Ciro Santilli @cirosantilli 37

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Driver and Vehicle Standards Agency Created 2024-12-04 Updated 2025-07-16

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The UK organ responsible for granting driving licenses.

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Virtual Worm Project Created 2024-12-04 Updated 2025-07-16

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caltech.wormbase.org/virtualworm/

This one has a 3D model of C. elegans containing all the cells, browsable on the browser at: browser.openworm.org/.

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SlidableWorm Created 2024-12-04 Updated 2025-07-16

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www.wormatlas.org/SW/SW.php/index_html5.html

Fantastic resouce that contains cross sections of C. elegans at various lengths of its body. Presumably frozen and cut with a Microtome and then scanned with electron microscopy.

Shame that there are so many parts missing.

It's the Visible Human Project, but for C. elegans!

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WormWiring Created 2024-12-04 Updated 2025-07-16

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wormwiring.org/

This contains the C. elegans connectome.

The browseable thing is this massive interactive PDF: wormwiring.org/papers/Interactive-Diagram.pdf. It lists neurons from the C. elegans cell lineage using the standard cell names, and how they connect to each other. Some make a surprising ammount of connections.

https://web.archive.org/web/20230921024845im_/https://wormwiring.org/art1/connectome_small.PNG

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WormBase Created 2024-12-04 Updated 2025-07-16

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wormbase.org//#012-34-5

TODO what does it contain. Does it have metabolic pathways?

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E. Coli Whole Cell Model by Covert Lab / Mass fraction summary plot analysis Created 2024-12-04 Updated 2025-07-16

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Let's look into a sample plot, out/manual/plotOut/svg_plots/massFractionSummary.svg, and try to understand as much as we can about what it means and how it was generated.

This plot contains how much of each type of mass is present in all cells. Since we simulated just one cell, it will be the same as the results for that cell.

We can see that all of them grow more or less linearly, perhaps as the start of an exponential. We can see that all of them grow more or less linearly, perhaps as the start of an exponential. We can see that all of them grow more or less linearly, perhaps as the start of an exponential.

total dry mass (mass excluding water)
protein mass
rRNA mass
mRNA mass
DNA mass. The last label is not very visible on the plots, but we can deduce it from the source code.

By grepping the title "Cell mass fractions" in the source code, we see the files:

models/ecoli/analysis/cohort/massFractionSummary.py
models/ecoli/analysis/multigen/massFractionSummary.py
models/ecoli/analysis/variant/massFractionSummary.py

which must correspond to the different massFractionSummary plots throughout different levels of the hierarchy.

By reading models/ecoli/analysis/variant/massFractionSummary.py a little bit, we see that:

the plotting is done with Matplotlib, hurray
it is reading its data from files under ./out/manual/wildtype_000000/000000/generation_000000/000000/simOut/Mass/, more precisely ./out/manual/wildtype_000000/000000/generation_000000/000000/simOut/Mass/columns/<column-name>/data. They are binary files however.
Looking at the source for wholecell/io/tablereader.py shows that those are just a standard NumPy serialization mechanism. Maybe they should have used the Hierarchical Data Format instead.
We can also take this opportunity to try and find where the data is coming from. Mass from the ./out/manual/wildtype_000000/000000/generation_000000/000000/simOut/Mass/ looks like an ID, so we grep that and we reach models/ecoli/listeners/mass.py.
From this we understand that all data that is to be saved from a simulation must be coming from listeners: likely nothing, or not much, is dumped by default, because otherwise it would take up too much disk space. You have to explicitly say what it is that you want to save via a listener that acts on each time step.