VIR is found in 5 entries

VIR as free ligands, exist in 5 entries. Examples include 1KHR, 1N8R, 1YIT

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View summary at Ligand Expo

Chemical Component Summary

Identifiers (3R,4R,5E,10E,12E,14S)-14-hydroxy-4,12-dimethyl-3-(1-methylethyl)-8,9,14,15,24,25-hexahydro-1H,3H,22H-21,18-(azeno)pyrrolo[2,1-c][1,8,4,19]dioxadiazacyclotetracosine-1,7,16,22(4H,17H)-tetrone
Formula C28 H35 N3 O7
Molecular Weight 525.59 g/mol
Type non-polymer
Isomeric SMILES CC(C)[C@H]1OC(=O)C2=CCCN2C(=O)c2coc(CC(=O)C[C@H](O)\C=C(/C)\C=C\CNC(=O)\C=C\[C@H]1C)n2
InChI InChI=1S/C28H35N3O7/c1-17(2)26-19(4)9-10-24(34)29-11-5-7-18(3)13-20(32)14-21(33)15-25-30-22(16-37-25)27(35)31-12-6-8-23(31)28(36)38-26/h5,7-10,13,16-17,19-20,26,32H,6,11-12,14-15H2,1-4H3,(H,29,34)/b7-5+,10-9+,18-13+/t19-,20-,26-/m1/s1

Chemical Details

Formal Charge 0
Atom Count 73
Chiral Atom Count 3
Chiral Atoms C17 C30 C32
Bond Count 75
Aromatic Bond Count 5

Drug Info: DrugBank

DrugBank ID DB01669   (Stereoisomeric match)
Name Virginiamycin M1
Groups experimental
Description Pristinamycin IIA is a macrolide antibiotic. It is a member of the streptogramin A group of antibiotics and one component of pristinamycin (the other being pristinamycin IA). It is produced by Streptomyces graminofaciens and other bacteria.
  • Mikamycin A
  • Ostreogrycin A
  • Pristinamycin IIA
  • Streptogramin A
Brand Names
Affected Organism Bacteria
Indication For the treatment of bacterial infections.
Mechanism of action Virginiamycin M1 is a macrocyclic lactone antibiotic that acts syngeristically with the structurally unrelated cyclic depsipeptides more commonly known as the virginiamycins B (ostreogrycin B or streptogramin B) and S to inhibit peptide elongation. This is achieved by blocking formation of a peptide bond between the growing peptide chain (peptidyl-tRNA) linked to the 50S ribosome and aminoacyl-tRNA. Virginiamycin M1 has proven to be highly active against Gram positive bacteria, particularly methicillin-resistant S. aureus.
Categories Anti-Bacterial Agents
CAS number 21411-53-0

Drug Targets

Name Sequence Search Pharmacological Action Actions
Streptogramin A acetyltransferase ,Streptogramin A acetyltransferase"> Search unknown
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID: 21059682