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. 2009 Oct 13;5:311. doi: 10.1038/msb.2009.71

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Copyright © 2009, EMBO and Nature Publishing Group

This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits distribution and reproduction in any medium, provided the original author and source are credited. Creation of derivative works is permitted but the resulting work may be distributed only under the same or similar licence to this one. This licence does not permit commercial exploitation without specific permission.

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Viral proteins from UniProtKB. (A) Total number of UniProtKB viral proteins [Virus], following filtration by removal of proteins with the database term ‘polyprotein' [Virus-(PP)], proteins that are marked as fragments [Virus-(PP+Fr)], and after removal of redundancy at the level of 90% sequence identity [(Virus-(PP+Fr))^*0.9]. The fraction of viral proteins of the human immunodeficiency virus (HIV) is in yellow, and the number of proteins is as indicated (in thousands). (B) Partition of all proteins of 121 human-infecting viruses (from 50 virus genera) by viral classification into the 7 Baltimore classes and by the number of proteins in each class. Note the significant change in the fraction of proteins in each class when the manually reviewed data resource (SwissProt) or all data (UniProtKB) are considered. Source data and additional clinical information can be found in Supplementary Table S1.