Search Results - "Baas, Jan"
-
1
Bee sensitivity derived from acute contact tests biased by standardised protocols?
Published in Ecotoxicology and environmental safety (15-10-2024)“…In an acute contact test with bees the compound of interest is dissolved in a carrier solvent (frequently acetone) and then a droplet of the solution is placed…”
Get full text
Journal Article -
2
Comparing bee species responses to chemical mixtures: Common response patterns?
Published in PloS one (22-06-2017)“…Pollinators in agricultural landscapes can be exposed to mixtures of pesticides and environmental pollutants. Existing mixture toxicity modelling approaches,…”
Get full text
Journal Article -
3
Using mutability landscapes of a promiscuous tautomerase to guide the engineering of enantioselective Michaelases
Published in Nature communications (08-03-2016)“…The Michael-type addition reaction is widely used in organic synthesis for carbon–carbon bond formation. However, biocatalytic methodologies for this type of…”
Get full text
Journal Article -
4
Bridging between Organocatalysis and Biocatalysis: Asymmetric Addition of Acetaldehyde to β-Nitrostyrenes Catalyzed by a Promiscuous Proline-Based Tautomerase
Published in Angewandte Chemie International Edition (27-01-2012)“…Non‐natural beauty: The enzyme 4‐oxalocrotonate tautomerase (4‐OT) promiscuously (i.e., with non‐natural activity) catalyzes the Michael‐type addition of…”
Get full text
Journal Article -
5
Self-Sufficient Baeyer-Villiger Monooxygenases: Effective Coenzyme Regeneration for Biooxygenation by Fusion Engineering
Published in Angewandte Chemie (International ed.) (07-03-2008)“…Two‐in‐one biocatalysts were engineered by the covalent fusion of NADPH‐dependent Baeyer–Villiger monooxygenases to a phosphite dehydrogenase for coenzyme…”
Get full text
Journal Article -
6
Recent Advances in the Study of Enzyme Promiscuity in the Tautomerase Superfamily
Published in Chembiochem : a European journal of chemical biology (27-05-2013)“…Catalytic promiscuity and evolution: Many enzymes exhibit catalytic promiscuity—the ability to catalyze reactions other than their biologically relevant one…”
Get full text
Journal Article -
7
Aqueous Oxidative Heck Reaction as a Protein-Labeling Strategy
Published in Chembiochem : a European journal of chemical biology (24-01-2014)“…An increasing number of chemical reactions are being employed for bio‐orthogonal ligation of detection labels to protein‐bound functional groups. Several of…”
Get full text
Journal Article -
8
Kinetic Mechanism of Phenylacetone Monooxygenase from Thermobifida fusca
Published in Biochemistry (Easton) (01-04-2008)“…Phenylacetone monooxygenase (PAMO) from Thermobifida fusca is a FAD-containing Baeyer-Villiger monooxygenase (BVMO). To elucidate the mechanism of conversion…”
Get full text
Journal Article -
9
Systematic Screening for Catalytic Promiscuity in 4-Oxalocrotonate Tautomerase: Enamine Formation and Aldolase Activity
Published in Chembiochem : a European journal of chemical biology (07-03-2011)“…The enzyme 4‐oxalocrotonate tautomerase (4‐OT) is part of a catabolic pathway for aromatic hydrocarbons in Pseudomonas putida mt‐2, where it catalyzes the…”
Get full text
Journal Article -
10
biology-based approach for mixture toxicity of multiple endpoints over the life cycle
Published in Ecotoxicology (London) (01-02-2010)“…Typical approaches for analyzing mixture ecotoxicity data only provide a description of the data; they cannot explain observed interactions, nor explain why…”
Get full text
Journal Article -
11
Mutations Closer to the Active Site Improve the Promiscuous Aldolase Activity of 4-Oxalocrotonate Tautomerase More Effectively than Distant Mutations
Published in Chembiochem : a European journal of chemical biology (01-07-2016)“…The enzyme 4‐oxalocrotonate tautomerase (4‐OT), which catalyzes enol–keto tautomerization as part of a degradative pathway for aromatic hydrocarbons,…”
Get full text
Journal Article -
12
An Unexpected Promiscuous Activity of 4-Oxalocrotonate Tautomerase: The cis-trans Isomerisation of Nitrostyrene
Published in Chembiochem : a European journal of chemical biology (03-09-2012)“…Serendipitous switch: While exploring cis‐nitrostyrene as a potential electrophile in Michael‐type addition reactions catalysed by the enzyme 4‐oxalocrotonate…”
Get full text
Journal Article -
13
Dehalogenation of an Anthropogenic Compound by an Engineered Variant of the Mouse Cytokine Macrophage Migration Inhibitory Factor
Published in Chembiochem : a European journal of chemical biology (18-06-2012)“…An unconventional dehalogenase: An engineered variant (I64V/V106L) of the mouse cytokine macrophage migration inhibitory factor (MIF) promiscuously catalyzes…”
Get full text
Journal Article -
14
Introduction of Asymmetry in the Fused 4‑Oxalocrotonate Tautomerases
Published in Biochemistry (Easton) (15-08-2023)“…Members of the 4-oxalocrotonate tautomerase (4-OT) subgroup in the tautomerase superfamily (TSF) are constructed from a single β–α–β unit and form homo- or…”
Get full text
Journal Article -
15
Demethionylation of Pro-1 variants of 4-oxalocrotonate tautomerase in Escherichia coli by co-expression with an engineered methionine aminopeptidase
Published in FEBS open bio (01-01-2014)“…An amino-terminal proline analogue: The enzyme 4-oxalocrotonate tautomerase (4-OT) is characterized by a catalytic N-terminal proline. The substitution of…”
Get full text
Journal Article -
16
Kinetic, Inhibition, and Structural Characterization of a Malonate Semialdehyde Decarboxylase-like Protein from Calothrix sp. PCC 6303: A Gateway to the non-Pro1 Tautomerase Superfamily Members
Published in Biochemistry (Easton) (07-06-2022)“…The amino-terminal proline (Pro1) has long been thought to be a mechanistic imperative for tautomerase superfamily (TSF) enzymes, functioning as a general base…”
Get full text
Journal Article -
17
A global view of structure–function relationships in the tautomerase superfamily
Published in The Journal of biological chemistry (16-02-2018)“…The tautomerase superfamily (TSF) consists of more than 11,000 nonredundant sequences present throughout the biosphere. Characterized members have attracted…”
Get full text
Journal Article -
18
Kinetic and Structural Analysis of Two Linkers in the Tautomerase Superfamily: Analysis and Implications
Published in Biochemistry (Easton) (08-06-2021)“…The tautomerase superfamily (TSF) is a collection of enzymes and proteins that share a simple β–α–β structural scaffold. Most members are constructed from a…”
Get full text
Journal Article -
19
Identification of 6-benzyloxysalicylates as a novel class of inhibitors of 15-lipoxygenase-1
Published in European journal of medicinal chemistry (13-04-2015)“…Lipoxygenases metabolize polyunsaturated fatty acids into signalling molecules such as leukotrienes and lipoxins. 15-lipoxygenase-1 (15-LOX-1) is an important…”
Get full text
Journal Article -
20
Kinetic and structural characterization of a cis-3-Chloroacrylic acid dehalogenase homologue in Pseudomonas sp. UW4: A potential step between subgroups in the tautomerase superfamily
Published in Archives of biochemistry and biophysics (15-12-2017)“…A Pseudomonas sp. UW4 protein (UniProt K9NIA5) of unknown function was identified as similar to 4-oxalocrotonate tautomerase (4-OT)-like and…”
Get full text
Journal Article