Dual-specificity kinase
（重定向自Dual specificity kinase）
In biochemistry, a dual-specificity kinase (EC2.7.12.1) is a kinase that can act as both tyrosine kinase and serine/threonine kinase.
MEKs, involved in MAP pathways, are principal examples of dual-specificity kinases. Other common examples include:
The systematic name of this enzyme class is ATP:protein phosphotransferase (Ser/Thr- and Tyr-phosphorylating).