erm(C)

erythromycin ribosome methylase

Overview

Drug Classes
macrolides, lincosamides, streptogramin b, erythromycin, spiramycin, clindamycin
Organisms
Staphylococcus aureus, Streptococcus pyogenes, coagulase-negative staphylococci +1 more
Papers
5
Papers5
1

Antimicrobial Resistance Mechanisms and Molecular Detection Techniques

PMID 11585788 · 2023

The paper discusses molecular detection methods for antimicrobial resistance, focusing on genes like mecA and blaZ, which confer resistance to beta-lactam antibiotics in staphylococci.

Gene Information

Gene Name
erm(C)
Allele
ErmC
Encodes
erythromycin ribosome methylase
Validation Method
PCR and sequencing

Confers Resistance To

macrolideslincosamidesstreptogramin b

Organisms Tested In

Staphylococcus aureus
Streptococcus pyogenes

Isolation Details

Country
Europe|North America|Asia
2

Practical disk diffusion method for detection of inducible clindamycin resistance in Staphylococcus aureus and coagulase-negative staphylococci.

PMID 14532213 · 2003

The study identifies and characterizes the genes ermA, ermC, and msrA responsible for inducible and constitutive clindamycin resistance in Staphylococcus aureus and coagulase-negative staphylococci using PCR and disk diffusion testing.

Gene Information

Gene Name
erm(C)
Allele
ErmC
Encodes
ribosomal methylase
Validation Method
PCR and disk diffusion testing

Mechanism

methylation of 23S rRNA

Confers Resistance To

macrolideslincosamidesstreptogramin b

Organisms Tested In

Staphylococcus aureus
coagulase-negative staphylococci
3

Emergence and persistence of macrolide resistance in oropharyngeal flora and elimination of nasal carriage of Staphylococcus aureus after therapy with slow-release clarithromycin: a randomized, double-blind, placebo-controlled study.

PMID 15504839 · 2004

The study found that treatment with slow-release clarithromycin led to increased macrolide resistance in oropharyngeal flora, with significant rises in ermB and ermC genes in streptococci and staphylococci, respectively.

Gene Information

Gene Name
erm(C)
Allele
ErmC
Encodes
target modification
Validation Method
PCR and MIC testing

Confers Resistance To

macrolides

Organisms Tested In

Staphylococcus aureus
4

Antibiotic susceptibility of bacteria isolated from pasteurized milk and characterization of macrolide-lincosamide-streptogramin resistance genes.

PMID 15726980 · 2005

The study identified the ermC gene in 2 out of 25 Micrococcaceae strains resistant to erythromycin and/or spiramycin, indicating its role in macrolide-lincosamide-streptogramin resistance.

Gene Information

Gene Name
erm(C)
Allele
ErmC
Encodes
macrolide-lincosamide-streptogramin resistance
Validation Method
PCR and sequence analysis

Confers Resistance To

erythromycinspiramycin

Organisms Tested In

Micrococcaceae
5

Testing for induction of clindamycin resistance in erythromycin-resistant isolates of Staphylococcus aureus.

PMID 15814990 · 2005

The study identifies ermA, ermC, and msrA as genes responsible for clindamycin resistance in erythromycin-resistant Staphylococcus aureus isolates, with distinct phenotypes observed in disk diffusion testing.

Gene Information

Gene Name
erm(C)
Allele
ErmC
Encodes
ribosomal RNA methylase
Validation Method
PCR and disk diffusion testing

Confers Resistance To

erythromycinclindamycin

Organisms Tested In

Staphylococcus aureus
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