Browsing GGNB - Göttinger Graduiertenzentrum für Neurowissenschaften, Biophysik und molekulare Biowissenschaften by Referee "Rodnina, Marina Prof. Dr."
Now showing items 1-20 of 30
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Regulation of human 48S initiation complex formation
(2024-04-23)During the initiation phase of protein synthesis in humans, the small ribosome subunit interacts with initiator tRNA (tRNAi) and at least ten different initiation factors (eIFs) to form the initiation complex. The initiation ... -
Release of a Natural mRNA During Recycling of the Prokaryotic Ribosome
(2023-06-20)Ribosome recycling is the last step of the bacterial translation cycle. The release of the peptide leaves a 70S ribosome with a deacylated tRNA in the P site and the stop codon of the mRNA in the A site. The combined action ... -
Biochemical reconstitution of human autophagy initiation
(2023-05-04)Autophagy is a tightly regulated process that eukaryotic cells use as a major survival mechanism to reallocate nutrients to essential processes in adverse conditions such as nutrient or energy deprivation. Autophagy is ... -
Cotranslational folding of HemK C-terminal domain
(2023-03-17)The correct folding of proteins is essential for the survival of the cell. Despite the importance of the question, it remains largely unclear how proteins, in particular large multidomain proteins with mixed α-helical and ... -
Co-translational processing and membrane insertion of proteins in bacteria
(2022-11-04)Protein biogenesis entails the synthesis of polypeptides on the ribosome, their co- and post-translational maturation, folding, and, in the case of membrane proteins, insertion into the lipid bilayer. Bacterial proteins ... -
Ribosome dynamics during spontaneous frameshifting
(2022-10-18)During protein synthesis, the ribosome moves along the mRNA in steps of three nucleotides at a time to maintain the translational reading frame. However, on some mRNA sequences that are denoted as slippery, ribosomes may ... -
Kinetic analysis of neuronal SNARE protein interactions
(2022-08-08)When an action potential arrives at the axon terminal, it causes a local and transient increase in the Ca2+ concentration that starts a cascade of molecular interactions eventually leading to the fusion of synaptic vesicles ... -
Structure-function analysis of human nucleotide excision DNA repair
(2021-04-09)An average human cell accumulates tens of thousands of DNA lesions per day. Therefore, DNA repair pathways are set up to continuously proofread the DNA and correct DNA lesions, thus ensuring accurate expression and ... -
Insights into the biogenesis of the human mitochondrial ribosomal large subunit – Characterisation of mL44 and mL45
(2020-11-16)Due to the presence of high-resolution cryo-EM structures of the human mitoribosome, the understanding about the function and assembly of the intriguing mitochondrial ribonucleoprotein complex increased tremendously during ... -
Development, characterization, and application of RNA catalysts for in situ labeling of target RNA molecules
(2020-08-07)RNA molecules play a diverse set of crucial roles in biological systems. Studying various aspects of RNA biology such as RNA transport, localization, degradation, and structural dynamics is therefore of utmost significance. ... -
Recoding of bacteriophage T4 gene 60 mRNA by programmed translational bypassing
(2020-07-28)During synthesis of a topoisomerase subunit encoded by the gene 60 of bacteriophage T4, the ribosome takes off from a certain codon, slides over a 50-nt non-coding segment of mRNA and resumes translation on a specific ... -
Mechanism of Ribosome Rescue by Alternative Release Factor B
(2020-07-09)Rescue of ribosomes stalled on non-stop mRNAs is essential in bacteria and in the mitochondria of all eukaryotes. The lack of a stop codon causes ribosomes to stall at the 3’ end of mRNA with an empty A site, and specialized ... -
Programmed Translational Readthrough in Drosophila melanogaster
(2020-06-05)Translational readthrough (TR) is extensively used by viruses to expand their limited genome capacity. The pervasiveness of TR across eukaryotic genomes is only recently being explored. Systems biology approaches such as ... -
Functional analyses of RNA helicases in human ribosome biogenesis
(2019-10-30)Eukaryotic ribosomes are essential ribonucleoprotein (RNP) complexes consisting of four ribosomal RNAs (18S, 5S, 5.8S, 28S/25S) and approximately 80 ribosomal proteins, which are required for the process of translating the ... -
Recoding of viral mRNAs by –1 programmed ribosome frameshifting
(2019-06-11)–1 programmed ribosome frameshifting (–1PRF) is commonly used in many viruses and cellular genes. The current study focuses on the –1PRF in two human viruses, human immunodeficiency virus type 1 (HIV-1) and Semliki Forest ... -
Structural Characterization of the Eukaryotic Translation Initiation by Electron Cryo-Microscopy
(2019-05-08)Translation is a highly conserved molecular process during which the genetic information stored in an mRNA molecule is translated into a polypeptide chain that eventually folds into functional three-dimensional proteins. ... -
Novel export and import pathways in S. cerevisiae identified by an engineered SUMO system
(2018-09-07)Nuclear transport receptors (NTRs) mediate the translocation of cargos between the cytoplasm and the nucleus. NTRs are classified either as importins or exportins according to the directionality of the cargo transport. To ... -
Mechanistic Characterization of Transaldolase from <i>Thermoplasma Acidophilum</i> and Preliminary Analysis of the QncN/L-M Protein System from <i>Streptomyces Melanovinaceus</i>
(2018-02-13)The results introduced in the present work are mainly based on the pre-steady state and steady-state analysis supported by structural information from crystallographic studies. Different variants of TacTAL were generated ... -
Import of proteins along the presequence pathway
(2017-12-01)The aim of this study was to investigate the mechanism of protein transport by the presequence translocase (TIM23) in the inner mitochondrial membrane. Presequencecontaining proteins are imported through the translocase ... -
Monitoring the late events of translation initiation in real-time
(2016-10-19)In bacteria, translation initiation is promoted by three initiation factors (IF1, IF2 and IF3) and entails three distinct steps. First, the small ribosomal subunit (30S) recruits the initiation factors, initiator tRNA ...