| regulation of homocysteine metabolic process |
| betaine-homocysteine S-methyltransferase activity |
| regulation of sulfur amino acid metabolic process |
| amino-acid betaine catabolic process |
| choline catabolic process |
| L-methionine biosynthetic process |
| L-methionine salvage |
| amino acid salvage |
| choline metabolic process |
| methionine biosynthetic process |
| regulation of sulfur metabolic process |
| methionine metabolic process |
| amino-acid betaine metabolic process |
| S-adenosylmethionine metabolic process |
| sulfur amino acid biosynthetic process |
| cellular biogenic amine catabolic process |
| amine catabolic process |
| neurotransmitter catabolic process |
| aspartate family amino acid biosynthetic process |
| cellular modified amino acid catabolic process |
| cellular metabolic compound salvage |
| sulfur amino acid metabolic process |
| aspartate family amino acid metabolic process |
| cellular biogenic amine metabolic process |
| cellular amine metabolic process |
| regulation of cellular amino acid metabolic process |
| alpha-amino acid biosynthetic process |
| amine metabolic process |
| regulation of cellular amine metabolic process |
| cellular amino acid biosynthetic process |
| neurotransmitter metabolic process |
| protein alkylation |
| protein methylation |
| regulation of cellular ketone metabolic process |
| sulfur compound biosynthetic process |
| ammonium ion metabolic process |
| cellular modified amino acid metabolic process |
| alpha-amino acid metabolic process |
| coenzyme metabolic process |
| macromolecule methylation |
| carboxylic acid biosynthetic process |
| organic acid biosynthetic process |
| cellular amino acid metabolic process |
| methylation |
| regulation of neurotransmitter levels |
| sulfur compound metabolic process |
| regulation of small molecule metabolic process |
| cellular nitrogen compound catabolic process |
| cofactor metabolic process |
| drug metabolic process |
| small molecule biosynthetic process |
| zinc ion binding |
| carboxylic acid metabolic process |
| oxoacid metabolic process |
| organic acid metabolic process |
| organonitrogen compound catabolic process |
| organonitrogen compound biosynthetic process |
| small molecule metabolic process |
| organic substance catabolic process |
| cellular catabolic process |