Evidence map›Paper›PMID 21058727›Full record

ArticleJournal of natural products2010

Scytonemides A and B, cyclic peptides with 20S proteasome inhibitory activity from the cultured cyanobacterium Scytonema hofmanii.

Aleksej Krunic, Armelle Vallat, Shunyan Mo, Daniel D Lantvit, Steven M Swanson, Jimmy Orjala

Abstract read
In one paragraph

Article in Journal of natural products, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.1field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 39 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Aleksej KrunicDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States.
Armelle Vallat
Shunyan Mo
Daniel D Lantvit
Steven M Swanson
Jimmy Orjala
University of Illinois Chicago · US

Funding

Project 3:Isolation Chemistry of Filamentous Fungi and Biological EvaluationP01CA125066 · NCI · OHIO STATE UNIVERSITY · PI JAMES R FUCHS · 2007 to 2026
$27.2M
900MHz NMR for Structural Biology in ChicagoP41GM068944 · NIGMS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GETTINS, PETER G.W. · 2003 to 2007
$6.2M
Microscale LC-MS and NMR Methodology:Rapid Natural (RMI)R01GM075856 · NIGMS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI ORJALA, JIMMY · 2005 to 2007
$1.1M
NCI NIH HHS P01 CA125066NIGMS NIH HHS P41 GM068944NIGMS NIH HHS P41 GM68944NIGMS NIH HHS R01 GM0758556NIGMS NIH HHS R01 GM075856
6 · The paper itself

Abstract

Two cyclic peptides, scytonemides A (1) and B (2), were isolated from the cultured fresh water cyanobacterium Scytonema hofmannii (UTEX 1834) by bioassay-guided fractionation using a proteasome inhibition assay. The planar structures of the compounds were determined by a combination of MS and 1D and 2D NMR spectroscopy. The advanced Marfey's method was used to determine the absolute configuration of both peptides. Scytonemide A possesses an unusual imino linkage, while scytonemide B is a depsipeptide containing 3-hydroxyoctanoic acid in the macrocycle. Both isolates were evaluated for their inhibition of the 20S proteasome, and scytonemide A displayed an IC(50) value of 96 nM, while scytonemide B was inactive at 50 μM.

Indexed as

Proteasome InhibitorsAntineoplastic AgentsCaprylatesCyanobacteriaDepsipeptidesDrug Screening Assays, AntitumorHT29 CellsHumansInhibitory Concentration 50Molecular StructureNuclear Magnetic Resonance, Biomolecular3-hydroxyoctanoic acidAntineoplastic AgentsCaprylatesDepsipeptidesProteasome Inhibitorsscytonemide Ascytonemide B

Identifiers

PMID21058727
PMCPMC3074188
OpenAlexW1990881795

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.