H. V. Westerhoff

Publication List Details

Period

1982 - 2009

Number

209

Co-Authors

SulfoSYS (Sulfolobus Systems Biology): towards a silicon cell model for the central carbohydrate metabolism of the archaeon Sulfolobus solfataricus under temperature variation (2009)

Albers, S.V., Birkeland, N.K., Driessen, A.J.M., Gertig, S., Haferkamp, P., Klenk, H.P., ...

SulfoSYS (Sulfolobus Systems Biology) focuses on the study of the CCM (central carbohydrate metabolism) of Sulfolobus solfataricus and its regulation under temperature variation at the systems level....

A consensus yeast metabolic network reconstruction obtained from a community approach to systems biology (2008)

Herrgård, M.J., Swainston, N., Dobson, P., Dunn, W.B., Arga, K.Y., Arvas, M., ...

Genomic data allow the large-scale manual or semi-automated assembly of metabolic network reconstructions, which provide highly curated organism-specific knowledge bases. Although several...

Networks: A New Summation Law (2007)

M. A. Peletier, H. V. Westerhoff, B. N. Kholodenko, Mark A. Peletier, Hans V. Westerhoff, Boris N. Kholodenko

Control of spatially heterogeneous and time-varying cellular reaction networks: a new summation law

en Informatica REPORTRAPPORT Modelling, Analysis and Simulation Modelling, Analysis and Simulation (2007)

C. Francke, P. W. Postma, H. V. Westerhoff, J. G. Blom, M. A. Peletier, Christof Francke, ...

Why the phosphotransferase system of Escherichia coli escapes the diffusion limitation of signal transduction, transport and metabolism that confronts mammalian cells

The fluxes through glycolytic enzymes in S. cerevisiae are predominantly regulated at posttranscriptional levels (2007)

Daran-Lapujade, P., Rossell, S., Gulik, W.M. Van, Slijper, M., ...

Metabolic fluxes may be regulated ‘‘hierarchically,’’ e.g., by changes of gene expression that adjust enzyme capacities (Vmax) and/or ‘‘metabolically’’ by interactions of enzymes with...

Frequency-dependent incidence in models of sexually transmitted diseases: portrayal of pair-based transmission and effects of illness on contact behaviour (2004)

Lloyd-Smith, J O, Getz, W M, Westerhoff, H V

We explore the transmission process for sexually transmitted diseases (STDs). We derive the classical frequency-dependent incidence mechanistically from a pair-formation model, using an approximation...

Control analysis of trophic chains (2003)

Getz, Wayne M, Westerhoff, H V, Hofmeyr, JHS, Snoep, J L

Inspired by the application of metabolic control analysis (MCA) to biochemical networks, we conduct a generalized sensitivity analysis of the equilibrium of a set of differential equations used to...

Cytochromes c550, c552, c1 in the electron transport network of Paracoccus denitrificans: redundant or subtly different in function? (2001)

Otten, M.F., Reijnders, W.N.M., Westerhoff, H.V., Ludwig, B.

Paracoccus denitrificans strains with mutations in the genes encoding the cytochrome c550, c552, or c1 and in combinations of these genes were constructed, and their growth characteristics were...

Control analysis of the dependence of Escherichia coli physiology on the H(+)-ATPase.

Jensen, P R, Michelsen, O, Westerhoff, H V

The H(+)-ATPase plays a central role in Escherichia coli free-energy transduction and hence in E. coli physiology. We here investigate the extent to which this enzyme also controls the growth rate,...

Energy buffering of DNA structure fails when Escherichia coli runs out of substrate.

Jensen, P R, Loman, L, Petra, B, Westerhoff, H V

To study how changes in the [ATP]/[ADP] ratio affect the level of DNA supercoiling in Escherichia coli, the cellular content of H(+)-ATPase was modulated around the wild-type level. A relatively...

Coupling of vectorial proton flow to a biochemical reaction by local electric interactions.

Kamp, F, Astumian, R D, Westerhoff, H V

For a transmembrane redox enzyme and a (passive) protonophore, the complete set of rate equations is given. Turnover causes cyclic variation of their electric polarization. This is responsible not...

Magainins and the disruption of membrane-linked free-energy transduction.

