. 2023 Oct 14;12(10):1538. doi: 10.3390/antibiotics12101538

Table 5.

Distribution of MIC of tested quinolones and amino acid substitutions in gyrA gene in quinolone-resistant Gemella isolates.

Strain	n	MIC (μg/mL)		GyrA Amino Acid Substitutions ^a
Strain	n	Levofloxacin	Moxifloxacin	GyrA Amino Acid Substitutions ^a
Gemella morbillorum	2	>128	>2	Ser83 > Leu83 (n = 2)
GH group	9	128–>128	>2	Ser83 > Phe83 (n = 7), Ser83 > Tyr83 (n =2)
Gemella taiwanensis	8	128–>128	>2	Ser83 > Phe83 (n = 7), Ser83 > Tyr83 (n = 1)
Gemella sanguinis	2	128–>128	>2	Ser83 > Phe83 (n = 2)

^a gyrA-Ser83 Leu: serine to leucine at codon 83; Ser83 Phe: serine to phenylalanine at codon 83; Ser83 Tyr; serine to tyrosine at codon 83.