Elaiomycin

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Elaiomycin


Elaiomycin is a natural product that belongs to the class of polyketides. It is a secondary metabolite produced by certain bacteria, specifically Streptomyces species. Elaiomycin is known for its potent antibacterial activity, particularly against Gram-positive bacteria.

Structure and Biosynthesis

Elaiomycin has a complex molecular structure that includes a 16-membered macrocyclic lactone ring and a sugar moiety. The biosynthesis of elaiomycin involves a series of enzymatic reactions catalyzed by a polyketide synthase (PKS) complex. The PKS complex is a multi-enzyme system that assembles the polyketide backbone of elaiomycin from simple carboxylic acid building blocks.

Biological Activity

Elaiomycin exhibits strong antibacterial activity, especially against Gram-positive bacteria. It works by inhibiting the protein synthesis of the bacteria, thereby preventing their growth and proliferation. Elaiomycin is also known to have antifungal and antitumor activities.

Clinical Use

Due to its potent antibacterial activity, elaiomycin has potential for use in the treatment of various bacterial infections. However, its clinical use is currently limited due to its high toxicity and poor bioavailability. Research is ongoing to develop elaiomycin derivatives with improved pharmacological properties.

See Also

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Types of antibacterials
Antibacterials that inhibit protein synthesis (J01A, J01B, J01F, J01G, QJ01XQ)
30S
50S
Oxazolidinone (initiation inhibitors)
Peptidyl transferase
MLS (transpeptidation/translocation)
Antibacterials active on the cell wall and envelope (J01C-J01D)
β-lactams
(inhibit synthesis
of peptidoglycan
layer of bacterial
cell wall by binding
to and inhibiting
PBPs, a group of
D-alanyl-D-alanine
transpeptidases)
Penicillins (Penams)
Narrow
spectrum
Extended
spectrum
Carbapenems / Penems
Cephems
Cephalosporins
Cephamycins
Carbacephems
1st generation
2nd generation
3rd generation
4th generation
5th generation
Monobactams
β-lactamase inhibitors
Polypeptides
Lipopeptides
- Insert into bacterial cell wall causing perforation and depolarization: Daptomycin - Surfactin
Other
- Inhibits PG elongation and crosslinking: Ramoplanin§
Intracellular
- Inhibit PG subunit synthesis and transport: NAM synthesis inhibition (Fosfomycin)

- DADAL/AR inhibitors (Cycloserine)

- bactoprenol inhibitors (Bacitracin)
Other
- Hydrolyze NAM-NAG

- - lysozyme - Tyrothricin - - Gramicidin - - Tyrocidine - Isoniazid#

- Teixobactin


Antibacterials that inhibit nucleic acid (J01E, J01M)
Antifolates
(inhibit bacterial
purine metabolism,
inhibiting DNA/RNA synthesis)

DHFR inhibitors - 2,4-Diaminopyrimidine (Brodimoprim - Iclaprim - Ormetoprim - Pyrimethamine - Tetroxoprim - Trimethoprim)
Sulfonamides (DHPS inhibitors)
Short-acting - Sulfisomidine - Sulfamethizole - Sulfadimidine (Sulfamethazine - Sulfadimerazine - Sulfadimezine) - Sulfapyridine (Sulfasalazine) - Sulfafurazole (Acetyl sulfisoxazole) - Sulfanilamide (Prontosil) - Sulfathiazole (Phthalylsulfathiazole - Succinylsulfathiazole) - Sulfathiourea

Intermediate-acting - Sulfamethoxazole - Sulfadiazine - Sulfamoxole

Long-acting - Sulfadimethoxine - Sulfadoxine - Sulfalene - Sulfametomidine - Sulfametoxydiazine - Sulfamethoxypyridazine - Sulfaperin - Sulfamerazine - Sulfaphenazole - Sulfamazone

Other/ungrouped - Mafenide - Sulfacetamide - Sulfaclozine - Sulfadicramide - Sulfaguanidine - Sulfametrole - Sulfanitran

Combinations - Trimethoprim/sulfamethoxazole - Ormetoprim/sulfadimethoxine - Pyrimethamine/dapsone - Pyrimethamine/sulfadoxine

Other DHPS inhibitors - Acediasulfone - Dapsone - Solasulfone - Sulfoxone

Quinolones
(inhibit topoisomerase/DNA gyrase)

1st Generation - Cinoxacin - Flumequine - Nalidixic acid - Oxolinic acid - Pipemidic acid - Piromidic acid - Rosoxacin

Fluoroquinolones
2nd Gen - Ciprofloxacin - Ofloxacin - Enoxacin - Fleroxacin - Lomefloxacin - Nadifloxacin - Levonadifloxacin - Alalevonadifloxacin - Norfloxacin - Pefloxacin - Rufloxacin

3rd Gen - Levofloxacin - Balofloxacin - Grepafloxacin - Pazufloxacin - Sparfloxacin - Temafloxacin - Tosufloxacin

4th Gen - Besifloxacin - Delafloxacin - Gatifloxacin - Finafloxacin - Gemifloxacin - Moxifloxacin - Clinafloxacin - Garenoxacin - Prulifloxacin - Sitafloxacin - Trovafloxacin - Alatrofloxacin

Veterinary use - Danofloxacin - Difloxacin - Enrofloxacin - Ibafloxacin - Marbofloxacin - Orbifloxacin - Pradofloxacin - Sarafloxacin

Newer non-fluorinated - Nemonoxacin - Ozenoxacin Related (DNA gyrase) - Aminocoumarins (Novobiocin)

Anaerobic DNA inhibitors

Nitroimidazole derivatives - Secnidazole

RNA synthesis inhibitors

Rifamycins - Rifampicin - Rifabutin - Rifapentine - Rifaximin - Rifalazil
Lipiarmycins - Fidaxomicin


Antibacterials: others (J01X, D06AX)
Other/ungrouped 




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Contributors: Prab R. Tumpati, MD