@misc{BrechunWoolleyArndt2017,
  author    = {Brechun, Katherine E. and Woolley, Andrew and Arndt, Katja Maren},
  title     = {A Bacterial Bandpass Assay for Protein-Protein Interactions},
  series = {Protein science : a publication of the Protein Society},
  volume    = {26},
  journal   = {Protein science : a publication of the Protein Society},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {0961-8368},
  pages     = {198 -- 198},
  year      = {2017},
  language  = {en}
}
@article{WolffZhangHaagenDeckeretal.2017,
  author    = {Wolff, Martin and Zhang-Haagen, Bo and Decker, Christina and Barz, Bogdan and Schneider, Mario and Biehl, Ralf and Radulescu, Aurel and Strodel, Birgit and Willbold, Dieter and Nagel-Steger, Luitgard},
  title     = {A beta 42 pentamers/hexamers are the smallest detectable oligomers in solution},
  series = {Scientific reports},
  volume    = {7},
  journal   = {Scientific reports},
  publisher = {Nature Publ. Group},
  address   = {London},
  issn      = {2045-2322},
  doi       = {10.1038/s41598-017-02370-3},
  pages     = {13},
  year      = {2017},
  language  = {en}
}
@article{NiemeyerEppStoofLeichsenringetal.2017,
  author    = {Niemeyer, Bastian and Epp, Laura Saskia and Stoof-Leichsenring, Kathleen Rosemarie and Pestryakova, Luidmila Agafyevna and Herzschuh, Ulrike},
  title     = {A comparison of sedimentary DNA and pollen from lake sediments in recording vegetation composition at the Siberian treeline},
  series = {Molecular ecology resources},
  volume    = {17},
  journal   = {Molecular ecology resources},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {1755-098X},
  doi       = {10.1111/1755-0998.12689},
  pages     = {e46 -- e62},
  year      = {2017},
  abstract  = {Reliable information on past and present vegetation is important to project future changes, especially for rapidly transitioning areas such as the boreal treeline. To study past vegetation, pollen analysis is common, while current vegetation is usually assessed by field surveys. Application of detailed sedimentary DNA (sedDNA) records has the potential to enhance our understanding of vegetation changes, but studies systematically investigating the power of this proxy are rare to date. This study compares sedDNA metabarcoding and pollen records from surface sediments of 31 lakes along a north-south gradient of increasing forest cover in northern Siberia (Taymyr peninsula) with data from field surveys in the surroundings of the lakes. sedDNA metabarcoding recorded 114 plant taxa, about half of them to species level, while pollen analyses identified 43 taxa, both exceeding the 31 taxa found by vegetation field surveys. Increasing Larix percentages from north to south were consistently recorded by all three methods and principal component analyses based on percentage data of vegetation surveys and DNA sequences separated tundra from forested sites. Comparisons of the ordinations using procrustes and protest analyses show a significant fit among all compared pairs of records. Despite similarities of sedDNA and pollen records, certain idiosyncrasies, such as high percentages of Alnus and Betula in all pollen and high percentages of Salix in all sedDNA spectra, are observable. Our results from the tundra to single-tree tundra transition zone show that sedDNA analyses perform better than pollen in recording site-specific richness (i.e., presence/absence of taxa in the vicinity of the lake) and perform as well as pollen in tracing vegetation composition.},
  language  = {en}
}
@article{HentrichTaabacheBrezesinskietal.2017,
  author    = {Hentrich, Doreen and Taabache, Soraya and Brezesinski, Gerald and Lange, Nele and Unger, Wolfgang and Kuebel, Christian and Bertin, Annabelle and Taubert, Andreas},
  title     = {A Dendritic Amphiphile for Efficient Control of Biomimetic Calcium Phosphate Mineralization},
  series = {Macromolecular bioscience},
  volume    = {17},
  journal   = {Macromolecular bioscience},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1616-5187},
  doi       = {10.1002/mabi.201600524},
  pages     = {2541 -- 2548},
  year      = {2017},
