Vkuehn Week 8

Electronic Lab Notebook

'10.10.2013'

1. Data accessed from

uploaded txt file and excel file:

Merrell Compiled Raw Data VK.xls

Merrell Compiled Raw Data VK.txt

'10.1.2013' Expression dataset manager conveted data resulted in Media: Merrell_Compiled_Raw_Data_Vibrio_VK_2013.10.15.gex

GenMAPP Expression Dataset Procedure

• Generated lines that resulted in error. During the conversion the data for 2010 resulted in 121 errors
• Generated an exception file Media:Merrell_Compiled_Raw_Data_Vibrio_VK_2013.10.15.EX.txt
• Used autofilter to determine errors. The errors were all gene not found. This was because it was not updated recently so it is ok to proceed. Media:Merrell_Compiled_Raw_Data_Vibrio_VK_2013.10.15.EX.xls

  My partner had a lot more errors than I did. This is because I was using the newer version while he was using the older dataset. Mine had been updated more recently which is why there were less errors because more of the data matched

• Customize the new Expression Dataset by creating new Color Sets which contain the instructions to GenMAPP for displaying data on MAPPs.
• Input the "Avg_LogFC_all" for the Vibrio dataset created in the excel file

• Create criteria builder for "increased":

  [Avg_LogFC_all] > 0.25 AND [Pvalue] < 0.05

  Uploaded color sets

MAPPFinder Procedure

• Launch MAPPFinder and make sure that the database for the correct species is loaded
• Click "Calculate new results" choose the dataset just created (choose Merrell_Compiled_Raw_Data_Vibrio_VK_2013.10.15.gex)
• Choose color set and criteria, select gene ontology and p value (see image to the right)
• Click "run mappfiner" Media:MerrellVK.mapp
• Gene Ontology window will open. All of the Gene Ontology terms that have at least 3 genes measured and a p value of less than 0.05 will be highlighted yellow. A term with a p value less than 0.05 is considered a "significant" result. Browse through the tree to see your results. Click on "ranked list"

• Top 10 Gene Ontology terms (image to the left)
• My terms in comparison with my partners are different, this is because he had different gene dataset that was less updated and there were differences in expression because of this.
• Find the Gene Ontology term(s) with which a particular gene is associated. Search for matched gene from Merrell et al. (2002)VC0647

  List the GO terms associated with each of those genes in your individual journal

• Template:vkuehn
• Viktoria Kuehn
• Week 1 Assignment
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• Ensembl Database
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• Leishmania major
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• Leishmania major Genome Reference Article Presentation
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