Westerhoff, H V, Juretić, D, Hendler, R W, Zasloff, M

Magainins, a family of positively charged peptides, are partly if not wholly responsible for antimicrobial activity in skin extracts of Xenopus laevis. We report here that members of the magainin...

Can free energy be transduced from electric noise?

Astumian, R D, Chock, P B, Tsong, T Y, Chen, Y D, Westerhoff, H V

Recently, it was shown that free energy can be transduced from a regularly oscillating electric field to do chemical or transport work when coupled through an enzyme with appropriate electrical...

Mosaic nonequilibrium thermodynamics describes biological energy transduction.

Westerhoff, H V, Hellingwerf, K J, Arents, J C, Scholte, B J, Van Dam, K

A procedure, called "mosaic nonequilibrium thermodynamics," for describing ion movement and energy transduction in biological membranes is tested in a model system: bacteriorhodopsin liposomes. The...

How enzymes can capture and transmit free energy from an oscillating electric field.

Westerhoff, H V, Tsong, T Y, Chock, P B, Chen, Y D, Astumian, R D

Recently, it has been demonstrated that free energy from an alternating electric field can drive the active transport of Rb+ by way of the Na+, K+-ATPase. In the present work, it is shown why many...

Stochastic free energy transduction.

Westerhoff, H V, Chen, Y

Theoretical free-energy coupling systems in which the free energy coupling intermediate (e.g., the proton) occurs only in small numbers of molecules per coupling unit are shown to exhibit a number of...

Excess capacity of H(+)-ATPase and inverse respiratory control in Escherichia coli.

Jensen, P R, Westerhoff, H V, Michelsen, O

With succinate as free-energy source, Escherichia coli generating virtually all ATP by oxidative phosphorylation might be expected heavily to tax its ATP generating capacity. To examine this the...

A critical appraisal of evidence for localized energy coupling. Kinetic studies on liposomes containing bacteriorhodopsin and ATP synthase.

Van Der Bend, R L, Petersen, J, Berden, J A, Van Dam, K, Westerhoff, H V

In intact systems (chloroplasts, mitochondria and bacteria) many experiments have been reported which are indicative of localized coupling between ATP synthase and electron transfer complexes. We...

THe proton-per-electron stoicheiometry of 'site 1' of oxidative phosphorylation at high protonmotive force is close to 1.5.

De Jonge, P C, Westerhoff, H V

The maximum redox potential difference between the NAD+/NADH couple and the succinate/fumarate couple generated during ATP-energized reduction of NAD+ by succinate in submitochondrial particles was...

The hypothesis of localized chemiosmosis is unsatisfactory.

Westerhoff, H V, Simonetti, A L, Van Dam, K

The hypothesis of 'localized' chemiosmosis have been put to an experimental test in the system of oxidative phosphorylation by rat liver mitochondria. We find that the variation of the ratio of...

The two opposing activities of adenylyl transferase reside in distinct homologous domains, with intramolecular signal transduction.

Jaggi, R, Van Heeswijk, W C, Westerhoff, H V, Ollis, D L, Vasudevan, S G

Adenylyl transferase (ATase) is the bifunctional effector enzyme in the nitrogen assimilation cascade that controls the activity of glutamine synthetase (GS) in Escherichia coli. This study addresses...

Effect of channelling on the concentration of bulk-phase intermediates as cytosolic proteins become more concentrated.

Kholodenko, B N, Westerhoff, H V, Cascante, M

This paper shows that metabolic channelling can provide a mechanism for decreasing the concentration of metabolites in the cytoplasm when cytosolic proteins become more concentrated. A dynamic...

Glucose and the ATP paradox in yeast.

Somsen, O J, Hoeben, M A, Esgalhado, E, Snoep, J L, Visser, D, Van Der Heijden, R T, ...

A sustained decrease in the intracellular ATP concentration has been observed when extra glucose was added to yeast cells growing aerobically under glucose limitation. Because glucose degradation is...

Linear nonequilibrium thermodynamics describes the dynamics of an autocatalytic system.

Cortassa, S, Aon, M A, Westerhoff, H V

A model simulating oscillations in glycolysis was formulated in terms of nonequilibrium thermodynamics. In the kinetic rate equations every metabolite concentration was replaced with an exponential...

