Vectors for expressing in vivo biotinylated recombinant proteins

摘要

The present invention provides compositions and methods for generating in vivo biotinylated, secreted recombinant polypeptides comprising recombinantly co-expressing in a yeast cell (a) a secreted recombinant polypeptide comprising a biotin accepting site; and (b) a biotin ligase fused to the golgi localization domain so that the biotin ligase is localized to the golgi of the yeast cell where it acts on the biotin-accepting site of the secreted polypeptide as it transits the secretory system.