1.Pichia pastoris: A popular yeast strain for high-level expression of recombinant proteins. It can grow to high cell densities and perform eukaryotic post-translational modifications, making it suitable for both research and industrial applications. 

     2.Saccharomyces cerevisiae: Known as baker’s yeast, this strain is widely used for its ease of genetic manipulation, rapid growth, and ability to perform eukaryotic modifications. It’s commonly used for pharmaceutical proteins and enzymes. 

     3.Hansenula polymorpha: This methylotrophic yeast is capable of using methanol as a carbon source and is known for its high expression levels of recombinant proteins, particularly in large-scale production environments. 

     4.Kluyveromyces lactis: Often used for expressing enzymes and therapeutic proteins, this yeast strain is efficient in secreting recombinant proteins, simplifying downstream purification processes. 

     5.Yarrowia lipolytica: Known for its ability to secrete large amounts of proteins and for lipid metabolism studies, this yeast strain is emerging as a host for recombinant protein production with unique applications in biopharmaceuticals and industrial enzymes. 

     6.Schizosaccharomyces pombe: A fission yeast used for producing proteins with complex post-translational modifications. Its unique biology makes it an alternative system for specific types of recombinant proteins. 

Common yeast strains used for protein expression include Pichia pastoris for high-level expression, Saccharomyces cerevisiae for pharmaceutical applications, and other strains like Hansenula polymorpha, Kluyveromyces lactis, Yarrowia lipolytica, and Schizosaccharomyces pombe, each chosen for their specific advantages in protein yield and post-translational modifications. 

GenCefe provide one-stop solutions from codon optimization, gene synthesis, to protein expression and purification. In addition to four conventional expression systems of bacterial, yeast,insect cell, and mammalian cell, we have also developed a patented cell free expression technology, which is suitable for the production of difficult proteins such as toxic proteins and membrane proteins.