Each day Apimba highlights one enzyme from our curated database of biochemical catalysts. The selection is deterministic for the day, so everyone sees the same enzyme until midnight UTC.
EC Number: 2.7.1.120
Reaction: ATP + caldesmon = ADP + caldesmon phosphate
Systematic name: ATP:caldesmon O-phosphotransferase
Other names: caldesmon kinase (phosphorylating)
Comments: Requires Ca2+ and calmodulin. Phosphorylation abolishes the ability of the protein caldesmon to bind actin and inhibit ATPase. The enzyme appears to be identical with caldesmon; the reaction is an autophosphorylation.
CAS Number: 93229-57-3