- Glycosylation and Glycoproteins Research
- RNA and protein synthesis mechanisms
- Clostridium difficile and Clostridium perfringens research
- Toxin Mechanisms and Immunotoxins
- Carbohydrate Chemistry and Synthesis
- Vibrio bacteria research studies
- RNA modifications and cancer
- Enzyme Production and Characterization
- Bacterial Genetics and Biotechnology
- Erythrocyte Function and Pathophysiology
- Antimicrobial Resistance in Staphylococcus
- Blood groups and transfusion
- Pneumocystis jirovecii pneumonia detection and treatment
- Enzyme Structure and Function
- PARP inhibition in cancer therapy
- RNA Research and Splicing
- Fungal Infections and Studies
- Musculoskeletal pain and rehabilitation
- Escherichia coli research studies
- Antifungal resistance and susceptibility
- Antibiotic Resistance in Bacteria
- Galectins and Cancer Biology
- Genomics and Phylogenetic Studies
- Monoclonal and Polyclonal Antibodies Research
- Helminth infection and control
Roskilde University
2021-2025
Statens Serum Institut
2012-2021
Aarhus University
2000-2018
University College South Denmark
2014-2017
Carlsberg Laboratory
2010-2015
University of Guelph
2005-2013
Skåne University Hospital
2010
Institute for Transfusion Medicine
2010
University of Pittsburgh
2010
Swiss Red Cross
2010
The ADP-ribosyltransferases are a class of enzymes that display activity in variety bacterial pathogens responsible for causing diseases plants and animals, including those affecting mankind, such as diphtheria, cholera, whooping cough. We report the characterization novel toxin from Vibrio cholerae, which we call cholix toxin. is active against mammalian cells (IC50 = 4.6 ± 0.4 ng/ml) crustaceans (Artemia nauplii LD50 10 2 μg/ml). Here show this third member diphthamide-specific ADP-ribose...
In recent years, cases involving terbinafine-resistant Trichophyton isolates have been reported increasingly, particularly in India. We present 14 of terbinafine treatment failure Trichophyton-infected Danish patients due to acquired resistance. Patients infected with rubrum (n = 12) or interdigitale 2) elevated MICs during 2013-2018 were included. Antifungal susceptibility testing (AFST) was performed following a modified EUCAST E.Def 9.3.1 method (5 days incubation) without cycloheximide...
The reliability of clinical tests for the cervical spine has not been adequately evaluated. Six tests, which are low cost and easy to perform in settings, were tested intra- inter-examiner reliability, two performance assessed test-retest people with without chronic neck pain. Moreover, construct between-group discriminative validity examined. Twenty-one participants pain 21 asymptomatic included. Intra- inter-reliability evaluated Cranio-Cervical Flexion Test (CCFT), Range Movement (ROM),...
ObjectivesThe objective of this study was to characterize the underlying molecular mechanisms in consecutive clinical Candida albicans isolates from a single patient displaying stepwise-acquired multidrug resistance.
Isavuconazole (ISZ) is used in the treatment of aspergillosis and mucormycosis. The purpose this study was to evaluate therapeutic drug monitoring (TDM) ISZ samples from a clinical setting performed at Statens Serum Institut. Materials/methods: serum concentrations were determined by fluorescent detection on UHPLC. Serum-ISZ (s-ISZ) results included compared those serum-voriconazole (s-VRZ) 33 month period March 2017. Clinical data obtained for patients receiving ISZ. range initially 2–10...
eEF2 (eukaryotic elongation factor 2) occupies an essential role in protein synthesis where it catalyses the translocation of two tRNAs and mRNA after peptidyl transfer on 80 S ribosome. Recent crystal structures cryo-electron microscopy reconstruction its complex now provide a substantial structural framework for dissecting functional properties this factor. The can be modified by either phosphorylation or ADP-ribosylation, which results cessation translation. We review with particular...
Responsiveness of a clinical test is highly relevant in order to evaluate the effect given intervention. However, responsiveness tests for people with neck pain has not been adequately evaluated. The objective present study was examine four which are low cost and easy perform setting, including craniocervical flexion test, cervical active range movement, extensors pressure threshold testing. This secondary analysis data collected previously published randomised controlled trial. Participants...
