» Articles » PMID: 33110966

Designed Heterochiral Blue Fluorescent Protein

Overview
Journal ACS Omega
Specialty Chemistry
Date 2020 Oct 28
PMID 33110966
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

Diversification of chain stereochemistry offers a tremendous increase in protein design space. We have designed a minimal fluorescent protein, pregnant with β-(1-azulenyl)-l-alanine in the hydrophobic core of a heterotactic protein scaffold, employing automated design tools such as automated repetitive simulated annealing molecular dynamics and IDeAS. The designed heterochiral protein can be selectively excited at 342 nm, quite distant from the intrinsic fluorophore, and emits in the blue region. The structure and stability of the designed proteins were evaluated by established spectroscopic and calorimetric methods.

Citing Articles

Recent Progress Using De Novo Design to Study Protein Structure, Design and Binding Interactions.

Ferrando J, Solomon L Life (Basel). 2021; 11(3).

PMID: 33802210 PMC: 7999464. DOI: 10.3390/life11030225.

References
1.
Neidigh J, Fesinmeyer R, Andersen N . Designing a 20-residue protein. Nat Struct Biol. 2002; 9(6):425-30. DOI: 10.1038/nsb798. View

2.
Ramakrishnan V, Ranbhor R, Kumar A, Durani S . The link between sequence and conformation in protein structures appears to be stereochemically established. J Phys Chem B. 2006; 110(18):9314-23. DOI: 10.1021/jp056417e. View

3.
Alston R, Lasagna M, Grimsley G, Scholtz J, Reinhart G, Pace C . Peptide sequence and conformation strongly influence tryptophan fluorescence. Biophys J. 2007; 94(6):2280-7. PMC: 2257887. DOI: 10.1529/biophysj.107.116921. View

4.
Loidl G, Musiol H, Budisa N, Huber R, Poirot S, Fourmy D . Synthesis of beta-(1-azulenyl)-L-alanine as a potential blue-colored fluorescent tryptophan analog and its use in peptide synthesis. J Pept Sci. 2000; 6(3):139-44. DOI: 10.1002/(SICI)1099-1387(200003)6:3<139::AID-PSC240>3.0.CO;2-6. View

5.
Hosseinzadeh P, Bhardwaj G, Mulligan V, Shortridge M, Craven T, Pardo-Avila F . Comprehensive computational design of ordered peptide macrocycles. Science. 2017; 358(6369):1461-1466. PMC: 5860875. DOI: 10.1126/science.aap7577. View