Browsing GGNB - Göttinger Graduiertenzentrum für Neurowissenschaften, Biophysik und molekulare Biowissenschaften by Referee "Rehling, Peter Prof. Dr."
Now showing items 1-20 of 32
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Analysis of early steps in Assembly of Cytochrome c Oxidase
(2014-12-18)Cytochrome c oxidase (COX) is the terminal enzyme of the respiratory chain. Due to its multimeric nature, assembly and maturation requires the concerted action of over 20 assembly factors in yeast. COX is composed of both ... -
Analysis of Mdm38 function in mitochondrial translation
(2015-11-05)The data presented in this thesis demonstrate that binding of Mdm38 to ribosomes has conserved characteristics in yeast and E. coli. To gain further insights into potential binding partners, an in vivo photo cross-linking ... -
Analysis of mitochondrial transcription and replication on the single nucleoid level
(2019-03-13)Human mitochondrial DNA (mtDNA) is a circular molecule encoding for 13 subunits of the respiratory chain that are essential for its maintenance. Inside the mitochondria, mtDNA is associated with various proteins, forming ... -
Analysis of translational fidelity in cellular proteins
(2019-03-27)The accuracy of protein biosynthesis determines the quality of the proteome and regulates the fitness of the cell. A comprehensive quantification of miscoding events in the cell is essential to understand the basic mechanisms ... -
Biochemical characterization of the Nup62⋅58⋅54 nucleoporin complex and mutational analysis of the exportin CRM1
(2014-10-15)Nuclear pore complexes (NPCs) are giant molecular machines embedded in the double membrane that surrounds the eukaryotic nucleus. Deciphering the molecular structure of the NPCs is critical to our understanding of both ... -
Characterization of RNA-modifying enzymes and their roles in diseases
(2017-11-29)More than 150 types of chemical modifications have been identified in cellular RNAs (collectively called ‘’the epitranscriptome’’), and such modifications have emerged as important regulators of gene expression. Despite ... -
CRISPR-Cas9-mediated protein tagging in human cells for RESOLFT nanoscopy and the analysis of mitochondrial prohibitins
(2016-12-13)Ectopic overexpression of fluorescent fusion proteins for live cell imaging studies often leads to a multitude of artefacts, but protein expression at endogenous levels in mammalian cells was difficult to achieve so far. ... -
Development of Nanobodies to Image Synaptic Proteins in Super-Resolution Microscopy
(2018-10-17)In the recent decades, super resolution microscopy substantially contributed to the investigation of subcellular structures. A prominent example is the molecular organization of the synapse which is known to be vital for ... -
Dynamic changes in cytochrome c oxidase assembly and organization
(2016-08-24)The respiratory chain in the inner membrane of the yeast mitochondrion is organized as a network of individual complexes and large supercomplex structures. These supercomplexes are composed of dimeric complex III and one ... -
Exploration of cargo spectrum and NES patterns recognized by the exportin CRM1
(2014-10-15)The nuclear envelope (NE) subdivides eukaryotic cells into a nuclear and a cytoplasmic compartment, forcing material exchange between these two compartments to proceed through the nuclear pore complexes (NPCs). While ... -
Identification of novel components involved in selective and unselective autophagic pathways
(2012-04-11)Autophagy is a ubiquitous protein degradation pathway in eukaryotic cells. As response upon nutrient starvation, cytosolic material and also whole organelles are engulfed by a double membrane-layered vesicle, the ... -
Insights into mitochondrial presequence and carrier import pathways
(2020-10-20)The mitochondria of yeast Saccharomyces cerevisiae contains more than 1000 proteins, majority of which are imported from the cytosol. The TIM23 and the TIM22 complexes in the inner mitochondrial membrane are essential ... -
Interactions and functions of RNA-binding proteins
(2018-04-13)Alongside several well-known modifications in DNA and proteins, more than 100 different types of chemical modification are also found in cellular RNAs. RNA modifications can influence the secondary structure and interactions ... -
Investigation of Mitochondrial Ribosome Regulators at the Inner Membrane
(2021-09-24)Mitochondrial biogenesis relies on the proper assembly of proteins from dual genetic origin. Nuclear-encoded proteins are imported into the organelle and incorporated into multiprotein complexes together with proteins ... -
Investigation of prokaryotic immune defense system with quantitative and structural mass spectrometry
(2016-02-26)Bacteria and archaea have evolved an adaptive and heritable immune defense system comprising a CRISPR (clustered regularly interspaced short palindromic repeats) locus and Cas (CRISPR-associated) proteins that targets ... -
Mitochondrial adaptation at the neuronal presynapse
(2021-11-22)Synaptic transmission poses a major energy consuming process in the brain, but how neurons maintain a constant energy supply during extended synaptic activity and how presynaptic mitochondria contribute to the energy ... -
Mitochondrial protein assemblies: Biogenesis of the cytochrome c oxidase and mitophagic signaling complexes
(2016-09-05)Mitochondrial physiology requires a constant balance between biosynthesis and degradation events. This thesis addresses both mitochondrial biogenesis, exemplified by cytochrome c oxidase assembly, and mitochondrial removal ... -
Molecular Characterization of the Mitochondrial Presequence Translocase
(2018-01-31)In this thesis, multiple pore-lining amino acid residues of the mitochondrial presequence translocation channel Tim23 were identified as constituents of the channel’s cation filter by combining single channel electrophysiology ... -
Molecular mechanisms of lipid-rich myelin membrane sheet formation
(2013-02-13)Myelin is a membrane of vital importance. In the vertebrate nervous system, it promotes rapid conduction of nerve impulses via insulating the axons. To act as an insulator, myelin needs to assemble into a stable, lipid-rich ... -
Nuclear export of actin: A biochemical and structural perspective
(2015-08-18)Macromolecular exchange between the nucleus and the cytoplasm is mainly mediated by the RanGTP-dependent nuclear transport receptors (NTRs) of the Impβ family. NTRs are classified as importins and exportins according to ...