%0 Journal Article %A Natale, Darren %A Arighi, Cecilia N. %A Barker, Winona C. %A Blake, Judith A. %A Bult, Carol J. %A Caudy, Michael %A Drabkin, Harold J. %A D’Eustachio, Peter %A Evsikov, Alexei V. %A Huang, Hongzhan %A Nchoutmboube, Jules %A Roberts, Natalia V. %A Smith, Barry %A Zhang, Jian %A Wu, Cathy H. %D 2011 %J Nucleic Acids Research %N 1 %P D539-D545 %T The Protein Ontology: A structured representation of protein forms and complexes %V 39