Claim: The MAP2K2 which is an enzyme known as MAPK1 functions by a protein with dual specificity protein kinase, which plays a role in mitogen growth factor signal transduction.
Evidence: Dual specificity mitogen-activated protein kinase kinase 2 is an enzyme that in humans is encoded by the MAP2K2 gene. 
The protein encoded by this gene is a dual specificity protein kinase that belongs to the MAP kinase kinase family.