Redox interactions in cytochrome c oxidase: from the "neoclassical" toward "modern" models.

Hendler, R W, Westerhoff, H V

Because of recent experimental data on the redox characteristics of cytochrome c oxidase and renewed interest in the role of cooperativity in energy coupling, the question of redox cooperativity in...

How yeast cells synchronize their glycolytic oscillations: a perturbation analytic treatment.

Bier, M, Bakker, B M, Westerhoff, H V

Of all the lifeforms that obtain their energy from glycolysis, yeast cells are among the most basic. Under certain conditions the concentrations of the glycolytic intermediates in yeast cells can...

Transduction of intracellular and intercellular dynamics in yeast glycolytic oscillations.

Wolf, J, Passarge, J, Somsen, O J, Snoep, J L, Heinrich, R, Westerhoff, H V

Under certain well-defined conditions, a population of yeast cells exhibits glycolytic oscillations that synchronize through intercellular acetaldehyde. This implies that the dynamic phenomenon of...

Control of glycolytic dynamics by hexose transport in Saccharomyces cerevisiae.

Reijenga, K A, Snoep, J L, Diderich, J A, Van Verseveld, H W, Westerhoff, H V, Teusink, B

It is becoming accepted that steady-state fluxes are not necessarily controlled by single rate-limiting steps. This leaves open the issue whether cellular dynamics are controlled by single pacemaker...

Control analysis of the dependence of Escherichia coli physiology on the H(+)-ATPase.

Jensen, P R, Michelsen, O, Westerhoff, H V

The H(+)-ATPase plays a central role in Escherichia coli free-energy transduction and hence in E. coli physiology. We here investigate the extent to which this enzyme also controls the growth rate,...

Energy buffering of DNA structure fails when Escherichia coli runs out of substrate.

Jensen, P R, Loman, L, Petra, B, Westerhoff, H V

To study how changes in the [ATP]/[ADP] ratio affect the level of DNA supercoiling in Escherichia coli, the cellular content of H(+)-ATPase was modulated around the wild-type level. A relatively...

Coupling of vectorial proton flow to a biochemical reaction by local electric interactions.

Kamp, F, Astumian, R D, Westerhoff, H V

For a transmembrane redox enzyme and a (passive) protonophore, the complete set of rate equations is given. Turnover causes cyclic variation of their electric polarization. This is responsible not...

Magainins and the disruption of membrane-linked free-energy transduction.

Westerhoff, H V, Juretić, D, Hendler, R W, Zasloff, M

Magainins, a family of positively charged peptides, are partly if not wholly responsible for antimicrobial activity in skin extracts of Xenopus laevis. We report here that members of the magainin...

Can free energy be transduced from electric noise?

Astumian, R D, Chock, P B, Tsong, T Y, Chen, Y D, Westerhoff, H V

Recently, it was shown that free energy can be transduced from a regularly oscillating electric field to do chemical or transport work when coupled through an enzyme with appropriate electrical...

Mosaic nonequilibrium thermodynamics describes biological energy transduction.

Westerhoff, H V, Hellingwerf, K J, Arents, J C, Scholte, B J, Van Dam, K

A procedure, called "mosaic nonequilibrium thermodynamics," for describing ion movement and energy transduction in biological membranes is tested in a model system: bacteriorhodopsin liposomes. The...

How enzymes can capture and transmit free energy from an oscillating electric field.

Westerhoff, H V, Tsong, T Y, Chock, P B, Chen, Y D, Astumian, R D

Recently, it has been demonstrated that free energy from an alternating electric field can drive the active transport of Rb+ by way of the Na+, K+-ATPase. In the present work, it is shown why many...

Stochastic free energy transduction.

Westerhoff, H V, Chen, Y

Theoretical free-energy coupling systems in which the free energy coupling intermediate (e.g., the proton) occurs only in small numbers of molecules per coupling unit are shown to exhibit a number of...

Excess capacity of H(+)-ATPase and inverse respiratory control in Escherichia coli.

Jensen, P R, Westerhoff, H V, Michelsen, O

With succinate as free-energy source, Escherichia coli generating virtually all ATP by oxidative phosphorylation might be expected heavily to tax its ATP generating capacity. To examine this the...

