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Ambigols A-C and tjipanazole D: bioinformatic analysis of their putative biosynthetic gene clusters
(2011-08-04)
Cyanobacteria are Gram negative, photoautotrophic bacteria, which are distinguished by an impressive array of chemically diverse natural products. The here investigated cyanobacterial strain of Fischerella ambigua was shown ...
Revealing the Mechanism of Thiopeptide Antibiotics at Atomistic Resolution: Implications for Rational Drug Design
(2012-07-18)
For decades drug design has primarily focused on small molecules that bind to well-formed tight binding pockets, such as the catalytic centers of enzymes. Recently, there is increasing interest to design compounds that ...
Novel Secondary Metabolites from Endophytic Marine-derived Fungi
(2011-02-22)
The marine environment is distinguished by unique groups of organisms being the source of a wide array of fascinating structures. Marine microorganisms, such as fungi often occur associated with macroorganisms like algae, ...
Zum Einfluss der Saponine aus Hedera helix L. auf die homologe Desensitivierung des β2-adrenergen Rezeptors und das Relaxationsverhalten der glatten Bronchialmuskulatur
(2010-05-19)
Präparate mit Efeublätter-Trockenextrakt sind zugelassen für die Therapie von akuten und chronischen Krankheiten der Atemwege, die durch eine vermehrte Schleimsekretion und Husten charakterisiert sind. Der Wirkungsmechanismus ...
Analytik und Eignung von Biomarkern zur Vorhersage der Wirksamkeit von Sunitinib mit Hilfe von pharmakokinetischen/pharmakodynamischen Modellen
(2013-05-07)
Im Rahmen der Dissertation sind die Analytik und die Eignung von Biomarkern (sVEGFR 2 und -3) zur Vorhersage der Wirksamkeit von Sunitinib mit Hilfe der PK/PD-Modellierung in einer multizentrischen Studie bei Patienten mit ...
Substratreduktionstherapie der Metachromatischen Leukodystrophie: Expression der Cerebrosid-Sulfotransferase und Etablierung einer hochdurchsatzfähigen Aktivitätsbestimmung
(2013-09-12)
Metachromatische Leukodystrophie (MLD) ist eine lysosomale Speichererkrankung, die durch die Defizienz des lysosomalen Enzyms Arylsulfatase A (ASA) verursacht wird. Normalerweise katalysiert die ASA den Abbau von ...
Synthesis of ganglioside and lysoganglioside lipoforms as internal standards for MS quantification
(2015-01-08)
The goal of this work was to establish methods for the synthesis of modified gangliosides that are suitable as internal standards for mass spectrometry. Quantification of gangliosides is usually achieved by staining after ...
Biosynthesis of soluble capsule precursors in Staphylococcus aureus
(2016-11-28)
Most invasive pathogens produce polysaccharide capsules, which play an essential role in conferring protection against host immune defense. In the case of Staphylococcus aureus, most clinical isolates are encapsulated, and ......
Chelation as a strategy with the potential to overcome multidrug resistance in cancer
(2016-09-02)
According to the World Health Organisation cancer is the second leading cause of death in industrialized countries. In many cases treatment fails due to the development of resistance against multiple (structurally and ...
Click-SELEX: A versatile approach towards nucleobase-modified aptamers
(2016-11-28)
Aptamers are short nucleic acids that can be selected to bind specifically and with high affinity to a variety of targets, including small organic molecules and proteins. However, for a multitude of targets, traditional ...