| Gene name | Length | Location | Length of alignment | Identity (%) | Coverage (%) | E-value |
|---|---|---|---|---|---|---|
| repA | 1101 | 131121 - 132221 (-) | 1101 | 100 | 100 | 0 |
| ORF1847 | 5544 | 67276 - 72819 (-) | 5544 | 100 | 100 | 0 |
| I1 | 428 | 110966 - 111393 (-) | 428 | 100 | 100 | 0 |
| I2 | 462 | 90432 - 90893 (-) | 462 | 100 | 100 | 0 |
| RHS2 | 3990 | 22500 - 26489 (-) | 3990 | 100 | 94 | 0 |
| RHS2 | 220 | 154663 - 154881 (-) | 220 | 100 | 5 | 4.43497E-112 |
| Type match | Model name | Model type | Location | E-value | Identity | ||||
|---|---|---|---|---|---|---|---|---|---|
| Perfect | mphA | protein homolog model | 909 - 1814(+) | 0 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
AMR Gene Family
Macrolide phosphotransferases (MPH) are enzymes encoded by macrolide phosphotransferase genes (mph genes). These enzymes phosphorylate macrolides in GTP dependent manner at 2'-OH of desosamine sugar thereby inactivating them. Characterized MPH's are differentiated based on their substrate specificity.
Antibiotic
Erythromycin is a macrolide antibiotic with a 14-carbon ring that has an antimicrobial spectrum similar to or slightly wider than that of penicillin, and is often used for people that have an allergy to penicillins. Erythromycin may possess bacteriocidal activity, particularly at higher concentrations by binding to the 50S subunit of the bacterial 70S rRNA complex, inhibiting peptidyl-tRNA translocation. Thus, protein synthesis and subsequently structure/function processes critical for life or replication are inhibited.
Antibiotic
Roxithromycin is a semi-synthetic, 14-carbon ring macrolide antibiotic derived from erythromycin. It is used to treat respiratory tract, urinary and soft tissue infections. Roxithromycin may possess bacteriocidal activity, particularly at higher concentrations by binding to the 50S subunit of the bacterial 70S rRNA complex, protein synthesis and subsequently structure/function processes critical for life or replication are inhibited.
Antibiotic
Telithromycin is a semi-synthetic derivative of erythromycin. It is a 14-membered macrolide and is the first ketolide antibiotic to be used in clinics. Telithromycin binds the 50S subunit of the bacterial ribosome to inhibit protein synthesis.
Antibiotic
Clarithromycin is a methyl derivative of erythromycin, sharing the 14-carbon macrolide ring. The antibiotic binds to the 50S subunit of the ribosome and is used to treat pharyngitis, tonsillitis, acute maxillary sinusitis, acute bacterial exacerbation of chronic bronchitis, pneumonia (especially atypical pneumonias associated with Chlamydia pneumoniae or TWAR), and skin structure infections.
Antibiotic
Azithromycin is a 15-membered macrolide and falls under the subclass of azalide. Like other macrolides, azithromycin binds bacterial ribosomes to inhibit protein synthesis. The nitrogen substitution at the C-9a position prevents its degradation.
Antibiotic
Dirithromycin is an oxazine derivative of erythromycin, sharing the 14-carbon macrolide ring. The antibiotic binds to the 50S subunit of the ribosome to inhibit bacterial protein synthesis.
Antibiotic
Oleandomycin is a 14-membered macrolide produced by Streptomyces antibioticus. It is ssimilar to erythromycin, and contains a desosamine amino sugar and an oleandrose sugar. It targets the 50S ribosomal subunit to prevent protein synthesis.
Drug Class
Macrolides are a group of drugs (typically antibiotics) that have a large macrocyclic lactone ring of 12-16 carbons to which one or more deoxy sugars, usually cladinose and desosamine, may be attached. Macrolides bind to the 50S-subunit of bacterial ribosomes, inhibiting the synthesis of vital proteins.
|
|||||||||
| Strict | FONA-6 | protein homolog model | 16419 - 17306(+) | 0 | 96.27 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
Drug Class
Penams, often referred to as penicillins, are a group of antibiotics derived from Penicillium fungi. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious diseases such as syphilis and Staphylococcus infections. Penicillins are still widely used today, though many types of bacteria are now resistant. All penicillins are beta-lactam antibiotics in the penam sub-group, and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms.
