English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

New antitumor antibiotics, elsamicins A and B, were isolated from the culture broth of an unidentified actinomycete strain J907-21 (ATCC 39417). They are structurally related to chartreusin, containing the common aglycone, chartarin, but contain different sugar moieties. Elsamicin A, the major component, has an amino sugar in the molecule which makes the antibiotic much more water-soluble than chartreusin. Elsamicin A exhibits strong inhibitory activity against various murine tumors including leukemia P388, leukemia L1210, and melanoma B16 but elsamicin B which lacks the amino sugar showed only marginal activity. The potency of elsamicin A was 10-30 times more potent than that of chartreusin in terms of minimum effective dose.

Elsamicins, new antitumor antibiotics related to chartreusin. I. Production, isolation, characterization and antitumor activity.