ExtRamp: a novel algorithm for extracting the ramp sequence based on the tRNA adaptation index or relative codon adaptiveness.Different species, genes, and locations within genes use different codons to fine-tune gene expression.  We present ExtRamp, a software package that quickly extracts ramp sequences from any species using the tRNA adaptation index or relative codon adaptiveness.  We validate the existence of a ramp sequence in most species by running ExtRamp on 229 742 339 genes across 23 428 species.  ExtRamp is freely available at https://github.com/ridgelab/ExtRamp.
ExtRamp