AMR Gene Family
FONA is a class A beta-lactamase gene family found in Serratia fonticola.
|
|||||||||
| Perfect | TEM-1 | protein homolog model | 157125 - 157985(-) | 0 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
Drug Class
Cephalosporins are a class of beta-lactam antibiotics, containing the beta-lactam ring fused with a dihydrothiazolidine ring. Together with cephamycins they belong to a sub-group called cephems. Cephalosporin are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. The peptidoglycan layer is important for cell wall structural integrity, especially in Gram-positive organisms.
Drug Class
Penams, often referred to as penicillins, are a group of antibiotics derived from Penicillium fungi. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious diseases such as syphilis and Staphylococcus infections. Penicillins are still widely used today, though many types of bacteria are now resistant. All penicillins are beta-lactam antibiotics in the penam sub-group, and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms.
AMR Gene Family
TEM-1 is the most commonly-encountered beta-lactamase in gram-negative bacteria. Up to 90% of ampicillin resistance in E. coli is due to the production of TEM-1. Also responsible for the ampicillin and penicillin resistance that is seen in H. influenzae and N. gonorrhoeae in increasing numbers. Although TEM-type beta-lactamases are most often found in E. coli and K. pneumoniae, they are also found in other species of gram-negative bacteria with increasing frequency. The amino acid substitutions responsible for the ESBL phenotype cluster around the active site of the enzyme and change its configuration, allowing access to oxyimino-beta-lactam substrates. Opening the active site to beta-lactam substrates also typically enhances the susceptibility of the enzyme to b-lactamase inhibitors, such as clavulanic acid. Although the inhibitor-resistant beta-lactamases are not ESBLs, they are often discussed with ESBLs because they are also derivatives of the classical TEM- or SHV-type enzymes. These enzymes were at first given the designation IRT for inhibitor-resistant TEM beta-lactamase; however, all have subsequently been renamed with numerical TEM designations. There are at least 19 distinct inhibitor-resistant TEM beta-lactamases. Inhibitor-resistant TEM beta-lactamases have been found mainly in clinical isolates of E. coli, but also some strains of K. pneumoniae, Klebsiella oxytoca, P. mirabilis, and Citrobacter freundii. Although the inhibitor-resistant TEM variants are resistant to inhibition by clavulanic acid and sulbactam, thereby showing clinical resistance to the beta-lactam-lactamase inhibitor combinations of amoxicillin-clavulanate (Co-amoxiclav), ticarcillin-clavulanate, and ampicillin/sulbactam, they normally remain susceptible to inhibition by tazobactam and subsequently the combination of piperacillin/tazobactam, although resistance has been described.
Antibiotic
Amoxicillin is a moderate-spectrum, bacteriolytic, beta-lactam antibiotic used to treat bacterial infections caused by susceptible microorganisms. A derivative of penicillin, it has a wider range of treatment but remains relatively ineffective against Gram-negative bacteria. It is commonly taken with clavulanic acid, a beta-lactamase inhibitor. Like other beta-lactams, amoxicillin interferes with the synthesis of peptidoglycan.
Antibiotic
Ampicillin is a penicillin derivative that is highly acid stable, with its activity similar to benzylpenicillin.
Antibiotic
Cefalotin is a semisynthetic cephalosporin antibiotic activate against staphylococci. It is resistant to staphylococci beta-lactamases but hydrolyzed by enterobacterial beta-lactamases.
Drug Class
Monobactams are a class of beta-lactam antibiotics with a broad spectrum of antibacterial activity, and have a structure which renders them highly resistant to beta-lactamases. Unlike penams and cephems, monobactams do not have any ring fused to its four-member lactam structure. Monobactam antibiotics are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. The peptidoglycan layer is important for cell wall structural integrity, especially in Gram-positive organisms.
Drug Class
Penems are a class of unsaturated beta-lactam antibiotics with a broad spectrum of antibacterial activity and have a structure which renders them highly resistant to beta-lactamases. All penems are all synthetically made and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. They are structurally similar to carbapenems, however, where carbapenems have a carbon, penems have a sulfur.
|
|||||||||
| Perfect | AAC(3)-IId | protein homolog model | 170096 - 170956(-) | 0 | 100 % | ||||
|
AMR Gene Family
Acetylation of the aminoglycoside antibiotic on the amino group at position 3.
