Blasticidin is an efficient selection antibiotic that acts on both eukaryotic and prokaryotic cells. Blasticidin is a peptidyl nucleoside antibiotic isolated from Streptomyces griseochromogenes that inhibits protein synthesis by interfering with the peptide-bond formation in the ribosomal machinery.

How do you make Blasticidin stock?

Prepare Blasticidin stock solutions of 5-10 mg/ml by dissolving Blasticidin in sterile water and filter-sterilize the solution. Blasticidin is soluble in water and acetic acid. Aliquot in small volumes suitable for one time use and store at 4ºC (short term) or at -20ºC (long-term).

What is G418 selection?

Gibco® Geneticin® Selective Antibiotic (G418 Sulfate) is used as a selective antibiotic in the concentration range of 100 – 200 µg/ml for bacteria, or 200 – 500 µg/ml for most mammalian cells. This product is supplied as a 50 mg/ml solution in water. We offer a variety of cell culture antibiotics for your convenience.

How does puromycin resistance gene work?

Cell culture It is toxic to prokaryotic and eukaryotic cells. Resistance to puromycin is conferred by the pac gene encoding a puromycin N-acetyl-transferase (PAC) that was found in a Streptomyces producer strain. Puromycin acts quickly and can kill up to 99% of nonresistant cells within 2 days.

How does puromycin selection work?

This compound works by interrupting protein synthesis in both prokaryotic and eukaryotic cells. This causes cells to die, unless they have a gene for resistance, allowing them to survive exposure to the antibiotic.

What is the difference between neomycin and G418?

In general, neomycin is used in experiments on prokaryotic cells, while G418 is used in eukaryotic experiments. This difference in mechanism of action from G418 makes hygromycin most useful in dual-selection experiments where another selection antibiotic is also used.

Is G418 and neomycin the same?

G418 is an analog of neomycin sulfate, and has similar mechanism as neomycin. G418 is commonly used in laboratory research to select genetically engineered cells .

What is the puromycin resistance gene?

Puromycin is used in cell biology as a selective agent in cell culture systems. It is toxic to prokaryotic and eukaryotic cells. Resistance to puromycin is conferred by the pac gene encoding a puromycin N-acetyl-transferase (PAC) that was found in a Streptomyces producer strain.

How does puromycin function as inhibitor of the translation process?

Puromycin is a naturally occurring aminonucleoside antibiotic that inhibits protein synthesis by ribosome-catalyzed incorporation into the C-terminus of elongating nascent chains, blocking further extension and resulting in premature termination of translation.

What is the concentration of puromycin for selection?

0.5 – 10 µg/ml
Puromycin antibiotic ensures effective positive selection of cells expressing the puromycin-N-acetyl- transferase (pac) gene. In mammalian cells, the recommended working concentration range for puromycin is 0.5 – 10 µg/ml.

What is blasticidin S deaminase used for?

Blasticidin S (hereafter referred to as “blasticidin”) is an antibiotic that inhibits cytosolic protein synthesis by blocking ribosomal translation termination ( Svidritskiy et al., 2013 ). Blasticidin S deaminase (BSR) detoxifies blasticidin by catalyzing its deamination ( Seto et al., 1966; Endo et al., 1987 ).

What is the mechanism of action of blasticidin?

Blasticidin is an efficient selection antibiotic that acts on both eukaryotic and prokaryotic cells. Blasticidin is a peptidyl nucleoside antibiotic isolated from Streptomyces griseochromogenes that inhibits protein synthesis by interfering with the peptide-bond formation in the ribosomal machinery.

Is there a new marker for blasticidin S resistance?

We report here the development of a new selectable marker based on the resistance to the antibiotic blasticidin S, using the Bacillus cereus blasticidin S deaminase ( BSR) gene. The optimal concentration of blasticidin S for effective selection was determined in both liquid and solid media and tested for multiple laboratory strains.

What is the selection concentration of blasticidin in mammalian cells?

What is the selection concentration of Blasticidin in mammalian cells? The working concentration of Blasticidin for mammalian cell lines varies between 1 – 10 μg/ml, with a few reported cases of up to 30 μg/ml. In an initial experiment we recommend to determine the optimal concentration of Blasticidin required to kill your host cell line.