Algorithms in Sequence Analysis

Doel vak

Have you ever wondered how we can track a gene across 3 billion years of
evolution? Or how you can use the genome information of a given cancer
patient to find out what may be wrong? Sequence alignment can be used to
compare genomes, genes or proteins from bacteria all the way to humans,
while further derived algorithms may be employed to make a phylogeny (to
find out about evolutionary relationships), find a functional motif in a
protein sequence, or a viral sequence in a genome. In this course we
focus on the most important algorithms for biological sequence analysis
that can be applied to real scientific problems in biology.

Course Objectives [Dublin descriptors]:

- Students will obtain in-depth knowledge about the theory of sequence
analysis methods. They will become aware of the major issues,
methodology and available algorithms in sequence analysis. Upon
completion of the course they will be able to implement several of the
most important algorithms in sequence analysis, including dynamic
programming and Hidden Markov Models (HMMs) [Knowledge and
understanding].

- Students will develop understanding and skills to apply sequence
analysis algorithms to protein and DNA sequences. They will gain
hands-on experience in tackling biological problems using sequence
analysis algorithms, including the statistical framework of HMMs and
algorithms used in genome sequencing and analysis [Applying knowledge
and understanding].

- Upon completion of the course students will be able to decide which
algorithm is best suited for a particular biological sequence analysis
problem [Making judgements].

- During this course students are required to read through scientific
and technical literature and learn to translate algorithms described in
text and formal mathematical notation into computer code [Learning
skills].

Inhoud vak

Theory:
- Dynamic programming, database searching, pairwise and multiple
alignment, probabilistic methods including HMMs, pattern matching,
entropy measures, evolutionary models, and phylogeny.

Practical:
- Programming (in Python) an alignment algorithm based on dynamic
programming;
- Aligning sequencing data from tumors to the human genome and analysing
structural variants;
- Programming (in Python) an implementation of HMMs and
using it to predict protein domain structure.

Aanvullende informatie onderwijsvormen

13 lectures: 2 two-hour lectures per week.
13 computer practicals and associated assignments: 2 two-hour hands-on
sessions per week.

Toetsvorm

The final grade for this course will consist of 50% practical work (see
above) and 50% theoretical assessment.
The theoretical assessment will be an oral and/or written exam
(depending on number of students).

Further assessment and grading details will be posted on Canvas (resits
and compensation rules).

Vereiste voorkennis

Bachelor in any science discipline (including medicine).
Basic programming skills (Python) and an interest in biological
problems.

Literatuur

Course material on Canvas.

Books: Durbin, R., Eddy, S.R., Krogh, A., Mitchison, G.. Biological
Sequence Analysis. Cambridge University Press, 1998, 350 pp., ISBN
0521629713.

Recommended reading: Marketa Zvelebil and Jeremy O. Baum Understanding
Bioinformatics. Garland Science 2008. ISBN-10: 0-8153-4024-9

Aanvullende informatie doelgroep

M Bioinformatics and Systems Biology
M Biomolecular Sciences
M Artificial Intelligence
M Computational Science

Overige informatie

BYOD policy (Bring Your Own Device)
We expect students in this course to use their own laptop. This laptop
should at the very least support an SSH client, for remote shell access
to the VU Linux servers. Ideally, this laptop supports a command line
shell, Python 3 and a text editor with syntax highlighting -- either
standalone (e.g. Atom or Sublime Text) or as part of a simple IDE (e.g.
Spyder). As such, we recommend the Anaconda python distribution
regardless of operating system, along with PuTTy or PowerShell for
Windows users specifically.

If you are considering purchasing new hardware, we recommend the
following:
o Processor: Intel i5 / AMD Ryzen 5 or above
o Memory: At least 4GB RAM
o Storage: At least 512GB harddisk space
o Operating System: Ubuntu 16.04

The course is taught in English.