Naturalproductman’s Blog

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Archive for the ‘Chemical Biology’ Category

Cholesterol analog to probe SHH protein

Posted by naturalproductman on August 20, 2014

Edward Tate and co-workers from Imperial College in London have reported in Chemical Science on a cholesterol analog that allowed them to probe the sonic hedgehog protein, a peptide that undergoes post-translational modification with cholesterol.

cholesterol

Chemical Science paper

Posted in Chemical Biology, Unnatural Products | Leave a Comment »

Merochlorins A and B syntheses, enzymatically

Posted by naturalproductman on August 18, 2014

Bradley Moore and Phil Baran’s groups teamed up to synthesize merochlorin A and B.

Merochlorin

ACIE paper

Posted in Biosynthesis, Chemical Biology, Enzymatic, Polyketides, Total Synthesis | Leave a Comment »

Lomaiviticins and DNA damage

Posted by naturalproductman on July 16, 2014

Seth Herzon and co-workers have reported in ACIE on the DNA damage activity of lomaiviticins.

lomaiviticins

ACIE paper

Posted in Aromatic, Chemical Biology | Leave a Comment »

Polyketide-peptide hybrid

Posted by naturalproductman on June 28, 2014

Liangcheng Du and co-workers at University of Nebraska-Lincoln have reported in ACIE on a polyketide synthase–nonribosomal peptide synthetase that made a hybrid polyketide-peptide compound.

polyketide

ACIE paper

Posted in Chemical Biology, Hybrids, Peptides, Polyketides | Leave a Comment »

So they made the trophy target, now what?

Posted by naturalproductman on May 29, 2014

Did you ever wonder what happened to palau’amine after they synthesized it? Was it the end of the story there? Well they did publish in the Journal of Natural Products in 2012 on the target of palau’amine and it was an inhibitor for the human 20S proteasome. You may wonder what the proteasome does:  it just degrades proteins (broken down or not needed) through proteolysis. Is that exciting? Well that may be a subjective question. It may be like saying is Coke delicious?

 

JNP paper

 

Posted in Alkaloids, Chemical Biology, Elucidation of natural product bioactivity, Protein Targets | Leave a Comment »

Biosynthesis of andrastin A

Posted by naturalproductman on August 3, 2013

Ikuro Abe and co-workers from the University of Tokyo have reported in Tetrahedron on how they reconstituted the biosynthetic pathway for andrastin A in a fungus.

andrastin

Tetrahedron paper

Posted in Biosynthesis, Chemical Biology | Leave a Comment »

Artemisinin semi-synthesis

Posted by naturalproductman on April 25, 2013

Newman and co-workers at Amyris have reported their large scale semi synthesis of artemisinin.

Nature paper

Posted in Chemical Biology | Leave a Comment »

Paxilline biosynthesis

Posted by naturalproductman on January 17, 2013

Hideaki Oikawa and co-workers at Hokkaido University have reported in JACS on a biosynthesis study of paxilline.

paxilline

JACS paper

Posted in Alkaloids, Chemical Biology, Diterpene, Indoles | Leave a Comment »

Not just isolating small molecules anymore…

Posted by naturalproductman on January 17, 2013

Hideaki Oikawa and co-workers from Hokkaido University have reported in Organic Letters on the isolation of an enzyme that was known to produce some natural products. They expressed and purified the enzyme, incubated the enzyme in the presence of substrates:  geranyl diphosphate (GPP) and isopentenyl diphosphate (IPP), and examined the products.

sesterterpene synthase

OL paper

Posted in Chemical Biology, Enzymes, Methodology, Proteins, Sesterterpenes | Leave a Comment »

Aplyronine A target

Posted by naturalproductman on December 11, 2012

Hideo Kigoshi and co-workers from the University of Tsukuba have reported in JACS on a chemical biological approach to find the aplyronine A target.

aplyronine A

JACS paper

 

Posted in Chemical Biology, Macrolides, Methodology, Protein Targets | Leave a Comment »

 
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