Komagataella is a methyl nutritious yeast belonging to the order Saccharomycetales. It was discovered in the 1960s and was named Pichia pastoris.The yeast uses methanol as a carbon source and energy source, and was subsequently reclassified as the only representative of Komagataella genus in 1995.In 2005, it was discovered that almost all the lines used in industries and laboratories were actually another species, K. phaffii, and subsequent studies further established seven known species of the genus.By 2023, the old name is still used in some contexts of protein production; in informal occasions, the yeast may be confusingly called pichia.Years of research have enabled Komagataella to be widely used in the biochemical research and biotechnology industries, especially in protein production and genetic research.
Komagataella is found in nature on trees, such as chestnut trees.They are heterocamped organisms that can survive using a variety of carbon sources, including glucose, glycerol and methanol, but cannot use lactose.This allows them to find a way to survive in different environments.
Komagataella can perform asexual and sexual reproduction, through budding and ascospores, respectively.In this process, there are two cell types: haploid and diploid cells.During the asexual life cycle, haploid cells undergo mitosis.During the sexual life cycle, diploid cells undergo sporulation and meiosis.Its colonial growth rate is variable, from nearly zero to one hour doubling time, which provides highly adaptable conditions for industrial processes.
In recent years, Komagataella has been identified as an excellent model organism, which has several significant advantages.First of all, the cultivation and use of Komagataella is relatively simple.Compared with other widely used yeast models, it has a shorter life cycle and fast regeneration time.In addition, several cheap culture media were designed to grow at high cell density in a short period of time.The invested whole-genome sequencing has been completed, helping scientists identify the evolutionary relationship between homologous proteins and other yeast species.
"Komagataella, as a gene model organism, can perform gene analysis and large-scale gene mating, which is particularly important for its research."
As an experimental model, Komagataella is mainly used as a transformation host system.With its ability to recombinate with exogenous DNA and its ability to process large proteins, many studies have focused on using Komagataella as a transformation host to produce new proteins and examine the functions of artificial proteins.
Komagataella is currently often used as a production system for heterologous proteins.Typically, certain lines have mutations in the HIS4 gene, which allows those cells that have been successfully transformed.These traits make Komagataella suitable for high-density cell culture and protein expression, resulting in high yield performance.
"Although Komagataella has significant advantages in the production of heterologous proteins, it still faces challenges in the correct folding of certain proteins because of the lack of proper cambodin."
Komagataella has been used in several biotech industries, such as the pharmaceutical industry.In recent years, it has been used to produce more than 500 biotherapeutic agents, such as interferon gamma, showing its wide application potential in industrial production.
In summary, Komagataella's way of reproduction and survival determines its resilience and opportunity in different environments.Its diversity makes it an important tool for many life science research and promotes the development of new technologies and products.In the future, will there be more unknown creatures waiting for us to discover?