Choline kinase catalyzes the committed step in the synthesis of phosphatidylcholine by the CDP-choline pathway. This alignment covers the protein kinase portion of the protein. The divergence of this family makes it very difficult to create a model that specifically predicts choline/ethanolamine kinases only. However if [add Pfam ID here for Choline_kinase_C] is also present then it is definitely a member of this family.