PMID- 22293603 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20121002 LR - 20211021 IS - 1756-0500 (Electronic) IS - 1756-0500 (Linking) VI - 5 DP - 2012 Jan 31 TI - NBC update: The addition of viral and fungal databases to the Naive Bayes classification tool. PG - 81 LID - 10.1186/1756-0500-5-81 [doi] AB - BACKGROUND: Classifying the fungal and viral content of a sample is an important component of analyzing microbial communities in environmental media. Therefore, a method to classify any fragment from these organisms' DNA should be implemented. RESULTS: We update the naive Bayes classification (NBC) tool to classify reads originating from viral and fungal organisms. NBC classifies a fungal dataset similarly to Basic Local Alignment Search Tool (BLAST) and the Ribosomal Database Project (RDP) classifier. We also show NBC's similarities and differences to RDP on a fungal large subunit (LSU) ribosomal DNA dataset. For viruses in the training database, strain classification accuracy is 98%, while for those reads originating from sequences not in the database, the order-level accuracy is 78%, where order indicates the taxonomic level in the tree of life. CONCLUSIONS: In addition to being competitive to other classifiers available, NBC has the potential to handle reads originating from any location in the genome. We recommend using the Bacteria/Archaea, Fungal, and Virus databases separately due to algorithmic biases towards long genomes. The tool is publicly available at: http://nbc.ece.drexel.edu. FAU - Rosen, Gail L AU - Rosen GL AD - Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA, USA. gailr@ece.drexel.edu. FAU - Lim, Tze Yee AU - Lim TY LA - eng PT - Journal Article DEP - 20120131 PL - England TA - BMC Res Notes JT - BMC research notes JID - 101462768 PMC - PMC3284397 EDAT- 2012/02/02 06:00 MHDA- 2012/02/02 06:01 PMCR- 2012/01/31 CRDT- 2012/02/02 06:00 PHST- 2011/10/20 00:00 [received] PHST- 2012/01/31 00:00 [accepted] PHST- 2012/02/02 06:00 [entrez] PHST- 2012/02/02 06:00 [pubmed] PHST- 2012/02/02 06:01 [medline] PHST- 2012/01/31 00:00 [pmc-release] AID - 1756-0500-5-81 [pii] AID - 10.1186/1756-0500-5-81 [doi] PST - epublish SO - BMC Res Notes. 2012 Jan 31;5:81. doi: 10.1186/1756-0500-5-81.