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Guadalupe-Medina, V. (author), Wisselink, H.W. (author), Luttik, M.A.H. (author), De Hulster, E. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)Background Redox-cofactor balancing constrains product yields in anaerobic fermentation processes. This challenge is exemplified by the formation of glycerol as major by-product in yeast-based bioethanol production, which is a direct consequence of the need to reoxidize excess NADH and causes a loss of conversion efficiency. Enabling the use of...journal article 2013
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Kuijpers, N.G. (author), Solis-Escalante, D. (author), Bosman, L. (author), Van den Broek, M. (author), Pronk, J.T. (author), Daran, J.M. (author), Daran-Lapujade, P.A.S. (author)Background: In vivo recombination of overlapping DNA fragments for assembly of large DNA constructs in the yeast Saccharomyces cerevisiae holds great potential for pathway engineering on a small laboratory scale as well as for automated high-throughput strain construction. However, the current in vivo assembly methods are not consistent with...journal article 2013
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Gonzalez-Ramos, D. (author), Van den Broek, M. (author), Van Maris, A.J.A. (author), Pronk, J.T. (author), Daran, J.M.G. (author)Background n-Butanol and isobutanol produced from biomass-derived sugars are promising renewable transport fuels and solvents. Saccharomyces cerevisiae has been engineered for butanol production, but its high butanol sensitivity poses an upper limit to product titers that can be reached by further pathway engineering. A better understanding of...journal article 2013
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Daran, J.M. (author), Pronk, J.T. (author)In this feature, leading researchers in the field of environmental microbiology speculate on the technical and conceptual developments that will drive innovative research and open new vistas over the next few years. For the better part of four decades, genetic engineering has relied on a universal toolbox containing three indispensable...journal article 2012
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Solis-Escalante, D. (author), Kuijpers, N.G.A. (author), Bongaerts, N. (author), Bolat, I. (author), Bosman, L. (author), Pronk, J.T. (author), Daran, J.M. (author), Daran-Lapujade, P.A.S. (author)Despite the large collection of selectable marker genes available for Saccharomyces cerevisiae, marker availability can still present a hurdle when dozens of genetic manipulations are required. Recyclable markers, counterselectable cassettes that can be removed from the targeted genome after use, are therefore valuable assets in ambitious...journal article 2012
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Koopman, F.W. (author), Beekwilder, J. (author), Crimi, B. (author), Van Houwelingen, A. (author), Hall, R.D. (author), Bosch, D. (author), Van Maris, A.J.A. (author), Pronk, J.T. (author), Daran, J.M. (author)Background Flavonoids comprise a large family of secondary plant metabolic intermediates that exhibit a wide variety of antioxidant and human health-related properties. Plant production of flavonoids is limited by the low productivity and the complexity of the recovered flavonoids. Thus to overcome these limitations, metabolic engineering of...journal article 2012
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Oud, B. (author), Flores, C.L. (author), Gancedo, C. (author), Zhang, X. (author), Trueheart, J. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)Background Pyruvate-decarboxylase negative (Pdc-) strains of Saccharomyces cerevisiae combine the robustness and high glycolytic capacity of this yeast with the absence of alcoholic fermentation. This makes Pdc-S. cerevisiae an interesting platform for efficient conversion of glucose towards pyruvate-derived products without formation of ethanol...journal article 2012
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Romagnoli, G. (author), Luttik, M.A.H. (author), Kötter, P. (author), Pronk, J.T. (author), Daran, J.M. (author)Fusel alcohols are precursors and contributors to flavor and aroma compounds in fermented beverages, and some are under investigation as biofuels. The decarboxylation of 2-oxo acids is a key step in the Ehrlich pathway for fusel alcohol production. In Saccharomyces cerevisiae, five genes share sequence similarity with genes encoding thiamine...journal article 2012
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De Kok, S. (author), Yilmaz, D. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)Plasma membrane H+-ATPase isoforms with increased H+/ATP ratios represent a desirable asset in yeast metabolic engineering. In vivo proton coupling of two previously reported Pma1p isoforms (Ser800Ala, Glu803Gln) with increased in vitro H+/ATP stoichiometries was analysed by measuring biomass yields of anaerobic maltose-limited chemostat...journal article 2012
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Veiga, T. (author), Nijland, J.G. (author), Driessen, A.J.M. (author), Bovenberg, R.A.L. (author), Touw, H. (author), Van den Berg, M.A. (author), Pronk, J.T. (author), Daran, J.M. (author)The multicomponent global regulator Velvet complex has been identified as a key regulator of secondary metabolite production in Aspergillus and Penicillium species. Previous work indicated a massive impact of PcvelA and PclaeA deletions on penicillin production in prolonged batch cultures of P. chrysogenum, as well as substantial changes in...journal article 2012