  abstract  = {The phase behavior of a dendritic amphiphile containing a Newkome-type dendron as the hydrophilic moiety and a cholesterol unit as the hydrophobic segment is investigated at the air-liquid interface. The amphiphile forms stable monomolecular films at the airliquid interface on different subphases. Furthermore, the mineralization of calcium phosphate beneath the monolayer at different calcium and phosphate concentrations versus mineralization time shows that at low calcium and phosphate concentrations needles form, whereas flakes and spheres dominate at higher concentrations. Energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and electron diffraction confirm the formation of calcium phosphate. High-resolution transmission electron microscopy and electron diffraction confirm the predominant formation of octacalcium phosphate and hydroxyapatite. The data also indicate that the final products form via a complex multistep reaction, including an association step, where nano-needles aggregate into larger flake-like objects.},
  language  = {en}
}
@article{SharmaRuelensMaggenetal.2017,
  author    = {Sharma, Neha and Ruelens, Philip and Maggen, Thomas and Dochy, Niklas and Torfs, Sanne and Kaufmann, Kerstin and Rohde, Antje and Geuten, Koen},
  title     = {A Flowering Locus C Homolog Is a Vernalization-Regulated Repressor in Brachypodium and Is Cold Regulated in Wheat},
  series = {Plant physiology : an international journal devoted to physiology, biochemistry, cellular and molecular biology, biophysics and environmental biology of plants},
  volume    = {173},
  journal   = {Plant physiology : an international journal devoted to physiology, biochemistry, cellular and molecular biology, biophysics and environmental biology of plants},
  number    = {2},
  publisher = {American Society of Plant Physiologists},
  address   = {Rockville},
  issn      = {0032-0889},
  doi       = {10.1104/pp.16.01161},
  pages     = {1301 -- 1315},
  year      = {2017},
  abstract  = {Winter cereals require prolonged cold to transition from vegetative to reproductive development. This process, referred to as vernalization, has been extensively studied in Arabidopsis (Arabidopsis thaliana). In Arabidopsis, a key flowering repressor called FLOWERING LOCUS C (FLC) quantitatively controls the vernalization requirement. By contrast, in cereals, the vernalization response is mainly regulated by the VERNALIZATION genes, VRN1 and VRN2. Here, we characterize ODDSOC2, a recently identified FLC ortholog in monocots, knowing that it belongs to the FLC lineage. By studying its expression in a diverse set of Brachypodium accessions, we find that it is a good predictor of the vernalization requirement. Analyses of transgenics demonstrated that BdODDSOC2 functions as a vernalization-regulated flowering repressor. In most Brachypodium accessions BdODDSOC2 is down-regulated by cold, and in one of the winter accessions in which this down-regulation was evident, BdODDSOC2 responded to cold before BdVRN1. When stably down-regulated, the mechanism is associated with spreading H3K27me3 modifications at the BdODDSOC2 chromatin. Finally, homoeolog-specific gene expression analyses identify TaAGL33 and its splice variant TaAGL22 as the FLC orthologs in wheat (Triticum aestivum) behaving most similar to Brachypodium ODDSOC2. Overall, our study suggests that ODDSOC2 is not only phylogenetically related to FLC in eudicots but also functions as a flowering repressor in the vernalization pathway of Brachypodium and likely other temperate grasses. These insights could prove useful in breeding efforts to refine the vernalization requirement of temperate cereals and adapt varieties to changing climates.},
  language  = {en}
}
@misc{ColomboWackerParrishetal.2017,
  author    = {Colombo, Stefanie M. and Wacker, Alexander and Parrish, Christopher C. and Kainz, Martin J. and Arts, Michael T.},
  title     = {A fundamental dichotomy in long-chain polyunsaturated fatty acid abundance between and within marine and terrestrial ecosystems},
  series = {Environmental reviews = Dossiers environnement},
  volume    = {25},
  journal   = {Environmental reviews = Dossiers environnement},
  publisher = {NRC Research Press},
  address   = {Ottawa},
  issn      = {1208-6053},
  doi       = {10.1139/er-2016-0062},
  pages     = {163 -- 174},
  year      = {2017},
