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DRAFT VERSION

= 2 Some Simple Kinetic Modelling in ScrumPy =
Before you start you may wish to revise the [[http://mudshark.brookes.ac.uk/Meetings/Delhi2012/Practicals/Practical_2/PyIntro|introduction to Python]] from last year's workshop. Starting ScrumPy and loading a model are described in last year's [[http://mudshark.brookes.ac.uk/Meetings/Delhi2012/Practicals/Practical_2/ScrumPyIntro|ScrumPy introduction]] from Practical 2.

== 2.0 Preparation ==
 1. Create a directory in your home area called "Practical_2"
 {{{
$ mkdir Practical_2
}}}

 1. cd into this and create 3 more directories: "Revers", "Irrev", and "Cycle"
 {{{
$ cd Practical_2
$ mkdir Revers Irrev Cycle
}}}


== 2.1 Steady-States with Reversible Kinetics ==
 1.
 Download the [[http://mudsharkstatic.brookes.ac.uk/Delhi2013/Models/TwoReacRever.spy|TwoReacRever.spy]] model (right click for saving) and put it in the "Revers" directory.

 1.
 cd into the Revers directory, launch [[http://mudshark.brookes.ac.uk/ScrumPy|ScrumPy]] and load the model.

 1. Identify the kinetics, Parameter and initial value assignments.
 1. On the basis of the network structure, what predictions can you make about relationships of steady-state fluxes ?
 1. Investigate the effect of varying the Vmax value of the first reaction, e.g.
  .
        [[http://mudshark.brookes.ac.uk/Meetings/Delhi2013/Practicals/Practical_2#|Toggle line numbers]]
        {{{
}}}




 1. Repeat with some other parameters that could be tested in the lab.

== 2.2 Steady-States with Irreversible Kinetics ==
 1.
 Download the [[http://mudsharkstatic.brookes.ac.uk/Delhi2013/Models/TwoReacIrrev.spy|TwoReacIrrev.spy]] model and put it in the "Irrevs" directory.

 1. Repeat the investigation in 2.1 on this model.
 1. What are the smilarities and differences in behaviour ?
 1. What conclusions can you draw ?

== 2.3 Steady-States of a Moiety Conserved Cycle ==
 1.
 Download the [[http://mudsharkstatic.brookes.ac.uk/Delhi2013/Models/SimpleCycle.spy|SimpleCycle.spy]] model and put it in the "Cycle" directory.

 1. Proceed as 2.1 (but this time you need to vary the concentration of the external metabolite, x_A).
 1. Now investigate the effect of varying the conserved total (hint: use the parameter 'CSUM_NADH').
 1. Now break the conservation relationship and repeat the first part of 2.3
 1. What conclusions can you draw ?

None: Accliphot/WorkshopTwo/Practical_1 (last edited 2014-09-09 06:19:55 by mark)