Medizin - Open Access LMU - Teil 05/22 - podcast cover

Medizin - Open Access LMU - Teil 05/22

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 5. von 22 Teilen der Sammlung 'Medizin - Open Access LMU'.)
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Episodes

Transport of proteins into mitochondria

The transfer of cytoplasmically synthesized precursor proteins into or across the inner mitochondrial membrane is dependent on energization of the membrane. To investigate the role of this energy requirement, a buffer system was developed in which efficient import of ADP/ATP carrier into mitochondria from the receptor-bound state occurred. This import was rapid and was dependent on divalent cations, whereas the binding of precursor proteins to the mitochondrial surface was slow and was independe...

Nov 01, 19850

Transport of proteins into mitochondria

Translocational intermediates of precursor proteins of ATPase F1β subunit and cytochrome c1 across mitochondrial membranes were analyzed using two different approaches, transport at low temperature and transport after binding of precursor proteins to antibodies. Under both conditions precursors were partially transported into mitochondria in an energy-dependent manner. They were processed by the metalloprotease in the matrix but a major proportion of the polypeptide chains was still present at t...

Nov 01, 19850

A water-soluble form of porin from the mitochondrial outer membrane of Neurospora crassa

Mitochondrial porin, the outer membrane pore-forming protein, was isolated in the presence of detergents and converted into a water- soluble form. This water-soluble porin existed under nondenaturing conditions as a mixture of dimers and oligomers. The proportion of dimers increased with decreasing porin concentration during conversion. Water-soluble porin inserted spontaneously into artificial bilayers as did detergent-solubilized porin. Whereas the latter form had no specific requirements for ...

Jul 05, 19850

Specific staining of human chromosomes in Chinese hamster x man hybrid cell lines demonstrates interphase chromosome territories

In spite of Carl Rabl's (1885) and Theodor Boveri's (1909) early hypothesis that chromosomes occupy discrete territories or domains within the interphase nucleus, evidence in favor pf this hypothesis has been limited and indirect so far in higher plants and animals. The alternative possibility that the chromatin fiber of single chromosomes might be extended throughout the major part of even the whole interphase nucleus has been considered for many years. In the latter case, chromosomes would onl...

Jan 01, 19850
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