Journal: Microbial Cell Factories
Article Title: Scalable protein production by Komagataella phaffii enabled by ARS plasmids and carbon source-based selection
doi: 10.1186/s12934-024-02368-3
Figure Lengend Snippet: Vector map of a general ARS plasmid carrying a carbon marker cassette. Besides an origin of replication and an Ampicillin resistance cassette for cloning in E. coli , the episomal plasmids used in this study harbor the PARS1 sequence for the replication in K. phaffii , a reporter cassette with the de-repressable P DC promoter driving Ca lB expression, whose secretion is facilitated by the D-alpha signal sequence, a deletion variant of the S. cerevisiae mating factor alpha signal peptide. Selective pressure in K. phaffii is provided by either GUT1 or TPI1 genes with one of the 5 tested promoters placed upstream
Article Snippet: It was kindly provided by Bisy GmbH (Hofstaetten a. d. Raab, Austria) and was made by deletion of the GUT1 gene of the killer plasmid-free Mut S platform strain K. phaffii BG11 (Biogrammatics, Carlsbad, CA).
Techniques: Plasmid Preparation, Marker, Clone Assay, Sequencing, Expressing, Variant Assay