Drug Class
Aminoglycosides are a group of antibiotics that are mostly effective against Gram-negative bacteria. These molecules consist of aminated sugars attached to a dibasic cyclitol. Aminoglycosides work by binding to the bacterial 30S ribosomal subunit (some work by binding to the 50S subunit), inhibiting the translocation of the peptidyl-tRNA from the A-site to the P-site and also causing misreading of mRNA, leaving the bacterium unable to synthesize proteins vital to its growth.
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
|
|||||||||
| Perfect | arr-3 | protein homolog model | 173358 - 173810(+) | 2.33764e-112 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
AMR Gene Family
Enzyme responsible for the ADP-ribosylative inactivation of rifampin at the 23-OH position using NAD+.
Antibiotic
Rifampin is a semi-synthetic rifamycin, and inhibits RNA synthesis by binding to RNA polymerase. Rifampin is the mainstay agent for the treatment of tuberculosis, leprosy and complicated Gram-positive infections.
Antibiotic
Rifaximin is a semi-synthetic rifamycin used to treat traveller's diarrhea. Rifaximin inhibits RNA synthesis by binding to the beta subunit of bacterial RNA polymerase.
Antibiotic
Rifabutin is a semisynthetic rifamycin used in tuberculosis therapy. It inhibits DNA-dependent RNA synthesis.
Antibiotic
Rifapentine is a semisynthetic rifamycin that inhibits DNA-dependent RNA synthesis. It is often used in the treatment of tuberculosis and leprosy.
Drug Class
Rifamycin antibiotics are a group of broad-spectrum ansamycin antibiotics that inhibit bacterial RNA polymerase by binding to a highly conserved region, blocking the oligonucleotide exit tunnel, and preventing the extension of nascent mRNAs.
|
|||||||||
| Strict | aadA16 | protein homolog model | 174598 - 175443(+) | 0 | 98.93 % | ||||
|
Drug Class
Aminoglycosides are a group of antibiotics that are mostly effective against Gram-negative bacteria. These molecules consist of aminated sugars attached to a dibasic cyclitol. Aminoglycosides work by binding to the bacterial 30S ribosomal subunit (some work by binding to the 50S subunit), inhibiting the translocation of the peptidyl-tRNA from the A-site to the P-site and also causing misreading of mRNA, leaving the bacterium unable to synthesize proteins vital to its growth.
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
Antibiotic
Streptomycin is an aminoglycoside antibiotic used to treat different types of bacterial infections. Streptomycin works by binding to the bacterial 30S ribosomal subunit, causing misreading of mRNA and leaving the bacterium unable to synthesize proteins vital to its growth.
AMR Gene Family
Nucleotidylylation of streptomycin at the hydroxyl group at position 3''
Antibiotic
Spectinomycin is an aminoglycoside antibiotic used to treat different types of bacterial infections. Spectinomycin works by binding to the bacterial 30S ribosomal subunit inhibiting translation.
|
|||||||||
| Perfect | sul1 | protein homolog model | 175901 - 176740(+) | 0 | 100 % | ||||
|
AMR Gene Family
The sul genes encode forms of dihydropteroate synthase that confer resistance to sulfonamide.
Antibiotic
Sulfadiazine is a potent inhibitor of dihydropteroate synthase, interfering with the tetrahydrofolic biosynthesis pathway. Tetrahydrofolic acid is essential for folate synthesis, a precursor to many nucleotides and amino acids.
Antibiotic
Sulfadimidine is an alkaline sulfonamide antibiotic that inhibits dihydropteroate synthase, and enzyme in the tetrahydrofolic acid biosynthesis pathway. This interferes with the production of folate, which is a precursor to many amino acids and nucleotides.
Antibiotic
Sulfadoxine is an inhibitor of dihydropteroate synthase, interfering with the tetrahydrofolic biosynthesis pathway. Tetrahydrofolic acid is essential for folate synthesis, a precursor to many nucleotides and amino acids.
Antibiotic
Sulfamethoxazole is a sulfonamide antibiotic usually taken with trimethoprim, a diaminopyrimidine antibiotic. Sulfamethoxazole inhibits dihydropteroate synthase, essential to tetrahydrofolic acid biosynthesis. This pathway generates compounds used in the synthesis of many amino acids and nucleotides.
Antibiotic
Sulfisoxazole is an inhibitor of dihydropteroate synthase, interfering with the tetrahydrofolic biosynthesis pathway. Tetrahydrofolic acid is essential for folate synthesis, a precursor to many nucleotides and amino acids.
