7MNC

PTP1B L204A

7MNC の概要

• エントリーDOI: 10.2210/pdb7mnc/pdb
• 分子名称: Tyrosine-protein phosphatase non-receptor type 1, CHLORIDE ION, 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL, ... (4 entities in total)
• 機能のキーワード: protein tyrosine phosphatase, hydrolase
• 由来する生物種: Homo sapiens (Human)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 36054.08

構造登録者

Torgeson, K.R.,Page, R.,Peti, W. (登録日: 2021-04-30, 公開日: 2022-05-18, 最終更新日: 2023-10-18)

主引用文献

Torgeson, K.R.,Clarkson, M.W.,Granata, D.,Lindorff-Larsen, K.,Page, R.,Peti, W.
Conserved conformational dynamics determine enzyme activity.
Sci Adv, 8:eabo5546-eabo5546, 2022

PubMed Abstract: Homologous enzymes often exhibit different catalytic rates despite a fully conserved active site. The canonical view is that an enzyme sequence defines its structure and function and, more recently, that intrinsic protein dynamics at different time scales enable and/or promote catalytic activity. Here, we show that, using the protein tyrosine phosphatase PTP1B, residues surrounding the PTP1B active site promote dynamically coordinated chemistry necessary for PTP1B function. However, residues distant to the active site also undergo distinct intermediate time scale dynamics and these dynamics are correlated with its catalytic activity and thus allow for different catalytic rates in this enzyme family. We identify these previously undetected motions using coevolutionary coupling analysis and nuclear magnetic resonance spectroscopy. Our findings strongly indicate that conserved dynamics drives the enzymatic activity of the PTP family. Characterization of these conserved dynamics allows for the identification of novel regulatory elements (therapeutic binding pockets) that can be leveraged for the control of enzymes.

PubMed: 35921420
DOI: 10.1126/sciadv.abo5546

実験手法

X-RAY DIFFRACTION (1.85 Å)