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T1783

Sigma-Aldrich

Tobramycin sulfate salt

aminoglycoside antibiotic

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Synonym(s):
Nebramycin Factor 6 sulfate
Empirical Formula (Hill Notation):
C18H37N5O9 · xH2SO4
Molecular Weight:
467.51 (free base basis)
MDL number:
UNSPSC Code:
51101500
PubChem Substance ID:
NACRES:
NA.85

biological source

Streptomyces tenebrarius

Quality Level

form

powder

potency

634-739 μg per mg

storage condition

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

color

white to off-white

solubility

H2O: soluble 50 mg/mL

antibiotic activity spectrum

Gram-negative bacteria

mode of action

protein synthesis | interferes

storage temp.

2-8°C

SMILES string

OS(O)(=O)=O.NC[C@H]1O[C@H](O[C@@H]2[C@@H](N)C[C@@H](N)[C@H](O[C@H]3O[C@H](CO)[C@@H](O)[C@H](N)[C@H]3O)[C@H]2O)[C@H](N)C[C@@H]1O

InChI

1S/C18H37N5O9.H2O4S/c19-3-9-8(25)2-7(22)17(29-9)31-15-5(20)1-6(21)16(14(15)28)32-18-13(27)11(23)12(26)10(4-24)30-18;1-5(2,3)4/h5-18,24-28H,1-4,19-23H2;(H2,1,2,3,4)/t5-,6+,7+,8-,9+,10+,11-,12+,13+,14-,15+,16-,17+,18+;/m0./s1

InChI key

ZEUUPKVZFKBXPW-TWDWGCDDSA-N

Related Categories

General description

Chemical structure: aminoglycoside

Application

Tobramycin is an aminoglycoside, broad-spectrum antibiotic produced by Streptomyces tenebrarius. It is effective against gram-negative bacteria, especially the pseudomonas species. It is not effective against Enterococci. It is used to inhibit bacterial protein synthesis at the level of 30S (16S rRNA) and 70S ribosomal complex assembly. It is used to treat pseudomonas aeruginosa lung infections and is used in combination with other antibiotics to treat urinary tract infections, gynecologic infections, peritonitis, endocarditis, pneumonia, sepsis, respiratory infections, osteomyelitis and other soft-tissue infections. It is a potential therapy for sinus infections. Product T1783 has been used to study antibiotic resistance.

Biochem/physiol Actions

Tobramycin binds irreversibly to one of two aminoglycoside binding sites on the 30 S ribosomal subunit, inhibiting bacterial protein synthesis. Tobramycin may also destabilize bacterial membranes by binding to 16 S r-RNA. It inhibits translocation and elicits miscoding. Tobramycin binds to an RNA aptamer, which is structurally similar to the A site of 16S rRNA.
Tobramycin sulfate is an aminoglycoside.
Mode of Action: Binds to 70S ribosomal subunit; inhibits translocation; elicits miscoding.
Spectrum of Activity: Gram negative bacteria. Not effective against Enterococci.

Packaging

100MG,500MG

Caution

Hygroscopic

Other Notes

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

pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Repr. 1B

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


Certificates of Analysis (COA)

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Patrik Mlynarcik et al.
Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia, 161(1), 58-67 (2016-11-26)
Planktonic stationary and exponential cultures of Pseudomonas aeruginosa are highly resistant to killing by bactericidal antimicrobials because of the presence of persisters, cells that are multidrug tolerant and play a key role in the recalcitrance of biofilm infections. The aim
Erica B Ricker et al.
Biofouling, 33(10), 855-866 (2017-10-19)
Upon formation of a biofilm, bacteria undergo several changes that prevent eradication with antimicrobials alone. Due to this resistance, the standard of care for infected medical implants is explantation of the infected implant and surrounding tissue, followed by eventual reimplantation
Hessel Van der Weide et al.
Antibiotics (Basel, Switzerland), 9(3) (2020-03-07)
Background: Recent scientific reports on the use of high dose tigecycline monotherapy as a "drug of last resort" warrant further research into the use of this regimen for the treatment of severe multidrug-resistant, Gram-negative bacterial infections. In the current study
David Moreno-González et al.
Talanta, 171, 74-80 (2017-05-30)
An analytical method for the determination of eleven aminoglycosides in different types of milk and milk-based functional products has been optimized and validated. A hydrophilic interaction chromatography (HILIC) column was proposed for the separation of analytes by ultra-high performance liquid
Ellen G Christensen et al.
Antimicrobial agents and chemotherapy, 55(9), 4064-4071 (2011-07-13)
The human food-borne pathogen Listeria monocytogenes is capable of persisting in food processing plants despite cleaning and sanitation and is likely exposed to sublethal biocide concentrations. This could potentially affect susceptibility of the bacterium to biocides and other antimicrobial agents.

Articles

Antibiotics targeting bacterial ribosomes disrupt protein synthesis, a key process in bacterial growth inhibition.

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