Antibiotic
Sulfacetamide is a very soluable sulfonamide antibiotic previously used to treat urinary tract infections. Its relatively low activity and toxicity to those with Stevens-Johnson syndrome have reduced its use and availability.
Antibiotic
Mafenide is a sulfonamide used topically for treating burns.
Antibiotic
Sulfasalazine is a derivative of the early sulfonamide sulfapyridine (salicylazosulfapyridine). It was developed to increase water solubility and is taken orally for ulcerative colitis.
Antibiotic
Sulfamethizole is a short-acting sulfonamide that inhibits dihydropteroate synthetase.
Drug Class
Sulfonamides are broad spectrum, synthetic antibiotics that contain the sulfonamide group. Sulfonamides inhibit dihydropteroate synthase, which catalyzes the conversion of p-aminobenzoic acid to dihydropteroic acid as part of the tetrahydrofolic acid biosynthetic pathway. Tetrahydrofolic acid is essential for folate synthesis, a precursor of many nucleotides and amino acids. Many sulfamides are taken with trimethoprim, an inhibitor of dihydrofolate reductase, also disturbing the trihydrofolic acid synthesis pathway.
Resistance Mechanism
Replacement or substitution of antibiotic action target, which process will result in antibiotic resistance.
|
|||||||||
| Perfect | NDM-1 | protein homolog model | 180777 - 181589(-) | 0 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
Drug Class
Cephalosporins are a class of beta-lactam antibiotics, containing the beta-lactam ring fused with a dihydrothiazolidine ring. Together with cephamycins they belong to a sub-group called cephems. Cephalosporin are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. The peptidoglycan layer is important for cell wall structural integrity, especially in Gram-positive organisms.
Drug Class
Penams, often referred to as penicillins, are a group of antibiotics derived from Penicillium fungi. Penicillin antibiotics are historically significant because they are the first drugs that were effective against many previously serious diseases such as syphilis and Staphylococcus infections. Penicillins are still widely used today, though many types of bacteria are now resistant. All penicillins are beta-lactam antibiotics in the penam sub-group, and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms.
Antibiotic
Amoxicillin is a moderate-spectrum, bacteriolytic, beta-lactam antibiotic used to treat bacterial infections caused by susceptible microorganisms. A derivative of penicillin, it has a wider range of treatment but remains relatively ineffective against Gram-negative bacteria. It is commonly taken with clavulanic acid, a beta-lactamase inhibitor. Like other beta-lactams, amoxicillin interferes with the synthesis of peptidoglycan.
Drug Class
Carbapenems are a class of beta-lactam antibiotics with a broad spectrum of antibacterial activity, and have a structure which renders them highly resistant to beta-lactamases. Carbapenem antibiotics are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. The peptidoglycan layer is important for cell wall structural integrity, especially in Gram-positive organisms.
Drug Class
Cephamycins are a group of beta-lactam antibiotics, very similar to cephalosporins. Together with cephalosporins, they form a sub-group of antibiotics known as cephems. Cephamycins are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. The peptidoglycan layer is important for cell wall structural integrity, especially in Gram-positive organisms. The 7-alpha-methoxy group increases resistance to beta-lactamases.
Adjuvant
Clavulanic acid is a beta-lactamase inhibitor (marketed by GlaxoSmithKline, formerly Beecham) combined with penicillin group antibiotics to overcome certain types of antibiotic resistance. It is used to overcome resistance in bacteria that secrete beta-lactamase, which otherwise inactivates most penicillins.
AMR Gene Family
NDM beta-lactamases or New Delhi metallo-beta-lactamases are class B beta-lactamases that confer resistance to a broad range of antibiotics including carbapenems, cephalosporins and penicillins.
Antibiotic
Ertapenem is a carbapenem antibiotic and is highly resistant to beta-lactamases like other carbapenems. It inhibits bacterial cell wall synthesis.
Antibiotic
Meropenem is an ultra-broad spectrum injectable antibiotic used to treat a wide variety of infections, including meningitis and pneumonia. It is a beta-lactam and belongs to the subgroup of carbapenem, similar to imipenem and ertapenem.
