negatively regulates phosphatidylcholine biosynthetic process biological regulation negative regulation of phospholipid biosynthetic process regulation of phosphatidylcholine biosynthetic process negative regulation of phosphatidylcholine biosynthetic process tb negative regulation of phosphatidylcholine biosynthesis Any process that stops, prevents or reduces the frequency, rate or extent of phosphatidylcholine biosynthetic process. negative regulation of phosphatidylcholine synthesis negative regulation of phosphatidylcholine anabolism biological_process negative regulation of phosphatidylcholine formation GO:2001246 2011-11-28T09:47:47Z