Open Source MATLAB Molecular Mechanics Software

This is a subproject of TrajLab which is probably the first attempt for a general purpose molecular simulation package in MATLAB. While the authors are aware that many other highly specialized and highly optimized program packages for the same purpose exist (e. g. AMBER, GROMACS, NAMD, etc.), the MATLAB environment offers easy access to manipulating the codes, testing novel algorithms, non-standard force fields and performing all kinds of numerical experiments. To be used mainly in research and teaching! Started early 2010, MetaStable is still in an early (alpha) stage, and any help in further development is highly appreciated. Developed by B. Schmidt (FUB), F. Haack, S. Röblitz, and M. Weber (ZIB)

This is a subproject of TrajLab which is probably the first attempt for a general purpose molecular simulation package in MATLAB. While the authors are aware that many other highly specialized and highly optimized program packages for the same purpose exist (e. g. AMBER, GROMACS, NAMD, etc.), the MATLAB environment offers easy access to manipulating the codes, testing novel algorithms, non-standard force fields and performing all kinds of numerical experiments. To be used mainly in research and teaching! Started early 2010, MolDynSim is still in an early (alpha) stage, and any help in further development is highly appreciated. Developed mainly by B. Schmidt (FUB)

TrajLab (which stands for TRAJectory LABoratory) consists of two sets of MATLAB program packages. While subproject MolDynSim deals with generation of molecular trajectories (and other aspects of molecular simulation), subproject MetaStable is dedicated to the analysis of molecular trajectories by detecting metastable conformations (as well as other analysis techniques). Note that each of the two sub-projects has its own SVN repository, wiki, tracker, etc: Probably TrajLab is the first attempt for a general purpose molecular simulation package in MATLAB. While the authors are aware that many other highly specialized and highly optimized program packages for the same purpose exist (e. g. AMBER, GROMACS, NAMD, etc.), the MATLAB environment offers easy access to manipulating the codes, testing novel algorithms, non-standard force fields and performing all kinds of numerical experiments. To be used mainly in teaching!

An ensemble of mathematical model is presented that all show diauxic growth behaviour of a bacterial culture. Carbon catabolite repression (CCR) is the main mechanism controlling carbohydrate uptake in bacteria, and therefore also controlling whether or not different carbon sources are metabolized in parallel or sequentially. Although described as a paradigm of the regulation of bacterial metabolism, the underlying mechanisms remain controversial. The models in the ensemble can be categorized according to regulatory, stoichiometric, and physiological constraints and differ from each other on only a single aspect. We distinguish four groups of models: (1) flux balance models that only define reaction kinetics for substrate uptake and by-product excretion, (2) kinetic models without and (3) kinetic models with regulation on the metabolic and/or genetic level, and (4) resource allocation models.