Antibiotic
Imipenem is a broad-spectrum antibiotic and is usually taken with cilastatin, which prevents hydrolysis of imipenem by renal dehydropeptidase-I. It is resistant to hydrolysis by most other beta-lactamases. Notable exceptions are the KPC beta-lactamases and Ambler Class B enzymes.
Antibiotic
An antibiotic cocktail containing the beta-lactam antibiotic Amoxicillin and the beta-lactamase inhibitor Clavulanic Acid (potassium clavulanate).
|
|||||||||
| Perfect | msrE | protein homolog model | 185373 - 186848(+) | 0 | 100 % | ||||
|
Drug Class
Phenicols are broad spectrum bacteriostatic antibiotics acting on bacterial protein synthesis. More specifically, the phenicols block peptide elongation by binding to the peptidyltansferase centre of the 70S ribosome.
Resistance Mechanism
Protection of antibiotic action target from antibiotic binding, which process will result in antibiotic resistance.
Antibiotic
Erythromycin is a macrolide antibiotic with a 14-carbon ring that has an antimicrobial spectrum similar to or slightly wider than that of penicillin, and is often used for people that have an allergy to penicillins. Erythromycin may possess bacteriocidal activity, particularly at higher concentrations by binding to the 50S subunit of the bacterial 70S rRNA complex, inhibiting peptidyl-tRNA translocation. Thus, protein synthesis and subsequently structure/function processes critical for life or replication are inhibited.
Drug Class
Macrolides are a group of drugs (typically antibiotics) that have a large macrocyclic lactone ring of 12-16 carbons to which one or more deoxy sugars, usually cladinose and desosamine, may be attached. Macrolides bind to the 50S-subunit of bacterial ribosomes, inhibiting the synthesis of vital proteins.
Drug Class
These antibiotics are derived from tetracycline, a polyketide antibiotic that inhibits the 30S subunit of bacterial ribosomes.
Drug Class
Lincosamides (e.g. lincomycin, clindamycin) are a class of drugs which bind to the 23s portion of the 50S subunit of bacterial ribosomes. This interaction inhibits early elongation of peptide chains by inhibiting the transpeptidase reaction, acting similarly to macrolides.
Drug Class
Streptogramin antibiotics are natural products produced by various members of the Streptomyces genus. These antibiotics bind to the P site of the 50S subunit of bacterial ribosomes to inhibit protein synthesis. The family consists of two subgroups, type A and type B, which are simultaneously produced by the same bacterial species in a ratio of roughly 70:30.
AMR Gene Family
A subfamily of the ATP-binding cassette protein superfamily. Unlike other ABC proteins, ABC-F genes are not fused to a transmembrane domain nor associated with transport. It has been shown that ABC-F proteins confer antibiotic resistance via ribosomal protection and not antibiotic efflux as in other ABC proteins.
Drug Class
Oxazolidinones are a class of synthetic antibiotics discovered the the 1980's. They inhibit protein synthesis by binding to domain V of the 23S rRNA of the 50S subunit of bacterial ribosomes. Linezolid is the only member of this class currently in clinical use.
Drug Class
Pleuromutilins are natural fungal products that target bacterial protein translation by binding the the 23S rRNA, blocking the ribosome P site at the 50S subunit. They are mostly used for agriculture and veterinary purposes.
|
|||||||||
| Perfect | mphE | protein homolog model | 186904 - 187788(+) | 0 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
AMR Gene Family
Macrolide phosphotransferases (MPH) are enzymes encoded by macrolide phosphotransferase genes (mph genes). These enzymes phosphorylate macrolides in GTP dependent manner at 2'-OH of desosamine sugar thereby inactivating them. Characterized MPH's are differentiated based on their substrate specificity.
Drug Class
Macrolides are a group of drugs (typically antibiotics) that have a large macrocyclic lactone ring of 12-16 carbons to which one or more deoxy sugars, usually cladinose and desosamine, may be attached. Macrolides bind to the 50S-subunit of bacterial ribosomes, inhibiting the synthesis of vital proteins.
|
|||||||||
| Perfect | mphA | protein homolog model | 199686 - 200591(+) | 0 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
AMR Gene Family
Macrolide phosphotransferases (MPH) are enzymes encoded by macrolide phosphotransferase genes (mph genes). These enzymes phosphorylate macrolides in GTP dependent manner at 2'-OH of desosamine sugar thereby inactivating them. Characterized MPH's are differentiated based on their substrate specificity.
