An expandable, modular de novo protein platform for precision redox engineering

GH Hutchins, CEM Noble, HA Bunzel… - Proceedings of the …, 2023 - National Acad Sciences
The electron-conducting circuitry of life represents an as-yet untapped resource of exquisite,
nanoscale biomolecular engineering. Here, we report the characterization and structure of a …

Chimeric biocatalyst combining peptidic and nucleic acid components overcomes the performance and limitations of the native horseradish peroxidase

X Zhang, D Qiu, J Chen, Y Zhang, J Wang… - Journal of the …, 2023 - ACS Publications
Chimeric peptide-DNAzyme (CPDzyme) is a novel artificial peroxidase that relies on the
covalent assembly of DNA, peptides, and an enzyme cofactor in a single scaffold. An …

Cooperative Conformational Transitions Underpin the Activation Heat Capacity in the Temperature Dependence of Enzyme Catalysis

EJ Walker, CJ Hamill, R Crean, MS Connolly… - ACS …, 2024 - ACS Publications
Many enzymes display non-Arrhenius behavior with curved Arrhenius plots in the absence
of denaturation. There has been significant debate about the origin of this behavior and …

Selective oxidation of halophenols catalyzed by an artificial miniaturized peroxidase

D D'Alonzo, M De Fenza, V Pavone… - International Journal of …, 2023 - mdpi.com
The development of artificial enzymes for application in sustainable technologies, such as
the transformation of environmental pollutants or biomass, is one of the most challenging …

Glycosylation increases active site rigidity leading to improved enzyme stability and turnover

K Ramakrishnan, RL Johnson, SD Winter… - The FEBS …, 2023 - Wiley Online Library
Glycosylation is the most prevalent protein post‐translational modification, with a quarter of
glycosylated proteins having enzymatic properties. Yet, the full impact of glycosylation on the …

Engineering flexible loops to enhance thermal stability of keratinase for efficient keratin degradation

Z Peng, Z Miao, X Ji, G Zhang, J Zhang - Science of The Total Environment, 2022 - Elsevier
Keratinase-catalyzed degradation of keratin waste has been shown to be a promising
recycling method. Although the recombinant KerZ1 derived from Bacillus subtilis has shown …

Oxidative dehalogenation of trichlorophenol catalyzed by a promiscuous artificial heme-enzyme

G Zambrano, A Sekretareva, D D'Alonzo, L Leone… - RSC …, 2022 - pubs.rsc.org
The miniaturized metalloenzyme Fe (III)-mimochrome VI* a (Fe (III)-MC6* a) acts as an
excellent biocatalyst in the H2O2-mediated oxidative dehalogenation of the well-known …

UV-Spectroscopic Detection of (Pyro-) Phosphate with the PUB module

L Eilert, A Schallmey, F Kaspar - Analytical Chemistry, 2022 - ACS Publications
Despite the prevalence of ortho-and pyrophosphate in biochemistry, operationally simple
and versatile high-throughput methodologies for their quantification are lacking. We herein …

Enhanced Catalytic Activity of a de novo Enzyme in a Coacervate Phase

E Kluczka, V Rinaldo, A Coutable‐Pennarun… - …, 2024 - Wiley Online Library
Biomolecular condensates are membraneless organelles that orchestrate various metabolic
pathways in living cells. Understanding how these crowded structures regulate enzyme …

A thermodynamic model for interpreting tryptophan excitation-energy-dependent fluorescence spectra provides insight into protein conformational sampling and …

A Kwok, IS Camacho, S Winter, M Knight… - Frontiers in Molecular …, 2021 - frontiersin.org
It is now over 30 years since Demchenko and Ladokhin first posited the potential of the
tryptophan red edge excitation shift (REES) effect to capture information on protein …