**Author details**

Leonid Zaslavsky, Stacy Ciufo, Boris Fedorov, Boris Kiryutin, Igor Tolstoy and Tatiana Tatusova\*

\*Address all correspondence to: tatiana@ncbi.nlm.nih.gov

National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
