ETA is phosphorylated to PETA by CHK/ETNK Authored: Williams, MG, 2011-09-14 EC Number: 2.7.1.82 Edited: Williams, MG, 2011-08-12 In the cytosol, ethanolamine (ETA) is phosphorylated to phosphoethanolamine (PETA) by choline kinase (CHK) dimer or by ethanolamine kinase 1/2 (ETNK1/2) (Lykidis et al. 2001, Gallego-Ortega et al. 2009). CHK dimer consists of either choline kinase alpha subunit (CHKA) or beta subunit (CHKB) homodimer, or of CHKA:CHKB heterodimer. Pubmed11044454 Pubmed19915674 Reactome Database ID Release 431483222 Reactome, http://www.reactome.org ReactomeREACT_121273