Tracking the relevant researches of CADD drug development against COVID-19


5904  334.424
RB NOA Rings logP


DrugBank ID:



Benzylpenicillin (Penicillin G) is narrow spectrum antibiotic used to treat infections caused by susceptible bacteria. It is a natural penicillin antibiotic that is administered intravenously or intramuscularly due to poor oral absorption. Penicillin G may also be used in some cases as prophylaxis against susceptible organisms.Natural penicillins are considered the drugs of choice for several infections caused by susceptible gram positive aerobic organisms, such asStreptococcus pneumoniae, groups A, B, C and G streptococci, nonenterococcal group D streptococci, viridans group streptococci, and non-penicillinase producing staphylococcus. Aminoglycosides may be added for synergy against group B streptococcus (S. agalactiae),S. viridans, andEnterococcus faecalis. The natural penicillins may also be used as first or second line agents against susceptible gram positive aerobic bacilli such asBacillus anthracis,Corynebacterium diphtheriae, andErysipelothrix rhusiopathiae. Natural penicillins have limited activity against gram negative organisms; however, they may be used in some cases to treat infections caused byNeisseria meningitidisandPasteurella. They are not generally used to treat anaerobic infections. Resistance patterns, susceptibility and treatment guidelines vary across regions. [DrugBank]


Penicillin-binding protein 3 (Staphylococcus aureus (strain USA300)); Solute carrier family 22 member 8 (Humans); Solute carrier family 15 member 1 (Humans); Solute carrier family 15 member 2 (Humans) [DrugBank]


Penicillin G is a penicillin beta-lactam antibiotic used in the treatment of bacterial infections caused by susceptible, usually gram-positive, organisms. The name "penicillin" can either refer to several variants of penicillin available, or to the group of antibiotics derived from the penicillins. Penicillin G has in vitro activity against gram-positive and gram-negative aerobic and anaerobic bacteria. The bactericidal activity of penicillin G results from the inhibition of cell wall synthesis and is mediated through penicillin G binding to penicillin binding proteins (PBPs). Penicillin G is stable against hydrolysis by a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases. [DrugBank]




2D structures:  

3D structures:  

Docking in target protein

Receptor: PL-PRO

Docking Site: S3/S4 pockets

Ligand: Benzylpenicillin

Vina score: -6.9

Off-target analysis based on ligand similarity (Homo sapiens)

Step 1 - Target prediction for Benzylpenicillin: SwissTargetPrediction

Tips: Click on the link to jump to the 'SwissTargetPrediction' webserver. Select the species of 'Homo sapiens', and then paste the SMILES of Benzylpenicillin in the SMILES input box.

Step 2 - Blind docking for Benzylpenicillin: CB-Dock

Tips: Click on the link to jump to the 'CB-Dock' webserver. Upload the structure file of target predicted by 'SwissTargetPrediction' and the 2D/3D structure file of Benzylpenicillin to perform blind docking.