Table 1 Antimicrobial resistance gene profiling for S1 and S2 samples.

From: Phylogenetic diversity and functional potential of the microbial communities along the Bay of Bengal coast

Antimicrobial class

Resistance genes (> 80% coverage)

Major mode of resistance

S1 samples

S2 samples

Aminoglycosides

A16S group

rrsC, rrsH, rpsL,

aadA1, aac(6')-Ib11, aac(6')-Ib, A16S group,

rrsC, rrsH

Aminoglycoside N-acetyl transferase;

Aminoglycoside-resistent 16 s ribosomal subunit protein

Tetracycline

 

tet(G),

tet(X)

Tetracycline efflux MFS transporter Tet(G)

Tetracycline-inactivating monooxygenase Tet(X)

Fluoroquinolones and Quinolones

qnrVC

gyrA

qnrS

quinolone resistance pentapeptide repeat protein QnrVC1 and QnrVC4

quinolone resistance pentapeptide repeat protein QnrS2

Fluoroquinolone-resistant DNA topoisomerases

Phenicols

 

floR2

catB

floR

Chloramphenicol/florfenicol efflux MFS transporter FloR

Chloramphenicol_acetyltransferases

Phenicol_resistance_MFS_efflux_pumps

Macrolide

erm (MLS23s group)

ere(A)

mph(F)

erm(F)

ere(D)

mphE

MLS23S Group

EreA family erythromycin esterase

Mph(F) family macrolide 2'-phosphotransferase

23S rRNA (adenine(2058)-N(6))-methyltransferase Erm(F)

EreD family erythromycin esterase

Macrolide_phosphotransferases

Macrolide resistant 23SrRNA mutation

Sulfonamides

 

sul1

sul2

Sulfonamide-resistant dihydropteroate synthase Sul1

Sulfonamide-resistant dihydropteroate synthase Sul2

Trimethoprim

dfrA6

 

Trimethoprim-resistant dihydrofolate reductase DfrA6

Elfamycins

TUFAB group

TUFAB group

EF-Tu Inhibition

Metal resistance

 

merC, merT

merR1

Mercury_resistance_protein

Mercury_resistance_regulator

Biocide and Quaternary Ammonium Compounds

vmeZ

vmeD

qacE

QACEDELTA1

Multi-biocide RND efflux pump

Quaternary ammonium compound efflux SMR transporter QacE

Drug_and_biocide_SMR_efflux_pumps

Cationic antimicrobial peptides

CAP16S group

CAP16S group

Cationic peptide-resistant 16S ribosomal subunit protein