Page History

...

• Overview: This page highlights several key characteristics of the experiment. The information on the "Overview" page either comes from manual data entry when the experiment was created or comes from the loading of a MAGE-TAB IDF file. A few elements are worth mentioning:
  • Experimental Description: a detailed description of the experiment. You can put as much details as you want but please be aware that it is just one single paragraph.
  • Status: either "In Progress" (default) or "Locked" (the experiment cannot be edited)
  • Array Design: this represents the file(s) describing probes on the corresponding microarray platform
• Contact: This page lists users who are the Principal Investigator(s) or the contact person(s) for this experiment. The information on this page either comes from manual data entry when the experiment was created or comes from the loading of a MAGE-TAB IDF file.
• Annotation: This collection of pages gives detailed information on the experiment and biomaterials on which the experiment is conducted. It has seven sub menu items (tabs) that can be categorized into three groups:
  • Experimental Design and Experimental Factors: They describe the experiment mainly using a controlled vocabulary, the MGED Ontology (MO). Non-MO terms can be added as well. The information on these two pages either comes from manual data entry when the experiment was created or comes from the loading of a MAGE-TAB IDF file.
  • Sources, Samples, Extracts, and Labeled Extracts: They are biological source materials (biomaterials) specified in the MAGE-TAB format (http://www.biomedcentral.com/1471-2105/7/489). The following image (from https://wiki.nci.nih.gov/display/caArray2doc/5+-+Creating+and+Managing+Experimentsthe user's guide), describes the relationships among them:

Image Modified
In most cases the biomaterial information comes from the loading of a MAGE-TAB SDRF file. In the SDRF file a user gives proper labels for biomaterials and can also add additional columns describing the characteristics of each biomaterial according to the MAGE-TAB specification. On this set of pages, a user can track the linkage from source materials to labeled extract, then to the final hybridization on microarray chip.

...

Please leave your comment in the caArray End User Forum.