A Designed, Highly Efficient Pyrrolysyl-tRNA Synthetase Mutant Binds o-Chlorophenylalanine Using Two Halogen Bonds.

A Designed, Highly Efficient Pyrrolysyl-tRNA Synthetase Mutant Binds o-Chlorophenylalanine Using Two Halogen Bonds.
复制标题

DOI:
10.1016/j.jmb.2022.167534
复制
发表时间:
2022-04-30
影响因子:
5.6
通讯作者:
Liu, Wenshe Ray
Liu, Wenshe Ray
中科院分区:
生物学2区
文献类型:
--
作者:
Vatansever, Erol C.;Yang, Kai S.;Geng, Zhi Zachary;Qiao, Yuchen;Li, Pingwei;Xu, Shiqing;Liu, Wenshe Ray

文献摘要

参考文献

被引文献

相似文献

作为遗传密码扩展最有价值的工具之一,吡咯赖氨酰-tRNA 合成酶(PylRS)在结构上与苯丙氨酰-tRNA 合成酶(PheRS)相关。通过将模拟 PheRS 中配体相互作用的突变引入 PylRS,我们设计了 PylRS 突变体。该突变体被命名为 oClFRS,可识别许多邻位取代的苯丙氨酸,因为它们在琥珀密码子处进行遗传掺入。其催化邻氯苯丙氨酸(o-ClF)遗传掺入的效率优于PylRS催化的Nε-叔丁氧基羰基赖氨酸。与 o-ClF 结合的 oClFRS 的晶体结构表明,o-ClF 深深结合到活性位点的疏水性但无催化活性的口袋中,并涉及两个卤素键以实现强相互作用。 o-ClF 转移到 oClFRS 活性位点中的催化活性位置对于其激活是必要的。这是第一个报道的氨酰-tRNA 合成酶,涉及两个用于连接识别的卤素键,并且可能代表开发氨酰-tRNA 合成酶突变体的替代途径,该突变体对非规范氨基酸的选择性高于天然氨基酸。
As one of the most valuable tools for genetic code expansion, pyrrolysyl-tRNA synthetase (PylRS) is structurally related to phenylalanyl-tRNA synthetase (PheRS). By introducing mutations that mimic ligand interactions in PheRS into PylRS, we designed a PylRS mutant. This mutant, designated as oClFRS, recognizes a number of o-substituted phenylalanines for their genetic incorporation at amber codon. Its efficiency in catalyzing genetic incorporation of o-chlorophenylalanine (o-ClF) is better than that for Nε-tert-butyloxycarbonyl-lysine catalyzed by PylRS. The crystal structure of oClFRS bound with o-ClF shows that o-ClF binds deeply into a hydrophobic but catalytically inactive pocket in the active site and involves two halogen bonds to achieve strong interactions. The shift of o-ClF to a catalytically active position in the oClFRS active site will be necessary for its activation. This is the first reported aminoacyl-tRNA synthetase that involves two halogen bonds for ligation recognition and might represent an alternative route to develop aminoacyl-tRNA synthetase mutants that are selective for noncanonical amino acids over native amino acids.
DOI: 10.1107/s0907444910045749
发表时间: 2011-04
期刊: Acta crystallographica. Section D, Biological crystallography
影响因子: --
作者:
Winn MD;Ballard CC;Cowtan KD;Dodson EJ;Emsley P;Evans PR;Keegan RM;Krissinel EB;Leslie AG;McCoy A;McNicholas SJ;Murshudov GN;Pannu NS;Potterton EA;Powell HR;Read RJ;Vagin A;Wilson KS
通讯作者: Wilson KS
用于快速蛋白质标记的遗传编码的醛。
DOI: 10.1039/c4cc02000f
发表时间: 2014-07-18
期刊: Chemical communications (Cambridge, England)
影响因子: --
作者:
Tuley A;Lee YJ;Wu B;Wang ZU;Liu WR
通讯作者: Liu WR
DOI: 10.1021/ja411535q
发表时间: 2014-01-29
影响因子: 15
作者:
Schmidt, Moritz J.;Borbas, Julia;Summerer, Daniel
通讯作者: Summerer, Daniel
DOI: 10.1002/anie.201000465
发表时间: 2010-01-01
影响因子: 16.6
作者:
Wan, Wei;Huang, Ying;Liu, Wenshe R.
通讯作者: Liu, Wenshe R.
DOI: 10.1107/s0907444909052925
发表时间: 2010-02
期刊: Acta crystallographica. Section D, Biological crystallography
影响因子: --
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者: Zwart PH