Home Microbiology Antibiotics inhibitor G418 Sulfate (Geneticin)

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G418 Sulfate (Geneticin) Antibiotic

Cat.No.S3028

Geneticin (G418 Sulfate), an aminoglycoside antibiotic, is an elongation inhibitor of 80 S ribosomes that blocks polypeptide synthesis by inhibiting the elongation step in both prokaryotic and eukaryotic cells.It is commonly used as a screening reagent for eukaryotic cells to screen transfected or transformed cells.
G418 Sulfate (Geneticin) Antibiotics inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 692.71

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Quality Control

Batch: Purity: >97%
97

Cell Culture, Treatment & Working Concentration

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
GES-1 cells Function assay be used to select and expand the G418-resistant colonies 29963172
A549 cells Cell viability assay 100-1200 μg/ml IC50=494.1 μg/ml 30594785
Sf21 cells Function assay 60 mins Inhibition of ribosomal activity in Spodoptera frugiperda Sf21 cells assessed as inhibition of translation after 60 mins by fluorescence assay, IC50 = 2 μM. 20409719
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Solubility

In vitro
Batch:

Water : 100 mg/mL

DMSO : Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

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In vivo
Batch:

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Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
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Chemical Information, Storage & Stability

Molecular Weight 692.71 Formula

C20H40N4O10.2H2SO4

 Storage (From the date of receipt)
CAS No. 108321-42-2 Download SDF Storage of Stock Solutions

Synonyms N/A Smiles CC(C1C(C(C(C(O1)OC2C(CC(C(C2O)OC3C(C(C(CO3)(C)O)NC)O)N)N)N)O)O)O.OS(=O)(=O)O.OS(=O)(=O)O

Mechanism of Action

In vitro

G418 is an inhibitor of many pro- and eukaryotes at concentrations from 1-300 microgram/ml. Resistance to G418 conferring by the neo gene from Tn5 encoding an aminoglycoside 3'-phosphotransferase, APT 3' II is commonly used in laboratory research to select genetically engineered cells.

In general for bacteria and algae concentrations of 5 mg/L or less are used, for mammalian cells concentrations of approximately 400 mg/L are used for selection and 200 mg/L for maintenance. Resistant clones selection could require from 1 to up to 3 weeks.

In vivo

Doses of G418 of between 40 and 80 mg/kg for three consecutive days are sufficient to eliminate all nontransfected T. brucei brucei parasites from infected mice.

References
  • [4] https://pubmed.ncbi.nlm.nih.gov/30594785/
  • [5] https://pubmed.ncbi.nlm.nih.gov/20729841/

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