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Analyzing Phenotypic Variations and Polymorphism Phillip Tao Advisor: Professor Eleazar Eskin Grad Student: Emrah Kostem
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Polymorphism and SNP Polymorphism is a variation between the genome of two individuals or chromosomes Many types: – Deletion * – Duplication * – Inversion * – Single Nucleotide Polymorphism (SNP) * These often cause major diseases, such as Cri du Chat and Charcot-Marie- Tooth disease, when large portions of the genome are affected [4]. However, their effect on small portions of the genome, (especially non- coding portions) have been mostly unstudied
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Problem Polymorphisms can be used to identify disposition toward certain illnesses [1] Use mouse genome to identify problem causing alleles A lot of data to analyze, 8.27 million SNP in mice [2], estimated 10 million in humans [1] Very difficult to identify non-SNP polymorphisms – Can be very long, 1.5 million base pairs [3]
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Past Methods and My Idea Polymorphism has been used to try to find causes for diseases such as cancer, etc. [5][6][7]. They decided on a disease first, found an area of a genome they believe might influence the disease, then looked for polymorphisms in that area My way is to map the entire set of polymorphisms for a given genome (mouse genome), then look for correlations
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Proposal, step 1 Develop a way to identify non-SNP polymorphisms 1.Find start of problem area 2.Use marker sequence to find end of problem area* 3.Identify problem * Idea borrowed from Restriction Fragment Length Polymorphism (RFLP)
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Proposal, step 2 Use Ruby to develop a tool to easily and flexibly model the data Develop algorithms to find correlation between polymorphisms and trait variations
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Schedule A basic but functional version of the Ruby on Rails website should be finished, and a working but slow and inefficient version of the polymorphism finder should be done. By the end of Winter Quarter, the final version of the polymorphism finder should be finished, and a better version of the RoR website should also be finished By the end of the project, an algorithm should be found to analyze correlation between certain polymorphisms and trait variations
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Resources 1.http://www.usatoday.com/news/health/2005-02-17-gene-map_x.htmhttp://www.usatoday.com/news/health/2005-02-17-gene-map_x.htm 2.http://www.nature.com/nature/journal/v448/n7157/full/nature06067.h tmlhttp://www.nature.com/nature/journal/v448/n7157/full/nature06067.h tml 3.http://www.nature.com/ng/journal/v29/n3/full/ng753.htmlhttp://www.nature.com/ng/journal/v29/n3/full/ng753.html 4.http://en.wikipedia.org/wiki/Chromosome_abnormalitieshttp://en.wikipedia.org/wiki/Chromosome_abnormalities 5.http://circ.ahajournals.org/cgi/content/abstract/circulationaha;102/2/19 7http://circ.ahajournals.org/cgi/content/abstract/circulationaha;102/2/19 7 6.http://jmd.amjpathol.org/cgi/content/full/8/4/499http://jmd.amjpathol.org/cgi/content/full/8/4/499 7.http://atvb.ahajournals.org/cgi/content/full/atvbaha;16/2/304http://atvb.ahajournals.org/cgi/content/full/atvbaha;16/2/304
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