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2017 ; 18
(Suppl 2
): 22
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Interactive exploration of ligand transportation through protein tunnels
#MMPMID28251878
Furmanová K
; Jare?ová M
; By?ka J
; Jur?ík A
; Parulek J
; Hauser H
; Kozlíková B
BMC Bioinformatics
2017[Feb]; 18
(Suppl 2
): 22
PMID28251878
show ga
BACKGROUND: Protein structures and their interaction with ligands have been in
the focus of biochemistry and structural biology research for decades. The
transportation of ligand into the protein active site is often complex process,
driven by geometric and physico-chemical properties, which renders the ligand
path full of jitter and impasses. This prevents understanding of the ligand
transportation and reasoning behind its behavior along the path. RESULTS: To
address the needs of the domain experts we design an explorative visualization
solution based on a multi-scale simplification model. It helps to navigate the
user to the most interesting parts of the ligand trajectory by exploring
different attributes of the ligand and its movement, such as its distance to the
active site, changes of amino acids lining the ligand, or ligand "stuckness". The
process is supported by three linked views - 3D representation of the simplified
trajectory, scatterplot matrix, and bar charts with line representation of
ligand-lining amino acids. CONCLUSIONS: The usage of our tool is demonstrated on
molecular dynamics simulations provided by the domain experts. The tool was
tested by the domain experts from protein engineering and the results confirm
that it helps to navigate the user to the most interesting parts of the ligand
trajectory and to understand the ligand behavior.