

David GiffordEducation:Massachusetts Institute of TechnologyCambridge, MA Professional Experience:Massachusetts Institute of Technology Professor, Tenured 1995 - Present Appointments:1999 Program Chair, 5th International Meeting on DNA-Based Computers CDP Education Program7.90 / 6.874 Computational Functional Genomics With the support of the CDP Center, in Spring 2006 we offered a very successful interdisciplinary class on computational and systems biology that brought together 20 graduate students in Computer Science, Mathematics, Health Sciences and Technology, CSBi, and Biology. The class included both lectures and a laboratory component. In the laboratory component students were organized into interdisciplinary laboratory teams and given four different laboratories assignments that they cooperatively completed. In addition to proscribed laboratory projects, each student team chose their own interdisciplinary project, completed research on the project, and presented the results to the class. Short summaries of the projects follow: Malaria – Finding Elusive Mitochondrial Motifs The promoters for 114 mitochondrial genes were searched for a motif that could explain disparate expression in samples from clinically ill patients, gametocytes, and an overall life cycle series. A potentially explanatory motif was found and explored. Marray – A Microarray Search Tool A tree based search structure for expression data sets was explored that permits the rapid retrieval of expression data sets that are similar to a query dataset. Extensions to permit queries on subsets of GO terms were presented. Pleiotropy Analysis in Yeast with Phenotypic and Interactome Data. Clusters of pleiotropic genes with the same phenotypes are interconnected in an interactome network using novel methods. Five clusters of forty have shorter distances between members of their members and higher mutual clustering coefficients, and include functions such as pH homeostasis and membrane biosynthesis. Motif Discovery, Algorithm and Application Motif discovery was performed on Nanog, and genes containing the discovered Nanog motif were used in a gene set analysis to see if there are other gene sets relevant to other biological phenotypes, such as cancer Transciptome Annotation Using Sequence Tags The position sensitivity of novel sequence tags were examined for their utility for transcriptome annotation. A novel gene database was constructed form selected fungi to look at the utility of sequence tags, and tags in the middle of ORFs were found to have the highest information density. |
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