  abstract  = {Polyunsaturated fatty acids (PUFA), especially long-chain (i.e., >= 20 carbons) polyunsaturated fatty acids (LC-PUFA), are fundamental to the health and survival of marine and terrestrial organisms. Therefore, it is imperative that we gain a better understanding of their origin, abundance, and transfer between and within these ecosystems. We evaluated the natural variation in PUFA distribution and abundance that exists between and within these ecosystems by amassing and analyzing, using multivariate and analysis of variance (ANOVA) methods, >3000 fatty acid (FA) profiles from marine and terrestrial organisms. There was a clear dichotomy in LC-PUFA abundance between organisms in marine and terrestrial ecosystems, mainly driven by the C-18 PUFA in terrestrial organisms and omega-3 (n-3) LC-PUFA in marine organisms. The PUFA content of an organism depended on both its biome (marine vs terrestrial) and taxonomic group. Within the marine biome, the PUFA content varied among taxonomic groups. PUFA content of marine organisms was dependent on both geographic zone (i.e., latitude, and thus broadly related to temperature) and trophic level (a function of diet). The contents of n-3 LC-PUFA were higher in polar and temperate marine organisms than those from the tropics. Therefore, we conclude that, on a per capita basis, high latitude marine organisms provide a disproportionately large global share of these essential nutrients to consumers, including terrestrial predators. Our analysis also hints at how climate change, and other anthropogenic stressors, might act to negatively impact the global distribution and abundance of n-3 LC-PUFA within marine ecosystems and on the terrestrial consumers that depend on these subsidies.},
  language  = {en}
}
@article{LahLoeberHsiangetal.2017,
  author    = {Lah, Ljerka and L{\"o}ber, Ulrike and Hsiang, Tom and Hartmann, Stefanie},
  title     = {A genomic comparison of putative pathogenicity-related gene families in five members of the Ophiostomatales with different lifestyles},
  series = {Fungal biology},
  volume    = {121},
  journal   = {Fungal biology},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {1878-6146},
  doi       = {10.1016/j.funbio.2016.12.002},
  pages     = {234 -- 252},
  year      = {2017},
  abstract  = {Ophiostomatoid fungi are vectored by their bark-beetle associates and colonize different host tree species. To survive and proliferate in the host, they have evolved mechanisms for detoxification and elimination of host defence compounds, efficient nutrient sequestration, and, in pathogenic species, virulence towards plants. Here, we assembled a draft genome of the spruce pathogen Ophiostoma bicolor. For our comparative and phylogenetic analyses, we mined the genomes of closely related species (Ophiostoma piceae, Ophiostoma ulmi, Ophiostoma novo-ulmi, and Grosmannia clavigera). Our aim was to acquire a genomic and evolutionary perspective of gene families important in host colonization. Genome comparisons showed that both the nuclear and mitochondrial genomes in our assembly were largely complete. Our O. bicolor 25.3 Mbp draft genome had 10 018 predicted genes, 6041 proteins with gene ontology (GO) annotation, 269 carbohydrate-active enzymes (CAZymes), 559 peptidases and inhibitors, and 1373 genes likely involved in pathogen-host interactions. Phylogenetic analyses of selected protein families revealed core sets of cytochrome P450 genes, ABC transporters and backbone genes involved in secondary metabolite (SM) biosynthesis (polyketide synthases (PKS) and non-ribosomal synthases), and species-specific gene losses and duplications. Phylogenetic analyses of protein families of interest provided insight into evolutionary adaptations to host biochemistry in ophiostomatoid fungi.},
  language  = {en}
}
@misc{DortayMuellerRoeber2017,
  author    = {Dortay, Hakan and M{\"u}ller-R{\"o}ber, Bernd},
  title     = {A highly efficient pipeline for protein expression in Leishmania tarentolae using infrared fluorescence protein as marker},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-400876},
  pages     = {10},
  year      = {2017},
  abstract  = {Background: Leishmania tarentolae, a unicellular eukaryotic protozoan, has been established as a novel host for recombinant protein production in recent years. Current protocols for protein expression in Leishmania are, however, time consuming and require extensive lab work in order to identify well-expressing cell lines. Here we established an alternative protein expression work-flow that employs recently engineered infrared fluorescence protein (IFP) as a suitable and easy-to-handle reporter protein for recombinant protein expression in Leishmania. As model proteins we tested three proteins from the plant Arabidopsis thaliana, including a NAC and a type-B ARR transcription