Antibiotic
Erythromycin is a macrolide antibiotic with a 14-carbon ring that has an antimicrobial spectrum similar to or slightly wider than that of penicillin, and is often used for people that have an allergy to penicillins. Erythromycin may possess bacteriocidal activity, particularly at higher concentrations by binding to the 50S subunit of the bacterial 70S rRNA complex, inhibiting peptidyl-tRNA translocation. Thus, protein synthesis and subsequently structure/function processes critical for life or replication are inhibited.
Antibiotic
Roxithromycin is a semi-synthetic, 14-carbon ring macrolide antibiotic derived from erythromycin. It is used to treat respiratory tract, urinary and soft tissue infections. Roxithromycin may possess bacteriocidal activity, particularly at higher concentrations by binding to the 50S subunit of the bacterial 70S rRNA complex, protein synthesis and subsequently structure/function processes critical for life or replication are inhibited.
Antibiotic
Telithromycin is a semi-synthetic derivative of erythromycin. It is a 14-membered macrolide and is the first ketolide antibiotic to be used in clinics. Telithromycin binds the 50S subunit of the bacterial ribosome to inhibit protein synthesis.
Antibiotic
Clarithromycin is a methyl derivative of erythromycin, sharing the 14-carbon macrolide ring. The antibiotic binds to the 50S subunit of the ribosome and is used to treat pharyngitis, tonsillitis, acute maxillary sinusitis, acute bacterial exacerbation of chronic bronchitis, pneumonia (especially atypical pneumonias associated with Chlamydia pneumoniae or TWAR), and skin structure infections.
Antibiotic
Azithromycin is a 15-membered macrolide and falls under the subclass of azalide. Like other macrolides, azithromycin binds bacterial ribosomes to inhibit protein synthesis. The nitrogen substitution at the C-9a position prevents its degradation.
Antibiotic
Dirithromycin is an oxazine derivative of erythromycin, sharing the 14-carbon macrolide ring. The antibiotic binds to the 50S subunit of the ribosome to inhibit bacterial protein synthesis.
Antibiotic
Oleandomycin is a 14-membered macrolide produced by Streptomyces antibioticus. It is ssimilar to erythromycin, and contains a desosamine amino sugar and an oleandrose sugar. It targets the 50S ribosomal subunit to prevent protein synthesis.
Drug Class
Macrolides are a group of drugs (typically antibiotics) that have a large macrocyclic lactone ring of 12-16 carbons to which one or more deoxy sugars, usually cladinose and desosamine, may be attached. Macrolides bind to the 50S-subunit of bacterial ribosomes, inhibiting the synthesis of vital proteins.
|
|||||||||
| Perfect | CTX-M-27 | protein homolog model | 267923 - 268798(-) | 0 | 100 % | ||||
|
Resistance Mechanism
Enzymatic inactivation of antibiotic to confer drug resistance.
Drug Class
Cephalosporins are a class of beta-lactam antibiotics, containing the beta-lactam ring fused with a dihydrothiazolidine ring. Together with cephamycins they belong to a sub-group called cephems. Cephalosporin are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. The peptidoglycan layer is important for cell wall structural integrity, especially in Gram-positive organisms.
AMR Gene Family
These enzymes were named for their greater activity against cefotaxime than other oxyimino-beta-lactam substrates (eg, ceftazidime, ceftriaxone, or cefepime). Rather than arising by mutation, they represent examples of plasmid acquisition of beta-lactamase genes normally found on the chromosome of Kluyvera species, a group of rarely pathogenic commensal organisms. These enzymes are not very closely related to TEM or SHV beta-lactamases in that they show only approximately 40% identity with these two commonly isolated beta-lactamases. Despite their name, a few are more active on ceftazidime than cefotaxime. CTX-M-15 was recently found in bacterial strains expressing NDM-1 and were responsible for resistance to aztreonam.
Antibiotic
Cefalotin is a semisynthetic cephalosporin antibiotic activate against staphylococci. It is resistant to staphylococci beta-lactamases but hydrolyzed by enterobacterial beta-lactamases.
Antibiotic
Ceftazidime is a third-generation cephalosporin antibiotic. Like other third-generation cephalosporins, it has broad spectrum activity against Gram-positive and Gram-negative bacteria. Unlike most third-generation agents, it is active against Pseudomonas aeruginosa, however it has weaker activity against Gram-positive microorganisms and is not used for such infections.
|
|||||||||