WIESNER, Jiří, Zdeněk KŘÍŽ and Jaroslav KOČA. Structure and dynamics of sarin-inhibited acetylcholinesterase. In Strukturní biofyzika makromolekul. Brno: Biofyzikálny ústav AVČR a MU v Brne, 2005, p. 21-21.
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Basic information
Original name Structure and dynamics of sarin-inhibited acetylcholinesterase
Name in Czech Struktura a dynamika acetylcholinesterázy inhibované sarinem
Authors WIESNER, Jiří (203 Czech Republic, guarantor), Zdeněk KŘÍŽ (203 Czech Republic) and Jaroslav KOČA (203 Czech Republic).
Edition Brno, Strukturní biofyzika makromolekul, p. 21-21, 1 pp. 2005.
Publisher Biofyzikálny ústav AVČR a MU v Brne
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10403 Physical chemistry
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14330/05:00013286
Organization unit Faculty of Informatics
Keywords in English computational chemistry;computer modeling;molecular dynamics;MD;acetycholinesterase;AChE;nerve agent;irreversible inhibition;sarin
Tags acetycholinesterase, AChE, computational chemistry, computer modeling, irreversible inhibition, MD, molecular dynamics, nerve agent, sarin
Changed by Changed by: RNDr. JUDr. Vladimír Šmíd, CSc., učo 1084. Changed: 27/4/2006 20:09.
Abstract
Serine protease acetylcholinesterase (AChE, EC 3.1.1.7) is one of the most crucial enzymes for nerve response and function. In cholinergic nervous system, AChE terminates transmission of neuronal impulses by catalysing the hydrolysis of neurotransmitter, acetylcholine. It is one of the most efficient enzymes ever known. Highly toxic organophosphorus compounds, such as sarin, soman or tabun (nerve agents), are able to inhibit AChE by phosphonylation of its active site serine. Severe nerve agent intoxication leads to muscle spasms, cessation of breathing and instantaneous death. Structure of nerve agent inhibited AChE is not exactly known although one crystallographic structure (1SOM) of soman inhibited AChE was published. Thus a model of sarin inhibited mouse AChE was constructed and molecular dynamics was calculated to further characterize its properties. The explicit solvent molecular dynamics simulation under NPT conditions was performed by the Amber program suite. Simulation temperature was 300K and TIP3P water model was used. The stability of secondary structures and interactions of residues in AChE active site during molecular dynamics were analysed.
Abstract (in Czech)
Struktura a dynamika acetylcholinesterázy inhibované sarinem
Links
GD204/03/H016, research and development projectName: Strukturní biofyzika makromolekul
Investor: Czech Science Foundation, Structural biophysics of macromolecules
MSM0021622413, plan (intention)Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment
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