factor. Results: IFP and IFP fusion proteins were expressed in Leishmania and rapidly detected in cells by deconvolution microscopy and in culture by infrared imaging of 96-well microtiter plates using small cell culture volumes (2 mu L - 100 mu L). Motility, shape and growth of Leishmania cells were not impaired by intracellular accumulation of IFP. In-cell detection of IFP and IFP fusion proteins was straightforward already at the beginning of the expression pipeline and thus allowed early pre-selection of well-expressing Leishmania clones. Furthermore, IFP fusion proteins retained infrared fluorescence after electrophoresis in denaturing SDS-polyacrylamide gels, allowing direct in-gel detection without the need to disassemble cast protein gels. Thus, parameters for scaling up protein production and streamlining purification routes can be easily optimized when employing IFP as reporter. Conclusions: Using IFP as biosensor we devised a protocol for rapid and convenient protein expression in Leishmania tarentolae. Our expression pipeline is superior to previously established methods in that it significantly reduces the hands-on-time and work load required for identifying well-expressing clones, refining protein production parameters and establishing purification protocols. The facile in-cell and in-gel detection tools built on IFP make Leishmania amenable for high-throughput expression of proteins from plant and animal sources.},
  language  = {en}
}
@article{WestburyBalekaBarlowetal.2017,
  author    = {Westbury, Michael V. and Baleka, Sina Isabelle and Barlow, Axel and Hartmann, Stefanie and Paijmans, Johanna L. A. and Kramarz, Alejandro and Forasiepi, Analia M. and Bond, Mariano and Gelfo, Javier N. and Reguero, Marcelo A. and Lopez-Mendoza, Patricio and Taglioretti, Matias and Scaglia, Fernando and Rinderknecht, Andres and Jones, Washington and Mena, Francisco and Billet, Guillaume and de Muizon, Christian and Luis Aguilar, Jose and MacPhee, Ross D. E. and Hofreiter, Michael},
  title     = {A mitogenomic timetree for Darwin's enigmatic South American mammal Macrauchenia patachonica},
  series = {Nature Communications},
  volume    = {8},
  journal   = {Nature Communications},
  publisher = {Nature Publ. Group},
  address   = {London},
  issn      = {2041-1723},
  doi       = {10.1038/ncomms15951},
  pages     = {8},
  year      = {2017},
  abstract  = {The unusual mix of morphological traits displayed by extinct South American native ungulates (SANUs) confounded both Charles Darwin, who first discovered them, and Richard Owen, who tried to resolve their relationships. Here we report an almost complete mitochondrial genome for the litoptern Macrauchenia. Our dated phylogenetic tree places Macrauchenia as sister to Perissodactyla, but close to the radiation of major lineages within Laurasiatheria. This position is consistent with a divergence estimate of B66Ma (95\% credibility interval, 56.64-77.83 Ma) obtained for the split between Macrauchenia and other Panperissodactyla. Combined with their morphological distinctiveness, this evidence supports the positioning of Litopterna (possibly in company with other SANU groups) as a separate order within Laurasiatheria. We also show that, when using strict criteria, extinct taxa marked by deep divergence times and a lack of close living relatives may still be amenable to palaeogenomic analysis through iterative mapping against more distant relatives.},
  language  = {en}
}
@misc{KocyanWilandSzymanska2017,
  author    = {Kocyan, Alexander and Wiland-Szymanska, Justyna},
  title     = {A new name and a new combination for Friedmannia nom. illeg. (Hypoxidaceae)},
  series = {Phytotaxa : a rapid international journal for accelerating the publication of botanical taxonomy},
  volume    = {291},
  journal   = {Phytotaxa : a rapid international journal for accelerating the publication of botanical taxonomy},
  number    = {3},
  publisher = {Magnolia Press},
  address   = {Auckland},
  issn      = {1179-3155},
  doi       = {10.11646/phytotaxa.291.3.10},
  pages     = {239 -- 239},
  year      = {2017},
  abstract  = {Recently, Kocyan \& Wiland-Szymańska (2016) have published a thorough research article on one of the outstanding members of the family Hypoxidaceae on the Seychelles, which resulted in the raise of a new genus (Friedmannia Kocyan \& Wiland-Szymańska 2016: 60) to accommodate the former Curculigo seychellensis Bojer ex Baker (1877: 368). However, it has turned out that the name Friedmannia Chantanachat \& Bold (1962: 45) already exists in literature for a green alga, which renders the new hypoxid genus illegitimate (Melbourne Code; McNeill et al. 2012). Therefore, we assign a new generic epithet to Curculigo seychellensis.},
