primary metabolic process
   |__lipid metabolic process
       |__membrane lipid metabolic process  113 rec.
           |__glycolipid metabolic process 59 rec.
           |   |__galactolipid metabolic process(+)
           |   |__glycolipid biosynthetic process(+) 55 rec.
           |   |__glycolipid catabolic process(+) 3 rec.
           |   |__glycosphingolipid metabolic process(+) 15 rec.
           |   |__GPI anchor metabolic process(+) 37 rec.
           |   |__lipid A metabolic process(+)
           |__membrane lipid biosynthetic process 101 rec.
           |   |__glycolipid biosynthetic process(+) 55 rec.
           |   |__sphingolipid biosynthetic process(+) 57 rec.
           |__membrane lipid catabolic process 11 rec.
           |   |__glycolipid catabolic process(+) 3 rec.
           |   |__sphingolipid catabolic process(+) 11 rec.
           |__sphingolipid metabolic process 67 rec.
               |__ceramide metabolic process(+) 25 rec.
               |__glycosphingolipid metabolic process(+) 15 rec.
               |__inositol phosphoceramide metabolic process(+)
               |__sphinganine-1-phosphate metabolic process(+)
               |__sphingoid metabolic process(+) 7 rec.
               |__sphingolipid biosynthetic process(+) 57 rec.
               |__sphingolipid catabolic process(+) 11 rec.
               |__sphingomyelin metabolic process(+) 6 rec.