Ian Holmes

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Research interests

For links to current/past members of my group and their interests, please see our lab page.

Short summary:

Genome evolution

Computational biology needs realistic, predictive, quantitative models of the how biological sequences --- and systems --- evolve.

My lab develops & applies stochastic process models (e.g. discrete-state continuous-time Markov chains) for the study of molecular evolution.

The dynamics we have modeled include substitutions, insertions and deletions ("indels"), microsatellite dynamics, local duplications, inversions, transpositions, recombinations and rearrangements.

Systems we might consider include sequences, gene families, cis-regulatory networks and chemical signaling pathways.

Ancestral sequence reconstruction

One interest is in paleogenomics: using molecular evolutionary models to make inferences about the origins of life by working backwards from present-era DNA sequences, with the goal of reconstructing those origins in the laboratory synthetically.

Other applications of the models include genefinding, SNP analysis, simulations, and design of combinatorial libraries.

Genome ecology

A related interest is "genome ecology": the (evolutionary) interactions of genomes with their neighbors.

Examples include the bioinformatics of transposon classification, virus phylogenetics & recombination, or the metagenomics of microbial communities.

Computational tools

Understanding and re-engineering genomes (and metagenomes) will require a robust set of computational tools.

We work on infrastructural components and technologies for genome annotation, such as the Gene Ontology or our genome wiki tools.

Computational tools for synthetic biology are also an ongoing interest.

For more info see the front page, the Holmes lab page or the paper archive.

Computer games

I have an academic interest in several computer-game related areas including interactive fiction, cellular automata, and artificial life (A-life).

In the past I have written several games:

  • Zoo Gas (2009) is a cheap and cheerful cellular automaton experiment. Not so much a game, as a very early-stage prototype for a game, experimenting with taking the components of simulations in molecular ecology and polymer physics, and trying to turn them into objects in a virtual world.
  • Pipeline (1989), co-written with William Reeve, was published by Superior Software for the BBC Micro. It rates a mention on the Wikipedia page for Jupiter's moons in fiction. 8-) Here it is on YouTube. Essentially it was a fast four-way scrolling arcade/puzzle/RPG with a level designer. There's a review here, with a download you can run on an emulator. A PC version, Pipeline Plus, is available from Superior Interactive. In development it was called GuildMaster and I imagined it as a sort of medieval/fantasy guild progression thing, with alternate professions you could follow. My contributions to the code included the non-graphics components: puzzle logic, level designer, etc.

Here are some (mostly retro) games that I've enjoyed over the years:

Biographical info

I grew up in Cambridge (UK) and studied physics at the Cavendish Laboratory (TCM group) and genomics at the Sanger Institute (Informatics).

I now work at UC Berkeley and live in the Lorin District.

Publications

A list of my published papers is here

Affiliations

I am on the faculty of the Departments of Bioengineering and Electrical Engineering & Computer Science at UC Berkeley and the Physical Biosciences Division at Lawrence Berkeley Laboratory.

Online locations

Contact details

  • Skype: ianholmes
  • Lab address: 381 Stanley Hall, UC Berkeley, CA 94720-3220
    • Lab phone: (510) 666 - 2791