  language  = {en}
}
@article{VandenWyngaertSetoRojasJimenezetal.2017,
  author    = {Van den Wyngaert, Silke and Seto, Kensuke and Rojas-Jimenez, Keilor and Kagami, Maiko and Grossart, Hans-Peter},
  title     = {A New Parasitic Chytrid, Staurastromyces oculus (Rhizophydiales, Staurastromy-cetaceae fam. nov.), Infecting the Freshwater Desmid Staurastrum sp.},
  series = {Protist},
  volume    = {168},
  journal   = {Protist},
  publisher = {Elsevier},
  address   = {Jena},
  issn      = {1434-4610},
  doi       = {10.1016/j.protis.2017.05.001},
  pages     = {392 -- 407},
  year      = {2017},
  abstract  = {Chytrids are a diverse group of ubiquitous true zoosporic fungi. The recent molecular discovery of a large diversity of undescribed chytrids has raised awareness on their important, but so far understudied ecological role in aquatic ecosystems. In the pelagic zone, of both freshwater and marine ecosystems, many chytrid species have been morphologically described as parasites on almost all major groups of phytoplankton. However, the majority of these parasitic chytrids has rarely been isolated and lack DNA sequence data, resulting in a large proportion of "dark taxa" in databases. Here, we report on the isolation and in-depth morphological, molecular and host range characterization of a chytrid infecting the common freshwater desmid Staurastrum sp. We provide first insights on the metabolic activity of the different chytrid development stages by using the vital dye FUN (R)-1 (2-chloro-4-[2,3-dihydro-3-methyl-[benzo-1,3-thiazol-2-yl]-methylidene]-1-phenylquinolinium iodide). Cross infection experiments suggest that this chytrid is an obligate parasite and specific for the genus Staurastrum sp. Phylogenetic analysis, based on ITS1-5.8S-ITS2 and 28S rDNA sequences, placed it in the order Rhizophydiales. Based on the unique zoospore ultrastructure, combined with thallus morphology, and molecular phylogenetic placement, we describe this parasitic chytrid as a new genus and species Staurastromyces oculus, within a new family Staurastromycetaceae. (C) 2017 Elsevier GmbH. All rights reserved.},
  language  = {en}
}
@article{LuetkecosmannWarsinkeTschoepeetal.2017,
  author    = {L{\"u}tkecosmann, Steffi and Warsinke, Axel and Tsch{\"o}pe, Winfried and Eichler, R{\"u}diger and Hanack, Katja},
  title     = {A novel monoclonal antibody suitable for the detection of leukotriene B4},
  series = {Biochemical and biophysical research communications},
  volume    = {482},
  journal   = {Biochemical and biophysical research communications},
  number    = {4},
  publisher = {Elsevier},
  address   = {San Diego},
  issn      = {0006-291X},
  doi       = {10.1016/j.bbrc.2016.11.157},
  pages     = {1054 -- 1059},
  year      = {2017},
  abstract  = {Leukotriene B4 as an inflammatory mediator is an important biomarker for different respiratory diseases like asthma, chronic obstructive pulmonary disease or cystic lung fibrosis. Therefore the detection of LTB4 is helpful in the diagnosis of these pulmonary diseases. However, until now its determination in exhaled breath condensates suffers from problems of accuracy. Reasons for that could be improper sample collection and preparation methods of condensates and the lack of consistently assay specificity and reproducibility of the used immunoassay detection system. In this study we describe the development and the characterization of a specific monoclonal antibody (S27BC6) against LTB4, its use as molecular recognition element for the development of an enzyme-linked immunoassay to detect LTB4 and discuss possible future diagnostic applications.},
  language  = {en}
}
@article{AbrahamczykLozadaGobilardAckermannetal.2017,
  author    = {Abrahamczyk, Stefan and Lozada Gobilard, Sissi Donna and Ackermann, Markus and Fischer, Eberhard and Krieger, Vera and Redling, Almut and Weigend, Maximilian},
  title     = {A question of data quality-Testing pollination syndromes in Balsaminaceae},
  series = {PLoS one},
  volume    = {12},
  journal   = {PLoS one},
  publisher = {PLoS},
  address   = {San Fransisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0186125},
