Mappings between Enzyme Commission numbers and probe identifiers


YEASTENZYME2PROBE maps Enzyme Commission numbers to probe identifiers representing genes whose products exhibit the functions of the enzymes labeled by the Commission Numbers


Enzyme Commission numbers are assigned by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology to allow enzymes to be identified.

An Enzyme Commission number is of the format EC x.y.z.w, where x, y, z, and w are numeric numbers. In YEASTENZYME2PROBE, EC is dropped from the Enzyme Commission numbers.

Enzyme Commission numbers have corresponding names that describe the functions of enzymes in such a way that EC x is a more general description than EC x.y that in turn is a more general description than EC x.y.z. The top level EC numbers and names are listed below:

EC 1 oxidoreductases

EC 2 transferases

EC 3 hydrolases

EC 4 lyases

EC 5 isomerases

EC 6 ligases

The EC name for a given EC number can be viewed at

Mappings were based on data provided by:

KEGG: Built: Yeast Genome data are built at various time intervals. Sources used were downloaded Tue Oct 26 12:36:45 2004

Package built Tue Oct 26 14:35:47 2004



    # Convert to a list
    xx <- as.list(YEASTENZYME2PROBE)
   if(length(xx) > 0){
       # Gets the probe ids for the first five enzyme
       #commission numbers
       # Get the first one

[Package YEAST version 1.6.5 Index]