Cited by 12Microbial Natural Products and BiosynthesisMicrobial Metabolism and ApplicationsBioactive Compounds and Antitumor Agents

New Type II Manumycins Produced by Streptomyces nodosus ssp. asukaensis and Their Biosynthesis.

Open access
HU, YIDING, FLOSS, HEINZ G.·2001·The Journal of Antibiotics

Abstract

Five new type II manumycins, containing the hydroxyquinol mC7N unit, asukamycins A-II, B-II, C-II, D-II, E-II, were discovered in cultures of Streptomyces nodosus ssp. asukaensis. The biosynthetic origin of the type II manumycins from the type I compounds, containing an epoxyquinol mC7N unit, was deduced from the time course of production and proven by preparing [7'-13C]asukamycin A and demonstrating its incorporation into asukamycin A-II.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.7164/antibiotics.54.340

Cites

18 of 18 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Manumycin polyketides possess a suite of electrophilic sites that could potentially react covalently with nucleophilic amino acids within proteins, such as cysteines.

    “These molecules possess a suite of electrophilic sites that could potentially react covalently with nucleophilic amino acids within proteins, such as cysteines (Figure 1a) 19.”
  • Manumycin A has been shown to inhibit farnesyl transferase activity and sphingomyelinase activity.

    “Manumycin A has also been show to inhibit farnesyl transferase activity and sphingomyelinase activity, but asukamycin is not known to inhibit these targets and its anti-cancer mechanism of action is unclear 19–23.”
  • Asukamycin is not known to inhibit farnesyl transferase or sphingomyelinase and its anti-cancer mechanism of action is unclear.

    “Manumycin A has also been show to inhibit farnesyl transferase activity and sphingomyelinase activity, but asukamycin is not known to inhibit these targets and its anti-cancer mechanism of action is unclear 19–23.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
HU, Y., & FLOSS, H. G.
Affiliations
University of Washington (US)
Venue
The Journal of Antibiotics
Published
2001
Volume
54
Issue
4
Pages
340-348
ISSN
  • 0021-8820 (ISSN-L)
  • 1881-1469
OpenAlex
W1989239108
Cited by
12
References
18
Citations by year
2020: 1 · 2019: 1 · 2015: 2 · 2012: 1
FWCI
0.45
Type
journal article
Language
en
Open access
Locations
  • The Journal of Antibiotics (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (AI-20264, R01AI020264)
Topics
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Metabolism and Applications
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Bioactive Compounds and Antitumor Agents
Keywords
biosynthetic origin, 13C labeling, natural product biosynthesis
MeSH terms
Anti-Bacterial Agents, Chromatography, High Pressure Liquid, Chromatography, Thin Layer, Fermentation, Magnetic Resonance Spectroscopy, Polyenes, Mass Spectrometry, Streptomyces, Polyunsaturated Alkamides

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review