Photocontrolled Exposure of Pro-apoptotic Peptide Sequences in LOV Proteins Modulates Bcl-2 Family Interactions.

Photocontrolled Exposure of Pro-apoptotic Peptide Sequences in LOV Proteins Modulates Bcl-2 Family Interactions.
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DOI:
10.1002/cbic.201500469
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发表时间:
2016-04-15
期刊:
影响因子:
3.2
通讯作者:
Allemann, Rudolf. K.
Allemann, Rudolf. K.
中科院分区:
生物学3区
文献类型:
--
作者:
Mart, Robert J.;Meah, Dilruba;Allemann, Rudolf. K.

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LOV结构域作为光、氧或环境氧化还原电位的生物分子传感器。共价半胱氨酰黄素加合物形成后的构象变化通过设计的混合趋光蛋白LOV 2结构域的核心中的氢键网络传播,所述LOV 2结构域并入关键促凋亡蛋白BH 3相互作用结构域死亡激动剂(BID)的Bcl同源区3(BH 3)。 侧翼两亲性α螺旋构象的变化产生了光依赖性光遗传学工具,用于调节与抗凋亡B细胞白血病-2(Bcl-2)家族成员Bcl-xL的相互作用。
LOV domains act as biomolecular sensors for light, oxygen or the environment's redox potential. Conformational changes upon the formation of a covalent cysteinyl flavin adduct are propagated through hydrogen‐bonding networks in the core of designed hybrid phototropin LOV2 domains that incorporate the Bcl homology region 3 (BH3) of the key pro‐apoptotic protein BH3‐interacting‐domain death agonist (BID). The resulting change in conformation of a flanking amphiphilic α‐helix creates a light‐dependent optogenetic tool for the modulation of interactions with the anti‐apoptotic B‐cell leukaemia‐2 (Bcl‐2) family member Bcl‐xL.
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