Mean of the typical decoding rates: a new translation efficiency index based on the analysis of ribosome profiling data

G3 (Bethesda). 2014 Dec 1;5(1):73-80. doi: 10.1534/g3.114.015099.

Abstract

Gene translation modeling and prediction is a fundamental problem that has numerous biomedical implementations. In this work we present a novel, user-friendly tool/index for calculating the mean of the typical decoding rates that enables predicting translation elongation efficiency of protein coding genes for different tissue types, developmental stages, and experimental conditions. The suggested translation efficiency index is based on the analysis of the organism's ribosome profiling data. This index could be used for example to predict changes in translation elongation efficiency of lowly expressed genes that usually have relatively low and/or biased ribosomal densities and protein levels measurements, or can be used for example for predicting translation efficiency of new genetically engineered genes. We demonstrate the usability of this index via the analysis of six organisms in different tissues and developmental stages. Distributable cross platform application and guideline are available for download at: http://www.cs.tau.ac.il/~tamirtul/MTDR/MTDR_Install.html.

Keywords: codon decoding rate; codon usage bias; gene translation; ribosome profiling; transcript evolution.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bacillus subtilis / genetics
  • Bacillus subtilis / metabolism
  • Bacterial Proteins / metabolism
  • Caenorhabditis elegans / genetics
  • Caenorhabditis elegans / metabolism
  • Caenorhabditis elegans Proteins / metabolism
  • Codon
  • Escherichia coli / genetics
  • Escherichia coli / metabolism
  • Humans
  • Mice
  • Protein Biosynthesis*
  • RNA, Messenger / metabolism
  • Ribosomes / genetics*
  • Saccharomyces cerevisiae / genetics
  • Saccharomyces cerevisiae / metabolism
  • Saccharomyces cerevisiae Proteins / metabolism

Substances

  • Bacterial Proteins
  • Caenorhabditis elegans Proteins
  • Codon
  • RNA, Messenger
  • Saccharomyces cerevisiae Proteins