  pages     = {14},
  year      = {2017},
  abstract  = {Pollination syndromes and their predictive power regarding actual plant-animal interactions have been controversially discussed in the past. We investigate pollination syndromes in Balsaminaceae, utilizing quantitative respectively categorical data sets of flower morphometry, signal and reward traits for 86 species to test for the effect of different types of data on the test patterns retrieved. Cluster Analyses of the floral traits are used in combination with independent pollinator observations. Based on quantitative data we retrieve seven clusters, six of them corresponding to plausible pollination syndromes and one additional, well-supported cluster comprising highly divergent floral architectures. This latter cluster represents a non-syndrome of flowers not segregated by the specific data set here used. Conversely, using categorical data we obtained only a rudimentary resolution of pollination syndromes, in line with several earlier studies. The results underscore that the use of functional, exactly quanitified trait data has the power to retrieve pollination syndromes circumscribed by the specific data used. Data quality can, however, not be replaced by sheer data volume. With this caveat, it is possible to identify pollination syndromes from large datasets and to reliably extrapolate them for taxa for which direct observations are unavailable.},
  language  = {en}
}
@misc{KappelCuongNguyenHuuLenhard2017,
  author    = {Kappel, Christian and Cuong Nguyen Huu, and Lenhard, Michael},
  title     = {A short story gets longer: recent insights into the molecular basis of heterostyly},
  series = {Journal of experimental botany},
  volume    = {68},
  journal   = {Journal of experimental botany},
  publisher = {Oxford Univ. Press},
  address   = {Oxford},
  issn      = {0022-0957},
  doi       = {10.1093/jxb/erx387},
  pages     = {5719 -- 5730},
  year      = {2017},
  abstract  = {Heterostyly is a fascinating adaptation to promote outbreeding and a classical paradigm of botany. In the most common type of heterostyly, plants either form flowers with long styles and short stamens, or short styles and long stamens. This reciprocal organ positioning reduces pollen wastage and promotes cross-pollination, thus increasing male fitness. In addition, in many heterostylous species selfing and the generation of unfit progeny due to inbreeding depression is limited by a self-incompatibility system, thus promoting female fitness. The two floral forms are genetically determined by the S locus as a complex supergene, namely a chromosomal region containing several individual genes that control the different traits, such as style or stamen length, and are held together by very tight linkage due to suppressed recombination. Recent molecular-genetic studies in several systems, including Turnera, Fagopyrum, Linum, and Primula have begun to identify and characterize the causal heterostyly genes residing at the S locus. An emerging theme from several families is that the dominant S haplotype represents a hemizygous region not present on the recessive s haplotype. This provides an explanation for the suppressed recombination and suggests a scenario for the chromosomal evolution of the S locus. In this review, we discuss the results from recent molecular-genetic analyses in light of the classical models on the genetics and evolution of heterostyly.},
  language  = {en}
}
@article{FotiDorendorfLeimkuehler2017,
  author    = {Foti, Alessandro and Dorendorf, Frank and Leimk{\"u}hler, Silke},
  title     = {A single nucleotide polymorphism causes enhanced radical oxygen species production by human aldehyde oxidase},
  series = {PLoS one},
  volume    = {12},
  journal   = {PLoS one},
  publisher = {PLoS},
  address   = {San Fransisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0182061},
  pages     = {18338 -- 18347},
  year      = {2017},
