Spectinomycin
Based on 6 publication(s) in Google Scholar
Spectinomycin is a broad-spectrum antibiotic and inhibits the growth of a variety of gram-positive and gram-negative organisms. Spectinomycin acts by selectively targeting to the bacterial ribosome and interrupting protein synthesis. Spectinomycin is also a noncompetitive inhibitor of td intron RNA.
The free form of the compound is prone to instability, it is advisable to consider the stable salt form (Spectinomycin dihydrochloride pentahydrate and Spectinomycin dihydrochloride) that retains the same biological activity.
For research use only. We do not sell to patients.
- CAS No.: 1695-77-8
- Formula: C14H24N2O7
- Molecular Weight:332.35
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biological Activity
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Chemical Information
- Protocols
- Purity & Documentation
- References
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Publications Citing Use of MedChemExpress (MCE) Spectinomycin
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Biological Activity
Description
IC50 & Target
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Aminoglycoside |
In Vitro
Spectinomycin selectively inhibits protein synthesis in cells and in extracts of Escherichia coli.
Spectinomycin (50 μg/mL) inhibits Escherichia coli growth rapidly and reversibly, and suppresses amino acid incorporation immediately[1].
Spectinomycin (1 μg/mL or 3 μM) inhibits polypeptide synthesis directed either by endogenous messenger RNA or by MS-2 bacteriophage RNA, with maximum inhibition of 70-80% in extracts of Escherichia coli[1].
Spectinomycin blocks the translocation of peptidyl-tRNAs from A-site to P-site by inhibiting the binding of elongation factor G to the ribosome[2].
Spectinomycin interacts specifically with the residues G1064 and 01192 in 16S rRNA and potentially makes it inactive[2].
Spectinomycin exhibits splicing inhibition and dependent on pH changes and Mg2+ concentration, indicating electrostatic interactions with the intron RNA[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
Spectinomycin (10 mg/kg; i.v.; single dose) has the major elimination pathway by renal excretion, approximately 55% is excreted into the urine in unchanged form[5].
Pharmacokinetics of Spectinomycin in Rat[5]
| Parameter | C0 (μg/mL) | AUC0-∞ (μg h/mL) | Vd (L/kg) | CL (L/h/kg) | MRT (h) | T1/2α (h) | T1/2β (h) | T1/2γ (h) | fe | CLrenal (L/h/kg) | Eratio |
| Non atrioventricular analysis | 44.3 | 16.8 | 0.756 | 0.602 | 0.757 | / | / | / | 0.553 | 0.359 | 1.00 |
| Three-compartment model | 37.8 | 15.7 | 0.747 | 0.649 | 1.11 | / | 0.237 | 0.754 | 19.5 | / | / |
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Arbor Acres plus broiler chicks (15-day-old)[4]
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Dosage:20 mg/kg, 60 mg/kg, 100 mg/kg
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Administration:Intramuscular injection (chest muscles); 9 days
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Result:Showed biosecurity of 20 mg/kg by complete blood count, biochemical parameters, histopathological, clinical signs, body weight gain, and feed conversion ratio (FCR).
Resulted minor toxicity of 60 mg/kg.
Chemical Information
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CAS No. 1695-77-8
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Molecular Weight 332.35
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Formula C14H24N2O7
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SMILES
O=C1C[C@@H](C)O[C@@]2([H])O[C@@]3([H])[C@]([C@@H](NC)[C@@H](O)[C@@H](NC)[C@@H]3O)([H])O[C@]21O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (6)
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Journal Impact Factor
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Most Recent
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Nucleic Acids Res
PhoP-regulated VirK acts as an accessory factor to maintain virulence in polymyxin-resistant Klebsiella pneumoniae. [Abstract]2026 Apr 23;54(8):gkag290. PMID: 42033226 -
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BMC Vet Res
Identification of a broad-spectrum lytic Myoviridae bacteriophage using multidrug resistant Salmonella isolates from pig slaughterhouses as the indicator and its application in combating Salmonella infections. [Abstract]2022 Jul 12;18(1):270. PMID: 35821025 -
Vet Microbiol
Discovery of the tigecycline resistance gene cluster tmexCD3-toprJ1 in Pasteurella multocida strains isolated from pigs in China. [Abstract]2024 May:292:110046. PMID: 38471428 -
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Purity & Documentation
References
[1]. Davies J, et al. Inhibition of protein synthesis by spectinomycin. Science. 1965 Sep 3;149(3688):1096-8. [Content Brief]
[2]. Brink MF, et al. Spectinomycin interacts specifically with the residues G1064 and C1192 in 16S rRNA, thereby potentially freezing this molecule into an inactive conformation. Nucleic Acids Res. 1994 Feb 11;22(3):325-31. [Content Brief]
[3]. Park IK, et al. Spectinomycin inhibits the self-splicing of the group 1 intron RNA. Biochem Biophys Res Commun. 2000 Mar 16;269(2):574-9. [Content Brief]
[4]. Khan EA, et al. Safety evaluation study of lincomycin and spectinomycin hydrochloride intramuscular injection in chickens. Toxicol Rep. 2022 Jan 29;9:204-209. [Content Brief]
[5]. Madhura DB, et al. Pharmacokinetic profile of spectinomycin in rats. Pharmazie. 2013 Aug;68(8):675-6. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Spectinomycin Related Classifications
HY-B1828 Related Classifications
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