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Veiga, T. (author), Gombert, A.K. (author), Landes, N. (author), Verhoeven, M.D. (author), Kiel, J.A.K.W. (author), Krikken, A. (author), Nijland, J.G. (author), Touw, H. (author), Luttik, M.A.H. (author), Van der Toorn, J.C. (author), Driessen, A.J.M. (author), Bovenberg, R.A.L. (author), Van den Berg, M.A. (author), Van der Klei, I.J. (author), Pronk, J.T. (author), Daran, J.M. (author)Industrial production of semi-synthetic cephalosporins by Penicillium chrysogenum requires supplementation of the growth media with the side-chain precursor adipic acid. In glucose-limited chemostat cultures of P. chrysogenum, up to 88% of the consumed adipic acid was not recovered in cephalosporin-related products, but used as an additional...journal article 2012
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Nijkamp, J.F. (author), Van den Broek, M.A. (author), Datema, E. (author), De Kok, S. (author), Bosman, L. (author), Luttik, M.A.H. (author), Daran-Lapujade, P.A.S. (author), Vongsangnak, W. (author), Nielsen, J. (author), Heijne, W.H.M. (author), Klaassen, P. (author), Paddon, C.J. (author), Platt, D. (author), Kötter, P. (author), Van Ham, R.C. (author), Reinders, M.J.T. (author), Pronk, J.T. (author), De Ridder, D. (author), Daran, J.M. (author)Saccharomyces cerevisiae CEN.PK 113-7D is widely used for metabolic engineering and systems biology research in industry and academia. We sequenced, assembled, annotated and analyzed its genome. Single-nucleotide variations (SNV), insertions/deletions (indels) and differences in genome organization compared to the reference strain S. cerevisiae...journal article 2012
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Veiga, T. (author), Solis-Escalante, D. (author), Romagnoli, G. (author), Ten Pierick, A. (author), Hanemaaijer, M. (author), Deshmuhk, A. (author), Wahl, A. (author), Pronk, J.T. (author), Daran, J.M. (author)The industrial production of penicillin G by Penicillium chrysogenum requires the supplementation of the growth medium with the side chain precursor phenylacetate. The growth of P. chrysogenum with phenylalanine as the sole nitrogen source resulted in the extracellular production of phenylacetate and penicillin G. To analyze this natural pathway...journal article 2011
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Douma, R.D. (author), Batista, J.M. (author), Touw, K.M. (author), Kiel, J.A.K.W. (author), Krikken, A.M. (author), Zhao, Z. (author), Veiga, T. (author), Klaassen, P. (author), Bovenberg, R.A.L. (author), Daran, J.M. (author), Heijnen, J.J. (author), Van Gulik, W.M. (author)Background In microbial production of non-catabolic products such as antibiotics a loss of production capacity upon long-term cultivation (for example chemostat), a phenomenon called strain degeneration, is often observed. In this study a systems biology approach, monitoring changes from gene to produced flux, was used to study degeneration of...journal article 2011
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Livas, D. (author), Almering, M.J.H. (author), Daran, J.M. (author), Pronk, J.J. (author), Gancedo, J.M. (author)Background The pattern of gene transcripts in the yeast Saccharomyces cerevisiae is strongly affected by the presence of glucose. An increased activity of protein kinase A (PKA), triggered by a rise in the intracellular concentration of cAMP, can account for many of the effects of glucose on transcription. In S. cerevisiae three genes, TPK1,...journal article 2011
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Daran, J.M. (author), Pronk, J.T. (author), Driessen, A.J.M. (author), Nijland, J.G. (author), Lamboo, F. (author), Puig-Martinez, M. (author), Veiga, T. (author), Gombert, A.K. (author)Penicillium chrysogenum is widely used as an industrial antibiotic producer, in particular in the synthesis of ß-lactam antibiotics such as penicillins and cephalosporins. In industrial processes, oxalic acid formation leads to reduced product yields. Moreover, precipitation of calcium oxalate complicates product recovery. We observed oxalate...journal article 2011
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Nijkamp, J.F. (author), Winterbach, W. (author), Van den Broek, M. (author), Daran, J.M. (author), Reinders, M.J.T. (author), De Ridder, D. (author)De novo assembly of a eukaryotic genome with next-generation sequencing data is still a challenging task. Over the past few years several assemblers have been developed, often suitable for one specific type of sequencing data. The number of known genomes is expanding rapidly, therefore it becomes possible to use multiple reference genomes for...journal article 2010
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Hazelwood, L.A. (author), Walsh, M.C. (author), Pronk, J.T. (author), Daran, J.M. (author)The hop plant, Humulus lupulus L., has an exceptionally high content of secondary metabolites, the hop -acids, which possess a range of beneficial properties, including antiseptic action. Studies performed on the mode of action of hop iso--acids have hitherto been restricted to lactic acid bacteria. The present study investigated molecular...journal article 2009
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Hazelwood, L.A. (author), Walsh, M.C. (author), Luttik, M.A.H. (author), Daran-Lapujade, P. (author), Pronk, J.T. (author), Daran, J.M. (author)OA Fund TU Delft Accumulation of glycogen and trehalose in nutrient-limited cultures of Saccharomyces cerevisiae is negatively correlated with the specific growth rate. Additionally, glucose-excess conditions (i.e., growth limitation by nutrients other than glucose) are often implicated in high-level accumulation of these storage carbohydrates....journal article 2009
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Harris, D.M. (author), Van der Krogt, Z.A. (author), Klaassen, P. (author), Raamsdonk, L.M. (author), Hage, S. (author), Van den Berg, M.A. (author), Bovenberg, R.A.L. (author), Pronk, J.T. (author), Daran, J.M. (author)OA Fund TU Delft Background Since the discovery of the antibacterial activity of penicillin by Fleming 80 years ago, improvements of penicillin titer were essentially achieved by classical strain improvement through mutagenesis and screening. The recent sequencing of Penicillium chrysogenum strain Wisconsin1255-54 and the availability of...journal article 2009