Only a subset of the PAB1-mRNP proteome is present in mRNA translation complexes.

We have previously identified 55 nonribosomal proteins in PAB1-mRNP complexes in Saccharomyces cerevisiae using mass spectrometric analysis. Because one of the inherent limitations of mass spectrometry is that it does not inform as to the size or type of complexes in which the proteins are present, we consequently used analytical ultracentrifugation with… CONTINUE READING