Dunaimycin D4S

Dunaimycin D4S

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Category Enzyme inhibitors
Catalog number BBF-01181
CAS 140221-79-0
Molecular Weight 940.25
Molecular Formula C51H89NO14

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Description

It is produced by the strain of Streptomyces diastatochromogenes AB 1691Q-321 and AB 1711J-452. It has weak anti-bacterial and anti-aspergillus Niger activity, and shows immunosuppressive effect in the mouse popliteal node model.

Properties

Appearance Solid
Antibiotic Activity Spectrum Fungi
Melting Point 133-140 °C
Solubility Soluble in Methanol

Reference Reading

1. Dunaimycins, a new complex of spiroketal 24-membered macrolides with immunosuppressive activity. III. Immunosuppressive activities of dunaimycins
N S Burres, U Premachandran, A Frigo, S J Swanson, K W Mollison, T A Fey, R A Krause, V A Thomas, B Lane, L N Miller, et al. J Antibiot (Tokyo). 1991 Dec;44(12):1331-41. doi: 10.7164/antibiotics.44.1331.
The immunosuppressive effects of the dunaimycins, a new complex of spiroketal 24-membered macrolides, were compared to cyclosporin A, ascomycin, and rapamycin. Each dunaimycin was a potent inhibitor of the mitogenic response observed in mixed murine splenocyte or human leukocyte cultures, and like immunosuppressive drugs these compounds were relatively less potent inhibitors of the constitutive proliferation of murine EL4 thymoma cells. Dunaimycin D4S showed no selectivity in inhibiting the mitogenic response of spleen cells to concanavalin A, pokeweed mitogen, lipopolysaccharide, or phytohemagglutinin. Cyclosporin A and ascomycin did not inhibit interleukin 2 dependent proliferation, whereas the dunaimycins and rapamycin blocked the uptake of [3H]thymidine in mixed cultures supplemented with exogenous interleukin 2. In addition, dunaimycin D4S had no apparent affinity for cyclosporin A or FK-506 immunophilins. Although the dunaimycins inhibited the activity of Na+, K(+)-ATPase, inhibition of this enzyme appeared insufficient to explain the biological activity of these new macrolides. Over a narrow concentration range, dunaimycin D4S showed in vivo immunosuppressive activity in the murine popliteal lymph node hyperplasia model.

Bio Calculators

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* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

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Tip: Chemical formula is case sensitive. C22H30N4O c22h30n40
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