Changes between Initial Version and Version 1 of Internships


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Timestamp:
2011-02-01T10:33:32+01:00 (13 years ago)
Author:
jvelde
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  • Internships

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     1[[TOC()]]
     2
     3= Available internship projects at the GCC =
     4
     5This list is just a grasp of nearly limitless possibilities. If you have another fruitful proposal yourself, feel free to come over and discuss.
     6
     7=== Comparative analysis of genetic screens for protein aggregation in  yeast, worms and flies ===
     8
     9Groningen Bioinformatics Centre: www.rug.nl/gbic
     10
     11Supervisor: Alex Kanterakis, Joeri van der Velde, Morris Swertz, Rainer Breitling
     12
     13Duration: 6 or 9 months
     14
     15Toxic protein aggregation is characteristic for many diseases including Alzheimer’s, Parkinson’s and polyglutamine diseases. Several genetic screens have been performed in small model organisms (yeast, worms (C. elegans) and fruitflies (Drosophila) for modifier genes that alter toxicity or aggregation of disease related proteins (alpha-synuclein and polyglutamine). In this project you will perform the first large-scale comparative analysis of the results of these screens in a standardized way, using bioinformatics and statistics tools. The aim is to detect common pathways and mechanisms, as well as specific differences between the various protein aggregation diseases. Results will also be integrated with data from genetic screen results (GWAS) in human populations of, e.g., Parkison’s disease patients. The project will include the unified annotation of screening results using KEGG, UniGene and Ensembl; Gene Ontology (GO) enrichment analysis using DAVID, GeneTrail and GOstat (R package), as well as pathway analysis and data integration using custom-developed bioinformatics tools.
     16
     17References:
     18
     19van Ham TJ, Breitling R, Swertz M, Nollen EAA (2009): Neurodegenerative diseases: Lessons from genome-wide screens in small model organisms. EMBO Molecular Medicine in press.
     20
     21van Ham TJ, Thijssen KL, Breitling R, Hofstra RMW, Plasterk RHA, Nollen EAA (2008): C. elegans model identifies genetic modifiers of α-synuclein inclusion formation during aging. PLoS Genetics 4:e10000027.
     22
     23
     24=== 3D Visualization of genetical genomic analysis ===
     25
     26Supervisor: Danny Arends, Joeri v/d Velde, M. Swertz
     27
     28Outline:
     29
     30O3D is a new initiative to bring 3D accelerated graphics to the web browser. During the last Google summer
     31of code advances were made by the open source community an a stable API is now available for initial development.
     32We predict that open3D is a good way of visualizing biological data. Especially when we are looking at/trough multiple levels
     33(Organism, Cell, Protein, Transcription). In QTL analysis researchers search for association between traits and molecular
     34markers, however after identifying these QTLs there is still no easy way to extract knowledge. We think that 3D visualization
     35together with the use of real time user interaction would greatly enhance the toolbox of the current day life science researcher.
     36This project is aimed a developing a pilot plug-in for the molgenis database system, that allows the user to navigate through a
     373D space in which genetic data is visualized.
     38
     39Duration: ~ 6-9 Months
     40
     41Student Sketch:
     42
     43- Interested in 3D programming (and some experience)
     44
     45- Semi-familiar with JavaScript, Pythagoras
     46
     47References / Start:
     48
     49- O3D - http://code.google.com/intl/nl/apis/o3d/
     50
     51- genetical genomics - http://www.google.nl/search?q=genetical+genomics
     52
     53- JavaScript event handling
     54
     55=== Estimating optimal genetic marker placement ===
     56
     57Supervisor: Danny Arends, R.C Jansen
     58
     59Outline:
     60
     61Quantitative Trait Likelihood (QTL) analysis tries to determine genetic locations governing quantitative traits like blood pressure. MQM (Multiple QTL Mapping) is an algorithm which enables researchers to estimate in an automated way the importance of genetic markers. This is useful when large datasets need unsupervised clustering or classification of data. However usually too many markers are available in based on prior observations. The MQMalgorithm has already been successfully applied in several fields of biology, like plant breeding, drug discovery and . MQM has multiple advantages over other QTL mapping approaches. One of the main advantages are: Ability to 'compensate' for the effect of other markers, quick because the computational heavy work is programmed in C, and is available for R programming environment (+ other mappings). The R/qtl package brings together several QTL mapping strategies and also includes MQM. To increase detection of QTLs by using MQM cofactors are used. However the placement of these cofactors along the genome is still an issue of debate. To investigate cofactor placement several approaches can be adopted. The goal is to investigate multiple placement strategies, and their effect on detection of QTLs
     62
     63Duration: ~ 6 Months
     64
     65Student Sketch:
     66
     67- Interested in 2D maps, statistics
     68
     69- Semi-familiar with R (or C++), linear regression
     70
     71References / Start:
     72
     73- R/qtl - http://www.rqtl.org/
     74
     75- MQM - http://www.google.nl/search?q=MQM+Jansen
     76
     77- QTL mapping
     78
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     80