Wilco P H Peeters

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An industrially attractive L-specific amidase was purified to homogeneity from Ochrobactrum anthropi NCIMB 40321 wild-type cells. The purified amidase displayed maximum initial activity between pH 6 and 8.5 and was fully stable for at least 1 h up to 60 degrees C. The purified enzyme was strongly inhibited by the metal-chelating compounds EDTA and(More)
A novel anamorphic species of yeast belonging to the genus Candida was isolated from tar in Canada. Morphological and physiological observations, as well as phylogenetic analyses, were performed. Conidiophores were produced, were usually short and had sympodial growth, numerous bud scars and a rachis-like structure. They bore one or more conidia.(More)
The metabolism of the natural amino acid l-valine, the unnatural amino acids d-valine, and d-, l-phenyglycine (d-, l-PG), and the unnatural amino acid amides d-, l-phenylglycine amide (d-, l-PG-NH2) and l-valine amide (l-Val-NH2) was studied in Pseudomonas putida ATCC 12633. The organism possessed constitutive l-amidase activities towards l-PG-NH2 and(More)
The alpha L of cortical and nuclear fiber cells have been studied using hydrodynamical and physicochemical techniques. From the sedimentation and the diffusion coefficients in identical conditions, it can be concluded that alpha L,N is appreciably larger than alpha L,C but both have a similar structure in solution: a spherical particle with a high(More)
Transaminases are useful biocatalysts for the production of amino acids and chiral amines as intermediates for a broad range of drugs and fine chemicals. Here, we describe the discovery and characterisation of new transaminases from microorganisms which were enriched in selective media containing (R)-amines as sole nitrogen source. While most of the(More)
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