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A1720

Sigma-Aldrich

G 418 disulfate salt

powder, BioReagent, suitable for cell culture

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Synonym(s):
Antibiotic G418
Empirical Formula (Hill Notation):
C20H40N4O10 · 2H2SO4
CAS Number:
108321-42-2
Molecular Weight:
692.71
MDL number:
MFCD00058314
PubChem Substance ID:
24890581
NACRES:
NA.76

product line

BioReagent

form

powder

optical activity

[α]/D (Specific Rotation: +104.4o (c=0.3% in H2O at 26oC))

potency

≥720 μg per mg (Dried basis)

mol wt

692.7

packaging

pkg of 1 g
pkg of 25 g
pkg of 5 g

technique(s)

cell culture | mammalian: suitable

color

white to off-white

solubility

H2O: 100 mg/mL (As a stock solution. Stock solutions should be stored at 2-8°C. Stable at 37°C for 8 days.)

antibiotic activity spectrum

Gram-negative bacteria

Mode of action

protein synthesis | interferes

storage temp.

2-8°C

SMILES string

OS(O)(=O)=O.OS(O)(=O)=O.CN[C@H]1[C@H](O)[C@@H](OC[C@@]1(C)O)O[C@H]2[C@H](N)C[C@H](N)[C@@H](O[C@H]3O[C@H]([C@H](C)O)[C@@H](O)[C@H](O)[C@H]3N)[C@@H]2O

InChI

1S/C20H40N4O10.2H2O4S/c1-6(25)14-11(27)10(26)9(23)18(32-14)33-15-7(21)4-8(22)16(12(15)28)34-19-13(29)17(24-3)20(2,30)5-31-19;2*1-5(2,3)4/h6-19,24-30H,4-5,21-23H2,1-3H3;2*(H2,1,2,3,4)/t6?,7-,8+,9+,10+,11-,12-,13-,14+,15+,16-,17-,18+,19-,20+;;/m0../s1

InChI key

UHEPSJJJMTWUCP-NKCAIAFTSA-N

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General description

Chemical structure: aminoglycoside
G-418 is an aminoglycoside antibiotic, which is produced by Micromonospora rhodorangea NRRL 5326 strain. It has a broad range of antibacterial activity both in vivo and in vitro. It also shows activity against protozoa, cecal amoebiasis, and helminthes. It is commonly known as geneticin selective antibiotic.

Application

G418 disulfate salt is an aminoglycoside antibiotic similar in structure to gentamicin used for selection and maintenance of prokaryotic and eukaryotic cells transfected with a iNOS promoter construct and neomycin resistance gene†. Optimal concentrations for selection and maintenance vary by cell lines. Bacteria and algae require 5 μg/mL or less while animal cells may require 300-500 μg/mL.

Biochem/physiol Actions

G-418 inhibits protein synthesis at the early stages of elongation, post-initiation, at the initiation stage of translation as well as just before the initiation stage of translation.

Caution

The product is stable for two years when stored at 2-8°C. Stock solutions are stable at 37°C for 8 days.

Preparation Note

G418 powder is soluble in water at 100 mg/mL.

Other Notes

Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H317 - H334

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

涉药品监管产品

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G H Wagman et al.
Antimicrobial agents and chemotherapy, 6(2), 144-149 (1974-08-01)
Antibiotic G-418 is a new aminoglycoside produced as the major component by a new species of Micromonospora, M. rhodorangea NRRL 5326. The antibiotic is prepared by submerged fermentation in a soybean-dextrin medium. Antibiotic G-418 is adsorbed on a cationic-exchange resin
D C Eustice et al.
Antimicrobial agents and chemotherapy, 26(1), 53-60 (1984-07-01)
Tetrahymena thermophila is a eucaryotic organism that is highly susceptible to growth inhibition by aminoglycoside antibiotics. Concentrations of paromomycin, gentamicin G418, and hygromycin B at 22, 10, and 17 microM, respectively, inhibited growth by 50%. A combination of in vitro
Serene R Lai et al.
Methods in molecular biology (Clifton, N.J.), 405, 31-37 (2008-03-29)
RNA interference (RNAi) is one of the most commonly used procedures for gene targeting in today's cutting edge technology and has great potential for use in clinical therapy. Using a plasmid construct that exogenously expresses short-hairpin RNAs (shRNAs) targeting a
Hillary C Valley et al.
Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society, 18(4), 476-483 (2018-12-20)
Assessment of approved drugs and developmental drug candidates for rare cystic fibrosis (CF)-causing variants of the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) requires abundant material from relevant models. Isogenic cell lines harboring CFTR variants in the native genomic context were
Jingjing Wu et al.
Laboratory investigation; a journal of technical methods and pathology, 99(2), 169-179 (2018-11-08)
The roles and downstream target genes of the transcription factor ZNF326 in malignant tumors are unclear. Out of 146 lung cancer tissue samples, we found that high expression of ZNF326 in 82 samples was closely related to low differentiation and
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