  abstract  = {Aldehyde oxidases (AOXs) are molybdo-flavoenzymes characterized by broad substrate specificity, oxidizing aromatic/aliphatic aldehydes into the corresponding carboxylic acids and hydroxylating various heteroaromatic rings. The enzymes use oxygen as the terminal electron acceptor and produce reduced oxygen species during turnover. The physiological function of mammalian AOX isoenzymes is still unclear, however, human AOX (hAOX1) is an emerging enzyme in phase-I drug metabolism. Indeed, the number of xenobiotics acting as hAOX1 substrates is increasing. Further, numerous single-nucleotide polymorphisms (SNPs) have been identified within the hAOX1 gene. SNPs are a major source of inter-individual variability in the human population, and SNP-based amino acid exchanges in hAOX1 reportedly modulate the catalytic function of the enzyme in either a positive or negative fashion. In this report we selected ten novel SNPs resulting in amino acid exchanges in proximity to the FAD site of hAOX1 and characterized the purified enzymes after heterologous expression in Escherichia coli. The hAOX1 variants were characterized carefully by quantitative differences in their ability to produce superoxide radical. ROS represent prominent key molecules in physiological and pathological conditions in the cell. Our data reveal significant alterations in superoxide anion production among the variants. In particular the SNP-based amino acid exchange L438V in proximity to the isoalloxanzine ring of the FAD cofactor resulted in increased rate of superoxide radical production of 75\%. Considering the high toxicity of the superoxide in the cell, the hAOX1-L438V SNP variant is an eventual candidate for critical or pathological roles of this natural variant within the human population.},
  language  = {en}
}
@article{FernandezNinoGiraldoLuciaGomezPorrasetal.2017,
  author    = {Fernandez-Nino, Miguel and Giraldo, Daniel and Lucia Gomez-Porras, Judith and Dreyer, Ingo and Gonzalez Barrios, Andres Fernando and Arevalo-Ferro, Catalina},
  title     = {A synthetic multi-cellular network of coupled self-sustained oscillators},
  series = {PLoS one},
  volume    = {12},
  journal   = {PLoS one},
  publisher = {PLoS},
  address   = {San Fransisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0180155},
  pages     = {11},
  year      = {2017},
  abstract  = {Engineering artificial networks from modular components is a major challenge in synthetic biology. In the past years, single units, such as switches and oscillators, were successfully constructed and implemented. The effective integration of these parts into functional artificial self-regulated networks is currently on the verge of breakthrough. Here, we describe the design of a modular higher-order synthetic genetic network assembled from two independent self-sustained synthetic units: repressilators coupled via a modified quorum-sensing circuit. The isolated communication circuit and the network of coupled oscillators were analysed in mathematical modelling and experimental approaches. We monitored clustering of cells in groups of various sizes. Within each cluster of cells, cells oscillate synchronously, whereas the theoretical modelling predicts complete synchronization of the whole cellular population to be obtained approximately after 30 days. Our data suggest that self-regulated synchronization in biological systems can occur through an intermediate, long term clustering phase. The proposed artificial multicellular network provides a system framework for exploring how a given network generates a specific behaviour.},
  language  = {en}
}
@article{HoffmannWohltatMuelleretal.2017,
  author    = {Hoffmann, Stefan A. and Wohltat, Christian and M{\"u}ller, Kristian M. and Arndt, Katja Maren},
  title     = {A user-friendly, low-cost turbidostat with versatile growth rate estimation based on an extended Kalman filter},
  series = {PLoS one},
  volume    = {12},
  journal   = {PLoS one},
  number    = {7},
  publisher = {PLoS},
  address   = {Lawrence, Kan.},
  issn      = {1932-6203},
  doi       = {10.1371/JOURNAL.PONE.0181923},
  pages     = {1 -- 15},
  year      = {2017},
  abstract  = {For various experimental applications, microbial cultures at defined, constant densities are highly advantageous over simple batch cultures. Due to high costs, however, devices for continuous culture at freely defined densities still experience limited use. We have developed a small-scale turbidostat for research purposes, which is manufactured from inexpensive components and 3D printed parts. A high degree of spatial system integration and a graphical user interface provide user-friendly operability. The used optical density feedback control allows for constant continuous culture at a wide range of densities and offers to vary culture volume and dilution rates without additional parametrization. Further, a recursive algorithm for on-line growth rate estimation has been implemented. The employed Kalman filtering approach based on a very general state model retains the flexibility of the used control type and can be easily adapted to other bioreactor designs. Within several minutes it can converge to robust, accurate growth rate estimates. This is particularly useful for directed evolution experiments or studies on metabolic challenges, as it allows direct monitoring of the population fitness.},
