Hi, I am a grad student in University of newmexico and i am working with R program but i am unable to read the R data package "Enzyme2affy" inthe bionconductor . Basically i need the EC numbers of all the affymetrix chip RatU34a. Plz let me know what i need to do and do i need to use the annotate or annbuilder package to read the "Enzyme2affy" R data package. Sincerely, Arun