HI guys, I may miss or ignore some relevant emails before, sorry about that. I am just keen to know whether there is any biojava API equivalent to bioperl-db? Thanks Cheers. Juguang ------------ATGCCGAGCTTNNNNCT-------------- Juguang Xiao Temasek Life Sciences Laboratory, National University of Singapore 1 Research Link, Singapore 117604 juguang at tll.org.sg