Four novel nontuberculous mycobacteria were discovered from a historical strain collection at the International Reference Laboratory of Mycobacteriology Statens Serum Institut in Copenhagen, Denmark. Phylogenetic analysis combining 16S rrs , internal transcribed spacer and 23S rrl elements, as well single-copy core-gene ( hsp65 rpoB+C secA tuf ) these freeze-dried mycobacteria, clinically isolated gastric lavage samples between 1948 1955, showed to be associated with type strains grouping...
The mono-ADPRT (mono-ADP-ribosyltransferase), Pseudomonas aeruginosa ETA (exotoxin A), catalyses the transfer of ADP-ribose from NAD+ to its protein substrate. A series water-soluble compounds that structurally mimic nicotinamide moiety was investigated for their inhibition catalytic domain ETA. importance an amide locked into a hetero-ring structure and core system is planar trend evident by IC50 values. Also, weaker inhibitors have ring structures are less thus more flexible. One most...
The 1061delC single-nucleotide polymorphism (SNP) has been reported mostly in the context of common A(2)[A201] allele and typically produces an A(2) phenotype. This study evaluated new A(weak) alleles, each containing 1061delC.Twenty samples were referred to our laboratory for analysis due suspected phenotypes originally detected at referring centers. ABO Exons 1 through 7 flanking intronic regions sequenced. A antigen expression on red blood cells was analyzed by flow cytometry. Plasma...
The crystal structure of ADP-ribosylated yeast elongation factor 2 in the presence sordarin and GDP has been determined at 2.6 A resolution. diphthamide tip domain IV, which is target for diphtheria toxin Pseudomonas aeruginosa exotoxin A, contains a covalently attached ADP-ribose that functions as very potent inhibitor factor. We have obtained an electron density map translation revealing both ADP-ribosylation diphthamide. This first showing conformation residue confirms inversion...
In the West of Scotland epidemiology parasitic bronchitis in grazing calves was studied over a two year period with aid tracer and herbage examinations for Dictyocaulus viviparus larvae. The observations both years emphasised importance overwintered lungworm larvae as source disease. first it shown that ingestion development these were, by themselves, directly responsible severe morbidity, high faecal larval counts deaths. second pasture ungrazed during winter spring from which hay crop...
The mono-ADP-ribosyltransferase toxins are bacterial virulence factors that contribute to many disease states in plants, animals, and humans. These function as enzymes target various host proteins covalently attach an ADP-ribose moiety alters protein function. We tested compounds from a virtual screen of commercially available combined with directed poly(ADP-ribose) polymerase (PARP) inhibitor library found several bind tightly inhibit Pseudomonas aeruginosa Vibrio cholerae. most efficacious...
Crystals of the Saccharomyces cerevisiae elongation factor 2 (eEF2) in complex with GDP were obtained vapour-diffusion technique after rapid purification from industrial yeast. The crystals diffract to 2.85 Å and belong space group P212121. A yeast strain expressing a functional histidine-tagged eEF2 as only form protein further allows facilitated for both structural studies.
The emergence of bacterial antibiotic resistance poses a significant challenge in the pursuit novel therapeutics, making new strategies for drug discovery imperative. We have developed yeast growth-defect phenotypic screen to help solve this current dilemma. This approach facilitates identification and characterization diphtheria toxin (DT) group, ADP-ribosyltransferase toxins from pathogenic bacteria. In addition, assay utilizes Saccharomyces cerevisiae, reliable model expression,...
A fragmented approach: 3-Phenyl-5-piperazino-1,2,4-thiadiazole (designated “compound 382” in the Ro5 Maybridge Fragment Library, see scheme) is demonstrated to be an effective inhibitor of human blood group glycosyltransferase B. The compound interferes with both acceptor and donor binding also displaces Mn2+ ion pocket. Glycosyltransferases (GTs) are ubiquitous enzymes that form glycosidic bonds by transfer monosaccharides from donors, typically nucleotide sugar carbohydrate, protein,...