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Related Experiment Video

Updated: May 7, 2026

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

Published on: April 20, 2012

New Sesterterpenes from the Antarctic Sponge Suberites sp.

Stine S H Olsen¹, Sydney K Morrow¹, Julia L Szabo¹

¹Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE205, Tampa, FL 33620, USA.

|December 27, 2024

Summary

Researchers discovered new compounds from an Antarctic sponge, with one showing moderate activity against respiratory syncytial virus (RSV). This finding offers potential for new antiviral therapies.

Keywords:

Antarctica RSV Suberites sp.porifera sesterterpenes suberitane

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Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

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Published on: April 20, 2012

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms

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Published on: January 11, 2015

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products

Published on: October 4, 2019

Area of Science:

Marine natural products chemistry
Antiviral drug discovery
Organic chemistry

Background:

Antarctic sponges, particularly *Suberites* sp., are a source of novel suberitane derivatives.
Some previously identified suberitane derivatives exhibit bioactivity against respiratory syncytial virus (RSV).

Purpose of the Study:

To isolate and characterize new chemical entities from Antarctic sponge *Suberites* sp.
To evaluate the antiviral activity of isolated compounds against RSV.

Main Methods:

NMR-guided isolation and purification techniques.
High-resolution mass spectrometry (HR-MS) for molecular formula determination.
X-ray diffraction (XRD) for definitive structural elucidation.

Main Results:

Five new analogs (1-5), including suberitenone K (1), suberitandiol (2), abeosuberitandiol (3), furanosuberitandiol (4), and norsuberitenone B (5), were isolated.
Compounds 3 and 4 possess unique structural features: ring contraction and a dihydrofuran ring, respectively.
Suberitenone K (1) and previously reported suberitenone D (9) demonstrated moderate activity against RSV, with IC50 values of 39.8 μM and 15.0 μM.

Conclusions:

The Antarctic sponge *Suberites* sp. continues to yield structurally diverse and biologically relevant compounds.
New suberitane derivatives, particularly suberitenone K, show promise as potential agents for combating RSV infections.