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Scheidel2016 - In Silico Knockout Studies of Xenophagy Capturing of Salmonella


ABSTRACT: Xenophagy, also known as antibacterial autophagy, is a process of capturing and eliminating cytosolic pathogens, like Salmonella. Salmonella is the best-studied model organism for xenophagy. We present a Petri net model of Salmonella xenophagy in epithelial cells. The model is based on functional information derived from literature data and contains all known processes of Salmonella xenophagy in epithelial. The model comprises the molecular mechanism of galectin-8-dependent and ubiquitin-dependent autophagy, including regulatory processes, like nutrient-dependent regulation of autophagy and TBK1-dependent activation of the autophagy receptor, OPTN. To model the activation of TBK1, we proposed a mechanism of TBK1 activation, suggesting a spatial and temporal regulation of this process. The Petri net is connected, covered by T-invariants, and each T-invariant has a meaningful biological interpretation. We checked the model structure for consistencies and correctness. We found 16 basic functional modules, which describe different pathways of the autophagic capturing of Salmonella and reflect the basic dynamics of the system. The PN model of Salmonella xenophagy comprises 61 places, including nine logical places, and 69 transitions connected by 184 arcs.

SUBMITTER: Nasrin Alikhani Chamgordani  

PROVIDER: MODEL1904150001 | BioModels Database | 2019-05-13

REPOSITORIES: BioModels

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Abstracts of the 36th Annual Meeting of the Society for Epidemiologic Research. Atlanta, Georgia, USA. June 11-14, 2003.

American journal of epidemiology 20030601 11 Suppl


Publication: 1/10

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