The GO project (II)
•The controlled vocabularies are structured so that they can be queried at different levels.
•For example, you can use GO to find all the gene products in the mouse genome that are involved in signal transduction, or you can zoom in on all the receptor tyrosine kinases.
•This structure also allows annotators to assign properties to genes or gene products at different levels, depending on the depth of knowledge about that entity.
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