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You are here:Home » Biochemicals » Biochem-Drugs/Analogues » Virginiamycin B

Virginiamycin B


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Virginiamycin B is a depsipeptide antibiotic co-produced with ostreogrycin A and used as a synergistic mixture. Virginiamycin B, also known as ostreogrycin B and streptogramin B among other synonyms, was discovered independently and named by several groups leading to considerable confusion in the literature. Viriginiamycin B acts as a synergist binding to the conformational change in the peptidyl transferase centre of the 50S ribosome induced by ostreogrycin A.
Catalog #V2122-82A
SourceVigriniamycin B from Streptomyces sp.
Molecular Weight~867
SolubilitySoluble in ethanol, methanol, DMF or DMSO. Limited water solubility
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with DMSO. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
CAS Number3131-03-1
Molecular FormulaC45H54N8O10
Molecular Weight~867
Purity~99% (HPLC)
ConcentrationNot determined
FormSupplied as a white solid.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.

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