation, revealing a chaperone-mediated molecular mechanism of cofactor incorporation. These findings not only advance our understanding on the biogenesis of PQQ-dependent MDH, but also provide an alternative engineering way for methane and methanol bioconversion.
名称: Methanol dehydrogenase, alpha subunit / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO EC番号: Oxidoreductases; Acting on the CH-OH group of donors; With a cytochrome as acceptor