A biological pathway is a series of actions among molecules in a cell that leads to a certain product or a change in a cell. Such a pathway can trigger the assembly of new molecules, such as a fat or protein. Pathways can also turn genes on and off, or spur a cell to move. Some of the most common biological pathways are involved in metabolism, the regulation of gene expression and the transmission of signals. Pathways play key role in advanced studies of Genomics.
Most common types of biological pathways:
- KEGG Pathway database is a popular pathway search database highly used by biologists.
- WikiPathways is a community curated pathway database using the "wiki" concept. All pathways have an open license and can be freely used.
- Reactome is a free and manually curated online database of biological pathways.
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