Defined covalent assembly of protein molecules on graphene using a genetically encoded photochemical reaction handle.

Autor: Zaki AJ; School of Physics and Astronomy, Cardiff University Cardiff CF24 3AA UK ElliottM@cardiff.ac.uk., Hartley AM; School of Biosciences, Cardiff University CF10 3AX UK JonesDD@cardiff.ac.uk., Reddington SC; School of Biosciences, Cardiff University CF10 3AX UK JonesDD@cardiff.ac.uk., Thomas SK; School of Physics and Astronomy, Cardiff University Cardiff CF24 3AA UK ElliottM@cardiff.ac.uk., Watson P; School of Biosciences, Cardiff University CF10 3AX UK JonesDD@cardiff.ac.uk., Hayes A; School of Biosciences, Cardiff University CF10 3AX UK JonesDD@cardiff.ac.uk., Moskalenko AV; School of Physics and Astronomy, Cardiff University Cardiff CF24 3AA UK ElliottM@cardiff.ac.uk., Craciun MF; Centre for Graphene Science, University of Exeter EX4 4QF UK., Macdonald JE; School of Physics and Astronomy, Cardiff University Cardiff CF24 3AA UK ElliottM@cardiff.ac.uk., Jones DD; School of Biosciences, Cardiff University CF10 3AX UK JonesDD@cardiff.ac.uk., Elliott M; School of Physics and Astronomy, Cardiff University Cardiff CF24 3AA UK ElliottM@cardiff.ac.uk.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2018 Feb 05; Vol. 8 (11), pp. 5768-5775. Date of Electronic Publication: 2018 Feb 05 (Print Publication: 2018).
DOI: 10.1039/c7ra11166e
Abstrakt: We have created modified protein variants by introducing a non-canonical amino acid p -azido-l-phenylalanine (azF) into defined positions for photochemically-induced covalent attachment to graphene. Attachment of GFP, TEM and cyt b 562 proteins was verified through a combination of atomic force and scanning tunnelling microscopy, resistance measurements, Raman data and fluorescence measurements. This method can in principle be extended to any protein which can be engineered in this way without adversely affecting its structural stability.
Competing Interests: There are no conflicts of interest to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE