Detection and Response To Stimulus

Terms and Structure

The response of a cell or an organism to a stimulus is all the processes that occur as a result of the stimulus occurring within or outside the cell or organism. Detection of the stimulus, the process in which a stimulus is received by a cell and converted into a molecular signal, is thus a class of stimulus response. The general structure of this node is as follows:

  • response to stimulus
    • [i] detection of stimulus
      • [i] detection of [stimulus type] stimulus



Biological regulation is defined as any process that modulates the frequency, rate or extent of any biological process, quality or function.

The regulates relation

Protein Complexes

Definition of a Protein Complex

A cellular component should include more than one gene product; complexes of one gene product with a cofactor, e.g. heme and chlorophyll, should not be included. Homomultimeric proteins, e.g. the homodimeric alcohol dehydrogenase, may be included as cellular component terms, as should heteromultimeric proteins, e.g. hemoglobin with alpha and beta chains.

The Cell

What is in a cell?


This is a scratch page for people to try things out on. Please don't erase this message. foo@bar.com

Other Useful Links

  • SourceForge links: Useful links for the SourceForge site, including both general and GO-specific pages.
  • CVS Help: Help page for those who wish to access the anonymous GO CVS repository
  • GO Editor Guides: A set of guides for curators editing the ontologies.

File Format Guide

GO Formats

The GO File Format Guide documents the structure and syntax of the files available on the GO website, to assist users who need to read, write parsers for, or create these files. The following file formats are documented separately: