National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Tobramycin Sulfate
Synonyms

Tobramycin Sulfate

TOBRAMYCIN SULFATE

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.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C893

CAS_Registry

49842-07-1

79645-27-5

Chemical_Formula

2C18H37N5O9.5H2O4S

code

C893

Concept_In_Subset

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C176424

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C63923

Contributing_Source

FDA

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.

FDA_UNII_Code

HJT0RXD7JK

FULL_SYN

Tobramycin Sulfate

TOBRAMYCIN SULFATE

Tobrex

Has_Free_Acid_Or_Base_Form

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C62082

label

Tobramycin Sulfate

Legacy Concept Name

Tobramycin

NCI_Drug_Dictionary_ID

39727

NSC Number

180514

PDQ_Closed_Trial_Search_ID

39727

PDQ_Open_Trial_Search_ID

39727

Preferred_Name

Tobramycin Sulfate

prefixIRI

Thesaurus:C893

Semantic_Type

Organic Chemical

Pharmacologic Substance

Antibiotic

UMLS_CUI

C0027519

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C2363

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