Probing Specificity of Protein-Protein Interactions with Chiral Plasmonic Nanostructures.
Probing Specificity of Protein-Protein Interactions with Chiral Plasmonic Nanostructures.
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探索蛋白质-蛋白质相互作用与手性等离子体纳米结构的特异性。
DOI:
10.1021/acs.jpclett.9b02288
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
M. Kadodwala
中科院分区:
文献类型:
--
作者:
Marion Rodier;C. Keijzer;J. Milner;A. Karimullah;L. Barron;N. Gadegaard;A. Lapthorn;M. Kadodwala
Protein-protein interactions (PPIs) play a pivotal role in many biological processes. Discriminating functionally important well-defined protein-protein complexes formed by specific interactions from random aggregates produced by non-specific interactions is therefore a critical capability. While there are many techniques in the biophysical tool box which enable rapid screening of binding affinities in PPIs there is no generic spectroscopic phenomenon which provides rapid characterisation of the structure of protein-protein complexes. In this study we show that chiral plasmonic fields, generated by the optical excitation of a nanostructure, probe the structural order and hence level of PPI specificity in a model antibody-antigen system. The basis of the model system is a surface immobilised Fab' fragments of polyclonal rabbit IgG antibodies that displays a high specificity for bovine serum albumin (BSA) in solution. Chiral plasmonic fields can discriminate between the structurally anisotropic ensemble of BSA-Fab' complexes and random ovalbumin (OVA)-Fab' aggregates formed by non-specific interactions. This exemplar study demonstrates the potential of chiral plasmonic fields to be the basis of a useful proteomic technology for the initial rapid high-throughput screening of PPIs.
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影响因子:
15
作者:
Tullius, Ryan;Karimullah, Affar S.;Kadodwala, Malcolm
通讯作者:
Kadodwala, Malcolm
影响因子:
2.9
作者:
Zuiderweg, ERP
通讯作者:
Zuiderweg, ERP
DOI:
10.1016/s0378-4347(01)00108-6
发表时间:
2001-05-25
期刊:
JOURNAL OF CHROMATOGRAPHY B
影响因子:
--
作者:
Huntington, JA;Stein, PE
通讯作者:
Stein, PE
影响因子:
7
作者:
Kelly, Christopher;Khorashad, Larousse Khosravi;Kadodwala, Malcolm
通讯作者:
Kadodwala, Malcolm