Protein X of Hepatitis B Virus: Origin and Structure Similarity with the Central Domain of DNA Glycosylase van Hemert, Formijn J. ; van de Klundert, Maarten A. A. ; Lukashov, Vladimir V. ; Kootstra, Neeltje A. ; Berkhout, Ben ; Zaaijer, Hans L. Abstract Publication: PLoS ONE Pub Date: August 2011 DOI: 10.1371/journal.pone.0023392 Bibcode: 2011PLoSO...623392V