A critical appraisal of evidence for localized energy coupling. Kinetic studies on liposomes containing bacteriorhodopsin and ATP synthase.

Van Der Bend, R L, Petersen, J, Berden, J A, Van Dam, K, Westerhoff, H V

In intact systems (chloroplasts, mitochondria and bacteria) many experiments have been reported which are indicative of localized coupling between ATP synthase and electron transfer complexes. We...

THe proton-per-electron stoicheiometry of 'site 1' of oxidative phosphorylation at high protonmotive force is close to 1.5.

De Jonge, P C, Westerhoff, H V

The maximum redox potential difference between the NAD+/NADH couple and the succinate/fumarate couple generated during ATP-energized reduction of NAD+ by succinate in submitochondrial particles was...

The hypothesis of localized chemiosmosis is unsatisfactory.

Westerhoff, H V, Simonetti, A L, Van Dam, K

The hypothesis of 'localized' chemiosmosis have been put to an experimental test in the system of oxidative phosphorylation by rat liver mitochondria. We find that the variation of the ratio of...

The two opposing activities of adenylyl transferase reside in distinct homologous domains, with intramolecular signal transduction.

Jaggi, R, Van Heeswijk, W C, Westerhoff, H V, Ollis, D L, Vasudevan, S G

Adenylyl transferase (ATase) is the bifunctional effector enzyme in the nitrogen assimilation cascade that controls the activity of glutamine synthetase (GS) in Escherichia coli. This study addresses...

Effect of channelling on the concentration of bulk-phase intermediates as cytosolic proteins become more concentrated.

Kholodenko, B N, Westerhoff, H V, Cascante, M

This paper shows that metabolic channelling can provide a mechanism for decreasing the concentration of metabolites in the cytoplasm when cytosolic proteins become more concentrated. A dynamic...

Glucose and the ATP paradox in yeast.

Somsen, O J, Hoeben, M A, Esgalhado, E, Snoep, J L, Visser, D, Van Der Heijden, R T, ...

A sustained decrease in the intracellular ATP concentration has been observed when extra glucose was added to yeast cells growing aerobically under glucose limitation. Because glucose degradation is...

Linear nonequilibrium thermodynamics describes the dynamics of an autocatalytic system.

Cortassa, S, Aon, M A, Westerhoff, H V

A model simulating oscillations in glycolysis was formulated in terms of nonequilibrium thermodynamics. In the kinetic rate equations every metabolite concentration was replaced with an exponential...

Redox interactions in cytochrome c oxidase: from the "neoclassical" toward "modern" models.

Hendler, R W, Westerhoff, H V

Because of recent experimental data on the redox characteristics of cytochrome c oxidase and renewed interest in the role of cooperativity in energy coupling, the question of redox cooperativity in...

How yeast cells synchronize their glycolytic oscillations: a perturbation analytic treatment.

Bier, M, Bakker, B M, Westerhoff, H V

Of all the lifeforms that obtain their energy from glycolysis, yeast cells are among the most basic. Under certain conditions the concentrations of the glycolytic intermediates in yeast cells can...

Transduction of intracellular and intercellular dynamics in yeast glycolytic oscillations.

Wolf, J, Passarge, J, Somsen, O J, Snoep, J L, Heinrich, R, Westerhoff, H V

Under certain well-defined conditions, a population of yeast cells exhibits glycolytic oscillations that synchronize through intercellular acetaldehyde. This implies that the dynamic phenomenon of...

Control of glycolytic dynamics by hexose transport in Saccharomyces cerevisiae.

Reijenga, K A, Snoep, J L, Diderich, J A, Van Verseveld, H W, Westerhoff, H V, Teusink, B

It is becoming accepted that steady-state fluxes are not necessarily controlled by single rate-limiting steps. This leaves open the issue whether cellular dynamics are controlled by single pacemaker...

Approaches to Biosimulation of Cellular Processes

Bruggeman, F. J., Westerhoff, H. V.

Modelling and simulation are at the heart of the rapidly developing field of systems biology. This paper reviews various types of models, simulation methods, and theoretical approaches that are...