Protein Kinase Classification
About 2% of all eukaryotic genes are protein kinases, with over 500 kinases in mammalian genomes. To organize this diversity and compare genes between distant organisms, we developed a classification scheme for protein kinases. Kinases are divided into 9 main groups, and each group is then split into families, and often subfamilies. The scheme is based on an earlier one by Hunter and Hanks.
Groups