This paper characterizes several beta-lactamases, including TEM-1, SHV-1, CTX-M-15, and NDM-1, which confer resistance to various beta-lactam antibiotics. It also identifies erm(B) and mef(A) as mechanisms of macrolide, lincosamide, and streptogramin B resistance. Additionally, aadA1 and aac(6')-Ib are noted for aminoglycoside resistance, while catA1 and floR contribute to chloramphenicol resistance. The vanA gene is associated with glycopeptide resistance, and mcr-1 is linked to polymyxin resistance.

The study identifies novel erm(T)-carrying multiresistance plasmids from porcine and human isolates of methicillin-resistant Staphylococcus aureus ST398, which also harbor cadmium and copper resistance determinants.

The study identified several antimicrobial resistance genes in Bacillus spp. isolated from probiotic products used in shrimp culture, including ermD (macrolide resistance), tetL (tetracycline resistance), fexA (phenicol resistance), and dfrD, dfrG, dfrK (trimethoprim resistance). These genes were detected through whole genome sequencing of multiple antimicrobial-resistant Bacillus isolates.

The study identified multiple antimicrobial resistance genes in methicillin-resistant staphylococci isolated from pigs in Nigeria, including mecA, blaZ, erm(C), erm(B), str, tet(K), tet(M), tet(L), dfrG, dfrK, aacA/aphD, aphA3, cat pC221, and cat pC223. Additionally, a Ser84Leu mutation in the gyrA gene was found to confer ciprofloxacin resistance.

The study identifies dfrG and dfrK as novel plasmid-encoded trimethoprim resistance genes in MRSA and MSSA isolates from the United States, demonstrating their role in conferring high-level resistance to trimethoprim.

The paper discusses the role of bacteria from animals as a reservoir of antimicrobial resistance genes, highlighting the presence of various AMR genes such as erm(B), tet(M), cfr, and others in different bacterial species, emphasizing their contribution to the spread of resistance.

The paper discusses various antimicrobial resistance genes and mutations in staphylococci of animal origin, highlighting their roles in resistance to multiple antibiotics such as macrolides, lincosamides, streptogramins, oxazolidinones, and others. Key genes include erm, msr, mph, ere, lnu, vga, cfr, optrA, dfr, fus, ileS2, blaZ, aadD, ble, fosD, fosB, czrC, and qac genes, which confer resistance to specific antibiotics and are prevalent in different staphylococcal species.

The study identified multiple AMR genes in MRSA isolates from German broiler farms, including tet(K), tet(L), tet(M), erm(B), vga(A), dfrK, spc, and cat(pC221), which confer resistance to tetracycline, MLS B antibiotics, tiamulin, trimethoprim, spectinomycin, and chloramphenicol, respectively.

The study identifies dfrA, dfrG, and dfrK genes in clinical isolates of Methicillin Resistant Staphylococcus aureus (MRSA) that confer resistance to trimethoprim and iclaprim. These genes were characterized through biochemical, structural, and computational methods, leading to the development of novel inhibitors (INCAs) with improved activity against these resistant enzymes.

The study identified multiple AMR genes in vancomycin-resistant enterococci (VRE) isolated from processed meat, including vanA, vanC1, erm(B), aac(6')-Ii, aadE, ant(9)-Ia, lsa(E), msr(C), lnu(B), tet(M)+tet(L), dfrG, dfrK, adeC, and efmA, which confer resistance to various antibiotics such as vancomycin, erythromycin, tetracycline, aminoglycosides, and trimethoprim.

The study characterizes two S. aureus ST398 strains, one methicillin-resistant (MRSA) and one methicillin-susceptible (MSSA), isolated from a pig transporter. The MRSA strain harbors the mecA gene, while the MSSA strain lacks it due to a large deletion. Both strains exhibit resistance to several antibiotics including tetracycline, lincosamides, aminoglycosides, and trimethoprim.

The study identified several AMR genes in mink pathogens, including beta-lactamases (blaTEM-1, blaCTX-M-1), tetracycline resistance genes (tet(A), tet(B)), aminoglycoside resistance genes (aadA5, aadA1), sulfonamide resistance genes (sul2), dihydrofolate reductase genes (dfrA1, dfrA5, dfrA8, dfrA14), macrolide/lincosamide/streptogramin B resistance genes (erm), lincomycin resistance gene (lnu(A)), spectinomycin resistance gene (spc), and additional sulfonamide and trimethoprim resistance genes (sul1, sul3, dfrK, dfrG).

The study identified various antimicrobial resistance genes in livestock-associated MRSA from German dairy farms, including mecA, fexA, tet(K), tet(M), vga(A), vga(E), dfrG, dfrK, aac(6')Ie-aph(2")Ia, str, spc, lsa(E), and erm(A). These genes conferred resistance to beta-lactams, chloramphenicol, tetracyclines, pleuromutilins, trimethoprim, aminoglycosides, streptomycin, spectinomycin, macrolides, lincosamides, and streptogramin B.

The study identified dfrA, dfrG, dfrD, and dfrK genes as conferring trimethoprim resistance in Staphylococcus aureus, and mutations in the folP gene (F17L and KE257_Dup) as responsible for sulfamethoxazole resistance.

The study presents a cross-resistance platform (CRP) consisting of 28 Staphylococcus aureus strains with defined resistance genotypes, designed to detect cross-resistance between established and novel antibacterial agents. The CRP includes various AMR genes and mutations that confer resistance to multiple antibiotic classes.

