Post-translational insertion of boron in proteins to probe and modulate function.
Post-translational insertion of boron in proteins to probe and modulate function.
复制标题
DOI:
10.1038/s41589-021-00883-7
复制
发表时间:
2021-12
影响因子:
14.8
通讯作者:
Davis BG
中科院分区:
文献类型:
--
作者:
Mollner TA;Isenegger PG;Josephson B;Buchanan C;Lercher L;Oehlrich D;Hansen DF;Mohammed S;Baldwin AJ;Gouverneur V;Davis BG
Boron is absent in proteins, yet is a micronutrient. It possesses unique bonding that could expand biological function including modes of Lewis acidity not available to typical elements of life. Here we show that post-translational Cβ–Bγ bond formation provides mild, direct, site-selective access to the minimally sized residue boronoalanine (Bal) in proteins. Precise anchoring of boron within complex biomolecular systems allows dative bond-mediated, site-dependent protein Lewis acid–base-pairing (LABP) by Bal. Dynamic protein-LABP creates tunable inter- and intramolecular ligand–host interactions, while reactive protein-LABP reveals reactively accessible sites through migratory boron-to-oxygen Cβ–Oγ covalent bond formation. These modes of dative bonding can also generate de novo function, such as control of thermo- and proteolytic stability in a target protein, or observation of transient structural features via chemical exchange. These results indicate that controlled insertion of boron facilitates stability modulation, structure determination, de novo binding activities and redox-responsive ‘mutation’. Post-translational site-selective formation of boronoalanine in proteins enables applications of boron for binding partner capture, footprinting of interactions with reactive oxygen species, proteolytic control and mapping of transient structures.
登录
查看更多内容
影响因子:
5.6
作者:
LEE, B;RICHARDS, FM
通讯作者:
RICHARDS, FM
影响因子:
6.8
作者:
Eliezer, David
通讯作者:
Eliezer, David
影响因子:
15
作者:
Chen, Zhi-jie;Ren, Wei;Ai, Hui-wang
通讯作者:
Ai, Hui-wang
影响因子:
16.6
作者:
Brustad, Eric;Bushey, Mark L.;Schultz, Peter G.
通讯作者:
Schultz, Peter G.
影响因子:
2.7
作者:
DELAGLIO, F;GRZESIEK, S;BAX, A
通讯作者:
BAX, A