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V4140

Sigma-Aldrich

Virginiamycin S1

≥99% (HPLC)

Synonym(s):

dihydro virginiamycin S1, Antibiotic 899, Staphylomycin S

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About This Item

Empirical Formula (Hill Notation):
C43H49N7O10
CAS Number:
23152-29-6
Molecular Weight:
823.89
EC Number:
245-462-6
UNSPSC Code:
51283805
PubChem Substance ID:
329829048
NACRES:
NA.85

biological source

Streptomyces virginiae

Quality Level

100

Assay

≥99% (HPLC)

form

solid

storage condition

(Keep container tightly closed in a dry and well-ventilated place.)

color

white

antibiotic activity spectrum

Gram-positive bacteria

Mode of action

protein synthesis | interferes

storage temp.

−20°C

SMILES string

CC[C@H]1NC(=O)[C@@H](NC(=O)c2ncccc2O)[C@@H](C)OC(=O)[C@@H](NC(=O)[C@@H]3CC(=O)CCN3C(=O)[C@H](Cc4ccccc4)N(C)C(=O)[C@@H]5CCCN5C1=O)c6ccccc6

InChI

1S/C43H49N7O10/c1-4-29-40(56)49-21-12-17-30(49)41(57)48(3)32(23-26-13-7-5-8-14-26)42(58)50-22-19-28(51)24-31(50)37(53)47-35(27-15-9-6-10-16-27)43(59)60-25(2)34(38(54)45-29)46-39(55)36-33(52)18-11-20-44-36/h5-11,13-16,18,20,25,29-32,34-35,52H,4,12,17,19,21-24H2,1-3H3,(H,45,54)(H,46,55)(H,47,53)/t25-,29-,30+,31+,32+,34+,35+/m1/s1

InChI key

FEPMHVLSLDOMQC-IYPFLVAKSA-N

Related Categories

General description

Chemical structure: macrolide

Application

The antibiotic virginiamycin is produced by Streptomyces virginiae and is a member of the virginiamycin family. Each member is produced as a mixture of two structurally different compounds that exhibit synergistic antibacterial activity. There are two groups: virginiamycin M1 (VM1) and virginiamycin S (VS). VS is a cyclic hexadepsipeptide. VS and VM1 are both used to inhibit protein synthesis since they are bacteriostatic. When used in combination they are more effective. Virginiamycin is used as a performance promoter in animal husbandry. It is chemically modified to make therapeutic drugs such as quinupristin and dalfopristin.

Biochem/physiol Actions

Virginiamycin S inhibits bacterial protein synthesis at the level of aminoacyl-tRNA binding and peptide bond formation. It inactivates the 50S ribosome. VS is a cyclic hexadepsipeptide containing a nonproteinogenic amino acid, Lphenylglycine (L-pheGly), in its core structure. The visG gene is required for VS biosynthesis. Nonribosomal peptide synthetase (NRPS) may be involved in VS biosynthesis. Virginiamycin S is active against Gram-positive bacteria.
Cyclic polypeptide antibiotic from Streptomyces sp. Acts as a synergist binding to the conformational change in the peptidyl transferase center fo the 50S ribosome.

Preparation Note

Soluble in ethanol, methanol, DMF or DMSO. Limited water solubility.

Other Notes

Keep container tightly closed in a dry and well-ventilated place.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

监管及禁止进口产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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N Suzuki et al.
Antimicrobial agents and chemotherapy, 42(11), 2985-2988 (1998-10-31)
Virginiamycin M1 (VM1), produced by Streptomyces virginiae, is a polyunsaturated macrocyclic lactone antibiotic belonging to the virginiamycin A group. S. virginiae possesses an activity which stereospecifically reduces a 16-carbonyl group of VM1, resulting in antibiotically inactive 16R-dihydroVM1. The corresponding VM1
VisG is eβential for biosynthesis of virginiamycin S, a streptogramin type B antibiotic, as a provider of the nonproteinogenic amino acid phenylglycine
Fitria Ningsih, Shigeru Kitani, et al.
Microbiology, 167, 3213 - 3220 (2011)

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