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Guidelines for Sample and Array Quality (Data Analysis Fundamentals from Affymetrix, pdf file)

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 Labeling, Hybridization, & Data Acquisition

  1. Initiation of work begins when the investigator fills out a Request For Service Form”.
     
  2. Once the “Request for Service Form” is completed and returned to the Molecular Genomics Core (MRB 6.158) with his/her samples, he/she will be logged in and given a MGC (Molecular Genomics Core) number.  The request is put in the queue and is completed in sequential number. 
     
  3. The investigator has the option of designing a custom array to be hybridized or to utilize an existing array in stock. This process is described under custom array fabrication.
  4. The Facility will clean up the total RNA provided by passing it through a Chroma 100 Column (CloneTech, Catalog # K1332-2). This process takes 1-2 days to complete. Although there are many methods to isolate RNA, the Molecular Genomics Core strongly recommends that you use the RNAqueous kit by Ambion, (Catalog#1911) or Totally RNA by Ambion.
  5. Generation of Cy-labeled cDNA suitable for use in a Microarray hybridization takes 2-3 days.
  6. Upon completion of the hybridization, washing and scanning of the array, an analysis is performed which generates GenePix Results (*.gpr) file.Click here for description of files. The resulting file can be opened in Microsoft Excel or directly imported into Spotfire for Functional Genomics via the GenePix import tool.
  7. The user will receive a copy of the *.gpr in text format for every array. Click here for instructions on accessing your text files.
  8. If a user wishes to have a copy of the scanned images in either JPEG or TIFF format, he/she will need to bring a blank CD with his/her request form.

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