The baculovirus-insect cell expression system is a binary system, consisting of a recombinant baculovirus as the vector and lepidopteran insect cells or larvae as the hosts. One widely recognized and highly attractive protein-processing capability of the baculovirus-insect cell system is protein N-glycosylation.
What is Sf9 cell line?
The Sf9 insect cell line is a clonal isolate derived from the parental Spodoptera frugiperda cell line IPLB-Sf-21-AE, and it is a suitable host for expression of recombinant proteins from baculovirus expression systems (e.g., Invitrogen’s Bac-to-Bac® and Bac-N-Blue™ Expression Systems).
What are Sf9 cells used for?
Sf9 cells, a clonal isolate of Spodoptera frugiperda Sf21 cells (IPLB-Sf21-AE), are commonly used in insect cell culture for recombinant protein production using baculovirus. They were originally established from ovarian tissue. They can be grown in the absence of serum, and can be cultured attached or in suspension.
Are Sf9 cells adherent?
Sf9 (along with Sf21 and High5s) are happy switching between suspension and ‘adherent’ culture. You can transfect them in either state without any problem.
Where do MDCK cells come from?
The Swiss drugmaker manufacturers its vaccines using Madin-Darby Canine Kidney (MDCK) cells derived from a female cocker spaniel in 1958, which provide for a much simpler and more reliable production process according to spokeswoman Elizabeth Power.
What is the structure of SF9?
SF9 : Summary
| Code | SF9 |
|---|---|
| Systematic names | Program Version Name ACDLabs 12.01 beta-L-psicofuranose OpenEye OEToolkits 1.7.6 (2S,3S,4R,5S)-2,5-bis(hydroxymethyl)oxolane-2,3,4-triol |
| Formula | C6 H12 O6 |
| Formal charge | 0 |
| Molecular weight | 180.156 Da |
What is the function of baculovirus?
Baculoviruses are insect pathogenic viruses that are used for pest insect control and as tools to produce recombinant proteins. Numerous studies show that both natural baculoviruses and genetically modified (GM) baculoviruses hold clear and substantial benefits for crop protection.
What is baculovirus expression system?
A baculovirus expression vector (BEV) is a recombinant baculovirus with a double-stranded circular DNA genome that has been genetically modified to include a foreign gene of interest. BEVs are viable and can infect susceptible hosts, usually cultured lepidopteran insect cells or larvae, in a helper-independent fashion.
What is A549 cells?
A549 cells are lung carcinoma epithelial cells that constitute a cell line. A549 is one of the commonly used cell lines for a wide range of research applications.
Why are MDCK cells used?
MDCK cells are used for a wide variety of cell biology studies including cell polarity, cell-cell adhesions (termed adherens junctions), collective cell motility, as well as responses to growth factors.
What is SF9 SHS?
Private schools, state and local colleges and universities as well as other higher educational institutions offering basic education are enjoined to adopt the said forms. The Progress Report Card was renamed to Learner’s Progress Report Card of SF9.
How do you write your name in SF9?
The arrangement of learners’ names in the SF9 (formerly Form 138) should be written the way it was generated in the SF5. Currently, the system-generated SFs print the name of learners in this order: last name, first name, name extension, and middle name.
What is the Sf9 insect cell line?
The Sf9 insect cell line is a clonal isolate derived from the parental Spodoptera frugiperda cell line IPLB-Sf-21-AE, and it is a suitable host for expression of recombinant proteins from baculovirus expression systems (e.g., Invitrogen’s Bac-to-Bac® and Bac-N-Blue™ Expression Systems). Although insect cells have been…
What is the seeding density of Sf9 insect cells?
Figure 3.5: Phase contrast images of healthy Sf9 insect cells grown in suspension. The culture was started in a shake flask at a seeding density of 3 × 105 viable cells/mL in Sf-900 II SFM medium and it was maintained in a 28°C, non-humidified, ambient air-regulated incubator.
Can insect cells be maintained in suspension culture?
Although insect cells have been historically cultured in stationary systems utilizing T-flasks and serum-supplemented basal medium, insect cells are generally not anchorage dependent and can easily be maintained in suspension culture. The images below show the morphology of healthy Sf9 insect cells in suspension and adherent cultures.
What is the seeding density for sf-900 II SFM culture?
The culture was started in a shake flask at a seeding density of 3 × 105 viable cells/mL in Sf-900 II SFM medium and it was maintained in a 28°C, non-humidified, ambient air-regulated incubator. The images were obtained using 10X and 20X objectives (panels A and B, respectively) 3 days after seeding.
