http://www.ncbi.nlm.nih.gov/pubmed/22796954

Bioinformatics. 2012 Jul 12. [Epub ahead of print]

Gene and Translation Initiation Site Prediction in Metagenomic Sequences.

Hyatt D, Locascio PF, Hauser LJ, Uberbacher EC.

Source

Computational Biology and Bioinformatics Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.

Abstract

MOTIVATION:

Gene prediction in metagenomic sequences remains a difficult problem. Current sequencing technologies do not achieve sufficient coverage to assemble the individual genomes in a typical sample; consequently, sequencing runs produce a large number of short sequences whose exact origin is unknown. Since these sequences are usually smaller than the average length of a gene, algorithms must make predictions based on very little data.

RESULTS:

We present MetaProdigal, a metagenomic version of the gene prediction program Prodigal, that can identify genes in short, anonymous coding sequences with a high degree of accuracy. The novel value of the method consists of enhanced translation initiation site identification, ability to identify sequences that use alternate genetic codes, and in confidence values for each gene call. We compare the results of MetaProdigal with other methods, and conclude with a discussion of future improvements.

AVAILABILITY:

The Prodigal software is freely available under the General Public License from http://code.google.com/p/prodigal/.