Medizin - Open Access LMU - Teil 03/22 - podcast cover

Medizin - Open Access LMU - Teil 03/22

Ludwig-Maximilians-Universität Münchenepub.ub.uni-muenchen.de
Die Universitätsbibliothek (UB) verfügt über ein umfangreiches Archiv an elektronischen Medien, das von Volltextsammlungen über Zeitungsarchive, Wörterbücher und Enzyklopädien bis hin zu ausführlichen Bibliographien und mehr als 1000 Datenbanken reicht. Auf iTunes U stellt die UB unter anderem eine Auswahl an elektronischen Publikationen der Wissenschaftlerinnen und Wissenschaftler an der LMU bereit. (Dies ist der 3. von 22 Teilen der Sammlung 'Medizin - Open Access LMU'.)
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Episodes

Biogenesis of Glyoxysomes

Biosynthesis of isocitrate lyase, a tetrameric enzyme of the glyoxysomal matrix, was studied in Neurospora crassa, in which the formation of glyoxysomes was induced by a substitution of sucrose medium by acetate medium. * 1. Translation of Neurospora mRNA in reticulocyte lysates yields a product which has the same apparent molecular weight as the subunit of the functional enzyme. Using N-formyl[35S]methionyl tRNAMetf as a label, the translation product shows the same apparent size which indicate...

Nov 01, 19800

Biochemistry and functional aspects of human glandular kallikreins

Human urinary kallikrein was purified by gel filtration on Sephacryl S-200 and affinity chromatography on aprotinin-Sepharose, followed by ion exchange chromatography on DEAE-Sepharose. In dodecylsulfate gel electrophoresis two protein bands with molecular weights of 41,000 and 34,000 were separated. The amino acid composition and the carbohydrate content of the kallikrein preparation were determined; isoleucine was identified as the only aminoterminal amino acid. The bimolecular velocity consta...

Jan 01, 19800

Detection of laser-UV microirradiation-induced DNA photolesions by immunofluorescent staining

A low-power laser-UV microbeam of wave-length 257 nm was used for microirradiation of a small part of the nucleus of Chinese hamster cells. Following fixation in interphase or in the subsequent metaphase indirect immunofluorescent staining was performed with antiserum to photoproducts of DNA treated with far UV light. The results show that antibodies specific for UV-irradiated DNA can be used for a direct detection of laser-UV microirradiation-induced DNA photolesions. The potential usefulness o...

Jan 01, 19800

The correction for the gamma-ray component in neutron therapy

Neutron beams for therapy always contain some gamma ray contamination that varies with depth and with distance from the beam axis. The problem therefore arises how the varying gamma ray contribution should be accounted for in dose specification. Not infrequently a ``total effective dose'' DE is quoted that is equal to the neutron dose plus the gamma ray dose divided by a constant weight factor tau. On general biophysical considerations this appears to be not a valid approach since it must be ass...

Jan 01, 19800
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