Physician Data Query

Last uploaded: January 31, 2024
Preferred Name

tobramycin sulfate

Synonyms

Tobrex

Definitions

The sulfate salt of tobramycin, an aminoglycoside antibiotic derived from the bacterium Streptomyces tenebrarius with bactericidal activity. Following active transport into the cell, tobramycin binds irreversibly to a specific aminoglycoside receptor on the bacterial 30S ribosomal subunit and fixes the 30 S-50 S ribosomal complex at the start codon (AUG), interfering with the initiation of protein synthesis. In addition, this agent induces misreading of the mRNA template, which results in 1) detachment of the ribosomal complex and inhibition of protein elongation or 2) incorporation of the incorrect amino acids into the growing polypeptide chain and the production of abnormal or nonfunctional proteins. Altogether, cell permeability is altered and cell death ensues. Check for "https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C893" active clinical trials using this agent. ("http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C893" NCI Thesaurus)

ID

http://purl.bioontology.org/ontology/PDQ/CDR0000039727

altLabel

Tobrex

CAS Registry

49842-07-1

Component of

http://purl.bioontology.org/ontology/PDQ/CDR0000041547

cui

C0027519

C0723768

Date last modified

2017-11-02

definition

The sulfate salt of tobramycin, an aminoglycoside antibiotic derived from the bacterium Streptomyces tenebrarius with bactericidal activity. Following active transport into the cell, tobramycin binds irreversibly to a specific aminoglycoside receptor on the bacterial 30S ribosomal subunit and fixes the 30 S-50 S ribosomal complex at the start codon (AUG), interfering with the initiation of protein synthesis. In addition, this agent induces misreading of the mRNA template, which results in 1) detachment of the ribosomal complex and inhibition of protein elongation or 2) incorporation of the incorrect amino acids into the growing polypeptide chain and the production of abnormal or nonfunctional proteins. Altogether, cell permeability is altered and cell death ensues. Check for "https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C893" active clinical trials using this agent. ("http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C893" NCI Thesaurus)

Legacy PDQ ID

2389

LT

TRD

NCI ID

C893

notation

CDR0000039727

NSC Code

180514

ORIG STY

Drug/agent

prefLabel

tobramycin sulfate

tui

T109

T195

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