Thermodynamic and biophysical study of fatty acid effector binding to soybean lipoxygenase: implications for allostery driven by helix α2 dynamics
Thermodynamic and biophysical study of fatty acid effector binding to soybean lipoxygenase: implications for allostery driven by helix α2 dynamics
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脂肪酸效应子与大豆脂氧合酶结合的热力学和生物物理学研究:对螺旋α2动力学驱动的变构的影响
DOI:
10.1002/1873-3468.14275
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发表时间:
2022
期刊:
影响因子:
3.5
通讯作者:
Offenbacher, Adam R.
中科院分区:
文献类型:
--
作者:
Roberts, Daniella E.;Benton, Amy M.;Fabian‐Bayola, Claire;Spuches, Anne M.;Offenbacher, Adam R.
Previous comparative kinetic isotope effects have inferred an allosteric site for fatty acids and their derivatives that modulates substrate selectivity in 15‐lipoxygenases. Hydrogen–deuterium exchange also previously revealed regionally defined enhanced protein flexibility, centred at helix α2 – a gate to the substrate entrance. Direct evidence for allosteric binding and a complete understanding of its mechanism remains elusive. In this study, we examine the binding thermodynamics of the fatty acid mimic, oleyl sulfate (OS), with the monomeric model plant 15‐LOX, soybean lipoxygenase (SLO), using isothermal titration calorimetry. Dynamic light scattering and differential scanning calorimetry rule out OS‐induced oligomerization or structural changes. These data provide evidence that the fatty acid allosteric regulation of SLO is controlled by the dynamics of helix α2.
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影响因子:
5.6
作者:
Weifeng Shang;I. Ivanov;D. Svergun;O. Borbulevych;Ansari M. Aleem;Sabine Stehling;J. Jankun;H. Kühn;E. Skrzypczak‐Jankun
通讯作者:
E. Skrzypczak‐Jankun
影响因子:
2.9
作者:
Wecksler,AaronT;Kenyon,Victor;Garcia,NatalieK;Deschamps,JoshuaD;vanderDonk,WilfredA;Holman,TheodoreR
通讯作者:
Holman,TheodoreR
DOI:
10.1016/j.bbagen.2015.08.018
发表时间:
2016-05-01
影响因子:
3
作者:
Johnson, Rachel A.;Manley, Olivia M.;Grossoehme, Nicholas E.
通讯作者:
Grossoehme, Nicholas E.
影响因子:
62.1
作者:
Serhan, Charles N.;Petasis, Nicos A.
通讯作者:
Petasis, Nicos A.
影响因子:
2.9
作者:
Ivanov, Igor;Shang, Weifeng;Kuehn, Hartmut
通讯作者:
Kuehn, Hartmut