  language  = {en}
}
@misc{HoffmannWohltatMuelleretal.2017,
  author    = {Hoffmann, Stefan A. and Wohltat, Christian and M{\"u}ller, Kristian M. and Arndt, Katja Maren},
  title     = {A user-friendly, low-cost turbidostat with versatile growth rate estimation based on an extended Kalman filter},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-403406},
  pages     = {15},
  year      = {2017},
  abstract  = {For various experimental applications, microbial cultures at defined, constant densities are highly advantageous over simple batch cultures. Due to high costs, however, devices for continuous culture at freely defined densities still experience limited use. We have developed a small-scale turbidostat for research purposes, which is manufactured from inexpensive components and 3D printed parts. A high degree of spatial system integration and a graphical user interface provide user-friendly operability. The used optical density feedback control allows for constant continuous culture at a wide range of densities and offers to vary culture volume and dilution rates without additional parametrization. Further, a recursive algorithm for on-line growth rate estimation has been implemented. The employed Kalman filtering approach based on a very general state model retains the flexibility of the used control type and can be easily adapted to other bioreactor designs. Within several minutes it can converge to robust, accurate growth rate estimates. This is particularly useful for directed evolution experiments or studies on metabolic challenges, as it allows direct monitoring of the population fitness.},
  language  = {en}
}
@article{HoffmannWohltatMuelleretal.2017,
  author    = {Hoffmann, Stefan A. and Wohltat, Christian and Mueller, Kristian M. and Arndt, Katja Maren},
  title     = {A user-friendly, low-cost turbidostat with versatile growth rate estimation based on an extended Kalman filter},
  series = {PLoS one},
  volume    = {12},
  journal   = {PLoS one},
  publisher = {PLoS},
  address   = {San Fransisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0181923},
  pages     = {5944 -- 5952},
  year      = {2017},
  abstract  = {For various experimental applications, microbial cultures at defined, constant densities are highly advantageous over simple batch cultures. Due to high costs, however, devices for continuous culture at freely defined densities still experience limited use. We have developed a small-scale turbidostat for research purposes, which is manufactured from inexpensive components and 3D printed parts. A high degree of spatial system integration and a graphical user interface provide user-friendly operability. The used optical density feedback control allows for constant continuous culture at a wide range of densities and offers to vary culture volume and dilution rates without additional parametrization. Further, a recursive algorithm for on-line growth rate estimation has been implemented. The employed Kalman filtering approach based on a very general state model retains the flexibility of the used control type and can be easily adapted to other bioreactor designs. Within several minutes it can converge to robust, accurate growth rate estimates. This is particularly useful for directed evolution experiments or studies on metabolic challenges, as it allows direct monitoring of the population fitness.},
  language  = {en}
}
@misc{KniggeWengerBieretal.2017,
  author    = {Knigge, Xenia and Wenger, C. and Bier, Frank Fabian and H{\"o}lzel, Ralph},
  title     = {AC electrokinetic immobilisation of nanoobjects as individual singles in regular arrays},
  series = {European biophysics journal : with biophysics letters ; an international journal of biophysics},
  volume    = {46},
  journal   = {European biophysics journal : with biophysics letters ; an international journal of biophysics},
  publisher = {Springer},
  address   = {New York},
  issn      = {0175-7571},
  pages     = {S187 -- S187},
  year      = {2017},
  language  = {en}
}