Figure 1
From: Towards universal systems for recombinant gene expression
Percentage of all proteins reported to be produced in E. coli or P. pastori s recombinant gene expression systems based on literature searches. The PubMed citation database http://www.ncbi.nlm.nih.gov/pubmed/ or the journal Microbial Cell Factories http://http://www.microbialcellfactories.com/ was searched using "recombinant protein" only or in combination with "Escherichia coli" or "Pichia pastoris" as a keyword. Data represent the percent of total citations found by searching using "recombinant protein" that was found when that term was combined with one of the two organism names. Citation data are presented for the last 15 years for PubMed and the last 5 years for Microbial Cell Factories.