Succinate-CoA Ligases 18 succinyl coenzyme A synthetase 16 5 aminolevulinate synthase 14 article 14 porphobilinogen synthase 14 porphyrin 14 5-Aminolevulinate Synthetase 12 Porphobilinogen Synthase 12 Porphyrins 12 Coenzyme A Ligases 10 Succinate CoA Ligases 10 Support, Non-U.S. Gov't 10 biosynthesis 10 metabolism 10 Plants 8 Soybeans 8 enzymology 8 Cells, Cultured 6 Kinetics 6 Trypanosoma cruzi 6 aminotransferase 6 heme 6 in vitro study 6 plant 6 succinyl coenzyme a synthetase 6 Ammonia Lyases 4 Ammonia-Lyases 4 Animal 4 Clone Cells 4 Cystathionine gamma-Lyase 4