User profiles for Gergely Katona

Gergely Katona

Full Professor, University of Gothenburg
Verified email at gu.se
Cited by 4947

Fast two-photon in vivo imaging with three-dimensional random-access scanning in large tissue volumes

G Katona, G Szalay, P Maák, A Kaszás, M Veress… - Nature …, 2012 - nature.com
The understanding of brain computations requires methods that read out neural activity on
different spatial and temporal scales. Following signal propagation and integration across a …

High-resolution protein structure determination by serial femtosecond crystallography

…, CY Hampton, MS Hunter, LC Johansson, G Katona… - Science, 2012 - science.org
Structure determination of proteins and other macromolecules has historically required the
growth of high-quality crystals sufficiently large to diffract x-rays efficiently while withstanding …

[HTML][HTML] Microglia protect against brain injury and their selective elimination dysregulates neuronal network activity after stroke

…, E Császár, R Fekete, BL West, G Katona… - Nature …, 2016 - nature.com
Microglia are the main immune cells of the brain and contribute to common brain diseases.
However, it is unclear how microglia influence neuronal activity and survival in the injured …

Natively Inhibited Trypanosoma brucei Cathepsin B Structure Determined by Using an X-ray Laser

…, MS Hunter, LC Johansson, S Kassemeyer, G Katona… - Science, 2013 - science.org
The Trypanosoma brucei cysteine protease cathepsin B (TbCatB), which is involved in host
protein degradation, is a promising target to develop new treatments against sleeping …

Spine neck plasticity regulates compartmentalization of synapses

J Třnnesen, G Katona, B Rózsa, UV Nägerl - Nature neuroscience, 2014 - nature.com
Dendritic spines have been proposed to transform synaptic signals through chemical and
electrical compartmentalization. However, the quantitative contribution of spine morphology to …

Release probability of hippocampal glutamatergic terminals scales with the size of the active zone

N Holderith, A Lorincz, G Katona, B Rózsa, A Kulik… - Nature …, 2012 - nature.com
Cortical synapses have structural, molecular and functional heterogeneity; our knowledge
regarding the relationship between their ultrastructural and functional parameters is still …

[HTML][HTML] Accurate spike estimation from noisy calcium signals for ultrafast three-dimensional imaging of large neuronal populations in vivo

T Deneux, A Kaszas, G Szalay, G Katona… - Nature …, 2016 - nature.com
Extracting neuronal spiking activity from large-scale two-photon recordings remains challenging,
especially in mammals in vivo, where large noises often contaminate the signals. We …

Visualizing a protein quake with time-resolved X-ray scattering at a free-electron laser

…, RL Shoeman, D Wang, D James, G Katona… - Nature …, 2014 - nature.com
We describe a method to measure ultrafast protein structural changes using time-resolved
wide-angle X-ray scattering at an X-ray free-electron laser. We demonstrated this approach …

[PDF][PDF] Localized neuron stimulation with organic electrochemical transistors on delaminating depth probes

…, P Quilichini, J Rivnay, B Rózsa, G Katona… - Advanced …, 2015 - academia.edu
DOI: 10.1002/adma. 201500218 channel to the hippocampus to stimulate targeted populations
of neurons with no degradation in transistor performance. In addition, neurons located as …

Lipidic phase membrane protein serial femtosecond crystallography

LC Johansson, D Arnlund, TA White, G Katona… - Nature …, 2012 - nature.com
X-ray free electron laser (X-FEL)-based serial femtosecond crystallography is an emerging
method with potential to rapidly advance the challenging field of membrane protein structural …