List of EC numbers (EC 4)

This list contains a list of EC numbers for the fourth group, EC 4, lyases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology. All official information is tabulated at the website of the committee.[1] The database is developed and maintained by Andrew McDonald.[2]

EC 4.1: Carbon-Carbon Lyases[]

EC 4.1.1: Carboxy-lyases[]

(*) No Wikipedia article

EC 4.1.2: Aldehyde-lyases[]

(*) No Wikipedia article

EC 4.1.3: Oxo-Acid-Lyases[]

(*) No Wikipedia article

EC 4.1.99: Other Carbon-Carbon Lyases[]

(*) No Wikipedia article

EC 4.2: Carbon-Oxygen Lyases[]

EC 4.2.1: Hydro-lyases[]

EC 4.2.2: Acting on Polysaccharides[]

EC 4.2.3: Acting on phosphates[]

EC 4.2.99: Other Carbon-Oxygen Lyases[]

EC 4.3: Carbon-Nitrogen Lyases[]

EC 4.3.1: Ammonia-Lyases[]

EC 4.3.2: Amidine-Lyases[]

EC 4.3.3: Amine-Lyases[]

EC 4.3.99: Other Carbon-Nitrogen Lyases[]

EC 4.4: Carbon-Sulfur Lyases[]

EC 4.5: Carbon-Halide Lyases[]

EC 4.6: Phosphorus-Oxygen Lyases[]

EC 4.99: Other Lyases[]


  1. ^ "ExplorEnz – The Enzyme Database".
  2. ^ McDonald, A.G.; Boyce, S.; K.F., Tipton (2009). "ExplorEnz: the primary source of the IUBMB enzyme list". Nucleic Acids Res. 37: D593–D597. doi:10.1093/nar/gkn582.