The Taxa Lookup database contians information and classificaitons on biological taxa. Use the R-package taxalook to directly access the data. The data can also be downloaded here.
We performed a simple search for the names of higher level classes of EC number hierarchy on February, 2012 in repositories Google Scholar, PDB and PubMed (absolute value and percentage).
The GenBank sequence database continues to expand its data coverage, quality control, annotation content and retrieval services. GenBank is comprised of DNA sequences submitted directly by authors as