The paper discusses the mechanisms of antibiotic resistance in methicillin-resistant Staphylococcus aureus (MRSA), focusing on genes such as blaZ, mecA, and dltA, which are involved in beta-lactam and glycopeptide resistance. It highlights the importance of understanding these resistance mechanisms to develop new therapeutic strategies.

The study identified multiple multidrug-resistant methicillin-resistant coagulase-negative staphylococci (MRCoNS) in poultry, carrying genes such as mecA, ermA, ermB, ermC, mphC, aph(3')-IIIa, ant(4')-Ia, str, tetK, tetL, tetM, tetO, cfr, dfrK, dfrD, and cat p194, which confer resistance to various antibiotics.

The study identified several AMR genes in staphylococci from livestock and farm attendants in Northern Ghana, including mecA1, mecA, tet(K), tet(L), tet(M), cat(pC221), sal(A), aadD, dfrK, dfrG, erm(B), fosB, aac(6')-aph(2''), and blaZ, which confer resistance to various antibiotics such as beta-lactams, tetracyclines, chloramphenicol, aminoglycosides, and macrolides.

The study identified multiple antimicrobial resistance (AMR) genes in Staphylococcus aureus isolates from ready-to-eat food in Russia, including blaZ, mecA, inuA, cat, ermC, dfrG, dfrK, aaC, aaD, ant(9)-Ia, tet(K), tet(cluster), erm(A), erm(C), cat(pC194), and fexA. These genes conferred resistance to various antibiotics such as penicillins, lincosamides, phenicols, macrolides, aminoglycosides, tetracyclines, and fluoroquinolones.

The study describes an in-house 45-plex array for detecting antimicrobial resistance genes in Gram-positive bacteria, identifying optrA, poxtA, and vanA as significant resistance markers in Enterococcus and Staphylococcus isolates.

The study identified multiple antimicrobial resistance genes in methicillin-resistant Staphylococcus aureus (MRSA) isolated from retail poultry meat in Edo, Nigeria, highlighting the prevalence of multidrug-resistant MRSA and the presence of virulence factors that pose a public health concern.

The study identifies various AMR genes including blaZ, dfrA, dfrG, ermB, catA, aac6′-aph2″, tet(M), dfrK, and ant4′ in Staphylococcus aureus and Staphylococcus pseudintermedius isolates. Additionally, a mutation in grlA (S80F) was found to confer fluoroquinolone resistance.

The study identified numerous antimicrobial resistance (AMR) genes in methicillin-resistant Staphylococcus aureus (MRSA) CC398 isolates from diseased swine in Germany, including beta-lactam, tetracycline, macrolide, lincosamide, streptogramin B, phenicol, aminoglycoside, and fluoroquinolone resistance genes. These genes were often located on small transposons or plasmids, contributing to the multidrug resistance profile of the isolates.

The paper reviews the prevalence, classification, and drug resistance mechanisms of methicillin-resistant Staphylococcus aureus (MRSA), focusing on the roles of mecA, mecC, and vanA genes in conferring resistance to beta-lactam and glycopeptide antibiotics.

The study identified 25 different antimicrobial resistance genes in multidrug-resistant Gallibacterium anatis biovar haemolytica strains from Polish geese and hens, including tetB, blaTEM-1, blaROB-1, floR, sul2, sul3, dfrK, aadA1, aadA2, aph(3)-la, aph(3)-lb, aph(6)-ld, sat2, dfrA14, dfrA32, merC, merP, merR, merT, qacL, and cmlA1.

The study identified multiple AMR genes and mutations in Staphylococcus aureus isolates from bovine mastitis in Thuringia, Germany, including blaZ, blaI, blaR, blaPC, mecA, tetM, tetK, ermA, dfrG, dfrK, ant(6)-Ia, aac(6')-Ie-aph(2"), aadD1, ant(9)-Ia, ant(4')-Ia, aph(2")-Ih, gyrA_S84L, and parC_S80F/Y.

The review highlights the role of PBP2a, encoded by the mecA gene, in conferring resistance to β-lactam antibiotics in MRSA. It also discusses the importance of β-lactamase enzymes, such as those encoded by blaZ, in degrading β-lactam antibiotics.

The study identified various AMR genes in Staphylococcaceae strains isolated from dogs in a Kenyan animal shelter, including tetracycline, beta-lactam, and aminoglycoside resistance genes.

The study identified several AMR genes in staphylococci isolated from the skin of captive-bred reptiles, including blaZ, dfrK, dfrA(S1), tetK, msrA, mecA, and mecC. These genes conferred resistance to various antibiotics such as ampicillin, cefoxitin, trimethoprim, tetracycline, erythromycin, and cephalosporins. The study highlights the prevalence of multidrug resistance among these isolates.

The study identified multiple AMR genes including aac(6')-Ie/aph(2'')-Ia, tetM, dfrK, ermC, and dfrC in MRSA isolates from horses, staff, and the environment. Additionally, mutations in folP, gyrA, and rpoB were found to confer resistance to sulfonamides, fluoroquinolones, and rifampicin respectively.

The study identifies multiple AMR genes and mutations in CoNS isolates from various hosts, highlighting the spread of multidrug resistance and the role of mobile genetic elements in the dissemination of resistance traits.