Codon usage bias analysis when comparing RNA-seq and proteome

Question

[predeus]

Dear Biostars community,

I was wondering if someone here could recommend a tool that could analyze a change in codon usage bias when comparing mRNA (RNA-seq) and shotgun proteome studies?

I am totally oblivious as to how this is done in general, so any pointers/questions/discussion would be appreciated.

Thank you, as always.