Vassily Hatzimanikatis

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About Vassily Hatzimanikatis:

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SEEK ID: https://fairdomhub.org/people/582

Location: Switzerland

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ERASysAPP

The main objective of the ERANET proposal Systems Biology Applications - ERASysAPP (app = application = translational systems biology) is to promote multidimensional and complementary European systems biology projects, programmes and research initiatives on a number of selected research topics. Inter alia, ERASysAPP will initiate, execute and monitor a number of joint transnational calls on systems biology research projects with a particular focus on applications - or in other words so called ...

Projects: SysVirDrug, SysMilk, SysMetEx, MetApp, IMOMESIC, WineSys, CropClock, SYSTERACT, XyloCut, RootBook, ROBUSTYEAST, LEANPROT, ErasysApp Funders

Web page: https://www.cobiotech.eu/about-cobiotech/erasysapp

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ROBUSTYEAST

Microbial strains used in biotechnological industry need to produce their biotechnological products at high yield and at the same time they are desired to be robust to the intrinsic nutrient dynamics of large-scale bioreactors, most noticeably to transient limitations of carbon sources and oxygen. The engineering principles for robustness of metabolism to nutrient dynamics are however not yet well understood. The ROBUSTYEAST project aims to reveal these principles for microbial strain improvement ...

Programme: ERASysAPP

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Organisms: Saccharomyces cerevisiae

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Ecole Polytechnique Fédérale de Lausanne (EPFL)

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Country: Switzerland

City: Lausanne

Web page: https://www.epfl.ch/

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Metabolic thermodynamics: pertinent reference state and energy potentials

Thermodynamics, Book on Thermodynamics, and kinetics, Thermotables for biochemistry

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Chemical potentials (molar Gibbs energies) are usually extrapolated to the remote physical–chemical reference state and then stored. Subsequent use under in vivo conditions requires a similarly … conditions requires a similarly substantial, reverse extrapolation, again with significant potential errors. In order to shrink both extrapolations drastically and thereby enhance both biological meaning and accuracy, we propose a transformation to a more biological reference state: pH = 7, pMg = 3, 99.5% water, with 1 m m each of the additional ‘precursors’ inorganic phosphate, sulfate, ammonium, and bicarbonate, and with twin temperatures 37 and 25 °C, ionic strength 0.15 m and m m as concentration unit. These precursors substitute for reference compounds alien to biology such as H 2 at 1 bar, and solid graphite, sulfur, and phosphorus. The standard chemical potentials are herewith increased by the magnitudes of the chemical potentials of protons, Mg 2+ , water, and the four precursors, each multiplied by the number of corresponding atoms in the molecule. This defines standard ‘metabolic potentials’. We make these potentials findable and accessible as 1360 collated standard chemical potentials for 320 compounds of biochemical interest at the twin metabolic reference states. We do this for 3 reference pH's: We present the metabolic reference state as a convenient anchor , not a universal intracellular milieu. All datasets must continue to report the actual experimental state ( T , pH, pMg, I , osmolarity, concentrations), yet aim at (also) reporting parameter values for this anchor state; we supply algorithms to transform between states. This preserves interoperability across diverse organelles, media and between enzymology and chemical engineering, while facilitating reuse.

Authors: Hans V. Westerhoff, Barbara M. Bakker, Andreas S. Bommarius, Maria Luz Cárdenas, Athel Cornish‐Bowden, Paul Fitzpatrick, Peter J. Halling, Vassily Hatzimanikatis, Carsten Kettner, Yanhua Liu, Andrew G. McDonald, Elad Noor, Jürgen Pleiss, Frank M. Raushel, Johann M. Rohwer, Santiago Schnell, Keith F. Tipton, Ming‐Daw Tsai, Urs von Stockar, Ulrike Wittig, Roland Wohlgemuth, John M. Woodley

Date Published: 5th Mar 2026

Publication Type: Journal Article

DOI: 10.1111/febs.70415

Citation: The FEBS Journal 293(11):3111-3126.

Created: 6th Jul 2026 at 20:37, Last updated: 6th Jul 2026 at 20:40

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