Glasgow/Drylab
From 2007.igem.org
Contents |
Week 1
02/07
After a brief re-introduction to the Laboratory and our project proposal, we outlined a 6-PHASE approach to guide our practice over the summer.
From here the Modellers began working on basic Matlab modelling tutorials, designed by Xu Gu, to allow all modellers to reach a satisfactory ability. By the end of the day we had completed a number of Mass-action programs using the ode45 funtion and grasped the translation from basic notaion into Substrate, Enzyme and S/E-complex notation.
03/07
We developed our modelling techniques by programming responses to basic metabolic and signalling pathways. We then learnt more precise techniques of modelling, e.g. accuracy and tolerace variance and noting parameters. We then covered Loop and Switch functions.
04/07
We are were introduced to the Nested function to allow for simpler programming, and the basic ideas behind Sensitivity of output due to a range of possible values of varying constants.
In the afternoon, all modellers were shown some Wetlab techniques for the sake of a more thorough understanding of the processes involved.
Our experiment was to extract plasmids from a number of different bacterial cultures.
05/07
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06/07
Raya Khanin introduced us to the Michaelis-Menten equation and its use in biochemical process modelling. We then discussed the methods of modelling different promoters's 'Acceptablility', i.e. 'And', 'Or' and 'Sum'.
Week 2
09/07
Our first step towards modelling a possible method for PHASE 1.
10/07
We planned and gave a lecture to those in Wetlab explaining the methods we employ as modellers to represent various biochemical reactions. We also received a complementary lecture from those in Wetlab explaining the processes they employ to carry out and observe experimentation. Toby 11:27, 11 July 2007 (EDT)
11/07
We have finally agreed on model we are going to simulate, but wet lab updated us, that first experiment went wrong and we have to remodel. First few minutes after such news were shocking. It took me an hour to finalize all the details. And now I have to go again.
Lucky for us modelers, computers dot care much about bacteria used in experiment so as long as we follow the same path we only need to rename variables. Bless!
12/07
A day dedicated to manual math as Rachel and Kristin does some analytical derivations for our models optimization. To be honest, we were very optimistic about the outcome, and though the formula derived were fine, and simulations went on as smoothly as ever, the optimization part shoved that 9 dimensional space is though nut to crack even for MatLAB.
--Karolis 04:53, 13 July 2007 (EDT)
13/07
Some introduction to Stochastic Modelling intrinsicaly contained in gene transcription. We took some decisions about the design of the wiki. More optimization done it by Maciej.
Week 3
16/07
Glasgow Bank Holiday.
17/07
We were given a brief introduction to Bionessie and SBML. Also we be begun to get to grips with Global Sensitivity analysis.
18/07
A brief overview of SimBiology was given to the drylab by Gary. Martina and Rachel continued with learning about Stochastic modelling while the rest of the team were working on Sensitivity Analysis.
19/07
A presentation was given to both the wetlab and the drylab about the Full Text Fetcher programme which will help to search and retrive research articles.
20/07
Today we realized that we missed few important details in our model 1. All morning was like one big mess. Everybody was giving their ideas how things should be sorted. Eventually we settled our brainstormed ideas on board and decided to leave simulations for Monday because new parameter hunt for model 1.2 was about to begin…
Week 4
23/07
Day spent on long discussions with Raya about the accuracy of our model 1.2 . We finally simulated it and… Results were a bit, shall I say unpleasant. Because of signal degradation we will not reach a stable state as we anticipated before. That is going to mess up our optimization algorithms for sure.
24/07
Kristin was asked by Xu to introduce Petri Net(Snoopy) method to qualitatively analyse the dynamics of the system. And Karolis introduced a dynamical approach in modeling of the system using Simulink. Both methods rely not only on blunt programming, but introduce GUI (Graphical User Interface) logics.
25/07
Maciek started a thorough research or registry files, because we were told by dry lab, that they are about to deposit their first brick and it is not very intuitive (a good point for registry’s future development). He promised to study it and give us all tutorial about his findings.
26/07
Bricks. Brick Bricks. What is this brick? What is the aim of having bricks? All these questions were brought forward and we all agreed to do a thorough individual research and combine them in joint brainstorm, because as our grandfathers used to say: ‘There are as many opinions as there are heads’.
27/07
First bricks from Glasgow team reached a sandpit. No no. Do not rush to copy them that’s just a ‘getting used to the system’, we are about to deposit real one, so we wat everything to go as smooth as possible.
Week 5
30/07
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31/07
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01/08
When the day was about to be over, we received long awaited news… First experimental data have finally reached us. We will be able to do some curve fitting, parameter estimation and other cool stuff.
02/08
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03/08
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