>sp|Q9Y5K3-4|PCY1B_HUMAN Isoform 4 of Choline-phosphate cytidylyltransferase B OS=Homo sapiens OX=9606 GN=PCYT1B MVGHQECIMEEDNRAPQLWRKTLTAPAPFADETNCQCQAPHEKLTIAQARLGTPADRPVR VYADGIFDLFHSGHARALMQAKTLFPNSYLLVGVCSDDLTHKFKGFTVMNEAERYEALRH CRYVDEVIRDAPWTLTPEFLEKHKIDFVAHDDIPYSSAGSDDVYKHIKEAGMFVPTQRTE GISTSDIITRIVRDYDVYARRNLQRGYTAKELNVSFINEKRYRFQNQVDKMKEKVKNVEE RSKEFVNRVEEKSHDLIQKWEEKSREFIGNFLELFGPDGAWKQMFQERSSRMLQALSPKQ SPVSSPTRSRSPSRSPSPTFSWLPLKTSPPSSPKAASASISSMSEGDEDEK